mirror of https://github.com/python/cpython
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
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"""
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Escape the `body` part of .chm source file to 7-bit ASCII, to fix visual
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effect on some MBCS Windows systems.
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https://bugs.python.org/issue32174
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"""
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import re
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from html.entities import codepoint2name
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# escape the characters which codepoint > 0x7F
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def _process(string):
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def escape(matchobj):
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codepoint = ord(matchobj.group(0))
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name = codepoint2name.get(codepoint)
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if name is None:
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return '&#%d;' % codepoint
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else:
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return '&%s;' % name
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return re.sub(r'[^\x00-\x7F]', escape, string)
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def escape_for_chm(app, pagename, templatename, context, doctree):
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# only works for .chm output
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if not hasattr(app.builder, 'name') or app.builder.name != 'htmlhelp':
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return
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# escape the `body` part to 7-bit ASCII
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body = context.get('body')
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if body is not None:
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context['body'] = _process(body)
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def setup(app):
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# `html-page-context` event emitted when the HTML builder has
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# created a context dictionary to render a template with.
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app.connect('html-page-context', escape_for_chm)
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return {'version': '1.0', 'parallel_read_safe': True}
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