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annotate abcfield.py @ 584:696c461c8dc0

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Set exit status on abcfield.py to indicate if anything found.
author Jim Hague <jim.hague@acm.org>
date Sat, 29 Oct 2016 23:18:45 +0100
parents 760d0ae5acea
children daa3b76bd11f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/usr/bin/env python
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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 # Recognise continuation fields and print those too.
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6 #
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7
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8 import optparse
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9 import sys
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10
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11 accentedletters = {
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12 # Acute accents
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13 "'A" : ("&Aacute;", "\\'{A}"),
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14 "'E" : ("&Eacute;", "\\'{E}"),
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15 "'I" : ("&Iacute;", "\\'{I}"),
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16 "'O" : ("&Oacute;", "\\'{O}"),
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17 "'U" : ("&Uacute;", "\\'{U}"),
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18 "'Y" : ("&Yacute;", "\\'{Y}"),
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19 "'a" : ("&aacute;", "\\'{a}"),
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20 "'e" : ("&eacute;", "\\'{e}"),
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21 "'i" : ("&iacute;", "\\'{i}"),
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22 "'o" : ("&oacute;", "\\'{o}"),
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23 "'u" : ("&uacute;", "\\'{u}"),
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24 "'y" : ("&yacute;", "\\'{y}"),
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25
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26 # Grave accents
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27 "`A" : ("&Agrave;", "\\`{A}"),
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28 "`E" : ("&Egrave;", "\\`{E}"),
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29 "`I" : ("&Igrave;", "\\`{I}"),
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30 "`O" : ("&Ograve;", "\\`{O}"),
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31 "`U" : ("&Ugrave;", "\\`{U}"),
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32 "`a" : ("&agrave;", "\\`{a}"),
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33 "`e" : ("&egrave;", "\\`{e}"),
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34 "`i" : ("&igrave;", "\\`{i}"),
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35 "`o" : ("&ograve;", "\\`{o}"),
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36 "`u" : ("&ugrave;", "\\`{u}"),
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37
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38 # Umlauts
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39 "\"A" : ("&Auml;", "\\\"{A}"),
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40 "\"E" : ("&Euml;", "\\\"{E}"),
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41 "\"I" : ("&Iuml;", "\\\"{I}"),
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42 "\"O" : ("&Ouml;", "\\\"{O}"),
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43 "\"U" : ("&Uuml;", "\\\"{U}"),
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44 "\"Y" : ("&Yuml;", "\\\"{Y}"),
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45 "\"a" : ("&auml;", "\\\"{a}"),
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46 "\"e" : ("&euml;", "\\\"{e}"),
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47 "\"i" : ("&iuml;", "\\\"{\i}"),
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48 "\"o" : ("&ouml;", "\\\"{o}"),
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49 "\"u" : ("&uuml;", "\\\"{u}"),
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50 "\"y" : ("&yuml;", "\\\"{y}"),
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51
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52 # Circumflexes
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53 "^A" : ("&Acirc;", "\\^{A}"),
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54 "^E" : ("&Ecirc;", "\\^{E}"),
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55 "^I" : ("&Icirc;", "\\^{I}"),
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56 "^O" : ("&Ocirc;", "\\^{O}"),
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57 "^U" : ("&Ucirc;", "\\^{U}"),
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58 "^a" : ("&acirc;", "\\^{a}"),
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59 "^e" : ("&ecirc;", "\\^{e}"),
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60 "^i" : ("&icirc;", "\\^{\i}"),
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61 "^o" : ("&ocirc;", "\\^{o}"),
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62 "^u" : ("&ucirc;", "\\^{u}"),
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63
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64 # Tilde
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65 "~A" : ("&Atilde;", "\\~{A}"),
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66 "~N" : ("&Ntilde;", "\\~{N}"),
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67 "~O" : ("&Otilde;", "\\~{O}"),
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68 "~a" : ("&atilde;", "\\~{a}"),
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69 "~n" : ("&ntilde;", "\\~{n}"),
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70 "~o" : ("&otilde;", "\\~{o}"),
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71
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72 # Cedilla
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73 ",C" : ("&Ccedil;", "\\c{C}"),
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74 ",c" : ("&ccedil;", "\\c{c}"),
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75
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76 # Slash
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77 "/O" : ("&Oslash;", "\\O"),
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78 "/o" : ("&oslash;", "\\o"),
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79
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80 # Ring
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81 "AA" : ("&Aring;", "\\r{A}"),
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82 "aa" : ("&aring;", "\\r{a}"),
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83
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84 # Ligatures
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85 "AE" : ("&AElig;", "\\AE"),
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86 "ae" : ("&aelig;", "\\ae"),
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87 "ss" : ("&szlig;", "\\ss"),
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88 }
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89
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90 def convertField(t, options):
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91 res = ""
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92 while True:
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93 p = t.partition('\\')
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94 res += p[0]
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95 if p[1] == "":
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96 break
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97 abc = p[2][0:2]
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98 t = p[2][2:]
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99 if abc in accentedletters:
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100 if options.html:
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101 res += accentedletters[abc][0]
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102 else:
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103 res += accentedletters[abc][1]
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104 else:
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105 res += "\\" + abc
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106 return res
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107
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108 def process(inf, options):
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109 n = options.index
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110 found = False
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111 for line in inf:
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112 line = line.strip()
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113 if len(line) > 2 and line[1] == ':':
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114 if found:
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115 if line[0] != '+':
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116 break
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117 line = line[2:].strip()
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118 elif line[0] == options.field:
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119 if n > 1:
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120 n = n - 1
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121 continue
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122 else:
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123 line = line[2:].strip()
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124 if len(options.starts) > 0:
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125 if line.find(options.starts) == 0:
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126 line = line[len(options.starts):].strip()
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127 else:
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128 continue
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129 else:
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130 continue
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131 found = True
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132 print(convertField(line, options))
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133 return found
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134
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135 parser = optparse.OptionParser(usage="usage: %prog [options] [filename]\n\n"
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136 " Extract field data from ABC file.")
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137 parser.add_option("-f", "--field", dest="field", default="T",
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138 help="extract the field FIELD", metavar="FIELD")
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139 parser.add_option("-l", "--latex", dest="latex",
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140 action="store_true", default=False,
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141 help="convert special characters for LaTeX")
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142 parser.add_option("-n", "--index", dest="index",
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143 action="store", type="int", default=1,
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144 help="report INDEXth value [default: %default]",
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145 metavar="INDEX")
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146 parser.add_option("-s", "--starts", dest="starts",
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147 action="store", type="string", default="",
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148 help="report only if line starts CONTENT and remove CONTENT",
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149 metavar="CONTENT")
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150 (options, args) = parser.parse_args()
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151
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152 res = False
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153 if len(args) > 0:
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154 for arg in args:
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155 try:
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156 inf = open(arg, "r")
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157 res = res or process(inf, options)
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158 finally:
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159 inf.close()
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160 else:
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161 res = process(sys.stdin, options)
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162 sys.exit(int(not res))