58 lines
1.6 KiB
Python
58 lines
1.6 KiB
Python
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# -*- coding: utf-8 -*-
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import re
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import htmlentitydefs
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RE = {
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'space': re.compile('[ ]{2,}', re.U | re.S),
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'cl': re.compile('[\n]{2,}', re.U | re.S),
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'br': re.compile('<\s*br[\s/]*>', re.U | re.S),
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'inner': re.compile('<[^>]*>[^<]+<\s*/[^>]*>', re.U | re.S),
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'html': re.compile('<[^>]*>', re.U | re.S),
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'entity': re.compile('&#?\w+;', re.U)
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}
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UNSUPPORT = {
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'—': '-'
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}
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class Clear:
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def text(self, text, inner=False):
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text = self._unsupport(text).replace(u'\r', u'\n')
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text = RE['br'].sub(u'\n', text)
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if inner:
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text = RE['inner'].sub(u'', text)
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text = RE['html'].sub(u'', text)
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text = self.char(text)
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text = RE['space'].sub(u' ', text)
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return RE['cl'].sub(u'\n', text).strip()
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def string(self, text, space=u''):
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return self.text(text).replace(u'\n', space).strip()
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def char(self, text):
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return RE['entity'].sub(self._unescape, self._unsupport(text))
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def _unsupport(self, text):
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for tag, value in UNSUPPORT.iteritems():
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text = text.replace(tag, value)
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return text
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def _unescape(self, m):
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text = m.group(0)
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if text[:2] == u"&#":
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try:
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if text[:3] == u"&#x":
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return unichr(int(text[3:-1], 16))
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else:
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return unichr(int(text[2:-1]))
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except ValueError:
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pass
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else:
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try:
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text = unichr(htmlentitydefs.name2codepoint[text[1:-1]])
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except KeyError:
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pass
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return text
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