89 lines
2.8 KiB
Python
89 lines
2.8 KiB
Python
'''
|
|
WikiLinks Extension for Python-Markdown
|
|
======================================
|
|
|
|
Converts [[WikiLinks]] to relative links.
|
|
|
|
See <https://Python-Markdown.github.io/extensions/wikilinks>
|
|
for documentation.
|
|
|
|
Original code Copyright [Waylan Limberg](http://achinghead.com/).
|
|
|
|
All changes Copyright The Python Markdown Project
|
|
|
|
License: [BSD](http://www.opensource.org/licenses/bsd-license.php)
|
|
|
|
'''
|
|
|
|
from __future__ import absolute_import
|
|
from __future__ import unicode_literals
|
|
from . import Extension
|
|
from ..inlinepatterns import Pattern
|
|
from ..util import etree
|
|
import re
|
|
|
|
|
|
def build_url(label, base, end):
|
|
""" Build a url from the label, a base, and an end. """
|
|
clean_label = re.sub(r'([ ]+_)|(_[ ]+)|([ ]+)', '_', label)
|
|
return '%s%s%s' % (base, clean_label, end)
|
|
|
|
|
|
class WikiLinkExtension(Extension):
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
self.config = {
|
|
'base_url': ['/', 'String to append to beginning or URL.'],
|
|
'end_url': ['/', 'String to append to end of URL.'],
|
|
'html_class': ['wikilink', 'CSS hook. Leave blank for none.'],
|
|
'build_url': [build_url, 'Callable formats URL from label.'],
|
|
}
|
|
|
|
super(WikiLinkExtension, self).__init__(*args, **kwargs)
|
|
|
|
def extendMarkdown(self, md, md_globals):
|
|
self.md = md
|
|
|
|
# append to end of inline patterns
|
|
WIKILINK_RE = r'\[\[([\w0-9_ -]+)\]\]'
|
|
wikilinkPattern = WikiLinks(WIKILINK_RE, self.getConfigs())
|
|
wikilinkPattern.md = md
|
|
md.inlinePatterns.add('wikilink', wikilinkPattern, "<not_strong")
|
|
|
|
|
|
class WikiLinks(Pattern):
|
|
def __init__(self, pattern, config):
|
|
super(WikiLinks, self).__init__(pattern)
|
|
self.config = config
|
|
|
|
def handleMatch(self, m):
|
|
if m.group(2).strip():
|
|
base_url, end_url, html_class = self._getMeta()
|
|
label = m.group(2).strip()
|
|
url = self.config['build_url'](label, base_url, end_url)
|
|
a = etree.Element('a')
|
|
a.text = label
|
|
a.set('href', url)
|
|
if html_class:
|
|
a.set('class', html_class)
|
|
else:
|
|
a = ''
|
|
return a
|
|
|
|
def _getMeta(self):
|
|
""" Return meta data or config data. """
|
|
base_url = self.config['base_url']
|
|
end_url = self.config['end_url']
|
|
html_class = self.config['html_class']
|
|
if hasattr(self.md, 'Meta'):
|
|
if 'wiki_base_url' in self.md.Meta:
|
|
base_url = self.md.Meta['wiki_base_url'][0]
|
|
if 'wiki_end_url' in self.md.Meta:
|
|
end_url = self.md.Meta['wiki_end_url'][0]
|
|
if 'wiki_html_class' in self.md.Meta:
|
|
html_class = self.md.Meta['wiki_html_class'][0]
|
|
return base_url, end_url, html_class
|
|
|
|
|
|
def makeExtension(*args, **kwargs):
|
|
return WikiLinkExtension(*args, **kwargs)
|