dottes: abcrange.py annotate

annotate abcrange.py @ 689:4ac5d00c1328

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author	Jim Hague <jim.hague@acm.org>
date	Sat, 16 Sep 2017 23:09:15 +0100
parents	1b79867b4f35
children	2f6e05d0aba0

rev	line source
587 1b79867b4f35 Convert remaining Python to Python3 and add +: support. Jim Hague <jim.hague@acm.org> parents: 322 diff changeset	1 #!/usr/bin/env python3
322 b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	2 #
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	3 # Find the range of a tune. Do minimal parsing of an ABC input file
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	4 # and print the lowest and highest notes therein. Accidentals are
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	5 # ignored.
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	6 #
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	7 # The output is given in purely numeric form, to avoid needing to
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	8 # re-parse it in an external script. A single line is printed with
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	9 # the highest note followed by a space and the lowest note. Middle C ('C') is
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	10 # 100. D an octave about ('d') is 108. D an octave above that ('d'') is
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	11 # 205. D below middle C ('d,') is 94. And so on.
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	12 #
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	13 # For example:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	14 # $./abcrange.py choon.abc
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	15 # choon.abc: 112 97
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	16 #
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	17
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	18 import sys
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	19
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	20 def process(filename, inf):
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	21 highest = 0
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	22 lowest = 1000
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	23 for line in inf:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	24 line = line.strip()
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	25 # If it is empty or starts "%", ignore it.
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	26 if len(line) == 0 or line[0] == "%":
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	27 continue
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	28
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	29 # Is it a header line? I.e. does it start LETTER COLON?
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	30 # If so, ignore.
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	31 start = line[:2]
587 1b79867b4f35 Convert remaining Python to Python3 and add +: support. Jim Hague <jim.hague@acm.org> parents: 322 diff changeset	32 if len(start) > 1 and start[1] == ":" and (start[0].isalpha() or start[0] == '+'):
322 b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	33 continue
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	34
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	35 # Tune line.
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	36 inchord = False
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	37 note = 0
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	38 notevals = {
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	39 "C": 100,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	40 "D": 101,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	41 "E": 102,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	42 "F": 103,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	43 "G": 104,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	44 "A": 105,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	45 "B": 106,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	46 "c": 107,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	47 "d": 108,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	48 "e": 109,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	49 "f": 110,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	50 "g": 111,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	51 "a": 112,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	52 "b": 113,
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	53 }
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	54 for c in line:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	55 if c == "," and note > 0:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	56 note = note - 7
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	57 continue
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	58 elif c == "'" and note > 0:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	59 note = note + 7
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	60 continue
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	61
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	62 if note > 0:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	63 if note > highest:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	64 highest = note
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	65 if note < lowest:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	66 lowest = note
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	67 note = 0
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	68
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	69 if c == '"':
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	70 inchord = not inchord
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	71 continue
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	72 if inchord:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	73 continue
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	74
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	75 if c in notevals:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	76 note = notevals[c]
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	77
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	78 if note > 0:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	79 if note > highest:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	80 highest = note
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	81 if note < lowest:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	82 lowest = note
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	83 note = 0
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	84
587 1b79867b4f35 Convert remaining Python to Python3 and add +: support. Jim Hague <jim.hague@acm.org> parents: 322 diff changeset	85 print("{0}: {1} {2}".format(filename, highest, lowest))
322 b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	86
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	87 if len(sys.argv) > 1:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	88 for arg in sys.argv[1:]:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	89 try:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	90 inf = open(arg, "r")
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	91 process(arg, inf)
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	92 finally:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	93 inf.close()
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	94 else:
b4a0161e8870 Add abcrange.py to return the range of a tune, and use it in instrument transposition. Jim Hague <jim.hague@acm.org> parents: diff changeset	95 process("stdin", sys.stdin)

Mercurial > dottes

annotate abcrange.py @ 689:4ac5d00c1328