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annotate abcfield.py @ 586:daa3b76bd11f

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More abcfield.py updates and mark it Python 3. - Move title fixups into Python. - Move key display name expansion into Python. - Add Dottes-specific header continuation line format. None of the usual tools appears to support the official +: continuation.
author Jim Hague <jim.hague@acm.org>
date Mon, 31 Oct 2016 23:48:45 +0000
parents 696c461c8dc0
children afc031477784
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python3
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2 #
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3 # Extact a text field (title, by default) from a .abc file, and print it out
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4 # with any ABC accented characters converted to HTML (default) or Latex.
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5 #
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6 # Optionally rearrange a field into display format:
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7 # * In Title fields, change 'sort' form such as 'Exploding Potato, The'
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8 # to display format 'The Exploding Potato'.
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9 # * In Key fields, translate the ABC key representation to full text,
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10 # e.g. G#dor becomes G# Dorian.
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11 #
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12 # Recognise continuation header fields and print those too. The ABC standard
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13 # defines continuation fields as starting ':+'. Regrettably none of the tools
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14 # I am using the Booke recognise that syntax, so I am adopting a Booke
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15 # convention of '<header>:+' *also* being a continuation. Note that a
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16 # continuation is a distinct line in the field value; the value has a line
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17 # break between it and the previous line.
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18 #
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19
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20 import optparse
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21 import sys
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22
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23 accentedletters = {
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24 # Acute accents
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25 "'A" : ("&Aacute;", "\\'{A}"),
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26 "'E" : ("&Eacute;", "\\'{E}"),
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27 "'I" : ("&Iacute;", "\\'{I}"),
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28 "'O" : ("&Oacute;", "\\'{O}"),
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29 "'U" : ("&Uacute;", "\\'{U}"),
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30 "'Y" : ("&Yacute;", "\\'{Y}"),
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31 "'a" : ("&aacute;", "\\'{a}"),
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32 "'e" : ("&eacute;", "\\'{e}"),
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33 "'i" : ("&iacute;", "\\'{i}"),
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34 "'o" : ("&oacute;", "\\'{o}"),
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35 "'u" : ("&uacute;", "\\'{u}"),
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36 "'y" : ("&yacute;", "\\'{y}"),
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37
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38 # Grave accents
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39 "`A" : ("&Agrave;", "\\`{A}"),
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40 "`E" : ("&Egrave;", "\\`{E}"),
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41 "`I" : ("&Igrave;", "\\`{I}"),
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42 "`O" : ("&Ograve;", "\\`{O}"),
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43 "`U" : ("&Ugrave;", "\\`{U}"),
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44 "`a" : ("&agrave;", "\\`{a}"),
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45 "`e" : ("&egrave;", "\\`{e}"),
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46 "`i" : ("&igrave;", "\\`{i}"),
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47 "`o" : ("&ograve;", "\\`{o}"),
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48 "`u" : ("&ugrave;", "\\`{u}"),
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49
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50 # Umlauts
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51 "\"A" : ("&Auml;", "\\\"{A}"),
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52 "\"E" : ("&Euml;", "\\\"{E}"),
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53 "\"I" : ("&Iuml;", "\\\"{I}"),
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54 "\"O" : ("&Ouml;", "\\\"{O}"),
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55 "\"U" : ("&Uuml;", "\\\"{U}"),
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56 "\"Y" : ("&Yuml;", "\\\"{Y}"),
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57 "\"a" : ("&auml;", "\\\"{a}"),
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58 "\"e" : ("&euml;", "\\\"{e}"),
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59 "\"i" : ("&iuml;", "\\\"{\i}"),
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60 "\"o" : ("&ouml;", "\\\"{o}"),
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61 "\"u" : ("&uuml;", "\\\"{u}"),
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62 "\"y" : ("&yuml;", "\\\"{y}"),
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63
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64 # Circumflexes
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65 "^A" : ("&Acirc;", "\\^{A}"),
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66 "^E" : ("&Ecirc;", "\\^{E}"),
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67 "^I" : ("&Icirc;", "\\^{I}"),
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68 "^O" : ("&Ocirc;", "\\^{O}"),
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69 "^U" : ("&Ucirc;", "\\^{U}"),
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70 "^a" : ("&acirc;", "\\^{a}"),
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71 "^e" : ("&ecirc;", "\\^{e}"),
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72 "^i" : ("&icirc;", "\\^{\i}"),
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73 "^o" : ("&ocirc;", "\\^{o}"),
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74 "^u" : ("&ucirc;", "\\^{u}"),
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75
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76 # Tilde
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77 "~A" : ("&Atilde;", "\\~{A}"),
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78 "~N" : ("&Ntilde;", "\\~{N}"),
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79 "~O" : ("&Otilde;", "\\~{O}"),
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80 "~a" : ("&atilde;", "\\~{a}"),
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81 "~n" : ("&ntilde;", "\\~{n}"),
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82 "~o" : ("&otilde;", "\\~{o}"),
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83
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84 # Cedilla
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85 ",C" : ("&Ccedil;", "\\c{C}"),
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86 ",c" : ("&ccedil;", "\\c{c}"),
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87
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88 # Slash
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89 "/O" : ("&Oslash;", "\\O"),
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90 "/o" : ("&oslash;", "\\o"),
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91
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92 # Ring
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93 "AA" : ("&Aring;", "\\r{A}"),
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94 "aa" : ("&aring;", "\\r{a}"),
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95
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96 # Ligatures
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97 "AE" : ("&AElig;", "\\AE"),
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98 "ae" : ("&aelig;", "\\ae"),
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99 "ss" : ("&szlig;", "\\ss"),
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100 }
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101
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102 abckeys = {
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103 "m": "Minor",
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104 "min": "Minor",
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105 "mix": "Mixolydian",
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106 "dor": "Dorian",
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107 "phr": "Phrygian",
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108 "lyd": "Lydian",
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109 "loc": "Locrian",
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110 }
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111
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112 # Convert ABC accented chars to HTML entities or LaTex.
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113 def convertAccents(t, latex=False):
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114 res = ""
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115 while True:
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116 p = t.partition('\\')
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117 res += p[0]
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118 if p[1] == "":
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119 break
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120 abc = p[2][0:2]
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121 t = p[2][2:]
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122 if abc in accentedletters:
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123 if latex:
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124 res += accentedletters[abc][1]
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125 else:
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126 res += accentedletters[abc][0]
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127 else:
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128 res += "\\" + abc
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129 return res
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130
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131 # Convert Title fields from sort to display, so Bat, The->The Bat.
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parents: 584
diff changeset
132 def convertTitleToDisplay(t):
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
133 p = t.rpartition(',')
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
134 if p[1] == "":
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
135 return t
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
136 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
137 return p[2].strip() + " " + p[0].strip()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
138
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
139 # Convert Key field from ABC to display, so G#dor->G# Dorian.
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
140 def convertKeyToDisplay(t):
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
141 letter = t[0].upper()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
142 accidental = ""
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
143 mode = ""
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Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
144 try:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
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145 accidental = t[1]
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
146 if accidental == '#' or accidental == 'b':
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
147 mode = t[2:]
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
148 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
149 accidental = ""
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
150 mode = t[1:]
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
151 except IndexError:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
152 pass
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
153 mode = mode.strip().lower()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
154 return letter + accidental + ' ' + abckeys.get(mode, "Major")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
155
daa3b76bd11f More abcfield.py updates and mark it Python 3.
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parents: 584
diff changeset
156 # Return the raw text for a given field. Optionally the nth field is taken,
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
157 # or the field data must start with a designated string to be recognised.
daa3b76bd11f More abcfield.py updates and mark it Python 3.
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parents: 584
diff changeset
158 def getFieldText(inf, field, n = 1, starts = None):
daa3b76bd11f More abcfield.py updates and mark it Python 3.
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parents: 584
diff changeset
159 res = None
110
a63e39fc3410 Add basic diacritic handling for LaTeX and web.
Jim Hague <jim.hague@acm.org>
parents:
diff changeset
160 for line in inf:
a63e39fc3410 Add basic diacritic handling for LaTeX and web.
Jim Hague <jim.hague@acm.org>
parents:
diff changeset
161 line = line.strip()
581
760d0ae5acea Revise abcfield.py to recognise continuation fields.
Jim Hague <jim.hague@acm.org>
parents: 326
diff changeset
162 if len(line) > 2 and line[1] == ':':
586
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
163 if line[0] == "+" or (line[0] == field and line[2] == "+"):
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
164 if not res:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
165 continue
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
166 if line[0] == "+":
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
167 line = line[2:]
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
168 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
169 line = line[3:]
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
170 res = res + '\n' + line.strip()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
171 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
172 if res:
581
760d0ae5acea Revise abcfield.py to recognise continuation fields.
Jim Hague <jim.hague@acm.org>
parents: 326
diff changeset
173 break
586
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
174 if line[0] == field:
581
760d0ae5acea Revise abcfield.py to recognise continuation fields.
Jim Hague <jim.hague@acm.org>
parents: 326
diff changeset
175 line = line[2:].strip()
586
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
176 if starts:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
177 if line.find(starts) != 0:
581
760d0ae5acea Revise abcfield.py to recognise continuation fields.
Jim Hague <jim.hague@acm.org>
parents: 326
diff changeset
178 continue
586
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
179 line = line[len(starts):].strip()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
180 if n > 1:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
181 n = n - 1
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
182 continue
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
183 res = line
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
184 return res
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
185
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
186 # Return display text for a given field.
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
187 def getFieldDisplayText(inf, field, n = 1, starts = None, latex = False):
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
188 res = getFieldText(inf, field, n, starts)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
189 if res:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
190 if field.upper() == "T":
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
191 res = convertTitleToDisplay(res)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
192 elif field.upper() == "K":
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
193 res = convertKeyToDisplay(res)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
194 res = convertAccents(res, latex)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
195 return res
110
a63e39fc3410 Add basic diacritic handling for LaTeX and web.
Jim Hague <jim.hague@acm.org>
parents:
diff changeset
196
586
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
197 if __name__ == "__main__":
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
198 def process(inf, options):
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
199 if options.display:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
200 line = getFieldDisplayText(inf, options.field, options.index, options.starts, options.latex)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
201 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
202 line = getFieldText(inf, options.field, options.index, options.starts)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
203 if line:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
204 print(line)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
205 return True
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
206 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
207 return False
110
a63e39fc3410 Add basic diacritic handling for LaTeX and web.
Jim Hague <jim.hague@acm.org>
parents:
diff changeset
208
586
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
209 # execute only if run as a script
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
210 parser = optparse.OptionParser(usage="usage: %prog [options] [filename]\n\n"
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
211 " Extract field data from ABC file.")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
212 parser.add_option("-f", "--field", dest="field", default="T",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
213 help="extract the field FIELD", metavar="FIELD")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
214 parser.add_option("-l", "--latex", dest="latex",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
215 action="store_true", default=False,
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
216 help="convert special characters for LaTeX")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
217 parser.add_option("-d", "--display", dest="display",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
218 action="store_true", default=False,
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
219 help="convert to display text")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
220 parser.add_option("-n", "--index", dest="index",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
221 action="store", type="int", default=1,
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
222 help="report INDEXth value [default: %default]",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
223 metavar="INDEX")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
224 parser.add_option("-s", "--starts", dest="starts",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
225 action="store", type="string", default=None,
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
226 help="report only if line starts CONTENT and remove CONTENT",
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
227 metavar="CONTENT")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
228 (options, args) = parser.parse_args()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
229
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
230 res = False
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
231 if len(args) > 0:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
232 for arg in args:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
233 try:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
234 inf = open(arg, "r")
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
235 res = res or process(inf, options)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
236 finally:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
237 inf.close()
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
238 else:
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
239 res = process(sys.stdin, options)
daa3b76bd11f More abcfield.py updates and mark it Python 3.
Jim Hague <jim.hague@acm.org>
parents: 584
diff changeset
240 sys.exit(int(not res))