Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/docutils/utils/math/tex2mathml_extern.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 #!/usr/bin/env python |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # :Id: $Id: tex2mathml_extern.py 8376 2019-08-27 19:49:29Z milde $ |
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5 # :Copyright: © 2015 Günter Milde. |
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6 # :License: Released under the terms of the `2-Clause BSD license`_, in short: |
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7 # |
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8 # Copying and distribution of this file, with or without modification, |
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9 # are permitted in any medium without royalty provided the copyright |
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10 # notice and this notice are preserved. |
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11 # This file is offered as-is, without any warranty. |
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12 # |
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13 # .. _2-Clause BSD license: http://www.spdx.org/licenses/BSD-2-Clause |
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14 |
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15 # Wrappers for TeX->MathML conversion by external tools |
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16 # ===================================================== |
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17 |
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18 from __future__ import print_function |
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19 import subprocess |
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20 |
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21 document_template = r"""\documentclass{article} |
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22 \usepackage{amsmath} |
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23 \begin{document} |
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24 %s |
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25 \end{document} |
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26 """ |
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27 |
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28 def latexml(math_code, reporter=None): |
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29 """Convert LaTeX math code to MathML with LaTeXML_ |
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30 |
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31 .. _LaTeXML: http://dlmf.nist.gov/LaTeXML/ |
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32 """ |
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33 p = subprocess.Popen(['latexml', |
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34 '-', # read from stdin |
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35 # '--preload=amsmath', |
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36 '--inputencoding=utf8', |
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37 ], |
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38 stdin=subprocess.PIPE, |
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39 stdout=subprocess.PIPE, |
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40 stderr=subprocess.PIPE, |
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41 close_fds=True) |
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42 p.stdin.write((document_template % math_code).encode('utf8')) |
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43 p.stdin.close() |
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44 latexml_code = p.stdout.read() |
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45 latexml_err = p.stderr.read().decode('utf8') |
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46 if reporter and (latexml_err.find('Error') >= 0 or not latexml_code): |
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47 reporter.error(latexml_err) |
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48 |
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49 post_p = subprocess.Popen(['latexmlpost', |
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50 '-', |
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51 '--nonumbersections', |
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52 '--format=xhtml', |
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53 # '--linelength=78', # experimental |
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54 '--' |
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55 ], |
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56 stdin=subprocess.PIPE, |
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57 stdout=subprocess.PIPE, |
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58 stderr=subprocess.PIPE, |
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59 close_fds=True) |
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60 post_p.stdin.write(latexml_code) |
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61 post_p.stdin.close() |
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62 result = post_p.stdout.read().decode('utf8') |
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63 post_p_err = post_p.stderr.read().decode('utf8') |
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64 if reporter and (post_p_err.find('Error') >= 0 or not result): |
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65 reporter.error(post_p_err) |
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66 |
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67 # extract MathML code: |
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68 start, end = result.find('<math'), result.find('</math>')+7 |
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69 result = result[start:end] |
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70 if 'class="ltx_ERROR' in result: |
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71 raise SyntaxError(result) |
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72 return result |
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73 |
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74 def ttm(math_code, reporter=None): |
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75 """Convert LaTeX math code to MathML with TtM_ |
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76 |
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77 .. _TtM: http://hutchinson.belmont.ma.us/tth/mml/ |
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78 """ |
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79 p = subprocess.Popen(['ttm', |
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80 # '-i', # italic font for equations. Default roman. |
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81 '-u', # unicode character encoding. (Default iso-8859-1). |
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82 '-r', # output raw MathML (no preamble or postlude) |
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83 ], |
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84 stdin=subprocess.PIPE, |
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85 stdout=subprocess.PIPE, |
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86 stderr=subprocess.PIPE, |
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87 close_fds=True) |
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88 p.stdin.write((document_template % math_code).encode('utf8')) |
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89 p.stdin.close() |
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90 result = p.stdout.read() |
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91 err = p.stderr.read().decode('utf8') |
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92 if err.find('**** Unknown') >= 0: |
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93 msg = '\n'.join([line for line in err.splitlines() |
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94 if line.startswith('****')]) |
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95 raise SyntaxError('\nMessage from external converter TtM:\n'+ msg) |
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96 if reporter and err.find('**** Error') >= 0 or not result: |
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97 reporter.error(err) |
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98 start, end = result.find('<math'), result.find('</math>')+7 |
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99 result = result[start:end] |
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100 return result |
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101 |
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102 def blahtexml(math_code, inline=True, reporter=None): |
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103 """Convert LaTeX math code to MathML with blahtexml_ |
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104 |
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105 .. _blahtexml: http://gva.noekeon.org/blahtexml/ |
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106 """ |
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107 options = ['--mathml', |
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108 '--indented', |
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109 '--spacing', 'moderate', |
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110 '--mathml-encoding', 'raw', |
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111 '--other-encoding', 'raw', |
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112 '--doctype-xhtml+mathml', |
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113 '--annotate-TeX', |
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114 ] |
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115 if inline: |
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116 mathmode_arg = '' |
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117 else: |
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118 mathmode_arg = 'mode="display"' |
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119 options.append('--displaymath') |
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120 |
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121 p = subprocess.Popen(['blahtexml']+options, |
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122 stdin=subprocess.PIPE, |
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123 stdout=subprocess.PIPE, |
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124 stderr=subprocess.PIPE, |
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125 close_fds=True) |
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126 p.stdin.write(math_code.encode('utf8')) |
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127 p.stdin.close() |
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128 result = p.stdout.read().decode('utf8') |
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129 err = p.stderr.read().decode('utf8') |
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130 |
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131 if result.find('<error>') >= 0: |
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132 raise SyntaxError('\nMessage from external converter blahtexml:\n' |
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133 +result[result.find('<message>')+9:result.find('</message>')]) |
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134 if reporter and (err.find('**** Error') >= 0 or not result): |
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135 reporter.error(err) |
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136 start, end = result.find('<markup>')+9, result.find('</markup>') |
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137 result = ('<math xmlns="http://www.w3.org/1998/Math/MathML"%s>\n' |
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138 '%s</math>\n') % (mathmode_arg, result[start:end]) |
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139 return result |
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140 |
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141 # self-test |
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142 |
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143 if __name__ == "__main__": |
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144 example = (u'\\frac{\\partial \\sin^2(\\alpha)}{\\partial \\vec r}' |
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145 u'\\varpi \\, \\text{Grüße}') |
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146 # print(latexml(example).encode('utf8')) |
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147 # print(ttm(example)) |
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148 print(blahtexml(example).encode('utf8')) |