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Simplify the LaTeX section (only three escapes are needed for alltt)

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Raymond Hettinger 2012-07-23 00:24:24 -05:00
parent 392bfd30af
commit d3f63d3661
1 changed files with 6 additions and 11 deletions
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17
Tools/scripts/highlight.py
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@ -57,7 +57,7 @@ def analyze_python(source):
if kind: if kind:
text, written = combine_range(lines, written, (srow, scol)) text, written = combine_range(lines, written, (srow, scol))
yield '', text yield '', text
text, written = combine_range(lines, written, (erow, ecol)) text, written = tok_str, (erow, ecol)
yield kind, text yield kind, text
line_upto_token, written = combine_range(lines, written, (erow, ecol)) line_upto_token, written = combine_range(lines, written, (erow, ecol))
yield '', line_upto_token yield '', line_upto_token
@ -172,15 +172,10 @@ default_latex_document = r'''
\end{document} \end{document}
''' '''
def latex_escape(s): def alltt_escape(s):
'Replace LaTeX special characters with their escaped equivalents' 'Replace backslash and braces with their escaped equivalents'
# http://en.wikibooks.org/wiki/LaTeX/Basics#Special_Characters xlat = {'{': r'\{', '}': r'\}', '\\': r'\textbackslash{}'}
xlat = { return re.sub(r'[\\{}]', lambda mo: xlat[mo.group()], s)
'#': r'\#', '$': r'\$', '%': r'\%', '^': r'\textasciicircum{}',
'&': r'\&', '_': r'\_', '{': r'\{', '}': r'\}', '~': r'\~{}',
'\\': r'\textbackslash{}',
}
return re.sub(r'[\\#$%^&_{}~]', lambda mo: xlat[mo.group()], s)
def latex_highlight(classified_text, title = 'python', def latex_highlight(classified_text, title = 'python',
commands = default_latex_commands, commands = default_latex_commands,
@ -191,7 +186,7 @@ def latex_highlight(classified_text, title = 'python',
for kind, text in classified_text: for kind, text in classified_text:
if kind: if kind:
result.append(r'\py%s{' % kind) result.append(r'\py%s{' % kind)
result.append(latex_escape(text)) result.append(alltt_escape(text))
if kind: if kind:
result.append('}') result.append('}')
return default_latex_document % dict(title=title, macros=macros, body=''.join(result)) return default_latex_document % dict(title=title, macros=macros, body=''.join(result))