Varia's website
https://varia.zone
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.5 KiB
67 lines
2.5 KiB
"""
|
|
Python Markdown
|
|
|
|
A Python implementation of John Gruber's Markdown.
|
|
|
|
Documentation: https://python-markdown.github.io/
|
|
GitHub: https://github.com/Python-Markdown/markdown/
|
|
PyPI: https://pypi.org/project/Markdown/
|
|
|
|
Started by Manfred Stienstra (http://www.dwerg.net/).
|
|
Maintained for a few years by Yuri Takhteyev (http://www.freewisdom.org).
|
|
Currently maintained by Waylan Limberg (https://github.com/waylan),
|
|
Dmitry Shachnev (https://github.com/mitya57) and Isaac Muse (https://github.com/facelessuser).
|
|
|
|
Copyright 2007-2018 The Python Markdown Project (v. 1.7 and later)
|
|
Copyright 2004, 2005, 2006 Yuri Takhteyev (v. 0.2-1.6b)
|
|
Copyright 2004 Manfred Stienstra (the original version)
|
|
|
|
License: BSD (see LICENSE.md for details).
|
|
|
|
Legacy Attributes Extension
|
|
===========================
|
|
|
|
An extension to Python Markdown which implements legacy attributes.
|
|
|
|
Prior to Python-Markdown version 3.0, the Markdown class had an `enable_attributes`
|
|
keyword which was on by default and provided for attributes to be defined for elements
|
|
using the format `{@key=value}`. This extension is provided as a replacement for
|
|
backward compatability. New documents should be authored using attr_lists. However,
|
|
numerious documents exist which have been using the old attribute format for many
|
|
years. This extension can be used to continue to render those documents correctly.
|
|
"""
|
|
|
|
import re
|
|
from markdown.treeprocessors import Treeprocessor, isString
|
|
from markdown.extensions import Extension
|
|
|
|
|
|
ATTR_RE = re.compile(r'\{@([^\}]*)=([^\}]*)}') # {@id=123}
|
|
|
|
|
|
class LegacyAttrs(Treeprocessor):
|
|
def run(self, doc):
|
|
"""Find and set values of attributes ({@key=value}). """
|
|
for el in doc.iter():
|
|
alt = el.get('alt', None)
|
|
if alt is not None:
|
|
el.set('alt', self.handleAttributes(el, alt))
|
|
if el.text and isString(el.text):
|
|
el.text = self.handleAttributes(el, el.text)
|
|
if el.tail and isString(el.tail):
|
|
el.tail = self.handleAttributes(el, el.tail)
|
|
|
|
def handleAttributes(self, el, txt):
|
|
""" Set attributes and return text without definitions. """
|
|
def attributeCallback(match):
|
|
el.set(match.group(1), match.group(2).replace('\n', ' '))
|
|
return ATTR_RE.sub(attributeCallback, txt)
|
|
|
|
|
|
class LegacyAttrExtension(Extension):
|
|
def extendMarkdown(self, md):
|
|
md.treeprocessors.register(LegacyAttrs(md), 'legacyattrs', 15)
|
|
|
|
|
|
def makeExtension(**kwargs): # pragma: no cover
|
|
return LegacyAttrExtension(**kwargs)
|
|
|