Revert 243980 "Docserver: Support markdown for HTML content."

trunk/src/third_party/markdown/extensions/abbr.py

-'''
-Abbreviation Extension for Python-Markdown
-==========================================
-
-This extension adds abbreviation handling to Python-Markdown.
-
-Simple Usage:
-
-    >>> import markdown
-    >>> text = """
-    ... Some text with an ABBR and a REF. Ignore REFERENCE and ref.
-    ...
-    ... *[ABBR]: Abbreviation
-    ... *[REF]: Abbreviation Reference
-    ... """
-    >>> print markdown.markdown(text, ['abbr'])
-    <p>Some text with an <abbr title="Abbreviation">ABBR</abbr> and a <abbr title="Abbreviation Reference">REF</abbr>. Ignore REFERENCE and ref.</p>
-
-Copyright 2007-2008
-* [Waylan Limberg](http://achinghead.com/)
-* [Seemant Kulleen](http://www.kulleen.org/)
-        
-
-'''
-
-from __future__ import absolute_import
-from __future__ import unicode_literals
-from . import Extension
-from ..preprocessors import Preprocessor
-from ..inlinepatterns import Pattern
-from ..util import etree
-import re
-
-# Global Vars
-ABBR_REF_RE = re.compile(r'[*]\[(?P<abbr>[^\]]*)\][ ]?:\s*(?P<title>.*)')
-
-class AbbrExtension(Extension):
-    """ Abbreviation Extension for Python-Markdown. """
-
-    def extendMarkdown(self, md, md_globals):
-        """ Insert AbbrPreprocessor before ReferencePreprocessor. """
-        md.preprocessors.add('abbr', AbbrPreprocessor(md), '<reference')
-        
-           
-class AbbrPreprocessor(Preprocessor):
-    """ Abbreviation Preprocessor - parse text for abbr references. """
-
-    def run(self, lines):
-        '''
-        Find and remove all Abbreviation references from the text.
-        Each reference is set as a new AbbrPattern in the markdown instance.
-        
-        '''
-        new_text = []
-        for line in lines:
-            m = ABBR_REF_RE.match(line)
-            if m:
-                abbr = m.group('abbr').strip()
-                title = m.group('title').strip()
-                self.markdown.inlinePatterns['abbr-%s'%abbr] = \
-                    AbbrPattern(self._generate_pattern(abbr), title)
-            else:
-                new_text.append(line)
-        return new_text
-    
-    def _generate_pattern(self, text):
-        '''
-        Given a string, returns an regex pattern to match that string. 
-        
-        'HTML' -> r'(?P<abbr>[H][T][M][L])' 
-        
-        Note: we force each char as a literal match (in brackets) as we don't 
-        know what they will be beforehand.
-
-        '''
-        chars = list(text)
-        for i in range(len(chars)):
-            chars[i] = r'[%s]' % chars[i]
-        return r'(?P<abbr>\b%s\b)' % (r''.join(chars))
-
-
-class AbbrPattern(Pattern):
-    """ Abbreviation inline pattern. """
-
-    def __init__(self, pattern, title):
-        super(AbbrPattern, self).__init__(pattern)
-        self.title = title
-
-    def handleMatch(self, m):
-        abbr = etree.Element('abbr')
-        abbr.text = m.group('abbr')
-        abbr.set('title', self.title)
-        return abbr
-
-def makeExtension(configs=None):
-    return AbbrExtension(configs=configs)