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Diffstat (limited to 'mdx_headerid.py')
| -rw-r--r-- | mdx_headerid.py | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/mdx_headerid.py b/mdx_headerid.py deleted file mode 100644 index 2360071..0000000 --- a/mdx_headerid.py +++ /dev/null @@ -1,175 +0,0 @@ -#!/usr/bin/python - -""" -HeaderID Extension for Python-Markdown -====================================== - -Adds ability to set HTML IDs for headers. - -Basic usage: - - >>> import markdown - >>> text = "# Some Header # {#some_id}" - >>> md = markdown.markdown(text, ['headerid']) - >>> md - u'<h1 id="some_id">Some Header</h1>' - -All header IDs are unique: - - >>> text = ''' - ... #Header - ... #Another Header {#header} - ... #Third Header {#header}''' - >>> md = markdown.markdown(text, ['headerid']) - >>> md - u'<h1 id="header">Header</h1>\\n\\n<h1 id="header_1">Another Header</h1>\\n\\n<h1 id="header_2">Third Header</h1>' - -To fit within a html template's hierarchy, set the header base level: - - >>> text = ''' - ... #Some Header - ... ## Next Level''' - >>> md = markdown.markdown(text, ['headerid(level=3)']) - >>> md - u'<h3 id="some_header">Some Header</h3>\\n\\n<h4 id="next_level">Next Level</h4>' - -Turn off auto generated IDs: - - >>> text = ''' - ... # Some Header - ... # Header with ID # { #foo }''' - >>> md = markdown.markdown(text, ['headerid(forceid=False)']) - >>> md - u'<h1>Some Header</h1>\\n\\n<h1 id="foo">Header with ID</h1>' - -Use with MetaData extension: - - >>> text = '''header_level: 2 - ... header_forceid: Off - ... - ... # A Header''' - >>> md = markdown.markdown(text, ['headerid', 'meta']) - >>> md - u'<h2>A Header</h2>' - -By [Waylan Limberg](http://achinghead.com/). - -Project website: http://achinghead.com/markdown-headerid/ -Contact: waylan [at] gmail [dot] com - -License: [BSD](http://www.opensource.org/licenses/bsd-license.php) - -Version: 0.1 (May 2, 2008) - -Dependencies: -* [Python 2.3+](http://python.org) -* [Markdown 1.7+](http://www.freewisdom.org/projects/python-markdown/) - -""" - -import markdown -from markdown import etree -import re -from string import ascii_lowercase, digits, punctuation - -ID_CHARS = ascii_lowercase + digits + '-_' - -HEADER_RE = re.compile(r'''^(\#{1,6}) # group(1) = string of hashes - ( [^{^#]*) # group(2) = Header text - [\#]* # optional closing hashes (not counted) - (?:[ \t]*\{[ \t]*\#([-_:a-zA-Z0-9]+)[ \t]*\})? # group(3) = id attr''', - re.VERBOSE) - -IDCOUNT_RE = re.compile(r'^(.*)_([0-9]+)$') - -class HeaderIdExtension (markdown.Extension) : - def __init__(self, configs): - # set defaults - self.config = { - 'level' : ['1', 'Base level for headers.'], - 'forceid' : ['True', 'Force all headers to have an id.'] - } - - for key, value in configs: - self.setConfig(key, value) - - - def extendMarkdown(self, md, md_globals) : - - md.IDs = [] - - def _processHeaderId(parent_elem, paragraph) : - ''' - Overrides _processHeader of Markdown() and - adds an 'id' to the header. - ''' - m = HEADER_RE.match(paragraph[0]) - if m : - start_level, force_id = _get_meta() - level = len(m.group(1)) + start_level - if level > 6: - level = 6 - h = etree.Element("h%d" % level) - parent_elem.append(h) - inline = etree.SubElement(h, "inline") - inline.text = m.group(2).strip() - if m.group(3) : - h.set('id', _unique_id(m.group(3))) - elif force_id: - h.set('id', _create_id(m.group(2).strip())) - else : - message(CRITICAL, "We've got a problem header!") - - md._processHeader = _processHeaderId - - def _get_meta(): - ''' Return meta data suported by this ext as a tuple ''' - level = int(self.config['level'][0]) - 1 - force = _str2bool(self.config['forceid'][0]) - if hasattr(md, 'Meta'): - if md.Meta.has_key('header_level'): - level = int(md.Meta['header_level'][0]) - 1 - if md.Meta.has_key('header_forceid'): - force = _str2bool(md.Meta['header_forceid'][0]) - return level, force - - def _str2bool(s, default=False): - ''' Convert a string to a booleen value. ''' - s = str(s) - if s.lower() in ['0', 'f', 'false', 'off', 'no', 'n']: - return False - elif s.lower() in ['1', 't', 'true', 'on', 'yes', 'y']: - return True - return default - - def _unique_id(id): - ''' Ensure ID is unique. Append '_1', '_2'... if not ''' - while id in md.IDs: - m = IDCOUNT_RE.match(id) - if m: - id = '%s_%d'% (m.group(1), int(m.group(2))+1) - else: - id = '%s_%d'% (id, 1) - md.IDs.append(id) - return id - - - def _create_id(header): - ''' Return ID from Header text. ''' - h = '' - for c in header.lower().replace(' ', '_'): - if c in ID_CHARS: - h += c - elif c not in punctuation: - h += '+' - return _unique_id(h) - - - -def makeExtension(configs=None) : - return HeaderIdExtension(configs=configs) - -if __name__ == "__main__": - import doctest - doctest.testmod() - |