dottes: abc2xml/pyparsing.py annotate

annotate abc2xml/pyparsing.py @ 851:4bfff0cce12d

Change morris image to another Barbara P work.

author	Jim Hague <jim.hague@acm.org>
date	Sat, 23 Mar 2019 15:05:20 +0000
parents	4fab69a1027d
children	b1dbb76f4eb9

rev	line source
484 4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1 # module pyparsing.py
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3 # Copyright (c) 2003-2011 Paul T. McGuire
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	4 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	5 # Permission is hereby granted, free of charge, to any person obtaining
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	6 # a copy of this software and associated documentation files (the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	7 # "Software"), to deal in the Software without restriction, including
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	8 # without limitation the rights to use, copy, modify, merge, publish,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	9 # distribute, sublicense, and/or sell copies of the Software, and to
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	10 # permit persons to whom the Software is furnished to do so, subject to
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	11 # the following conditions:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	12 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	13 # The above copyright notice and this permission notice shall be
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	14 # included in all copies or substantial portions of the Software.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	15 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	17 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	18 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	19 # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	20 # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	21 # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	22 # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	23 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	24 #from __future__ import generators
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	25
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	26 __doc__ = \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	27 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	28 pyparsing module - Classes and methods to define and execute parsing grammars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	29
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	30 The pyparsing module is an alternative approach to creating and executing simple grammars,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	31 vs. the traditional lex/yacc approach, or the use of regular expressions. With pyparsing, you
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	32 don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	33 provides a library of classes that you use to construct the grammar directly in Python.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	34
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	35 Here is a program to parse "Hello, World!" (or any greeting of the form C{"<salutation>, <addressee>!"})::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	36
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	37 from pyparsing import Word, alphas
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	38
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	39 # define grammar of a greeting
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	40 greet = Word( alphas ) + "," + Word( alphas ) + "!"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	41
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	42 hello = "Hello, World!"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	43 print hello, "->", greet.parseString( hello )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	44
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	45 The program outputs the following::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	46
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	47 Hello, World! -> ['Hello', ',', 'World', '!']
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	48
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	49 The Python representation of the grammar is quite readable, owing to the self-explanatory
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	50 class names, and the use of '+', '\|' and '^' operators.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	51
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	52 The parsed results returned from C{parseString()} can be accessed as a nested list, a dictionary, or an
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	53 object with named attributes.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	54
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	55 The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	56 - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello , World !", etc.)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	57 - quoted strings
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	58 - embedded comments
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	59 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	60
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	61 __version__ = "1.5.6"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	62 __versionTime__ = "26 June 2011 10:53"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	63 __author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	64
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	65 import string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	66 from weakref import ref as wkref
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	67 import copy
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	68 import sys
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	69 import warnings
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	70 import re
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	71 import sre_constants
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	72 #~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	73
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	74 __all__ = [
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	75 'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	76 'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	77 'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	78 'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	79 'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	80 'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter', 'Upcase',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	81 'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	82 'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	83 'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	84 'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'getTokensEndLoc', 'hexnums',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	85 'htmlComment', 'javaStyleComment', 'keepOriginalText', 'line', 'lineEnd', 'lineStart', 'lineno',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	86 'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	87 'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	88 'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	89 'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	90 'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	91 'indentedBlock', 'originalTextFor',
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	92 ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	93
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	94 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	95 Detect if we are running version 3.X and make appropriate changes
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	96 Robert A. Clark
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	97 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	98 _PY3K = sys.version_info[0] > 2
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	99 if _PY3K:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	100 _MAX_INT = sys.maxsize
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	101 basestring = str
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	102 unichr = chr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	103 _ustr = str
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	104 alphas = string.ascii_lowercase + string.ascii_uppercase
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	105 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	106 _MAX_INT = sys.maxint
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	107 range = xrange
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	108 set = lambda s : dict( [(c,0) for c in s] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	109 alphas = string.lowercase + string.uppercase
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	110
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	111 def _ustr(obj):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	112 """Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	113 str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	114 then < returns the unicode object \| encodes it with the default encoding \| ... >.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	115 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	116 if isinstance(obj,unicode):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	117 return obj
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	118
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	119 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	120 # If this works, then _ustr(obj) has the same behaviour as str(obj), so
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	121 # it won't break any existing code.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	122 return str(obj)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	123
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	124 except UnicodeEncodeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	125 # The Python docs (http://docs.python.org/ref/customization.html#l2h-182)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	126 # state that "The return value must be a string object". However, does a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	127 # unicode object (being a subclass of basestring) count as a "string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	128 # object"?
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	129 # If so, then return a unicode object:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	130 return unicode(obj)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	131 # Else encode it... but how? There are many choices... :)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	132 # Replace unprintables with escape codes?
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	133 #return unicode(obj).encode(sys.getdefaultencoding(), 'backslashreplace_errors')
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	134 # Replace unprintables with question marks?
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	135 #return unicode(obj).encode(sys.getdefaultencoding(), 'replace')
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	136 # ...
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	137
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	138 alphas = string.lowercase + string.uppercase
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	139
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	140 # build list of single arg builtins, tolerant of Python version, that can be used as parse actions
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	141 singleArgBuiltins = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	142 import __builtin__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	143 for fname in "sum len enumerate sorted reversed list tuple set any all".split():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	144 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	145 singleArgBuiltins.append(getattr(__builtin__,fname))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	146 except AttributeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	147 continue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	148
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	149 def _xml_escape(data):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	150 """Escape &, <, >, ", ', etc. in a string of data."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	151
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	152 # ampersand must be replaced first
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	153 from_symbols = '&><"\''
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	154 to_symbols = ['&'+s+';' for s in "amp gt lt quot apos".split()]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	155 for from_,to_ in zip(from_symbols, to_symbols):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	156 data = data.replace(from_, to_)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	157 return data
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	158
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	159 class _Constants(object):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	160 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	161
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	162 nums = string.digits
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	163 hexnums = nums + "ABCDEFabcdef"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	164 alphanums = alphas + nums
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	165 _bslash = chr(92)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	166 printables = "".join( [ c for c in string.printable if c not in string.whitespace ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	167
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	168 class ParseBaseException(Exception):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	169 """base exception class for all parsing runtime exceptions"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	170 # Performance tuning: we construct a lot of these, so keep this
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	171 # constructor as small and fast as possible
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	172 def __init__( self, pstr, loc=0, msg=None, elem=None ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	173 self.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	174 if msg is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	175 self.msg = pstr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	176 self.pstr = ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	177 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	178 self.msg = msg
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	179 self.pstr = pstr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	180 self.parserElement = elem
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	181
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	182 def __getattr__( self, aname ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	183 """supported attributes by name are:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	184 - lineno - returns the line number of the exception text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	185 - col - returns the column number of the exception text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	186 - line - returns the line containing the exception text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	187 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	188 if( aname == "lineno" ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	189 return lineno( self.loc, self.pstr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	190 elif( aname in ("col", "column") ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	191 return col( self.loc, self.pstr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	192 elif( aname == "line" ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	193 return line( self.loc, self.pstr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	194 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	195 raise AttributeError(aname)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	196
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	197 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	198 return "%s (at char %d), (line:%d, col:%d)" % \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	199 ( self.msg, self.loc, self.lineno, self.column )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	200 def __repr__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	201 return _ustr(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	202 def markInputline( self, markerString = ">!<" ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	203 """Extracts the exception line from the input string, and marks
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	204 the location of the exception with a special symbol.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	205 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	206 line_str = self.line
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	207 line_column = self.column - 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	208 if markerString:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	209 line_str = "".join( [line_str[:line_column],
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	210 markerString, line_str[line_column:]])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	211 return line_str.strip()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	212 def __dir__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	213 return "loc msg pstr parserElement lineno col line " \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	214 "markInputLine __str__ __repr__".split()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	215
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	216 class ParseException(ParseBaseException):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	217 """exception thrown when parse expressions don't match class;
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	218 supported attributes by name are:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	219 - lineno - returns the line number of the exception text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	220 - col - returns the column number of the exception text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	221 - line - returns the line containing the exception text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	222 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	223 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	224
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	225 class ParseFatalException(ParseBaseException):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	226 """user-throwable exception thrown when inconsistent parse content
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	227 is found; stops all parsing immediately"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	228 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	229
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	230 class ParseSyntaxException(ParseFatalException):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	231 """just like C{ParseFatalException}, but thrown internally when an
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	232 C{ErrorStop} ('-' operator) indicates that parsing is to stop immediately because
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	233 an unbacktrackable syntax error has been found"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	234 def __init__(self, pe):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	235 super(ParseSyntaxException, self).__init__(
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	236 pe.pstr, pe.loc, pe.msg, pe.parserElement)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	237
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	238 #~ class ReparseException(ParseBaseException):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	239 #~ """Experimental class - parse actions can raise this exception to cause
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	240 #~ pyparsing to reparse the input string:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	241 #~ - with a modified input string, and/or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	242 #~ - with a modified start location
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	243 #~ Set the values of the ReparseException in the constructor, and raise the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	244 #~ exception in a parse action to cause pyparsing to use the new string/location.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	245 #~ Setting the values as None causes no change to be made.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	246 #~ """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	247 #~ def __init_( self, newstring, restartLoc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	248 #~ self.newParseText = newstring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	249 #~ self.reparseLoc = restartLoc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	250
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	251 class RecursiveGrammarException(Exception):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	252 """exception thrown by C{validate()} if the grammar could be improperly recursive"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	253 def __init__( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	254 self.parseElementTrace = parseElementList
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	255
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	256 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	257 return "RecursiveGrammarException: %s" % self.parseElementTrace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	258
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	259 class _ParseResultsWithOffset(object):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	260 def __init__(self,p1,p2):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	261 self.tup = (p1,p2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	262 def __getitem__(self,i):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	263 return self.tup[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	264 def __repr__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	265 return repr(self.tup)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	266 def setOffset(self,i):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	267 self.tup = (self.tup[0],i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	268
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	269 class ParseResults(object):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	270 """Structured parse results, to provide multiple means of access to the parsed data:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	271 - as a list (C{len(results)})
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	272 - by list index (C{results[0], results[1]}, etc.)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	273 - by attribute (C{results.<resultsName>})
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	274 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	275 #~ __slots__ = ( "__toklist", "__tokdict", "__doinit", "__name", "__parent", "__accumNames", "__weakref__" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	276 def __new__(cls, toklist, name=None, asList=True, modal=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	277 if isinstance(toklist, cls):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	278 return toklist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	279 retobj = object.__new__(cls)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	280 retobj.__doinit = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	281 return retobj
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	282
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	283 # Performance tuning: we construct a lot of these, so keep this
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	284 # constructor as small and fast as possible
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	285 def __init__( self, toklist, name=None, asList=True, modal=True, isinstance=isinstance ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	286 if self.__doinit:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	287 self.__doinit = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	288 self.__name = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	289 self.__parent = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	290 self.__accumNames = {}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	291 if isinstance(toklist, list):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	292 self.__toklist = toklist[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	293 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	294 self.__toklist = [toklist]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	295 self.__tokdict = dict()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	296
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	297 if name is not None and name:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	298 if not modal:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	299 self.__accumNames[name] = 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	300 if isinstance(name,int):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	301 name = _ustr(name) # will always return a str, but use _ustr for consistency
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	302 self.__name = name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	303 if not toklist in (None,'',[]):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	304 if isinstance(toklist,basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	305 toklist = [ toklist ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	306 if asList:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	307 if isinstance(toklist,ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	308 self[name] = _ParseResultsWithOffset(toklist.copy(),0)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	309 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	310 self[name] = _ParseResultsWithOffset(ParseResults(toklist[0]),0)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	311 self[name].__name = name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	312 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	313 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	314 self[name] = toklist[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	315 except (KeyError,TypeError,IndexError):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	316 self[name] = toklist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	317
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	318 def __getitem__( self, i ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	319 if isinstance( i, (int,slice) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	320 return self.__toklist[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	321 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	322 if i not in self.__accumNames:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	323 return self.__tokdict[i][-1][0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	324 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	325 return ParseResults([ v[0] for v in self.__tokdict[i] ])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	326
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	327 def __setitem__( self, k, v, isinstance=isinstance ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	328 if isinstance(v,_ParseResultsWithOffset):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	329 self.__tokdict[k] = self.__tokdict.get(k,list()) + [v]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	330 sub = v[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	331 elif isinstance(k,int):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	332 self.__toklist[k] = v
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	333 sub = v
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	334 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	335 self.__tokdict[k] = self.__tokdict.get(k,list()) + [_ParseResultsWithOffset(v,0)]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	336 sub = v
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	337 if isinstance(sub,ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	338 sub.__parent = wkref(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	339
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	340 def __delitem__( self, i ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	341 if isinstance(i,(int,slice)):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	342 mylen = len( self.__toklist )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	343 del self.__toklist[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	344
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	345 # convert int to slice
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	346 if isinstance(i, int):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	347 if i < 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	348 i += mylen
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	349 i = slice(i, i+1)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	350 # get removed indices
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	351 removed = list(range(*i.indices(mylen)))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	352 removed.reverse()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	353 # fixup indices in token dictionary
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	354 for name in self.__tokdict:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	355 occurrences = self.__tokdict[name]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	356 for j in removed:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	357 for k, (value, position) in enumerate(occurrences):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	358 occurrences[k] = _ParseResultsWithOffset(value, position - (position > j))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	359 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	360 del self.__tokdict[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	361
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	362 def __contains__( self, k ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	363 return k in self.__tokdict
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	364
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	365 def __len__( self ): return len( self.__toklist )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	366 def __bool__(self): return len( self.__toklist ) > 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	367 __nonzero__ = __bool__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	368 def __iter__( self ): return iter( self.__toklist )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	369 def __reversed__( self ): return iter( self.__toklist[::-1] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	370 def keys( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	371 """Returns all named result keys."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	372 return self.__tokdict.keys()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	373
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	374 def pop( self, index=-1 ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	375 """Removes and returns item at specified index (default=last).
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	376 Will work with either numeric indices or dict-key indicies."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	377 ret = self[index]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	378 del self[index]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	379 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	380
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	381 def get(self, key, defaultValue=None):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	382 """Returns named result matching the given key, or if there is no
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	383 such name, then returns the given C{defaultValue} or C{None} if no
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	384 C{defaultValue} is specified."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	385 if key in self:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	386 return self[key]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	387 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	388 return defaultValue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	389
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	390 def insert( self, index, insStr ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	391 """Inserts new element at location index in the list of parsed tokens."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	392 self.__toklist.insert(index, insStr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	393 # fixup indices in token dictionary
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	394 for name in self.__tokdict:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	395 occurrences = self.__tokdict[name]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	396 for k, (value, position) in enumerate(occurrences):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	397 occurrences[k] = _ParseResultsWithOffset(value, position + (position > index))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	398
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	399 def items( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	400 """Returns all named result keys and values as a list of tuples."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	401 return [(k,self[k]) for k in self.__tokdict]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	402
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	403 def values( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	404 """Returns all named result values."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	405 return [ v[-1][0] for v in self.__tokdict.values() ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	406
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	407 def __getattr__( self, name ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	408 if True: #name not in self.__slots__:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	409 if name in self.__tokdict:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	410 if name not in self.__accumNames:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	411 return self.__tokdict[name][-1][0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	412 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	413 return ParseResults([ v[0] for v in self.__tokdict[name] ])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	414 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	415 return ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	416 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	417
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	418 def __add__( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	419 ret = self.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	420 ret += other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	421 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	422
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	423 def __iadd__( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	424 if other.__tokdict:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	425 offset = len(self.__toklist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	426 addoffset = ( lambda a: (a<0 and offset) or (a+offset) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	427 otheritems = other.__tokdict.items()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	428 otherdictitems = [(k, _ParseResultsWithOffset(v[0],addoffset(v[1])) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	429 for (k,vlist) in otheritems for v in vlist]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	430 for k,v in otherdictitems:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	431 self[k] = v
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	432 if isinstance(v[0],ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	433 v[0].__parent = wkref(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	434
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	435 self.__toklist += other.__toklist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	436 self.__accumNames.update( other.__accumNames )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	437 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	438
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	439 def __radd__(self, other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	440 if isinstance(other,int) and other == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	441 return self.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	442
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	443 def __repr__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	444 return "(%s, %s)" % ( repr( self.__toklist ), repr( self.__tokdict ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	445
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	446 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	447 out = "["
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	448 sep = ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	449 for i in self.__toklist:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	450 if isinstance(i, ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	451 out += sep + _ustr(i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	452 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	453 out += sep + repr(i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	454 sep = ", "
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	455 out += "]"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	456 return out
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	457
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	458 def _asStringList( self, sep='' ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	459 out = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	460 for item in self.__toklist:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	461 if out and sep:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	462 out.append(sep)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	463 if isinstance( item, ParseResults ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	464 out += item._asStringList()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	465 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	466 out.append( _ustr(item) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	467 return out
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	468
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	469 def asList( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	470 """Returns the parse results as a nested list of matching tokens, all converted to strings."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	471 out = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	472 for res in self.__toklist:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	473 if isinstance(res,ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	474 out.append( res.asList() )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	475 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	476 out.append( res )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	477 return out
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	478
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	479 def asDict( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	480 """Returns the named parse results as dictionary."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	481 return dict( self.items() )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	482
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	483 def copy( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	484 """Returns a new copy of a C{ParseResults} object."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	485 ret = ParseResults( self.__toklist )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	486 ret.__tokdict = self.__tokdict.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	487 ret.__parent = self.__parent
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	488 ret.__accumNames.update( self.__accumNames )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	489 ret.__name = self.__name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	490 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	491
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	492 def asXML( self, doctag=None, namedItemsOnly=False, indent="", formatted=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	493 """Returns the parse results as XML. Tags are created for tokens and lists that have defined results names."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	494 nl = "\n"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	495 out = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	496 namedItems = dict( [ (v[1],k) for (k,vlist) in self.__tokdict.items()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	497 for v in vlist ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	498 nextLevelIndent = indent + " "
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	499
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	500 # collapse out indents if formatting is not desired
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	501 if not formatted:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	502 indent = ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	503 nextLevelIndent = ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	504 nl = ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	505
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	506 selfTag = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	507 if doctag is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	508 selfTag = doctag
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	509 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	510 if self.__name:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	511 selfTag = self.__name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	512
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	513 if not selfTag:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	514 if namedItemsOnly:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	515 return ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	516 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	517 selfTag = "ITEM"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	518
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	519 out += [ nl, indent, "<", selfTag, ">" ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	520
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	521 worklist = self.__toklist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	522 for i,res in enumerate(worklist):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	523 if isinstance(res,ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	524 if i in namedItems:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	525 out += [ res.asXML(namedItems[i],
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	526 namedItemsOnly and doctag is None,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	527 nextLevelIndent,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	528 formatted)]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	529 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	530 out += [ res.asXML(None,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	531 namedItemsOnly and doctag is None,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	532 nextLevelIndent,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	533 formatted)]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	534 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	535 # individual token, see if there is a name for it
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	536 resTag = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	537 if i in namedItems:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	538 resTag = namedItems[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	539 if not resTag:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	540 if namedItemsOnly:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	541 continue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	542 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	543 resTag = "ITEM"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	544 xmlBodyText = _xml_escape(_ustr(res))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	545 out += [ nl, nextLevelIndent, "<", resTag, ">",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	546 xmlBodyText,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	547 "</", resTag, ">" ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	548
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	549 out += [ nl, indent, "</", selfTag, ">" ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	550 return "".join(out)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	551
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	552 def __lookup(self,sub):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	553 for k,vlist in self.__tokdict.items():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	554 for v,loc in vlist:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	555 if sub is v:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	556 return k
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	557 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	558
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	559 def getName(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	560 """Returns the results name for this token expression."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	561 if self.__name:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	562 return self.__name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	563 elif self.__parent:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	564 par = self.__parent()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	565 if par:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	566 return par.__lookup(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	567 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	568 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	569 elif (len(self) == 1 and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	570 len(self.__tokdict) == 1 and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	571 self.__tokdict.values()[0][0][1] in (0,-1)):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	572 return self.__tokdict.keys()[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	573 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	574 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	575
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	576 def dump(self,indent='',depth=0):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	577 """Diagnostic method for listing out the contents of a C{ParseResults}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	578 Accepts an optional C{indent} argument so that this string can be embedded
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	579 in a nested display of other data."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	580 out = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	581 out.append( indent+_ustr(self.asList()) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	582 keys = self.items()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	583 keys.sort()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	584 for k,v in keys:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	585 if out:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	586 out.append('\n')
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	587 out.append( "%s%s- %s: " % (indent,(' '*depth), k) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	588 if isinstance(v,ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	589 if v.keys():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	590 out.append( v.dump(indent,depth+1) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	591 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	592 out.append(_ustr(v))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	593 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	594 out.append(_ustr(v))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	595 return "".join(out)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	596
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	597 # add support for pickle protocol
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	598 def __getstate__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	599 return ( self.__toklist,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	600 ( self.__tokdict.copy(),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	601 self.__parent is not None and self.__parent() or None,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	602 self.__accumNames,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	603 self.__name ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	604
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	605 def __setstate__(self,state):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	606 self.__toklist = state[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	607 (self.__tokdict,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	608 par,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	609 inAccumNames,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	610 self.__name) = state[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	611 self.__accumNames = {}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	612 self.__accumNames.update(inAccumNames)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	613 if par is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	614 self.__parent = wkref(par)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	615 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	616 self.__parent = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	617
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	618 def __dir__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	619 return dir(super(ParseResults,self)) + self.keys()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	620
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	621 def col (loc,strg):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	622 """Returns current column within a string, counting newlines as line separators.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	623 The first column is number 1.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	624
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	625 Note: the default parsing behavior is to expand tabs in the input string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	626 before starting the parsing process. See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	627 on parsing strings containing <TAB>s, and suggested methods to maintain a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	628 consistent view of the parsed string, the parse location, and line and column
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	629 positions within the parsed string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	630 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	631 return (loc<len(strg) and strg[loc] == '\n') and 1 or loc - strg.rfind("\n", 0, loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	632
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	633 def lineno(loc,strg):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	634 """Returns current line number within a string, counting newlines as line separators.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	635 The first line is number 1.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	636
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	637 Note: the default parsing behavior is to expand tabs in the input string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	638 before starting the parsing process. See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	639 on parsing strings containing <TAB>s, and suggested methods to maintain a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	640 consistent view of the parsed string, the parse location, and line and column
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	641 positions within the parsed string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	642 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	643 return strg.count("\n",0,loc) + 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	644
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	645 def line( loc, strg ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	646 """Returns the line of text containing loc within a string, counting newlines as line separators.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	647 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	648 lastCR = strg.rfind("\n", 0, loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	649 nextCR = strg.find("\n", loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	650 if nextCR >= 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	651 return strg[lastCR+1:nextCR]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	652 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	653 return strg[lastCR+1:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	654
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	655 def _defaultStartDebugAction( instring, loc, expr ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	656 print ("Match " + _ustr(expr) + " at loc " + _ustr(loc) + "(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	657
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	658 def _defaultSuccessDebugAction( instring, startloc, endloc, expr, toks ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	659 print ("Matched " + _ustr(expr) + " -> " + str(toks.asList()))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	660
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	661 def _defaultExceptionDebugAction( instring, loc, expr, exc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	662 print ("Exception raised:" + _ustr(exc))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	663
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	664 def nullDebugAction(*args):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	665 """'Do-nothing' debug action, to suppress debugging output during parsing."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	666 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	667
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	668 'decorator to trim function calls to match the arity of the target'
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	669 if not _PY3K:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	670 def _trim_arity(func, maxargs=2):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	671 limit = [0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	672 def wrapper(*args):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	673 while 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	674 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	675 return func(*args[limit[0]:])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	676 except TypeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	677 if limit[0] <= maxargs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	678 limit[0] += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	679 continue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	680 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	681 return wrapper
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	682 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	683 def _trim_arity(func, maxargs=2):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	684 limit = maxargs
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	685 def wrapper(*args):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	686 #~ nonlocal limit
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	687 while 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	688 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	689 return func(*args[limit:])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	690 except TypeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	691 if limit:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	692 limit -= 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	693 continue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	694 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	695 return wrapper
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	696
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	697 class ParserElement(object):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	698 """Abstract base level parser element class."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	699 DEFAULT_WHITE_CHARS = " \n\t\r"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	700 verbose_stacktrace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	701
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	702 def setDefaultWhitespaceChars( chars ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	703 """Overrides the default whitespace chars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	704 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	705 ParserElement.DEFAULT_WHITE_CHARS = chars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	706 setDefaultWhitespaceChars = staticmethod(setDefaultWhitespaceChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	707
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	708 def __init__( self, savelist=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	709 self.parseAction = list()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	710 self.failAction = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	711 #~ self.name = "<unknown>" # don't define self.name, let subclasses try/except upcall
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	712 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	713 self.resultsName = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	714 self.saveAsList = savelist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	715 self.skipWhitespace = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	716 self.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	717 self.copyDefaultWhiteChars = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	718 self.mayReturnEmpty = False # used when checking for left-recursion
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	719 self.keepTabs = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	720 self.ignoreExprs = list()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	721 self.debug = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	722 self.streamlined = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	723 self.mayIndexError = True # used to optimize exception handling for subclasses that don't advance parse index
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	724 self.errmsg = ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	725 self.modalResults = True # used to mark results names as modal (report only last) or cumulative (list all)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	726 self.debugActions = ( None, None, None ) #custom debug actions
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	727 self.re = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	728 self.callPreparse = True # used to avoid redundant calls to preParse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	729 self.callDuringTry = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	730
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	731 def copy( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	732 """Make a copy of this C{ParserElement}. Useful for defining different parse actions
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	733 for the same parsing pattern, using copies of the original parse element."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	734 cpy = copy.copy( self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	735 cpy.parseAction = self.parseAction[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	736 cpy.ignoreExprs = self.ignoreExprs[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	737 if self.copyDefaultWhiteChars:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	738 cpy.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	739 return cpy
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	740
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	741 def setName( self, name ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	742 """Define name for this expression, for use in debugging."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	743 self.name = name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	744 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	745 if hasattr(self,"exception"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	746 self.exception.msg = self.errmsg
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	747 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	748
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	749 def setResultsName( self, name, listAllMatches=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	750 """Define name for referencing matching tokens as a nested attribute
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	751 of the returned parse results.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	752 NOTE: this returns a copy of the original C{ParserElement} object;
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	753 this is so that the client can define a basic element, such as an
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	754 integer, and reference it in multiple places with different names.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	755
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	756 You can also set results names using the abbreviated syntax,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	757 C{expr("name")} in place of C{expr.setResultsName("name")} -
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	758 see L{I{__call__}<__call__>}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	759 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	760 newself = self.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	761 if name.endswith("*"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	762 name = name[:-1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	763 listAllMatches=True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	764 newself.resultsName = name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	765 newself.modalResults = not listAllMatches
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	766 return newself
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	767
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	768 def setBreak(self,breakFlag = True):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	769 """Method to invoke the Python pdb debugger when this element is
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	770 about to be parsed. Set C{breakFlag} to True to enable, False to
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	771 disable.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	772 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	773 if breakFlag:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	774 _parseMethod = self._parse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	775 def breaker(instring, loc, doActions=True, callPreParse=True):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	776 import pdb
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	777 pdb.set_trace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	778 return _parseMethod( instring, loc, doActions, callPreParse )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	779 breaker._originalParseMethod = _parseMethod
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	780 self._parse = breaker
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	781 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	782 if hasattr(self._parse,"_originalParseMethod"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	783 self._parse = self._parse._originalParseMethod
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	784 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	785
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	786 def setParseAction( self, fns, *kwargs ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	787 """Define action to perform when successfully matching parse element definition.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	788 Parse action fn is a callable method with 0-3 arguments, called as C{fn(s,loc,toks)},
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	789 C{fn(loc,toks)}, C{fn(toks)}, or just C{fn()}, where:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	790 - s = the original string being parsed (see note below)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	791 - loc = the location of the matching substring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	792 - toks = a list of the matched tokens, packaged as a ParseResults object
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	793 If the functions in fns modify the tokens, they can return them as the return
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	794 value from fn, and the modified list of tokens will replace the original.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	795 Otherwise, fn does not need to return any value.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	796
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	797 Note: the default parsing behavior is to expand tabs in the input string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	798 before starting the parsing process. See L{I{parseString}<parseString>} for more information
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	799 on parsing strings containing <TAB>s, and suggested methods to maintain a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	800 consistent view of the parsed string, the parse location, and line and column
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	801 positions within the parsed string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	802 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	803 self.parseAction = list(map(_trim_arity, list(fns)))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	804 self.callDuringTry = ("callDuringTry" in kwargs and kwargs["callDuringTry"])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	805 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	806
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	807 def addParseAction( self, fns, *kwargs ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	808 """Add parse action to expression's list of parse actions. See L{I{setParseAction}<setParseAction>}."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	809 self.parseAction += list(map(_trim_arity, list(fns)))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	810 self.callDuringTry = self.callDuringTry or ("callDuringTry" in kwargs and kwargs["callDuringTry"])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	811 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	812
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	813 def setFailAction( self, fn ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	814 """Define action to perform if parsing fails at this expression.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	815 Fail acton fn is a callable function that takes the arguments
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	816 C{fn(s,loc,expr,err)} where:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	817 - s = string being parsed
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	818 - loc = location where expression match was attempted and failed
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	819 - expr = the parse expression that failed
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	820 - err = the exception thrown
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	821 The function returns no value. It may throw C{ParseFatalException}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	822 if it is desired to stop parsing immediately."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	823 self.failAction = fn
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	824 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	825
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	826 def _skipIgnorables( self, instring, loc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	827 exprsFound = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	828 while exprsFound:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	829 exprsFound = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	830 for e in self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	831 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	832 while 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	833 loc,dummy = e._parse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	834 exprsFound = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	835 except ParseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	836 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	837 return loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	838
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	839 def preParse( self, instring, loc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	840 if self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	841 loc = self._skipIgnorables( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	842
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	843 if self.skipWhitespace:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	844 wt = self.whiteChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	845 instrlen = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	846 while loc < instrlen and instring[loc] in wt:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	847 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	848
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	849 return loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	850
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	851 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	852 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	853
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	854 def postParse( self, instring, loc, tokenlist ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	855 return tokenlist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	856
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	857 #~ @profile
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	858 def _parseNoCache( self, instring, loc, doActions=True, callPreParse=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	859 debugging = ( self.debug ) #and doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	860
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	861 if debugging or self.failAction:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	862 #~ print ("Match",self,"at loc",loc,"(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	863 if (self.debugActions[0] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	864 self.debugActions[0]( instring, loc, self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	865 if callPreParse and self.callPreparse:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	866 preloc = self.preParse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	867 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	868 preloc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	869 tokensStart = preloc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	870 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	871 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	872 loc,tokens = self.parseImpl( instring, preloc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	873 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	874 raise ParseException( instring, len(instring), self.errmsg, self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	875 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	876 #~ print ("Exception raised:", err)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	877 err = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	878 if self.debugActions[2]:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	879 err = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	880 self.debugActions[2]( instring, tokensStart, self, err )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	881 if self.failAction:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	882 if err is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	883 err = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	884 self.failAction( instring, tokensStart, self, err )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	885 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	886 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	887 if callPreParse and self.callPreparse:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	888 preloc = self.preParse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	889 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	890 preloc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	891 tokensStart = preloc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	892 if self.mayIndexError or loc >= len(instring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	893 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	894 loc,tokens = self.parseImpl( instring, preloc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	895 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	896 raise ParseException( instring, len(instring), self.errmsg, self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	897 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	898 loc,tokens = self.parseImpl( instring, preloc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	899
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	900 tokens = self.postParse( instring, loc, tokens )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	901
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	902 retTokens = ParseResults( tokens, self.resultsName, asList=self.saveAsList, modal=self.modalResults )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	903 if self.parseAction and (doActions or self.callDuringTry):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	904 if debugging:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	905 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	906 for fn in self.parseAction:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	907 tokens = fn( instring, tokensStart, retTokens )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	908 if tokens is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	909 retTokens = ParseResults( tokens,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	910 self.resultsName,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	911 asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	912 modal=self.modalResults )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	913 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	914 #~ print "Exception raised in user parse action:", err
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	915 if (self.debugActions[2] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	916 err = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	917 self.debugActions[2]( instring, tokensStart, self, err )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	918 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	919 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	920 for fn in self.parseAction:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	921 tokens = fn( instring, tokensStart, retTokens )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	922 if tokens is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	923 retTokens = ParseResults( tokens,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	924 self.resultsName,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	925 asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	926 modal=self.modalResults )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	927
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	928 if debugging:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	929 #~ print ("Matched",self,"->",retTokens.asList())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	930 if (self.debugActions[1] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	931 self.debugActions[1]( instring, tokensStart, loc, self, retTokens )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	932
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	933 return loc, retTokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	934
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	935 def tryParse( self, instring, loc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	936 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	937 return self._parse( instring, loc, doActions=False )[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	938 except ParseFatalException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	939 raise ParseException( instring, loc, self.errmsg, self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	940
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	941 # this method gets repeatedly called during backtracking with the same arguments -
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	942 # we can cache these arguments and save ourselves the trouble of re-parsing the contained expression
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	943 def _parseCache( self, instring, loc, doActions=True, callPreParse=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	944 lookup = (self,instring,loc,callPreParse,doActions)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	945 if lookup in ParserElement._exprArgCache:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	946 value = ParserElement._exprArgCache[ lookup ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	947 if isinstance(value, Exception):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	948 raise value
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	949 return (value[0],value[1].copy())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	950 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	951 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	952 value = self._parseNoCache( instring, loc, doActions, callPreParse )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	953 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	954 return value
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	955 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	956 pe = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	957 ParserElement._exprArgCache[ lookup ] = pe
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	958 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	959
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	960 _parse = _parseNoCache
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	961
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	962 # argument cache for optimizing repeated calls when backtracking through recursive expressions
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	963 _exprArgCache = {}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	964 def resetCache():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	965 ParserElement._exprArgCache.clear()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	966 resetCache = staticmethod(resetCache)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	967
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	968 _packratEnabled = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	969 def enablePackrat():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	970 """Enables "packrat" parsing, which adds memoizing to the parsing logic.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	971 Repeated parse attempts at the same string location (which happens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	972 often in many complex grammars) can immediately return a cached value,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	973 instead of re-executing parsing/validating code. Memoizing is done of
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	974 both valid results and parsing exceptions.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	975
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	976 This speedup may break existing programs that use parse actions that
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	977 have side-effects. For this reason, packrat parsing is disabled when
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	978 you first import pyparsing. To activate the packrat feature, your
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	979 program must call the class method C{ParserElement.enablePackrat()}. If
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	980 your program uses C{psyco} to "compile as you go", you must call
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	981 C{enablePackrat} before calling C{psyco.full()}. If you do not do this,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	982 Python will crash. For best results, call C{enablePackrat()} immediately
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	983 after importing pyparsing.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	984 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	985 if not ParserElement._packratEnabled:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	986 ParserElement._packratEnabled = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	987 ParserElement._parse = ParserElement._parseCache
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	988 enablePackrat = staticmethod(enablePackrat)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	989
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	990 def parseString( self, instring, parseAll=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	991 """Execute the parse expression with the given string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	992 This is the main interface to the client code, once the complete
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	993 expression has been built.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	994
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	995 If you want the grammar to require that the entire input string be
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	996 successfully parsed, then set C{parseAll} to True (equivalent to ending
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	997 the grammar with C{StringEnd()}).
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	998
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	999 Note: C{parseString} implicitly calls C{expandtabs()} on the input string,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1000 in order to report proper column numbers in parse actions.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1001 If the input string contains tabs and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1002 the grammar uses parse actions that use the C{loc} argument to index into the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1003 string being parsed, you can ensure you have a consistent view of the input
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1004 string by:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1005 - calling C{parseWithTabs} on your grammar before calling C{parseString}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1006 (see L{I{parseWithTabs}<parseWithTabs>})
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1007 - define your parse action using the full C{(s,loc,toks)} signature, and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1008 reference the input string using the parse action's C{s} argument
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1009 - explictly expand the tabs in your input string before calling
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1010 C{parseString}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1011 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1012 ParserElement.resetCache()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1013 if not self.streamlined:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1014 self.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1015 #~ self.saveAsList = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1016 for e in self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1017 e.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1018 if not self.keepTabs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1019 instring = instring.expandtabs()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1020 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1021 loc, tokens = self._parse( instring, 0 )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1022 if parseAll:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1023 loc = self.preParse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1024 se = Empty() + StringEnd()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1025 se._parse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1026 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1027 if ParserElement.verbose_stacktrace:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1028 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1029 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1030 # catch and re-raise exception from here, clears out pyparsing internal stack trace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1031 exc = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1032 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1033 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1034 return tokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1035
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1036 def scanString( self, instring, maxMatches=_MAX_INT, overlap=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1037 """Scan the input string for expression matches. Each match will return the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1038 matching tokens, start location, and end location. May be called with optional
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1039 C{maxMatches} argument, to clip scanning after 'n' matches are found. If
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1040 C{overlap} is specified, then overlapping matches will be reported.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1041
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1042 Note that the start and end locations are reported relative to the string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1043 being parsed. See L{I{parseString}<parseString>} for more information on parsing
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1044 strings with embedded tabs."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1045 if not self.streamlined:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1046 self.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1047 for e in self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1048 e.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1049
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1050 if not self.keepTabs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1051 instring = _ustr(instring).expandtabs()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1052 instrlen = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1053 loc = 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1054 preparseFn = self.preParse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1055 parseFn = self._parse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1056 ParserElement.resetCache()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1057 matches = 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1058 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1059 while loc <= instrlen and matches < maxMatches:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1060 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1061 preloc = preparseFn( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1062 nextLoc,tokens = parseFn( instring, preloc, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1063 except ParseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1064 loc = preloc+1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1065 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1066 if nextLoc > loc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1067 matches += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1068 yield tokens, preloc, nextLoc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1069 if overlap:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1070 nextloc = preparseFn( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1071 if nextloc > loc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1072 loc = nextLoc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1073 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1074 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1075 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1076 loc = nextLoc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1077 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1078 loc = preloc+1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1079 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1080 if ParserElement.verbose_stacktrace:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1081 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1082 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1083 # catch and re-raise exception from here, clears out pyparsing internal stack trace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1084 exc = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1085 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1086
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1087 def transformString( self, instring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1088 """Extension to C{scanString}, to modify matching text with modified tokens that may
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1089 be returned from a parse action. To use C{transformString}, define a grammar and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1090 attach a parse action to it that modifies the returned token list.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1091 Invoking C{transformString()} on a target string will then scan for matches,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1092 and replace the matched text patterns according to the logic in the parse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1093 action. C{transformString()} returns the resulting transformed string."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1094 out = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1095 lastE = 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1096 # force preservation of <TAB>s, to minimize unwanted transformation of string, and to
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1097 # keep string locs straight between transformString and scanString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1098 self.keepTabs = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1099 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1100 for t,s,e in self.scanString( instring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1101 out.append( instring[lastE:s] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1102 if t:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1103 if isinstance(t,ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1104 out += t.asList()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1105 elif isinstance(t,list):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1106 out += t
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1107 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1108 out.append(t)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1109 lastE = e
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1110 out.append(instring[lastE:])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1111 out = [o for o in out if o]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1112 return "".join(map(_ustr,_flatten(out)))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1113 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1114 if ParserElement.verbose_stacktrace:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1115 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1116 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1117 # catch and re-raise exception from here, clears out pyparsing internal stack trace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1118 exc = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1119 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1120
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1121 def searchString( self, instring, maxMatches=_MAX_INT ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1122 """Another extension to C{scanString}, simplifying the access to the tokens found
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1123 to match the given parse expression. May be called with optional
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1124 C{maxMatches} argument, to clip searching after 'n' matches are found.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1125 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1126 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1127 return ParseResults([ t for t,s,e in self.scanString( instring, maxMatches ) ])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1128 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1129 if ParserElement.verbose_stacktrace:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1130 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1131 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1132 # catch and re-raise exception from here, clears out pyparsing internal stack trace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1133 exc = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1134 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1135
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1136 def __add__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1137 """Implementation of + operator - returns And"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1138 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1139 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1140 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1141 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1142 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1143 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1144 return And( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1145
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1146 def __radd__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1147 """Implementation of + operator when left operand is not a C{ParserElement}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1148 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1149 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1150 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1151 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1152 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1153 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1154 return other + self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1155
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1156 def __sub__(self, other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1157 """Implementation of - operator, returns C{And} with error stop"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1158 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1159 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1160 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1161 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1162 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1163 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1164 return And( [ self, And._ErrorStop(), other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1165
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1166 def __rsub__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1167 """Implementation of - operator when left operand is not a C{ParserElement}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1168 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1169 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1170 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1171 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1172 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1173 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1174 return other - self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1175
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1176 def __mul__(self,other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1177 """Implementation of * operator, allows use of C{expr * 3} in place of
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1178 C{expr + expr + expr}. Expressions may also me multiplied by a 2-integer
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1179 tuple, similar to C{{min,max}} multipliers in regular expressions. Tuples
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1180 may also include C{None} as in:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1181 - C{expr(n,None)} or C{expr(n,)} is equivalent
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1182 to C{expr*n + ZeroOrMore(expr)}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1183 (read as "at least n instances of C{expr}")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1184 - C{expr(None,n)} is equivalent to C{expr(0,n)}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1185 (read as "0 to n instances of C{expr}")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1186 - C{expr*(None,None)} is equivalent to C{ZeroOrMore(expr)}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1187 - C{expr*(1,None)} is equivalent to C{OneOrMore(expr)}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1188
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1189 Note that C{expr*(None,n)} does not raise an exception if
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1190 more than n exprs exist in the input stream; that is,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1191 C{expr*(None,n)} does not enforce a maximum number of expr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1192 occurrences. If this behavior is desired, then write
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1193 C{expr*(None,n) + ~expr}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1194
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1195 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1196 if isinstance(other,int):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1197 minElements, optElements = other,0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1198 elif isinstance(other,tuple):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1199 other = (other + (None, None))[:2]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1200 if other[0] is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1201 other = (0, other[1])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1202 if isinstance(other[0],int) and other[1] is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1203 if other[0] == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1204 return ZeroOrMore(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1205 if other[0] == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1206 return OneOrMore(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1207 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1208 return self*other[0] + ZeroOrMore(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1209 elif isinstance(other[0],int) and isinstance(other[1],int):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1210 minElements, optElements = other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1211 optElements -= minElements
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1212 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1213 raise TypeError("cannot multiply 'ParserElement' and ('%s','%s') objects", type(other[0]),type(other[1]))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1214 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1215 raise TypeError("cannot multiply 'ParserElement' and '%s' objects", type(other))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1216
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1217 if minElements < 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1218 raise ValueError("cannot multiply ParserElement by negative value")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1219 if optElements < 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1220 raise ValueError("second tuple value must be greater or equal to first tuple value")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1221 if minElements == optElements == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1222 raise ValueError("cannot multiply ParserElement by 0 or (0,0)")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1223
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1224 if (optElements):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1225 def makeOptionalList(n):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1226 if n>1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1227 return Optional(self + makeOptionalList(n-1))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1228 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1229 return Optional(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1230 if minElements:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1231 if minElements == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1232 ret = self + makeOptionalList(optElements)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1233 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1234 ret = And([self]*minElements) + makeOptionalList(optElements)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1235 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1236 ret = makeOptionalList(optElements)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1237 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1238 if minElements == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1239 ret = self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1240 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1241 ret = And([self]*minElements)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1242 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1243
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1244 def __rmul__(self, other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1245 return self.__mul__(other)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1246
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1247 def __or__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1248 """Implementation of \| operator - returns C{MatchFirst}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1249 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1250 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1251 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1252 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1253 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1254 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1255 return MatchFirst( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1256
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1257 def __ror__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1258 """Implementation of \| operator when left operand is not a C{ParserElement}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1259 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1260 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1261 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1262 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1263 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1264 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1265 return other \| self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1266
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1267 def __xor__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1268 """Implementation of ^ operator - returns C{Or}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1269 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1270 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1271 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1272 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1273 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1274 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1275 return Or( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1276
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1277 def __rxor__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1278 """Implementation of ^ operator when left operand is not a C{ParserElement}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1279 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1280 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1281 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1282 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1283 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1284 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1285 return other ^ self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1286
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1287 def __and__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1288 """Implementation of & operator - returns C{Each}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1289 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1290 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1291 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1292 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1293 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1294 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1295 return Each( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1296
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1297 def __rand__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1298 """Implementation of & operator when left operand is not a C{ParserElement}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1299 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1300 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1301 if not isinstance( other, ParserElement ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1302 warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1303 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1304 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1305 return other & self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1306
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1307 def __invert__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1308 """Implementation of ~ operator - returns C{NotAny}"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1309 return NotAny( self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1310
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1311 def __call__(self, name):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1312 """Shortcut for C{setResultsName}, with C{listAllMatches=default}::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1313 userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1314 could be written as::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1315 userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1316
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1317 If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1318 passed as C{True}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1319 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1320 return self.setResultsName(name)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1321
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1322 def suppress( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1323 """Suppresses the output of this C{ParserElement}; useful to keep punctuation from
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1324 cluttering up returned output.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1325 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1326 return Suppress( self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1327
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1328 def leaveWhitespace( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1329 """Disables the skipping of whitespace before matching the characters in the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1330 C{ParserElement}'s defined pattern. This is normally only used internally by
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1331 the pyparsing module, but may be needed in some whitespace-sensitive grammars.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1332 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1333 self.skipWhitespace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1334 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1335
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1336 def setWhitespaceChars( self, chars ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1337 """Overrides the default whitespace chars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1338 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1339 self.skipWhitespace = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1340 self.whiteChars = chars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1341 self.copyDefaultWhiteChars = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1342 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1343
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1344 def parseWithTabs( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1345 """Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1346 Must be called before C{parseString} when the input grammar contains elements that
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1347 match C{<TAB>} characters."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1348 self.keepTabs = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1349 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1350
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1351 def ignore( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1352 """Define expression to be ignored (e.g., comments) while doing pattern
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1353 matching; may be called repeatedly, to define multiple comment or other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1354 ignorable patterns.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1355 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1356 if isinstance( other, Suppress ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1357 if other not in self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1358 self.ignoreExprs.append( other.copy() )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1359 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1360 self.ignoreExprs.append( Suppress( other.copy() ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1361 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1362
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1363 def setDebugActions( self, startAction, successAction, exceptionAction ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1364 """Enable display of debugging messages while doing pattern matching."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1365 self.debugActions = (startAction or _defaultStartDebugAction,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1366 successAction or _defaultSuccessDebugAction,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1367 exceptionAction or _defaultExceptionDebugAction)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1368 self.debug = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1369 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1370
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1371 def setDebug( self, flag=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1372 """Enable display of debugging messages while doing pattern matching.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1373 Set C{flag} to True to enable, False to disable."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1374 if flag:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1375 self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1376 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1377 self.debug = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1378 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1379
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1380 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1381 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1382
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1383 def __repr__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1384 return _ustr(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1385
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1386 def streamline( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1387 self.streamlined = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1388 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1389 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1390
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1391 def checkRecursion( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1392 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1393
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1394 def validate( self, validateTrace=[] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1395 """Check defined expressions for valid structure, check for infinite recursive definitions."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1396 self.checkRecursion( [] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1397
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1398 def parseFile( self, file_or_filename, parseAll=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1399 """Execute the parse expression on the given file or filename.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1400 If a filename is specified (instead of a file object),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1401 the entire file is opened, read, and closed before parsing.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1402 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1403 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1404 file_contents = file_or_filename.read()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1405 except AttributeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1406 f = open(file_or_filename, "rb")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1407 file_contents = f.read()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1408 f.close()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1409 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1410 return self.parseString(file_contents, parseAll)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1411 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1412 # catch and re-raise exception from here, clears out pyparsing internal stack trace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1413 exc = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1414 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1415
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1416 def getException(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1417 return ParseException("",0,self.errmsg,self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1418
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1419 def __getattr__(self,aname):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1420 if aname == "myException":
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1421 self.myException = ret = self.getException();
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1422 return ret;
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1423 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1424 raise AttributeError("no such attribute " + aname)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1425
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1426 def __eq__(self,other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1427 if isinstance(other, ParserElement):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1428 return self is other or self.__dict__ == other.__dict__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1429 elif isinstance(other, basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1430 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1431 self.parseString(_ustr(other), parseAll=True)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1432 return True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1433 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1434 return False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1435 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1436 return super(ParserElement,self)==other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1437
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1438 def __ne__(self,other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1439 return not (self == other)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1440
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1441 def __hash__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1442 return hash(id(self))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1443
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1444 def __req__(self,other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1445 return self == other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1446
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1447 def __rne__(self,other):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1448 return not (self == other)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1449
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1450
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1451 class Token(ParserElement):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1452 """Abstract C{ParserElement} subclass, for defining atomic matching patterns."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1453 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1454 super(Token,self).__init__( savelist=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1455
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1456 def setName(self, name):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1457 s = super(Token,self).setName(name)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1458 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1459 return s
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1460
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1461
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1462 class Empty(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1463 """An empty token, will always match."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1464 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1465 super(Empty,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1466 self.name = "Empty"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1467 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1468 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1469
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1470
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1471 class NoMatch(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1472 """A token that will never match."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1473 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1474 super(NoMatch,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1475 self.name = "NoMatch"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1476 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1477 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1478 self.errmsg = "Unmatchable token"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1479
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1480 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1481 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1482 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1483 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1484 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1485
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1486
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1487 class Literal(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1488 """Token to exactly match a specified string."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1489 def __init__( self, matchString ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1490 super(Literal,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1491 self.match = matchString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1492 self.matchLen = len(matchString)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1493 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1494 self.firstMatchChar = matchString[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1495 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1496 warnings.warn("null string passed to Literal; use Empty() instead",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1497 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1498 self.__class__ = Empty
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1499 self.name = '"%s"' % _ustr(self.match)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1500 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1501 self.mayReturnEmpty = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1502 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1503
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1504 # Performance tuning: this routine gets called a lot
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1505 # if this is a single character match string and the first character matches,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1506 # short-circuit as quickly as possible, and avoid calling startswith
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1507 #~ @profile
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1508 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1509 if (instring[loc] == self.firstMatchChar and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1510 (self.matchLen==1 or instring.startswith(self.match,loc)) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1511 return loc+self.matchLen, self.match
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1512 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1513 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1514 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1515 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1516 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1517 _L = Literal
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1518
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1519 class Keyword(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1520 """Token to exactly match a specified string as a keyword, that is, it must be
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1521 immediately followed by a non-keyword character. Compare with C{Literal}::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1522 Literal("if") will match the leading C{'if'} in C{'ifAndOnlyIf'}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1523 Keyword("if") will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1524 Accepts two optional constructor arguments in addition to the keyword string:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1525 C{identChars} is a string of characters that would be valid identifier characters,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1526 defaulting to all alphanumerics + "_" and "$"; C{caseless} allows case-insensitive
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1527 matching, default is C{False}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1528 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1529 DEFAULT_KEYWORD_CHARS = alphanums+"_$"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1530
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1531 def __init__( self, matchString, identChars=DEFAULT_KEYWORD_CHARS, caseless=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1532 super(Keyword,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1533 self.match = matchString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1534 self.matchLen = len(matchString)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1535 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1536 self.firstMatchChar = matchString[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1537 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1538 warnings.warn("null string passed to Keyword; use Empty() instead",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1539 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1540 self.name = '"%s"' % self.match
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1541 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1542 self.mayReturnEmpty = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1543 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1544 self.caseless = caseless
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1545 if caseless:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1546 self.caselessmatch = matchString.upper()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1547 identChars = identChars.upper()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1548 self.identChars = set(identChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1549
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1550 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1551 if self.caseless:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1552 if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1553 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1554 (loc == 0 or instring[loc-1].upper() not in self.identChars) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1555 return loc+self.matchLen, self.match
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1556 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1557 if (instring[loc] == self.firstMatchChar and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1558 (self.matchLen==1 or instring.startswith(self.match,loc)) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1559 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen] not in self.identChars) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1560 (loc == 0 or instring[loc-1] not in self.identChars) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1561 return loc+self.matchLen, self.match
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1562 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1563 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1564 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1565 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1566 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1567
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1568 def copy(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1569 c = super(Keyword,self).copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1570 c.identChars = Keyword.DEFAULT_KEYWORD_CHARS
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1571 return c
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1572
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1573 def setDefaultKeywordChars( chars ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1574 """Overrides the default Keyword chars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1575 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1576 Keyword.DEFAULT_KEYWORD_CHARS = chars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1577 setDefaultKeywordChars = staticmethod(setDefaultKeywordChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1578
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1579 class CaselessLiteral(Literal):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1580 """Token to match a specified string, ignoring case of letters.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1581 Note: the matched results will always be in the case of the given
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1582 match string, NOT the case of the input text.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1583 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1584 def __init__( self, matchString ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1585 super(CaselessLiteral,self).__init__( matchString.upper() )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1586 # Preserve the defining literal.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1587 self.returnString = matchString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1588 self.name = "'%s'" % self.returnString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1589 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1590
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1591 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1592 if instring[ loc:loc+self.matchLen ].upper() == self.match:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1593 return loc+self.matchLen, self.returnString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1594 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1595 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1596 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1597 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1598 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1599
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1600 class CaselessKeyword(Keyword):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1601 def __init__( self, matchString, identChars=Keyword.DEFAULT_KEYWORD_CHARS ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1602 super(CaselessKeyword,self).__init__( matchString, identChars, caseless=True )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1603
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1604 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1605 if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1606 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1607 return loc+self.matchLen, self.match
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1608 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1609 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1610 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1611 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1612 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1613
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1614 class Word(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1615 """Token for matching words composed of allowed character sets.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1616 Defined with string containing all allowed initial characters,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1617 an optional string containing allowed body characters (if omitted,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1618 defaults to the initial character set), and an optional minimum,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1619 maximum, and/or exact length. The default value for C{min} is 1 (a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1620 minimum value < 1 is not valid); the default values for C{max} and C{exact}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1621 are 0, meaning no maximum or exact length restriction. An optional
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1622 C{exclude} parameter can list characters that might be found in
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1623 the input C{bodyChars} string; useful to define a word of all printables
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1624 except for one or two characters, for instance.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1625 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1626 def __init__( self, initChars, bodyChars=None, min=1, max=0, exact=0, asKeyword=False, excludeChars=None ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1627 super(Word,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1628 if excludeChars:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1629 initChars = ''.join([c for c in initChars if c not in excludeChars])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1630 if bodyChars:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1631 bodyChars = ''.join([c for c in bodyChars if c not in excludeChars])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1632 self.initCharsOrig = initChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1633 self.initChars = set(initChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1634 if bodyChars :
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1635 self.bodyCharsOrig = bodyChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1636 self.bodyChars = set(bodyChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1637 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1638 self.bodyCharsOrig = initChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1639 self.bodyChars = set(initChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1640
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1641 self.maxSpecified = max > 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1642
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1643 if min < 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1644 raise ValueError("cannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permitted")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1645
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1646 self.minLen = min
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1647
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1648 if max > 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1649 self.maxLen = max
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1650 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1651 self.maxLen = _MAX_INT
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1652
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1653 if exact > 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1654 self.maxLen = exact
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1655 self.minLen = exact
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1656
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1657 self.name = _ustr(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1658 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1659 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1660 self.asKeyword = asKeyword
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1661
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1662 if ' ' not in self.initCharsOrig+self.bodyCharsOrig and (min==1 and max==0 and exact==0):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1663 if self.bodyCharsOrig == self.initCharsOrig:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1664 self.reString = "[%s]+" % _escapeRegexRangeChars(self.initCharsOrig)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1665 elif len(self.bodyCharsOrig) == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1666 self.reString = "%s[%s]*" % \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1667 (re.escape(self.initCharsOrig),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1668 _escapeRegexRangeChars(self.bodyCharsOrig),)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1669 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1670 self.reString = "[%s][%s]*" % \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1671 (_escapeRegexRangeChars(self.initCharsOrig),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1672 _escapeRegexRangeChars(self.bodyCharsOrig),)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1673 if self.asKeyword:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1674 self.reString = r"\b"+self.reString+r"\b"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1675 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1676 self.re = re.compile( self.reString )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1677 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1678 self.re = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1679
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1680 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1681 if self.re:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1682 result = self.re.match(instring,loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1683 if not result:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1684 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1685 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1686 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1687 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1688
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1689 loc = result.end()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1690 return loc, result.group()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1691
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1692 if not(instring[ loc ] in self.initChars):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1693 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1694 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1695 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1696 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1697 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1698 start = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1699 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1700 instrlen = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1701 bodychars = self.bodyChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1702 maxloc = start + self.maxLen
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1703 maxloc = min( maxloc, instrlen )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1704 while loc < maxloc and instring[loc] in bodychars:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1705 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1706
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1707 throwException = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1708 if loc - start < self.minLen:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1709 throwException = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1710 if self.maxSpecified and loc < instrlen and instring[loc] in bodychars:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1711 throwException = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1712 if self.asKeyword:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1713 if (start>0 and instring[start-1] in bodychars) or (loc<instrlen and instring[loc] in bodychars):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1714 throwException = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1715
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1716 if throwException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1717 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1718 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1719 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1720 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1721 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1722
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1723 return loc, instring[start:loc]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1724
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1725 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1726 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1727 return super(Word,self).__str__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1728 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1729 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1730
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1731
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1732 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1733
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1734 def charsAsStr(s):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1735 if len(s)>4:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1736 return s[:4]+"..."
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1737 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1738 return s
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1739
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1740 if ( self.initCharsOrig != self.bodyCharsOrig ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1741 self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1742 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1743 self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1744
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1745 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1746
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1747
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1748 class Regex(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1749 """Token for matching strings that match a given regular expression.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1750 Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1751 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1752 compiledREtype = type(re.compile("[A-Z]"))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1753 def __init__( self, pattern, flags=0):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1754 """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1755 super(Regex,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1756
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1757 if isinstance(pattern, basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1758 if len(pattern) == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1759 warnings.warn("null string passed to Regex; use Empty() instead",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1760 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1761
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1762 self.pattern = pattern
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1763 self.flags = flags
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1764
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1765 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1766 self.re = re.compile(self.pattern, self.flags)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1767 self.reString = self.pattern
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1768 except sre_constants.error:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1769 warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1770 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1771 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1772
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1773 elif isinstance(pattern, Regex.compiledREtype):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1774 self.re = pattern
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1775 self.pattern = \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1776 self.reString = str(pattern)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1777 self.flags = flags
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1778
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1779 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1780 raise ValueError("Regex may only be constructed with a string or a compiled RE object")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1781
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1782 self.name = _ustr(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1783 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1784 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1785 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1786
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1787 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1788 result = self.re.match(instring,loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1789 if not result:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1790 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1791 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1792 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1793 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1794
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1795 loc = result.end()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1796 d = result.groupdict()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1797 ret = ParseResults(result.group())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1798 if d:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1799 for k in d:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1800 ret[k] = d[k]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1801 return loc,ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1802
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1803 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1804 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1805 return super(Regex,self).__str__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1806 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1807 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1808
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1809 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1810 self.strRepr = "Re:(%s)" % repr(self.pattern)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1811
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1812 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1813
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1814
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1815 class QuotedString(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1816 """Token for matching strings that are delimited by quoting characters.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1817 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1818 def __init__( self, quoteChar, escChar=None, escQuote=None, multiline=False, unquoteResults=True, endQuoteChar=None):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1819 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1820 Defined with the following parameters:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1821 - quoteChar - string of one or more characters defining the quote delimiting string
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1822 - escChar - character to escape quotes, typically backslash (default=None)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1823 - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=None)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1824 - multiline - boolean indicating whether quotes can span multiple lines (default=False)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1825 - unquoteResults - boolean indicating whether the matched text should be unquoted (default=True)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1826 - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=None => same as quoteChar)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1827 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1828 super(QuotedString,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1829
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1830 # remove white space from quote chars - wont work anyway
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1831 quoteChar = quoteChar.strip()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1832 if len(quoteChar) == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1833 warnings.warn("quoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1834 raise SyntaxError()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1835
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1836 if endQuoteChar is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1837 endQuoteChar = quoteChar
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1838 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1839 endQuoteChar = endQuoteChar.strip()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1840 if len(endQuoteChar) == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1841 warnings.warn("endQuoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1842 raise SyntaxError()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1843
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1844 self.quoteChar = quoteChar
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1845 self.quoteCharLen = len(quoteChar)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1846 self.firstQuoteChar = quoteChar[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1847 self.endQuoteChar = endQuoteChar
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1848 self.endQuoteCharLen = len(endQuoteChar)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1849 self.escChar = escChar
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1850 self.escQuote = escQuote
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1851 self.unquoteResults = unquoteResults
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1852
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1853 if multiline:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1854 self.flags = re.MULTILINE \| re.DOTALL
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1855 self.pattern = r'%s(?:[^%s%s]' % \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1856 ( re.escape(self.quoteChar),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1857 _escapeRegexRangeChars(self.endQuoteChar[0]),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1858 (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1859 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1860 self.flags = 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1861 self.pattern = r'%s(?:[^%s\n\r%s]' % \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1862 ( re.escape(self.quoteChar),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1863 _escapeRegexRangeChars(self.endQuoteChar[0]),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1864 (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1865 if len(self.endQuoteChar) > 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1866 self.pattern += (
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1867 '\|(?:' + ')\|(?:'.join(["%s[^%s]" % (re.escape(self.endQuoteChar[:i]),
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1868 _escapeRegexRangeChars(self.endQuoteChar[i]))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1869 for i in range(len(self.endQuoteChar)-1,0,-1)]) + ')'
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1870 )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1871 if escQuote:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1872 self.pattern += (r'\|(?:%s)' % re.escape(escQuote))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1873 if escChar:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1874 self.pattern += (r'\|(?:%s.)' % re.escape(escChar))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1875 charset = ''.join(set(self.quoteChar[0]+self.endQuoteChar[0])).replace('^',r'\^').replace('-',r'\-')
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1876 self.escCharReplacePattern = re.escape(self.escChar)+("([%s])" % charset)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1877 self.pattern += (r')*%s' % re.escape(self.endQuoteChar))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1878
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1879 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1880 self.re = re.compile(self.pattern, self.flags)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1881 self.reString = self.pattern
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1882 except sre_constants.error:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1883 warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1884 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1885 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1886
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1887 self.name = _ustr(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1888 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1889 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1890 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1891
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1892 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1893 result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1894 if not result:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1895 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1896 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1897 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1898 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1899
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1900 loc = result.end()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1901 ret = result.group()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1902
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1903 if self.unquoteResults:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1904
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1905 # strip off quotes
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1906 ret = ret[self.quoteCharLen:-self.endQuoteCharLen]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1907
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1908 if isinstance(ret,basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1909 # replace escaped characters
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1910 if self.escChar:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1911 ret = re.sub(self.escCharReplacePattern,"\g<1>",ret)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1912
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1913 # replace escaped quotes
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1914 if self.escQuote:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1915 ret = ret.replace(self.escQuote, self.endQuoteChar)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1916
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1917 return loc, ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1918
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1919 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1920 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1921 return super(QuotedString,self).__str__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1922 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1923 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1924
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1925 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1926 self.strRepr = "quoted string, starting with %s ending with %s" % (self.quoteChar, self.endQuoteChar)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1927
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1928 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1929
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1930
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1931 class CharsNotIn(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1932 """Token for matching words composed of characters not in a given set.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1933 Defined with string containing all disallowed characters, and an optional
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1934 minimum, maximum, and/or exact length. The default value for C{min} is 1 (a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1935 minimum value < 1 is not valid); the default values for C{max} and C{exact}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1936 are 0, meaning no maximum or exact length restriction.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1937 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1938 def __init__( self, notChars, min=1, max=0, exact=0 ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1939 super(CharsNotIn,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1940 self.skipWhitespace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1941 self.notChars = notChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1942
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1943 if min < 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1944 raise ValueError("cannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1945
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1946 self.minLen = min
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1947
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1948 if max > 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1949 self.maxLen = max
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1950 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1951 self.maxLen = _MAX_INT
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1952
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1953 if exact > 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1954 self.maxLen = exact
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1955 self.minLen = exact
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1956
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1957 self.name = _ustr(self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1958 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1959 self.mayReturnEmpty = ( self.minLen == 0 )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1960 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1961
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1962 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1963 if instring[loc] in self.notChars:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1964 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1965 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1966 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1967 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1968 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1969
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1970 start = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1971 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1972 notchars = self.notChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1973 maxlen = min( start+self.maxLen, len(instring) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1974 while loc < maxlen and \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1975 (instring[loc] not in notchars):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1976 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1977
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1978 if loc - start < self.minLen:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1979 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1980 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1981 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1982 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1983 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1984
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1985 return loc, instring[start:loc]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1986
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1987 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1988 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1989 return super(CharsNotIn, self).__str__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1990 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1991 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1992
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1993 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1994 if len(self.notChars) > 4:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1995 self.strRepr = "!W:(%s...)" % self.notChars[:4]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1996 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1997 self.strRepr = "!W:(%s)" % self.notChars
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1998
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	1999 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2000
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2001 class White(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2002 """Special matching class for matching whitespace. Normally, whitespace is ignored
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2003 by pyparsing grammars. This class is included when some whitespace structures
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2004 are significant. Define with a string containing the whitespace characters to be
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2005 matched; default is C{" \\t\\r\\n"}. Also takes optional C{min}, C{max}, and C{exact} arguments,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2006 as defined for the C{Word} class."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2007 whiteStrs = {
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2008 " " : "<SPC>",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2009 "\t": "<TAB>",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2010 "\n": "<LF>",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2011 "\r": "<CR>",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2012 "\f": "<FF>",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2013 }
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2014 def __init__(self, ws=" \t\r\n", min=1, max=0, exact=0):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2015 super(White,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2016 self.matchWhite = ws
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2017 self.setWhitespaceChars( "".join([c for c in self.whiteChars if c not in self.matchWhite]) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2018 #~ self.leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2019 self.name = ("".join([White.whiteStrs[c] for c in self.matchWhite]))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2020 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2021 self.errmsg = "Expected " + self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2022
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2023 self.minLen = min
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2024
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2025 if max > 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2026 self.maxLen = max
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2027 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2028 self.maxLen = _MAX_INT
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2029
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2030 if exact > 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2031 self.maxLen = exact
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2032 self.minLen = exact
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2033
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2034 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2035 if not(instring[ loc ] in self.matchWhite):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2036 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2037 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2038 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2039 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2040 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2041 start = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2042 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2043 maxloc = start + self.maxLen
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2044 maxloc = min( maxloc, len(instring) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2045 while loc < maxloc and instring[loc] in self.matchWhite:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2046 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2047
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2048 if loc - start < self.minLen:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2049 #~ raise ParseException( instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2050 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2051 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2052 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2053 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2054
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2055 return loc, instring[start:loc]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2056
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2057
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2058 class _PositionToken(Token):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2059 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2060 super(_PositionToken,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2061 self.name=self.__class__.__name__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2062 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2063 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2064
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2065 class GoToColumn(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2066 """Token to advance to a specific column of input text; useful for tabular report scraping."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2067 def __init__( self, colno ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2068 super(GoToColumn,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2069 self.col = colno
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2070
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2071 def preParse( self, instring, loc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2072 if col(loc,instring) != self.col:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2073 instrlen = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2074 if self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2075 loc = self._skipIgnorables( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2076 while loc < instrlen and instring[loc].isspace() and col( loc, instring ) != self.col :
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2077 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2078 return loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2079
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2080 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2081 thiscol = col( loc, instring )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2082 if thiscol > self.col:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2083 raise ParseException( instring, loc, "Text not in expected column", self )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2084 newloc = loc + self.col - thiscol
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2085 ret = instring[ loc: newloc ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2086 return newloc, ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2087
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2088 class LineStart(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2089 """Matches if current position is at the beginning of a line within the parse string"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2090 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2091 super(LineStart,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2092 self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2093 self.errmsg = "Expected start of line"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2094
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2095 def preParse( self, instring, loc ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2096 preloc = super(LineStart,self).preParse(instring,loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2097 if instring[preloc] == "\n":
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2098 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2099 return loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2100
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2101 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2102 if not( loc==0 or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2103 (loc == self.preParse( instring, 0 )) or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2104 (instring[loc-1] == "\n") ): #col(loc, instring) != 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2105 #~ raise ParseException( instring, loc, "Expected start of line" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2106 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2107 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2108 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2109 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2110 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2111
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2112 class LineEnd(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2113 """Matches if current position is at the end of a line within the parse string"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2114 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2115 super(LineEnd,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2116 self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2117 self.errmsg = "Expected end of line"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2118
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2119 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2120 if loc<len(instring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2121 if instring[loc] == "\n":
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2122 return loc+1, "\n"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2123 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2124 #~ raise ParseException( instring, loc, "Expected end of line" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2125 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2126 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2127 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2128 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2129 elif loc == len(instring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2130 return loc+1, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2131 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2132 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2133 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2134 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2135 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2136
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2137 class StringStart(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2138 """Matches if current position is at the beginning of the parse string"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2139 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2140 super(StringStart,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2141 self.errmsg = "Expected start of text"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2142
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2143 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2144 if loc != 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2145 # see if entire string up to here is just whitespace and ignoreables
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2146 if loc != self.preParse( instring, 0 ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2147 #~ raise ParseException( instring, loc, "Expected start of text" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2148 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2149 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2150 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2151 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2152 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2153
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2154 class StringEnd(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2155 """Matches if current position is at the end of the parse string"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2156 def __init__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2157 super(StringEnd,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2158 self.errmsg = "Expected end of text"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2159
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2160 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2161 if loc < len(instring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2162 #~ raise ParseException( instring, loc, "Expected end of text" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2163 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2164 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2165 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2166 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2167 elif loc == len(instring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2168 return loc+1, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2169 elif loc > len(instring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2170 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2171 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2172 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2173 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2174 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2175 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2176
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2177 class WordStart(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2178 """Matches if the current position is at the beginning of a Word, and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2179 is not preceded by any character in a given set of C{wordChars}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2180 (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2181 use C{WordStart(alphanums)}. C{WordStart} will also match at the beginning of
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2182 the string being parsed, or at the beginning of a line.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2183 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2184 def __init__(self, wordChars = printables):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2185 super(WordStart,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2186 self.wordChars = set(wordChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2187 self.errmsg = "Not at the start of a word"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2188
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2189 def parseImpl(self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2190 if loc != 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2191 if (instring[loc-1] in self.wordChars or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2192 instring[loc] not in self.wordChars):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2193 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2194 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2195 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2196 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2197 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2198
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2199 class WordEnd(_PositionToken):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2200 """Matches if the current position is at the end of a Word, and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2201 is not followed by any character in a given set of C{wordChars}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2202 (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2203 use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2204 the string being parsed, or at the end of a line.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2205 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2206 def __init__(self, wordChars = printables):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2207 super(WordEnd,self).__init__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2208 self.wordChars = set(wordChars)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2209 self.skipWhitespace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2210 self.errmsg = "Not at the end of a word"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2211
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2212 def parseImpl(self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2213 instrlen = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2214 if instrlen>0 and loc<instrlen:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2215 if (instring[loc] in self.wordChars or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2216 instring[loc-1] not in self.wordChars):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2217 #~ raise ParseException( instring, loc, "Expected end of word" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2218 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2219 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2220 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2221 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2222 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2223
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2224
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2225 class ParseExpression(ParserElement):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2226 """Abstract subclass of ParserElement, for combining and post-processing parsed tokens."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2227 def __init__( self, exprs, savelist = False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2228 super(ParseExpression,self).__init__(savelist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2229 if isinstance( exprs, list ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2230 self.exprs = exprs
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2231 elif isinstance( exprs, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2232 self.exprs = [ Literal( exprs ) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2233 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2234 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2235 self.exprs = list( exprs )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2236 except TypeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2237 self.exprs = [ exprs ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2238 self.callPreparse = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2239
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2240 def __getitem__( self, i ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2241 return self.exprs[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2242
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2243 def append( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2244 self.exprs.append( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2245 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2246 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2247
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2248 def leaveWhitespace( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2249 """Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2250 all contained expressions."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2251 self.skipWhitespace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2252 self.exprs = [ e.copy() for e in self.exprs ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2253 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2254 e.leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2255 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2256
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2257 def ignore( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2258 if isinstance( other, Suppress ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2259 if other not in self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2260 super( ParseExpression, self).ignore( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2261 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2262 e.ignore( self.ignoreExprs[-1] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2263 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2264 super( ParseExpression, self).ignore( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2265 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2266 e.ignore( self.ignoreExprs[-1] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2267 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2268
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2269 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2270 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2271 return super(ParseExpression,self).__str__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2272 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2273 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2274
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2275 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2276 self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.exprs) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2277 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2278
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2279 def streamline( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2280 super(ParseExpression,self).streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2281
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2282 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2283 e.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2284
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2285 # collapse nested And's of the form And( And( And( a,b), c), d) to And( a,b,c,d )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2286 # but only if there are no parse actions or resultsNames on the nested And's
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2287 # (likewise for Or's and MatchFirst's)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2288 if ( len(self.exprs) == 2 ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2289 other = self.exprs[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2290 if ( isinstance( other, self.__class__ ) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2291 not(other.parseAction) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2292 other.resultsName is None and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2293 not other.debug ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2294 self.exprs = other.exprs[:] + [ self.exprs[1] ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2295 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2296 self.mayReturnEmpty \|= other.mayReturnEmpty
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2297 self.mayIndexError \|= other.mayIndexError
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2298
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2299 other = self.exprs[-1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2300 if ( isinstance( other, self.__class__ ) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2301 not(other.parseAction) and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2302 other.resultsName is None and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2303 not other.debug ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2304 self.exprs = self.exprs[:-1] + other.exprs[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2305 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2306 self.mayReturnEmpty \|= other.mayReturnEmpty
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2307 self.mayIndexError \|= other.mayIndexError
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2308
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2309 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2310
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2311 def setResultsName( self, name, listAllMatches=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2312 ret = super(ParseExpression,self).setResultsName(name,listAllMatches)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2313 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2314
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2315 def validate( self, validateTrace=[] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2316 tmp = validateTrace[:]+[self]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2317 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2318 e.validate(tmp)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2319 self.checkRecursion( [] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2320
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2321 def copy(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2322 ret = super(ParseExpression,self).copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2323 ret.exprs = [e.copy() for e in self.exprs]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2324 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2325
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2326 class And(ParseExpression):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2327 """Requires all given C{ParseExpression}s to be found in the given order.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2328 Expressions may be separated by whitespace.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2329 May be constructed using the C{'+'} operator.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2330 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2331
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2332 class _ErrorStop(Empty):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2333 def __init__(self, args, *kwargs):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2334 super(Empty,self).__init__(args, *kwargs)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2335 self.leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2336
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2337 def __init__( self, exprs, savelist = True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2338 super(And,self).__init__(exprs, savelist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2339 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2340 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2341 if not e.mayReturnEmpty:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2342 self.mayReturnEmpty = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2343 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2344 self.setWhitespaceChars( exprs[0].whiteChars )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2345 self.skipWhitespace = exprs[0].skipWhitespace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2346 self.callPreparse = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2347
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2348 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2349 # pass False as last arg to _parse for first element, since we already
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2350 # pre-parsed the string as part of our And pre-parsing
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2351 loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2352 errorStop = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2353 for e in self.exprs[1:]:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2354 if isinstance(e, And._ErrorStop):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2355 errorStop = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2356 continue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2357 if errorStop:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2358 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2359 loc, exprtokens = e._parse( instring, loc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2360 except ParseSyntaxException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2361 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2362 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2363 pe = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2364 raise ParseSyntaxException(pe)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2365 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2366 raise ParseSyntaxException( ParseException(instring, len(instring), self.errmsg, self) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2367 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2368 loc, exprtokens = e._parse( instring, loc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2369 if exprtokens or exprtokens.keys():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2370 resultlist += exprtokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2371 return loc, resultlist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2372
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2373 def __iadd__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2374 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2375 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2376 return self.append( other ) #And( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2377
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2378 def checkRecursion( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2379 subRecCheckList = parseElementList[:] + [ self ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2380 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2381 e.checkRecursion( subRecCheckList )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2382 if not e.mayReturnEmpty:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2383 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2384
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2385 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2386 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2387 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2388
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2389 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2390 self.strRepr = "{" + " ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2391
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2392 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2393
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2394
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2395 class Or(ParseExpression):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2396 """Requires that at least one C{ParseExpression} is found.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2397 If two expressions match, the expression that matches the longest string will be used.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2398 May be constructed using the C{'^'} operator.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2399 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2400 def __init__( self, exprs, savelist = False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2401 super(Or,self).__init__(exprs, savelist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2402 self.mayReturnEmpty = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2403 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2404 if e.mayReturnEmpty:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2405 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2406 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2407
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2408 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2409 maxExcLoc = -1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2410 maxMatchLoc = -1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2411 maxException = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2412 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2413 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2414 loc2 = e.tryParse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2415 except ParseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2416 err = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2417 if err.loc > maxExcLoc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2418 maxException = err
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2419 maxExcLoc = err.loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2420 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2421 if len(instring) > maxExcLoc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2422 maxException = ParseException(instring,len(instring),e.errmsg,self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2423 maxExcLoc = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2424 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2425 if loc2 > maxMatchLoc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2426 maxMatchLoc = loc2
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2427 maxMatchExp = e
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2428
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2429 if maxMatchLoc < 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2430 if maxException is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2431 raise maxException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2432 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2433 raise ParseException(instring, loc, "no defined alternatives to match", self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2434
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2435 return maxMatchExp._parse( instring, loc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2436
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2437 def __ixor__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2438 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2439 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2440 return self.append( other ) #Or( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2441
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2442 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2443 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2444 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2445
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2446 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2447 self.strRepr = "{" + " ^ ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2448
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2449 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2450
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2451 def checkRecursion( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2452 subRecCheckList = parseElementList[:] + [ self ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2453 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2454 e.checkRecursion( subRecCheckList )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2455
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2456
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2457 class MatchFirst(ParseExpression):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2458 """Requires that at least one C{ParseExpression} is found.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2459 If two expressions match, the first one listed is the one that will match.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2460 May be constructed using the C{'\|'} operator.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2461 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2462 def __init__( self, exprs, savelist = False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2463 super(MatchFirst,self).__init__(exprs, savelist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2464 if exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2465 self.mayReturnEmpty = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2466 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2467 if e.mayReturnEmpty:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2468 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2469 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2470 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2471 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2472
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2473 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2474 maxExcLoc = -1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2475 maxException = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2476 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2477 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2478 ret = e._parse( instring, loc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2479 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2480 except ParseException, err:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2481 if err.loc > maxExcLoc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2482 maxException = err
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2483 maxExcLoc = err.loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2484 except IndexError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2485 if len(instring) > maxExcLoc:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2486 maxException = ParseException(instring,len(instring),e.errmsg,self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2487 maxExcLoc = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2488
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2489 # only got here if no expression matched, raise exception for match that made it the furthest
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2490 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2491 if maxException is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2492 raise maxException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2493 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2494 raise ParseException(instring, loc, "no defined alternatives to match", self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2495
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2496 def __ior__(self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2497 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2498 other = Literal( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2499 return self.append( other ) #MatchFirst( [ self, other ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2500
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2501 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2502 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2503 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2504
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2505 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2506 self.strRepr = "{" + " \| ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2507
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2508 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2509
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2510 def checkRecursion( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2511 subRecCheckList = parseElementList[:] + [ self ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2512 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2513 e.checkRecursion( subRecCheckList )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2514
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2515
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2516 class Each(ParseExpression):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2517 """Requires all given C{ParseExpression}s to be found, but in any order.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2518 Expressions may be separated by whitespace.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2519 May be constructed using the C{'&'} operator.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2520 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2521 def __init__( self, exprs, savelist = True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2522 super(Each,self).__init__(exprs, savelist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2523 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2524 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2525 if not e.mayReturnEmpty:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2526 self.mayReturnEmpty = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2527 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2528 self.skipWhitespace = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2529 self.initExprGroups = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2530
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2531 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2532 if self.initExprGroups:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2533 opt1 = [ e.expr for e in self.exprs if isinstance(e,Optional) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2534 opt2 = [ e for e in self.exprs if e.mayReturnEmpty and e not in opt1 ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2535 self.optionals = opt1 + opt2
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2536 self.multioptionals = [ e.expr for e in self.exprs if isinstance(e,ZeroOrMore) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2537 self.multirequired = [ e.expr for e in self.exprs if isinstance(e,OneOrMore) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2538 self.required = [ e for e in self.exprs if not isinstance(e,(Optional,ZeroOrMore,OneOrMore)) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2539 self.required += self.multirequired
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2540 self.initExprGroups = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2541 tmpLoc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2542 tmpReqd = self.required[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2543 tmpOpt = self.optionals[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2544 matchOrder = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2545
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2546 keepMatching = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2547 while keepMatching:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2548 tmpExprs = tmpReqd + tmpOpt + self.multioptionals + self.multirequired
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2549 failed = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2550 for e in tmpExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2551 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2552 tmpLoc = e.tryParse( instring, tmpLoc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2553 except ParseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2554 failed.append(e)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2555 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2556 matchOrder.append(e)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2557 if e in tmpReqd:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2558 tmpReqd.remove(e)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2559 elif e in tmpOpt:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2560 tmpOpt.remove(e)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2561 if len(failed) == len(tmpExprs):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2562 keepMatching = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2563
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2564 if tmpReqd:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2565 missing = ", ".join( [ _ustr(e) for e in tmpReqd ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2566 raise ParseException(instring,loc,"Missing one or more required elements (%s)" % missing )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2567
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2568 # add any unmatched Optionals, in case they have default values defined
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2569 matchOrder += [e for e in self.exprs if isinstance(e,Optional) and e.expr in tmpOpt]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2570
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2571 resultlist = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2572 for e in matchOrder:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2573 loc,results = e._parse(instring,loc,doActions)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2574 resultlist.append(results)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2575
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2576 finalResults = ParseResults([])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2577 for r in resultlist:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2578 dups = {}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2579 for k in r.keys():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2580 if k in finalResults.keys():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2581 tmp = ParseResults(finalResults[k])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2582 tmp += ParseResults(r[k])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2583 dups[k] = tmp
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2584 finalResults += ParseResults(r)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2585 for k,v in dups.items():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2586 finalResults[k] = v
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2587 return loc, finalResults
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2588
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2589 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2590 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2591 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2592
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2593 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2594 self.strRepr = "{" + " & ".join( [ _ustr(e) for e in self.exprs ] ) + "}"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2595
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2596 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2597
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2598 def checkRecursion( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2599 subRecCheckList = parseElementList[:] + [ self ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2600 for e in self.exprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2601 e.checkRecursion( subRecCheckList )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2602
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2603
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2604 class ParseElementEnhance(ParserElement):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2605 """Abstract subclass of C{ParserElement}, for combining and post-processing parsed tokens."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2606 def __init__( self, expr, savelist=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2607 super(ParseElementEnhance,self).__init__(savelist)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2608 if isinstance( expr, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2609 expr = Literal(expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2610 self.expr = expr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2611 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2612 if expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2613 self.mayIndexError = expr.mayIndexError
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2614 self.mayReturnEmpty = expr.mayReturnEmpty
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2615 self.setWhitespaceChars( expr.whiteChars )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2616 self.skipWhitespace = expr.skipWhitespace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2617 self.saveAsList = expr.saveAsList
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2618 self.callPreparse = expr.callPreparse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2619 self.ignoreExprs.extend(expr.ignoreExprs)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2620
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2621 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2622 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2623 return self.expr._parse( instring, loc, doActions, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2624 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2625 raise ParseException("",loc,self.errmsg,self)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2626
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2627 def leaveWhitespace( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2628 self.skipWhitespace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2629 self.expr = self.expr.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2630 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2631 self.expr.leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2632 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2633
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2634 def ignore( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2635 if isinstance( other, Suppress ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2636 if other not in self.ignoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2637 super( ParseElementEnhance, self).ignore( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2638 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2639 self.expr.ignore( self.ignoreExprs[-1] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2640 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2641 super( ParseElementEnhance, self).ignore( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2642 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2643 self.expr.ignore( self.ignoreExprs[-1] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2644 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2645
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2646 def streamline( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2647 super(ParseElementEnhance,self).streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2648 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2649 self.expr.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2650 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2651
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2652 def checkRecursion( self, parseElementList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2653 if self in parseElementList:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2654 raise RecursiveGrammarException( parseElementList+[self] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2655 subRecCheckList = parseElementList[:] + [ self ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2656 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2657 self.expr.checkRecursion( subRecCheckList )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2658
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2659 def validate( self, validateTrace=[] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2660 tmp = validateTrace[:]+[self]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2661 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2662 self.expr.validate(tmp)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2663 self.checkRecursion( [] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2664
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2665 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2666 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2667 return super(ParseElementEnhance,self).__str__()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2668 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2669 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2670
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2671 if self.strRepr is None and self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2672 self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.expr) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2673 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2674
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2675
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2676 class FollowedBy(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2677 """Lookahead matching of the given parse expression. C{FollowedBy}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2678 does not advance the parsing position within the input string, it only
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2679 verifies that the specified parse expression matches at the current
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2680 position. C{FollowedBy} always returns a null token list."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2681 def __init__( self, expr ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2682 super(FollowedBy,self).__init__(expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2683 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2684
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2685 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2686 self.expr.tryParse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2687 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2688
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2689
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2690 class NotAny(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2691 """Lookahead to disallow matching with the given parse expression. C{NotAny}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2692 does not advance the parsing position within the input string, it only
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2693 verifies that the specified parse expression does not match at the current
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2694 position. Also, C{NotAny} does not skip over leading whitespace. C{NotAny}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2695 always returns a null token list. May be constructed using the '~' operator."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2696 def __init__( self, expr ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2697 super(NotAny,self).__init__(expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2698 #~ self.leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2699 self.skipWhitespace = False # do NOT use self.leaveWhitespace(), don't want to propagate to exprs
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2700 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2701 self.errmsg = "Found unwanted token, "+_ustr(self.expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2702
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2703 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2704 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2705 self.expr.tryParse( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2706 except (ParseException,IndexError):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2707 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2708 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2709 #~ raise ParseException(instring, loc, self.errmsg )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2710 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2711 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2712 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2713 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2714 return loc, []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2715
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2716 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2717 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2718 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2719
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2720 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2721 self.strRepr = "~{" + _ustr(self.expr) + "}"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2722
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2723 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2724
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2725
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2726 class ZeroOrMore(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2727 """Optional repetition of zero or more of the given expression."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2728 def __init__( self, expr ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2729 super(ZeroOrMore,self).__init__(expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2730 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2731
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2732 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2733 tokens = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2734 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2735 loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2736 hasIgnoreExprs = ( len(self.ignoreExprs) > 0 )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2737 while 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2738 if hasIgnoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2739 preloc = self._skipIgnorables( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2740 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2741 preloc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2742 loc, tmptokens = self.expr._parse( instring, preloc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2743 if tmptokens or tmptokens.keys():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2744 tokens += tmptokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2745 except (ParseException,IndexError):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2746 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2747
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2748 return loc, tokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2749
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2750 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2751 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2752 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2753
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2754 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2755 self.strRepr = "[" + _ustr(self.expr) + "]..."
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2756
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2757 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2758
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2759 def setResultsName( self, name, listAllMatches=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2760 ret = super(ZeroOrMore,self).setResultsName(name,listAllMatches)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2761 ret.saveAsList = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2762 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2763
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2764
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2765 class OneOrMore(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2766 """Repetition of one or more of the given expression."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2767 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2768 # must be at least one
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2769 loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2770 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2771 hasIgnoreExprs = ( len(self.ignoreExprs) > 0 )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2772 while 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2773 if hasIgnoreExprs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2774 preloc = self._skipIgnorables( instring, loc )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2775 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2776 preloc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2777 loc, tmptokens = self.expr._parse( instring, preloc, doActions )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2778 if tmptokens or tmptokens.keys():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2779 tokens += tmptokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2780 except (ParseException,IndexError):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2781 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2782
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2783 return loc, tokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2784
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2785 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2786 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2787 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2788
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2789 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2790 self.strRepr = "{" + _ustr(self.expr) + "}..."
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2791
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2792 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2793
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2794 def setResultsName( self, name, listAllMatches=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2795 ret = super(OneOrMore,self).setResultsName(name,listAllMatches)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2796 ret.saveAsList = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2797 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2798
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2799 class _NullToken(object):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2800 def __bool__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2801 return False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2802 __nonzero__ = __bool__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2803 def __str__(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2804 return ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2805
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2806 _optionalNotMatched = _NullToken()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2807 class Optional(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2808 """Optional matching of the given expression.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2809 A default return string can also be specified, if the optional expression
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2810 is not found.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2811 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2812 def __init__( self, exprs, default=_optionalNotMatched ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2813 super(Optional,self).__init__( exprs, savelist=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2814 self.defaultValue = default
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2815 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2816
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2817 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2818 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2819 loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2820 except (ParseException,IndexError):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2821 if self.defaultValue is not _optionalNotMatched:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2822 if self.expr.resultsName:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2823 tokens = ParseResults([ self.defaultValue ])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2824 tokens[self.expr.resultsName] = self.defaultValue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2825 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2826 tokens = [ self.defaultValue ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2827 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2828 tokens = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2829 return loc, tokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2830
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2831 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2832 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2833 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2834
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2835 if self.strRepr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2836 self.strRepr = "[" + _ustr(self.expr) + "]"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2837
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2838 return self.strRepr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2839
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2840
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2841 class SkipTo(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2842 """Token for skipping over all undefined text until the matched expression is found.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2843 If C{include} is set to true, the matched expression is also parsed (the skipped text
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2844 and matched expression are returned as a 2-element list). The C{ignore}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2845 argument is used to define grammars (typically quoted strings and comments) that
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2846 might contain false matches.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2847 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2848 def __init__( self, other, include=False, ignore=None, failOn=None ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2849 super( SkipTo, self ).__init__( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2850 self.ignoreExpr = ignore
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2851 self.mayReturnEmpty = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2852 self.mayIndexError = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2853 self.includeMatch = include
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2854 self.asList = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2855 if failOn is not None and isinstance(failOn, basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2856 self.failOn = Literal(failOn)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2857 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2858 self.failOn = failOn
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2859 self.errmsg = "No match found for "+_ustr(self.expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2860
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2861 def parseImpl( self, instring, loc, doActions=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2862 startLoc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2863 instrlen = len(instring)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2864 expr = self.expr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2865 failParse = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2866 while loc <= instrlen:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2867 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2868 if self.failOn:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2869 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2870 self.failOn.tryParse(instring, loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2871 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2872 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2873 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2874 failParse = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2875 raise ParseException(instring, loc, "Found expression " + str(self.failOn))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2876 failParse = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2877 if self.ignoreExpr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2878 while 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2879 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2880 loc = self.ignoreExpr.tryParse(instring,loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2881 # print "found ignoreExpr, advance to", loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2882 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2883 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2884 expr._parse( instring, loc, doActions=False, callPreParse=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2885 skipText = instring[startLoc:loc]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2886 if self.includeMatch:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2887 loc,mat = expr._parse(instring,loc,doActions,callPreParse=False)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2888 if mat:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2889 skipRes = ParseResults( skipText )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2890 skipRes += mat
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2891 return loc, [ skipRes ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2892 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2893 return loc, [ skipText ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2894 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2895 return loc, [ skipText ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2896 except (ParseException,IndexError):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2897 if failParse:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2898 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2899 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2900 loc += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2901 exc = self.myException
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2902 exc.loc = loc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2903 exc.pstr = instring
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2904 raise exc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2905
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2906 class Forward(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2907 """Forward declaration of an expression to be defined later -
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2908 used for recursive grammars, such as algebraic infix notation.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2909 When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2910
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2911 Note: take care when assigning to C{Forward} not to overlook precedence of operators.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2912 Specifically, '\|' has a lower precedence than '<<', so that::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2913 fwdExpr << a \| b \| c
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2914 will actually be evaluated as::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2915 (fwdExpr << a) \| b \| c
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2916 thereby leaving b and c out as parseable alternatives. It is recommended that you
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2917 explicitly group the values inserted into the C{Forward}::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2918 fwdExpr << (a \| b \| c)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2919 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2920 def __init__( self, other=None ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2921 super(Forward,self).__init__( other, savelist=False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2922
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2923 def __lshift__( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2924 if isinstance( other, basestring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2925 other = Literal(other)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2926 self.expr = other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2927 self.mayReturnEmpty = other.mayReturnEmpty
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2928 self.strRepr = None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2929 self.mayIndexError = self.expr.mayIndexError
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2930 self.mayReturnEmpty = self.expr.mayReturnEmpty
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2931 self.setWhitespaceChars( self.expr.whiteChars )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2932 self.skipWhitespace = self.expr.skipWhitespace
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2933 self.saveAsList = self.expr.saveAsList
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2934 self.ignoreExprs.extend(self.expr.ignoreExprs)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2935 return None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2936
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2937 def leaveWhitespace( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2938 self.skipWhitespace = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2939 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2940
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2941 def streamline( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2942 if not self.streamlined:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2943 self.streamlined = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2944 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2945 self.expr.streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2946 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2947
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2948 def validate( self, validateTrace=[] ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2949 if self not in validateTrace:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2950 tmp = validateTrace[:]+[self]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2951 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2952 self.expr.validate(tmp)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2953 self.checkRecursion([])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2954
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2955 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2956 if hasattr(self,"name"):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2957 return self.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2958
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2959 self._revertClass = self.__class__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2960 self.__class__ = _ForwardNoRecurse
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2961 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2962 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2963 retString = _ustr(self.expr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2964 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2965 retString = "None"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2966 finally:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2967 self.__class__ = self._revertClass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2968 return self.__class__.__name__ + ": " + retString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2969
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2970 def copy(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2971 if self.expr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2972 return super(Forward,self).copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2973 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2974 ret = Forward()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2975 ret << self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2976 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2977
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2978 class _ForwardNoRecurse(Forward):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2979 def __str__( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2980 return "..."
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2981
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2982 class TokenConverter(ParseElementEnhance):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2983 """Abstract subclass of C{ParseExpression}, for converting parsed results."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2984 def __init__( self, expr, savelist=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2985 super(TokenConverter,self).__init__( expr )#, savelist )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2986 self.saveAsList = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2987
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2988 class Upcase(TokenConverter):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2989 """Converter to upper case all matching tokens."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2990 def __init__(self, *args):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2991 super(Upcase,self).__init__(*args)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2992 warnings.warn("Upcase class is deprecated, use upcaseTokens parse action instead",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2993 DeprecationWarning,stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2994
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2995 def postParse( self, instring, loc, tokenlist ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2996 return list(map( string.upper, tokenlist ))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2997
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2998
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	2999 class Combine(TokenConverter):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3000 """Converter to concatenate all matching tokens to a single string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3001 By default, the matching patterns must also be contiguous in the input string;
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3002 this can be disabled by specifying C{'adjacent=False'} in the constructor.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3003 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3004 def __init__( self, expr, joinString="", adjacent=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3005 super(Combine,self).__init__( expr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3006 # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3007 if adjacent:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3008 self.leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3009 self.adjacent = adjacent
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3010 self.skipWhitespace = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3011 self.joinString = joinString
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3012 self.callPreparse = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3013
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3014 def ignore( self, other ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3015 if self.adjacent:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3016 ParserElement.ignore(self, other)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3017 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3018 super( Combine, self).ignore( other )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3019 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3020
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3021 def postParse( self, instring, loc, tokenlist ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3022 retToks = tokenlist.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3023 del retToks[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3024 retToks += ParseResults([ "".join(tokenlist._asStringList(self.joinString)) ], modal=self.modalResults)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3025
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3026 if self.resultsName and len(retToks.keys())>0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3027 return [ retToks ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3028 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3029 return retToks
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3030
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3031 class Group(TokenConverter):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3032 """Converter to return the matched tokens as a list - useful for returning tokens of C{ZeroOrMore} and C{OneOrMore} expressions."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3033 def __init__( self, expr ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3034 super(Group,self).__init__( expr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3035 self.saveAsList = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3036
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3037 def postParse( self, instring, loc, tokenlist ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3038 return [ tokenlist ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3039
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3040 class Dict(TokenConverter):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3041 """Converter to return a repetitive expression as a list, but also as a dictionary.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3042 Each element can also be referenced using the first token in the expression as its key.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3043 Useful for tabular report scraping when the first column can be used as a item key.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3044 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3045 def __init__( self, exprs ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3046 super(Dict,self).__init__( exprs )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3047 self.saveAsList = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3048
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3049 def postParse( self, instring, loc, tokenlist ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3050 for i,tok in enumerate(tokenlist):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3051 if len(tok) == 0:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3052 continue
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3053 ikey = tok[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3054 if isinstance(ikey,int):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3055 ikey = _ustr(tok[0]).strip()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3056 if len(tok)==1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3057 tokenlist[ikey] = _ParseResultsWithOffset("",i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3058 elif len(tok)==2 and not isinstance(tok[1],ParseResults):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3059 tokenlist[ikey] = _ParseResultsWithOffset(tok[1],i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3060 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3061 dictvalue = tok.copy() #ParseResults(i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3062 del dictvalue[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3063 if len(dictvalue)!= 1 or (isinstance(dictvalue,ParseResults) and dictvalue.keys()):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3064 tokenlist[ikey] = _ParseResultsWithOffset(dictvalue,i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3065 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3066 tokenlist[ikey] = _ParseResultsWithOffset(dictvalue[0],i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3067
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3068 if self.resultsName:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3069 return [ tokenlist ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3070 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3071 return tokenlist
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3072
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3073
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3074 class Suppress(TokenConverter):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3075 """Converter for ignoring the results of a parsed expression."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3076 def postParse( self, instring, loc, tokenlist ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3077 return []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3078
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3079 def suppress( self ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3080 return self
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3081
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3082
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3083 class OnlyOnce(object):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3084 """Wrapper for parse actions, to ensure they are only called once."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3085 def __init__(self, methodCall):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3086 self.callable = _trim_arity(methodCall)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3087 self.called = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3088 def __call__(self,s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3089 if not self.called:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3090 results = self.callable(s,l,t)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3091 self.called = True
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3092 return results
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3093 raise ParseException(s,l,"")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3094 def reset(self):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3095 self.called = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3096
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3097 def traceParseAction(f):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3098 """Decorator for debugging parse actions."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3099 f = _trim_arity(f)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3100 def z(*paArgs):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3101 thisFunc = f.func_name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3102 s,l,t = paArgs[-3:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3103 if len(paArgs)>3:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3104 thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3105 sys.stderr.write( ">>entering %s(line: '%s', %d, %s)\n" % (thisFunc,line(l,s),l,t) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3106 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3107 ret = f(*paArgs)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3108 except Exception:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3109 exc = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3110 sys.stderr.write( "<<leaving %s (exception: %s)\n" % (thisFunc,exc) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3111 raise
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3112 sys.stderr.write( "<<leaving %s (ret: %s)\n" % (thisFunc,ret) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3113 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3114 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3115 z.__name__ = f.__name__
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3116 except AttributeError:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3117 pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3118 return z
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3119
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3120 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3121 # global helpers
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3122 #
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3123 def delimitedList( expr, delim=",", combine=False ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3124 """Helper to define a delimited list of expressions - the delimiter defaults to ','.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3125 By default, the list elements and delimiters can have intervening whitespace, and
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3126 comments, but this can be overridden by passing C{combine=True} in the constructor.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3127 If C{combine} is set to True, the matching tokens are returned as a single token
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3128 string, with the delimiters included; otherwise, the matching tokens are returned
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3129 as a list of tokens, with the delimiters suppressed.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3130 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3131 dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3132 if combine:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3133 return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3134 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3135 return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3136
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3137 def countedArray( expr, intExpr=None ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3138 """Helper to define a counted list of expressions.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3139 This helper defines a pattern of the form::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3140 integer expr expr expr...
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3141 where the leading integer tells how many expr expressions follow.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3142 The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3143 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3144 arrayExpr = Forward()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3145 def countFieldParseAction(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3146 n = t[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3147 arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3148 return []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3149 if intExpr is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3150 intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3151 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3152 intExpr = intExpr.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3153 intExpr.setName("arrayLen")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3154 intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3155 return ( intExpr + arrayExpr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3156
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3157 def _flatten(L):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3158 ret = []
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3159 for i in L:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3160 if isinstance(i,list):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3161 ret.extend(_flatten(i))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3162 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3163 ret.append(i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3164 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3165
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3166 def matchPreviousLiteral(expr):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3167 """Helper to define an expression that is indirectly defined from
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3168 the tokens matched in a previous expression, that is, it looks
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3169 for a 'repeat' of a previous expression. For example::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3170 first = Word(nums)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3171 second = matchPreviousLiteral(first)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3172 matchExpr = first + ":" + second
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3173 will match C{"1:1"}, but not C{"1:2"}. Because this matches a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3174 previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3175 If this is not desired, use C{matchPreviousExpr}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3176 Do not use with packrat parsing enabled.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3177 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3178 rep = Forward()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3179 def copyTokenToRepeater(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3180 if t:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3181 if len(t) == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3182 rep << t[0]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3183 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3184 # flatten t tokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3185 tflat = _flatten(t.asList())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3186 rep << And( [ Literal(tt) for tt in tflat ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3187 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3188 rep << Empty()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3189 expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3190 return rep
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3191
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3192 def matchPreviousExpr(expr):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3193 """Helper to define an expression that is indirectly defined from
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3194 the tokens matched in a previous expression, that is, it looks
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3195 for a 'repeat' of a previous expression. For example::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3196 first = Word(nums)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3197 second = matchPreviousExpr(first)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3198 matchExpr = first + ":" + second
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3199 will match C{"1:1"}, but not C{"1:2"}. Because this matches by
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3200 expressions, will not match the leading C{"1:1"} in C{"1:10"};
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3201 the expressions are evaluated first, and then compared, so
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3202 C{"1"} is compared with C{"10"}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3203 Do not use with packrat parsing enabled.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3204 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3205 rep = Forward()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3206 e2 = expr.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3207 rep << e2
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3208 def copyTokenToRepeater(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3209 matchTokens = _flatten(t.asList())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3210 def mustMatchTheseTokens(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3211 theseTokens = _flatten(t.asList())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3212 if theseTokens != matchTokens:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3213 raise ParseException("",0,"")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3214 rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3215 expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3216 return rep
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3217
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3218 def _escapeRegexRangeChars(s):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3219 #~ escape these chars: ^-]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3220 for c in r"\^-]":
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3221 s = s.replace(c,_bslash+c)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3222 s = s.replace("\n",r"\n")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3223 s = s.replace("\t",r"\t")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3224 return _ustr(s)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3225
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3226 def oneOf( strs, caseless=False, useRegex=True ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3227 """Helper to quickly define a set of alternative Literals, and makes sure to do
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3228 longest-first testing when there is a conflict, regardless of the input order,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3229 but returns a C{MatchFirst} for best performance.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3230
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3231 Parameters:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3232 - strs - a string of space-delimited literals, or a list of string literals
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3233 - caseless - (default=False) - treat all literals as caseless
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3234 - useRegex - (default=True) - as an optimization, will generate a Regex
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3235 object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3236 if creating a C{Regex} raises an exception)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3237 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3238 if caseless:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3239 isequal = ( lambda a,b: a.upper() == b.upper() )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3240 masks = ( lambda a,b: b.upper().startswith(a.upper()) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3241 parseElementClass = CaselessLiteral
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3242 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3243 isequal = ( lambda a,b: a == b )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3244 masks = ( lambda a,b: b.startswith(a) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3245 parseElementClass = Literal
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3246
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3247 if isinstance(strs,(list,tuple)):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3248 symbols = list(strs[:])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3249 elif isinstance(strs,basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3250 symbols = strs.split()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3251 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3252 warnings.warn("Invalid argument to oneOf, expected string or list",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3253 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3254
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3255 i = 0
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3256 while i < len(symbols)-1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3257 cur = symbols[i]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3258 for j,other in enumerate(symbols[i+1:]):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3259 if ( isequal(other, cur) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3260 del symbols[i+j+1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3261 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3262 elif ( masks(cur, other) ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3263 del symbols[i+j+1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3264 symbols.insert(i,other)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3265 cur = other
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3266 break
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3267 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3268 i += 1
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3269
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3270 if not caseless and useRegex:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3271 #~ print (strs,"->", "\|".join( [ _escapeRegexChars(sym) for sym in symbols] ))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3272 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3273 if len(symbols)==len("".join(symbols)):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3274 return Regex( "[%s]" % "".join( [ _escapeRegexRangeChars(sym) for sym in symbols] ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3275 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3276 return Regex( "\|".join( [ re.escape(sym) for sym in symbols] ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3277 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3278 warnings.warn("Exception creating Regex for oneOf, building MatchFirst",
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3279 SyntaxWarning, stacklevel=2)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3280
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3281
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3282 # last resort, just use MatchFirst
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3283 return MatchFirst( [ parseElementClass(sym) for sym in symbols ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3284
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3285 def dictOf( key, value ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3286 """Helper to easily and clearly define a dictionary by specifying the respective patterns
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3287 for the key and value. Takes care of defining the C{Dict}, C{ZeroOrMore}, and C{Group} tokens
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3288 in the proper order. The key pattern can include delimiting markers or punctuation,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3289 as long as they are suppressed, thereby leaving the significant key text. The value
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3290 pattern can include named results, so that the C{Dict} results can include named token
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3291 fields.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3292 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3293 return Dict( ZeroOrMore( Group ( key + value ) ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3294
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3295 def originalTextFor(expr, asString=True):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3296 """Helper to return the original, untokenized text for a given expression. Useful to
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3297 restore the parsed fields of an HTML start tag into the raw tag text itself, or to
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3298 revert separate tokens with intervening whitespace back to the original matching
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3299 input text. Simpler to use than the parse action C{L{keepOriginalText}}, and does not
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3300 require the inspect module to chase up the call stack. By default, returns a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3301 string containing the original parsed text.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3302
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3303 If the optional C{asString} argument is passed as C{False}, then the return value is a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3304 C{ParseResults} containing any results names that were originally matched, and a
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3305 single token containing the original matched text from the input string. So if
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3306 the expression passed to C{L{originalTextFor}} contains expressions with defined
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3307 results names, you must set C{asString} to C{False} if you want to preserve those
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3308 results name values."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3309 locMarker = Empty().setParseAction(lambda s,loc,t: loc)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3310 endlocMarker = locMarker.copy()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3311 endlocMarker.callPreparse = False
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3312 matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3313 if asString:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3314 extractText = lambda s,l,t: s[t._original_start:t._original_end]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3315 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3316 def extractText(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3317 del t[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3318 t.insert(0, s[t._original_start:t._original_end])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3319 del t["_original_start"]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3320 del t["_original_end"]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3321 matchExpr.setParseAction(extractText)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3322 return matchExpr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3323
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3324 def ungroup(expr):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3325 """Helper to undo pyparsing's default grouping of And expressions, even
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3326 if all but one are non-empty."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3327 return TokenConverter(expr).setParseAction(lambda t:t[0])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3328
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3329 # convenience constants for positional expressions
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3330 empty = Empty().setName("empty")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3331 lineStart = LineStart().setName("lineStart")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3332 lineEnd = LineEnd().setName("lineEnd")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3333 stringStart = StringStart().setName("stringStart")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3334 stringEnd = StringEnd().setName("stringEnd")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3335
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3336 _escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3337 _printables_less_backslash = "".join([ c for c in printables if c not in r"\]" ])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3338 _escapedHexChar = Regex(r"\\0?[xX][0-9a-fA-F]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],16)))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3339 _escapedOctChar = Regex(r"\\0[0-7]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],8)))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3340 _singleChar = _escapedPunc \| _escapedHexChar \| _escapedOctChar \| Word(_printables_less_backslash,exact=1)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3341 _charRange = Group(_singleChar + Suppress("-") + _singleChar)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3342 _reBracketExpr = Literal("[") + Optional("^").setResultsName("negate") + Group( OneOrMore( _charRange \| _singleChar ) ).setResultsName("body") + "]"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3343
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3344 _expanded = lambda p: (isinstance(p,ParseResults) and ''.join([ unichr(c) for c in range(ord(p[0]),ord(p[1])+1) ]) or p)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3345
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3346 def srange(s):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3347 r"""Helper to easily define string ranges for use in Word construction. Borrows
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3348 syntax from regexp '[]' string range definitions::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3349 srange("[0-9]") -> "0123456789"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3350 srange("[a-z]") -> "abcdefghijklmnopqrstuvwxyz"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3351 srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3352 The input string must be enclosed in []'s, and the returned string is the expanded
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3353 character set joined into a single string.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3354 The values enclosed in the []'s may be::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3355 a single character
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3356 an escaped character with a leading backslash (such as \- or \])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3357 an escaped hex character with a leading '\x' (\x21, which is a '!' character)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3358 (\0x## is also supported for backwards compatibility)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3359 an escaped octal character with a leading '\0' (\041, which is a '!' character)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3360 a range of any of the above, separated by a dash ('a-z', etc.)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3361 any combination of the above ('aeiouy', 'a-zA-Z0-9_$', etc.)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3362 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3363 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3364 return "".join([_expanded(part) for part in _reBracketExpr.parseString(s).body])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3365 except:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3366 return ""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3367
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3368 def matchOnlyAtCol(n):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3369 """Helper method for defining parse actions that require matching at a specific
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3370 column in the input text.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3371 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3372 def verifyCol(strg,locn,toks):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3373 if col(locn,strg) != n:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3374 raise ParseException(strg,locn,"matched token not at column %d" % n)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3375 return verifyCol
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3376
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3377 def replaceWith(replStr):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3378 """Helper method for common parse actions that simply return a literal value. Especially
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3379 useful when used with C{transformString()}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3380 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3381 def _replFunc(*args):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3382 return [replStr]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3383 return _replFunc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3384
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3385 def removeQuotes(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3386 """Helper parse action for removing quotation marks from parsed quoted strings.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3387 To use, add this parse action to quoted string using::
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3388 quotedString.setParseAction( removeQuotes )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3389 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3390 return t[0][1:-1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3391
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3392 def upcaseTokens(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3393 """Helper parse action to convert tokens to upper case."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3394 return [ tt.upper() for tt in map(_ustr,t) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3395
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3396 def downcaseTokens(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3397 """Helper parse action to convert tokens to lower case."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3398 return [ tt.lower() for tt in map(_ustr,t) ]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3399
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3400 def keepOriginalText(s,startLoc,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3401 """DEPRECATED - use new helper method C{originalTextFor}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3402 Helper parse action to preserve original parsed text,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3403 overriding any nested parse actions."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3404 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3405 endloc = getTokensEndLoc()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3406 except ParseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3407 raise ParseFatalException("incorrect usage of keepOriginalText - may only be called as a parse action")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3408 del t[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3409 t += ParseResults(s[startLoc:endloc])
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3410 return t
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3411
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3412 def getTokensEndLoc():
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3413 """Method to be called from within a parse action to determine the end
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3414 location of the parsed tokens."""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3415 import inspect
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3416 fstack = inspect.stack()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3417 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3418 # search up the stack (through intervening argument normalizers) for correct calling routine
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3419 for f in fstack[2:]:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3420 if f[3] == "_parseNoCache":
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3421 endloc = f[0].f_locals["loc"]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3422 return endloc
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3423 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3424 raise ParseFatalException("incorrect usage of getTokensEndLoc - may only be called from within a parse action")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3425 finally:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3426 del fstack
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3427
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3428 def _makeTags(tagStr, xml):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3429 """Internal helper to construct opening and closing tag expressions, given a tag name"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3430 if isinstance(tagStr,basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3431 resname = tagStr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3432 tagStr = Keyword(tagStr, caseless=not xml)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3433 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3434 resname = tagStr.name
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3435
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3436 tagAttrName = Word(alphas,alphanums+"_-:")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3437 if (xml):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3438 tagAttrValue = dblQuotedString.copy().setParseAction( removeQuotes )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3439 openTag = Suppress("<") + tagStr("tag") + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3440 Dict(ZeroOrMore(Group( tagAttrName + Suppress("=") + tagAttrValue ))) + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3441 Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3442 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3443 printablesLessRAbrack = "".join( [ c for c in printables if c not in ">" ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3444 tagAttrValue = quotedString.copy().setParseAction( removeQuotes ) \| Word(printablesLessRAbrack)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3445 openTag = Suppress("<") + tagStr("tag") + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3446 Dict(ZeroOrMore(Group( tagAttrName.setParseAction(downcaseTokens) + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3447 Optional( Suppress("=") + tagAttrValue ) ))) + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3448 Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3449 closeTag = Combine(_L("</") + tagStr + ">")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3450
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3451 openTag = openTag.setResultsName("start"+"".join(resname.replace(":"," ").title().split())).setName("<%s>" % tagStr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3452 closeTag = closeTag.setResultsName("end"+"".join(resname.replace(":"," ").title().split())).setName("</%s>" % tagStr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3453 openTag.tag = resname
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3454 closeTag.tag = resname
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3455 return openTag, closeTag
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3456
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3457 def makeHTMLTags(tagStr):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3458 """Helper to construct opening and closing tag expressions for HTML, given a tag name"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3459 return _makeTags( tagStr, False )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3460
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3461 def makeXMLTags(tagStr):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3462 """Helper to construct opening and closing tag expressions for XML, given a tag name"""
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3463 return _makeTags( tagStr, True )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3464
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3465 def withAttribute(args,*attrDict):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3466 """Helper to create a validating parse action to be used with start tags created
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3467 with C{makeXMLTags} or C{makeHTMLTags}. Use C{withAttribute} to qualify a starting tag
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3468 with a required attribute value, to avoid false matches on common tags such as
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3469 C{<TD>} or C{<DIV>}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3470
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3471 Call C{withAttribute} with a series of attribute names and values. Specify the list
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3472 of filter attributes names and values as:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3473 - keyword arguments, as in C{(align="right")}, or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3474 - as an explicit dict with C{**} operator, when an attribute name is also a Python
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3475 reserved word, as in C{**{"class":"Customer", "align":"right"}}
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3476 - a list of name-value tuples, as in ( ("ns1:class", "Customer"), ("ns2:align","right") )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3477 For attribute names with a namespace prefix, you must use the second form. Attribute
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3478 names are matched insensitive to upper/lower case.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3479
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3480 To verify that the attribute exists, but without specifying a value, pass
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3481 C{withAttribute.ANY_VALUE} as the value.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3482 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3483 if args:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3484 attrs = args[:]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3485 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3486 attrs = attrDict.items()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3487 attrs = [(k,v) for k,v in attrs]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3488 def pa(s,l,tokens):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3489 for attrName,attrValue in attrs:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3490 if attrName not in tokens:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3491 raise ParseException(s,l,"no matching attribute " + attrName)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3492 if attrValue != withAttribute.ANY_VALUE and tokens[attrName] != attrValue:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3493 raise ParseException(s,l,"attribute '%s' has value '%s', must be '%s'" %
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3494 (attrName, tokens[attrName], attrValue))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3495 return pa
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3496 withAttribute.ANY_VALUE = object()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3497
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3498 opAssoc = _Constants()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3499 opAssoc.LEFT = object()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3500 opAssoc.RIGHT = object()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3501
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3502 def operatorPrecedence( baseExpr, opList ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3503 """Helper method for constructing grammars of expressions made up of
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3504 operators working in a precedence hierarchy. Operators may be unary or
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3505 binary, left- or right-associative. Parse actions can also be attached
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3506 to operator expressions.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3507
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3508 Parameters:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3509 - baseExpr - expression representing the most basic element for the nested
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3510 - opList - list of tuples, one for each operator precedence level in the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3511 expression grammar; each tuple is of the form
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3512 (opExpr, numTerms, rightLeftAssoc, parseAction), where:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3513 - opExpr is the pyparsing expression for the operator;
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3514 may also be a string, which will be converted to a Literal;
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3515 if numTerms is 3, opExpr is a tuple of two expressions, for the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3516 two operators separating the 3 terms
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3517 - numTerms is the number of terms for this operator (must
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3518 be 1, 2, or 3)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3519 - rightLeftAssoc is the indicator whether the operator is
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3520 right or left associative, using the pyparsing-defined
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3521 constants opAssoc.RIGHT and opAssoc.LEFT.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3522 - parseAction is the parse action to be associated with
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3523 expressions matching this operator expression (the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3524 parse action tuple member may be omitted)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3525 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3526 ret = Forward()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3527 lastExpr = baseExpr \| ( Suppress('(') + ret + Suppress(')') )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3528 for i,operDef in enumerate(opList):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3529 opExpr,arity,rightLeftAssoc,pa = (operDef + (None,))[:4]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3530 if arity == 3:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3531 if opExpr is None or len(opExpr) != 2:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3532 raise ValueError("if numterms=3, opExpr must be a tuple or list of two expressions")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3533 opExpr1, opExpr2 = opExpr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3534 thisExpr = Forward()#.setName("expr%d" % i)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3535 if rightLeftAssoc == opAssoc.LEFT:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3536 if arity == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3537 matchExpr = FollowedBy(lastExpr + opExpr) + Group( lastExpr + OneOrMore( opExpr ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3538 elif arity == 2:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3539 if opExpr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3540 matchExpr = FollowedBy(lastExpr + opExpr + lastExpr) + Group( lastExpr + OneOrMore( opExpr + lastExpr ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3541 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3542 matchExpr = FollowedBy(lastExpr+lastExpr) + Group( lastExpr + OneOrMore(lastExpr) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3543 elif arity == 3:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3544 matchExpr = FollowedBy(lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr) + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3545 Group( lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3546 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3547 raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3548 elif rightLeftAssoc == opAssoc.RIGHT:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3549 if arity == 1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3550 # try to avoid LR with this extra test
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3551 if not isinstance(opExpr, Optional):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3552 opExpr = Optional(opExpr)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3553 matchExpr = FollowedBy(opExpr.expr + thisExpr) + Group( opExpr + thisExpr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3554 elif arity == 2:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3555 if opExpr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3556 matchExpr = FollowedBy(lastExpr + opExpr + thisExpr) + Group( lastExpr + OneOrMore( opExpr + thisExpr ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3557 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3558 matchExpr = FollowedBy(lastExpr + thisExpr) + Group( lastExpr + OneOrMore( thisExpr ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3559 elif arity == 3:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3560 matchExpr = FollowedBy(lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr) + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3561 Group( lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3562 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3563 raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3564 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3565 raise ValueError("operator must indicate right or left associativity")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3566 if pa:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3567 matchExpr.setParseAction( pa )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3568 thisExpr << ( matchExpr \| lastExpr )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3569 lastExpr = thisExpr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3570 ret << lastExpr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3571 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3572
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3573 dblQuotedString = Regex(r'"(?:[^"\n\r\\]\|(?:"")\|(?:\\x[0-9a-fA-F]+)\|(?:\\.))*"').setName("string enclosed in double quotes")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3574 sglQuotedString = Regex(r"'(?:[^'\n\r\\]\|(?:'')\|(?:\\x[0-9a-fA-F]+)\|(?:\\.))*'").setName("string enclosed in single quotes")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3575 quotedString = Regex(r'''(?:"(?:[^"\n\r\\]\|(?:"")\|(?:\\x[0-9a-fA-F]+)\|(?:\\.))")\|(?:'(?:[^'\n\r\\]\|(?:'')\|(?:\\x[0-9a-fA-F]+)\|(?:\\.))')''').setName("quotedString using single or double quotes")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3576 unicodeString = Combine(_L('u') + quotedString.copy())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3577
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3578 def nestedExpr(opener="(", closer=")", content=None, ignoreExpr=quotedString.copy()):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3579 """Helper method for defining nested lists enclosed in opening and closing
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3580 delimiters ("(" and ")" are the default).
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3581
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3582 Parameters:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3583 - opener - opening character for a nested list (default="("); can also be a pyparsing expression
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3584 - closer - closing character for a nested list (default=")"); can also be a pyparsing expression
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3585 - content - expression for items within the nested lists (default=None)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3586 - ignoreExpr - expression for ignoring opening and closing delimiters (default=quotedString)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3587
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3588 If an expression is not provided for the content argument, the nested
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3589 expression will capture all whitespace-delimited content between delimiters
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3590 as a list of separate values.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3591
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3592 Use the C{ignoreExpr} argument to define expressions that may contain
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3593 opening or closing characters that should not be treated as opening
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3594 or closing characters for nesting, such as quotedString or a comment
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3595 expression. Specify multiple expressions using an C{L{Or}} or C{L{MatchFirst}}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3596 The default is L{quotedString}, but if no expressions are to be ignored,
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3597 then pass C{None} for this argument.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3598 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3599 if opener == closer:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3600 raise ValueError("opening and closing strings cannot be the same")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3601 if content is None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3602 if isinstance(opener,basestring) and isinstance(closer,basestring):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3603 if len(opener) == 1 and len(closer)==1:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3604 if ignoreExpr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3605 content = (Combine(OneOrMore(~ignoreExpr +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3606 CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS,exact=1))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3607 ).setParseAction(lambda t:t[0].strip()))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3608 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3609 content = (empty.copy()+CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3610 ).setParseAction(lambda t:t[0].strip()))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3611 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3612 if ignoreExpr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3613 content = (Combine(OneOrMore(~ignoreExpr +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3614 ~Literal(opener) + ~Literal(closer) +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3615 CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3616 ).setParseAction(lambda t:t[0].strip()))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3617 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3618 content = (Combine(OneOrMore(~Literal(opener) + ~Literal(closer) +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3619 CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3620 ).setParseAction(lambda t:t[0].strip()))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3621 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3622 raise ValueError("opening and closing arguments must be strings if no content expression is given")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3623 ret = Forward()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3624 if ignoreExpr is not None:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3625 ret << Group( Suppress(opener) + ZeroOrMore( ignoreExpr \| ret \| content ) + Suppress(closer) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3626 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3627 ret << Group( Suppress(opener) + ZeroOrMore( ret \| content ) + Suppress(closer) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3628 return ret
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3629
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3630 def indentedBlock(blockStatementExpr, indentStack, indent=True):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3631 """Helper method for defining space-delimited indentation blocks, such as
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3632 those used to define block statements in Python source code.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3633
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3634 Parameters:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3635 - blockStatementExpr - expression defining syntax of statement that
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3636 is repeated within the indented block
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3637 - indentStack - list created by caller to manage indentation stack
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3638 (multiple statementWithIndentedBlock expressions within a single grammar
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3639 should share a common indentStack)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3640 - indent - boolean indicating whether block must be indented beyond the
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3641 the current level; set to False for block of left-most statements
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3642 (default=True)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3643
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3644 A valid block must contain at least one C{blockStatement}.
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3645 """
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3646 def checkPeerIndent(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3647 if l >= len(s): return
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3648 curCol = col(l,s)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3649 if curCol != indentStack[-1]:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3650 if curCol > indentStack[-1]:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3651 raise ParseFatalException(s,l,"illegal nesting")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3652 raise ParseException(s,l,"not a peer entry")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3653
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3654 def checkSubIndent(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3655 curCol = col(l,s)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3656 if curCol > indentStack[-1]:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3657 indentStack.append( curCol )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3658 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3659 raise ParseException(s,l,"not a subentry")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3660
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3661 def checkUnindent(s,l,t):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3662 if l >= len(s): return
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3663 curCol = col(l,s)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3664 if not(indentStack and curCol < indentStack[-1] and curCol <= indentStack[-2]):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3665 raise ParseException(s,l,"not an unindent")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3666 indentStack.pop()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3667
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3668 NL = OneOrMore(LineEnd().setWhitespaceChars("\t ").suppress())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3669 INDENT = Empty() + Empty().setParseAction(checkSubIndent)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3670 PEER = Empty().setParseAction(checkPeerIndent)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3671 UNDENT = Empty().setParseAction(checkUnindent)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3672 if indent:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3673 smExpr = Group( Optional(NL) +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3674 #~ FollowedBy(blockStatementExpr) +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3675 INDENT + (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) + UNDENT)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3676 else:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3677 smExpr = Group( Optional(NL) +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3678 (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3679 blockStatementExpr.ignore(_bslash + LineEnd())
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3680 return smExpr
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3681
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3682 alphas8bit = srange(r"[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3683 punc8bit = srange(r"[\0xa1-\0xbf\0xd7\0xf7]")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3684
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3685 anyOpenTag,anyCloseTag = makeHTMLTags(Word(alphas,alphanums+"_:"))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3686 commonHTMLEntity = Combine(_L("&") + oneOf("gt lt amp nbsp quot").setResultsName("entity") +";").streamline()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3687 _htmlEntityMap = dict(zip("gt lt amp nbsp quot".split(),'><& "'))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3688 replaceHTMLEntity = lambda t : t.entity in _htmlEntityMap and _htmlEntityMap[t.entity] or None
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3689
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3690 # it's easy to get these comment structures wrong - they're very common, so may as well make them available
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3691 cStyleComment = Regex(r"/\(?:[^]\+)+?/").setName("C style comment")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3692
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3693 htmlComment = Regex(r"<!--[\s\S]*?-->")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3694 restOfLine = Regex(r".*").leaveWhitespace()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3695 dblSlashComment = Regex(r"\/\/(\\\n\|.)*").setName("// comment")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3696 cppStyleComment = Regex(r"/(?:\(?:[^]\+)+?/\|/[^\n](?:\n[^\n])*?(?:(?<!\\)\|\Z))").setName("C++ style comment")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3697
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3698 javaStyleComment = cppStyleComment
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3699 pythonStyleComment = Regex(r"#.*").setName("Python style comment")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3700 _noncomma = "".join( [ c for c in printables if c != "," ] )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3701 _commasepitem = Combine(OneOrMore(Word(_noncomma) +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3702 Optional( Word(" \t") +
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3703 ~Literal(",") + ~LineEnd() ) ) ).streamline().setName("commaItem")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3704 commaSeparatedList = delimitedList( Optional( quotedString.copy() \| _commasepitem, default="") ).setName("commaSeparatedList")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3705
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3706
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3707 if __name__ == "__main__":
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3708
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3709 def test( teststring ):
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3710 try:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3711 tokens = simpleSQL.parseString( teststring )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3712 tokenlist = tokens.asList()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3713 print (teststring + "->" + str(tokenlist))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3714 print ("tokens = " + str(tokens))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3715 print ("tokens.columns = " + str(tokens.columns))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3716 print ("tokens.tables = " + str(tokens.tables))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3717 print (tokens.asXML("SQL",True))
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3718 except ParseBaseException:
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3719 err = sys.exc_info()[1]
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3720 print (teststring + "->")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3721 print (err.line)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3722 print (" "*(err.column-1) + "^")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3723 print (err)
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3724 print()
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3725
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3726 selectToken = CaselessLiteral( "select" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3727 fromToken = CaselessLiteral( "from" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3728
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3729 ident = Word( alphas, alphanums + "_$" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3730 columnName = delimitedList( ident, ".", combine=True ).setParseAction( upcaseTokens )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3731 columnNameList = Group( delimitedList( columnName ) )#.setName("columns")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3732 tableName = delimitedList( ident, ".", combine=True ).setParseAction( upcaseTokens )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3733 tableNameList = Group( delimitedList( tableName ) )#.setName("tables")
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3734 simpleSQL = ( selectToken + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3735 ( '*' \| columnNameList ).setResultsName( "columns" ) + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3736 fromToken + \
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3737 tableNameList.setResultsName( "tables" ) )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3738
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3739 test( "SELECT * from XYZZY, ABC" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3740 test( "select * from SYS.XYZZY" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3741 test( "Select A from Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3742 test( "Select AA,BB,CC from Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3743 test( "Select A, B, C from Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3744 test( "Select A, B, C from Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3745 test( "Xelect A, B, C from Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3746 test( "Select A, B, C frox Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3747 test( "Select" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3748 test( "Select ^^^ frox Sys.dual" )
4fab69a1027d Add MusicXML conversion to tune pages. Jim Hague <jim.hague@acm.org> parents: diff changeset	3749 test( "Select A, B, C from Sys.dual, Table2 " )

Mercurial > dottes

annotate abc2xml/pyparsing.py @ 851:4bfff0cce12d