feat(ST2.EditorPackages): bump up all packages
- Refresh PackageCache with latest versions of everything
This commit is contained in:
Iristyle
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Copyright 2007, 2008 The Python Markdown Project (v. 1.7 and later)
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Copyright 2004, 2005, 2006 Yuri Takhteyev (v. 0.2-1.6b)
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Copyright 2004 Manfred Stienstra (the original version)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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||||
notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
|
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
|
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE PYTHON MARKDOWN PROJECT ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL ANY CONTRIBUTORS TO THE PYTHON MARKDOWN PROJECT
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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@@ -0,0 +1,30 @@
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[Python-Markdown][]
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===================
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This is a Python implementation of John Gruber's [Markdown][].
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It is almost completely compliant with the reference implementation,
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though there are a few known issues. See [Features][] for information
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on what exactly is supported and what is not. Additional features are
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supported by the [Available Extensions][].
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[Python-Markdown]: http://packages.python.org/Markdown/
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[Markdown]: http://daringfireball.net/projects/markdown/
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[Features]: http://packages.python.org/Markdown/index.html#Features
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[Available Extensions]: http://packages.python.org/Markdown/extensions/index.html
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Documentation
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-------------
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Installation and usage documentation is available in the `docs/` directory
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of the distribution and on the project website at
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<http://packages.python.org/Markdown/>.
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Support
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-------
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You may ask for help and discuss various other issues on the [mailing list][] and report bugs on the [bug tracker][].
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[mailing list]: http://lists.sourceforge.net/lists/listinfo/python-markdown-discuss
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[bug tracker]: http://github.com/waylan/Python-Markdown/issues
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@@ -0,0 +1,448 @@
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"""
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Python Markdown
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===============
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Python Markdown converts Markdown to HTML and can be used as a library or
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called from the command line.
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## Basic usage as a module:
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import markdown
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html = markdown.markdown(your_text_string)
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See <http://packages.python.org/Markdown/> for more
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information and instructions on how to extend the functionality of
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Python Markdown. Read that before you try modifying this file.
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## Authors and License
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Started by [Manfred Stienstra](http://www.dwerg.net/). Continued and
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maintained by [Yuri Takhteyev](http://www.freewisdom.org), [Waylan
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Limberg](http://achinghead.com/) and [Artem Yunusov](http://blog.splyer.com).
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Contact: markdown@freewisdom.org
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Copyright 2007-2013 The Python Markdown Project (v. 1.7 and later)
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Copyright 200? Django Software Foundation (OrderedDict implementation)
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Copyright 2004, 2005, 2006 Yuri Takhteyev (v. 0.2-1.6b)
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Copyright 2004 Manfred Stienstra (the original version)
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License: BSD (see LICENSE for details).
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"""
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from __future__ import absolute_import
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from __future__ import unicode_literals
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from .__version__ import version, version_info
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import re
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import codecs
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import sys
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import logging
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from . import util
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from .preprocessors import build_preprocessors
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from .blockprocessors import build_block_parser
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from .treeprocessors import build_treeprocessors
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from .inlinepatterns import build_inlinepatterns
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from .postprocessors import build_postprocessors
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from .extensions import Extension
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from .serializers import to_html_string, to_xhtml_string
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__all__ = ['Markdown', 'markdown', 'markdownFromFile']
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logger = logging.getLogger('MARKDOWN')
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class Markdown(object):
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"""Convert Markdown to HTML."""
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doc_tag = "div" # Element used to wrap document - later removed
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option_defaults = {
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'html_replacement_text' : '[HTML_REMOVED]',
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'tab_length' : 4,
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'enable_attributes' : True,
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'smart_emphasis' : True,
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'lazy_ol' : True,
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}
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output_formats = {
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'html' : to_html_string,
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'html4' : to_html_string,
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'html5' : to_html_string,
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'xhtml' : to_xhtml_string,
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'xhtml1': to_xhtml_string,
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'xhtml5': to_xhtml_string,
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}
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ESCAPED_CHARS = ['\\', '`', '*', '_', '{', '}', '[', ']',
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'(', ')', '>', '#', '+', '-', '.', '!']
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def __init__(self, *args, **kwargs):
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"""
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Creates a new Markdown instance.
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Keyword arguments:
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* extensions: A list of extensions.
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If they are of type string, the module mdx_name.py will be loaded.
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If they are a subclass of markdown.Extension, they will be used
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as-is.
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* extension_configs: Configuration settingis for extensions.
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* output_format: Format of output. Supported formats are:
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* "xhtml1": Outputs XHTML 1.x. Default.
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* "xhtml5": Outputs XHTML style tags of HTML 5
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* "xhtml": Outputs latest supported version of XHTML (currently XHTML 1.1).
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* "html4": Outputs HTML 4
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* "html5": Outputs HTML style tags of HTML 5
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* "html": Outputs latest supported version of HTML (currently HTML 4).
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Note that it is suggested that the more specific formats ("xhtml1"
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and "html4") be used as "xhtml" or "html" may change in the future
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if it makes sense at that time.
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* safe_mode: Disallow raw html. One of "remove", "replace" or "escape".
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* html_replacement_text: Text used when safe_mode is set to "replace".
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* tab_length: Length of tabs in the source. Default: 4
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* enable_attributes: Enable the conversion of attributes. Default: True
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* smart_emphasis: Treat `_connected_words_` intelegently Default: True
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* lazy_ol: Ignore number of first item of ordered lists. Default: True
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"""
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# For backward compatibility, loop through old positional args
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pos = ['extensions', 'extension_configs', 'safe_mode', 'output_format']
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c = 0
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for arg in args:
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if pos[c] not in kwargs:
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kwargs[pos[c]] = arg
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c += 1
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if c == len(pos):
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# ignore any additional args
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break
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# Loop through kwargs and assign defaults
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for option, default in self.option_defaults.items():
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setattr(self, option, kwargs.get(option, default))
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self.safeMode = kwargs.get('safe_mode', False)
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if self.safeMode and 'enable_attributes' not in kwargs:
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# Disable attributes in safeMode when not explicitly set
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self.enable_attributes = False
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self.registeredExtensions = []
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self.docType = ""
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self.stripTopLevelTags = True
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self.build_parser()
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self.references = {}
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self.htmlStash = util.HtmlStash()
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self.set_output_format(kwargs.get('output_format', 'xhtml1'))
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self.registerExtensions(extensions=kwargs.get('extensions', []),
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configs=kwargs.get('extension_configs', {}))
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self.reset()
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def build_parser(self):
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""" Build the parser from the various parts. """
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self.preprocessors = build_preprocessors(self)
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self.parser = build_block_parser(self)
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self.inlinePatterns = build_inlinepatterns(self)
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self.treeprocessors = build_treeprocessors(self)
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self.postprocessors = build_postprocessors(self)
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return self
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def registerExtensions(self, extensions, configs):
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"""
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Register extensions with this instance of Markdown.
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Keyword arguments:
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* extensions: A list of extensions, which can either
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be strings or objects. See the docstring on Markdown.
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* configs: A dictionary mapping module names to config options.
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"""
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for ext in extensions:
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if isinstance(ext, util.string_type):
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ext = self.build_extension(ext, configs.get(ext, []))
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if isinstance(ext, Extension):
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ext.extendMarkdown(self, globals())
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elif ext is not None:
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raise TypeError(
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'Extension "%s.%s" must be of type: "markdown.Extension"'
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% (ext.__class__.__module__, ext.__class__.__name__))
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return self
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def build_extension(self, ext_name, configs = []):
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"""Build extension by name, then return the module.
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The extension name may contain arguments as part of the string in the
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following format: "extname(key1=value1,key2=value2)"
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"""
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# Parse extensions config params (ignore the order)
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configs = dict(configs)
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pos = ext_name.find("(") # find the first "("
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if pos > 0:
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ext_args = ext_name[pos+1:-1]
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ext_name = ext_name[:pos]
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pairs = [x.split("=") for x in ext_args.split(",")]
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configs.update([(x.strip(), y.strip()) for (x, y) in pairs])
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# Setup the module name
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module_name = ext_name
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if '.' not in ext_name:
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import sublime
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if sublime.version() >= '3000':
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from ..helper import INSTALLED_DIRECTORY
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module_name = '.'.join([INSTALLED_DIRECTORY, 'markdown.extensions', ext_name])
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else:
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module_name = '.'.join(['markdown.extensions', ext_name])
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# Try loading the extension first from one place, then another
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try: # New style (markdown.extensons.<extension>)
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module = __import__(module_name, {}, {}, [module_name.rpartition('.')[0]])
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except ImportError:
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module_name_old_style = '_'.join(['mdx', ext_name])
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try: # Old style (mdx_<extension>)
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module = __import__(module_name_old_style)
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except ImportError as e:
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message = "Failed loading extension '%s' from '%s' or '%s'" \
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% (ext_name, module_name, module_name_old_style)
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e.args = (message,) + e.args[1:]
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raise
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# If the module is loaded successfully, we expect it to define a
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# function called makeExtension()
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try:
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return module.makeExtension(configs.items())
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except AttributeError as e:
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message = e.args[0]
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message = "Failed to initiate extension " \
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"'%s': %s" % (ext_name, message)
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e.args = (message,) + e.args[1:]
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raise
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def registerExtension(self, extension):
|
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""" This gets called by the extension """
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self.registeredExtensions.append(extension)
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return self
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def reset(self):
|
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"""
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Resets all state variables so that we can start with a new text.
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"""
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self.htmlStash.reset()
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self.references.clear()
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|
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for extension in self.registeredExtensions:
|
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if hasattr(extension, 'reset'):
|
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extension.reset()
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||||
|
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return self
|
||||
|
||||
def set_output_format(self, format):
|
||||
""" Set the output format for the class instance. """
|
||||
self.output_format = format.lower()
|
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try:
|
||||
self.serializer = self.output_formats[self.output_format]
|
||||
except KeyError as e:
|
||||
valid_formats = list(self.output_formats.keys())
|
||||
valid_formats.sort()
|
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message = 'Invalid Output Format: "%s". Use one of %s.' \
|
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% (self.output_format,
|
||||
'"' + '", "'.join(valid_formats) + '"')
|
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e.args = (message,) + e.args[1:]
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raise
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return self
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|
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def convert(self, source):
|
||||
"""
|
||||
Convert markdown to serialized XHTML or HTML.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* source: Source text as a Unicode string.
|
||||
|
||||
Markdown processing takes place in five steps:
|
||||
|
||||
1. A bunch of "preprocessors" munge the input text.
|
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2. BlockParser() parses the high-level structural elements of the
|
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pre-processed text into an ElementTree.
|
||||
3. A bunch of "treeprocessors" are run against the ElementTree. One
|
||||
such treeprocessor runs InlinePatterns against the ElementTree,
|
||||
detecting inline markup.
|
||||
4. Some post-processors are run against the text after the ElementTree
|
||||
has been serialized into text.
|
||||
5. The output is written to a string.
|
||||
|
||||
"""
|
||||
|
||||
# Fixup the source text
|
||||
if not source.strip():
|
||||
return '' # a blank unicode string
|
||||
|
||||
try:
|
||||
source = util.text_type(source)
|
||||
except UnicodeDecodeError as e:
|
||||
# Customise error message while maintaining original trackback
|
||||
e.reason += '. -- Note: Markdown only accepts unicode input!'
|
||||
raise
|
||||
|
||||
# Split into lines and run the line preprocessors.
|
||||
self.lines = source.split("\n")
|
||||
for prep in self.preprocessors.values():
|
||||
self.lines = prep.run(self.lines)
|
||||
|
||||
# Parse the high-level elements.
|
||||
root = self.parser.parseDocument(self.lines).getroot()
|
||||
|
||||
# Run the tree-processors
|
||||
for treeprocessor in self.treeprocessors.values():
|
||||
newRoot = treeprocessor.run(root)
|
||||
if newRoot:
|
||||
root = newRoot
|
||||
|
||||
# Serialize _properly_. Strip top-level tags.
|
||||
output = self.serializer(root)
|
||||
if self.stripTopLevelTags:
|
||||
try:
|
||||
start = output.index('<%s>'%self.doc_tag)+len(self.doc_tag)+2
|
||||
end = output.rindex('</%s>'%self.doc_tag)
|
||||
output = output[start:end].strip()
|
||||
except ValueError:
|
||||
if output.strip().endswith('<%s />'%self.doc_tag):
|
||||
# We have an empty document
|
||||
output = ''
|
||||
else:
|
||||
# We have a serious problem
|
||||
raise ValueError('Markdown failed to strip top-level tags. Document=%r' % output.strip())
|
||||
|
||||
# Run the text post-processors
|
||||
for pp in self.postprocessors.values():
|
||||
output = pp.run(output)
|
||||
|
||||
return output.strip()
|
||||
|
||||
def convertFile(self, input=None, output=None, encoding=None):
|
||||
"""Converts a markdown file and returns the HTML as a unicode string.
|
||||
|
||||
Decodes the file using the provided encoding (defaults to utf-8),
|
||||
passes the file content to markdown, and outputs the html to either
|
||||
the provided stream or the file with provided name, using the same
|
||||
encoding as the source file. The 'xmlcharrefreplace' error handler is
|
||||
used when encoding the output.
|
||||
|
||||
**Note:** This is the only place that decoding and encoding of unicode
|
||||
takes place in Python-Markdown. (All other code is unicode-in /
|
||||
unicode-out.)
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* input: File object or path. Reads from stdin if `None`.
|
||||
* output: File object or path. Writes to stdout if `None`.
|
||||
* encoding: Encoding of input and output files. Defaults to utf-8.
|
||||
|
||||
"""
|
||||
|
||||
encoding = encoding or "utf-8"
|
||||
|
||||
# Read the source
|
||||
if input:
|
||||
if isinstance(input, util.string_type):
|
||||
input_file = codecs.open(input, mode="r", encoding=encoding)
|
||||
else:
|
||||
input_file = codecs.getreader(encoding)(input)
|
||||
text = input_file.read()
|
||||
input_file.close()
|
||||
else:
|
||||
text = sys.stdin.read()
|
||||
if not isinstance(text, util.text_type):
|
||||
text = text.decode(encoding)
|
||||
|
||||
text = text.lstrip('\ufeff') # remove the byte-order mark
|
||||
|
||||
# Convert
|
||||
html = self.convert(text)
|
||||
|
||||
# Write to file or stdout
|
||||
if output:
|
||||
if isinstance(output, util.string_type):
|
||||
output_file = codecs.open(output, "w",
|
||||
encoding=encoding,
|
||||
errors="xmlcharrefreplace")
|
||||
output_file.write(html)
|
||||
output_file.close()
|
||||
else:
|
||||
writer = codecs.getwriter(encoding)
|
||||
output_file = writer(output, errors="xmlcharrefreplace")
|
||||
output_file.write(html)
|
||||
# Don't close here. User may want to write more.
|
||||
else:
|
||||
# Encode manually and write bytes to stdout.
|
||||
html = html.encode(encoding, "xmlcharrefreplace")
|
||||
try:
|
||||
# Write bytes directly to buffer (Python 3).
|
||||
sys.stdout.buffer.write(html)
|
||||
except AttributeError:
|
||||
# Probably Python 2, which works with bytes by default.
|
||||
sys.stdout.write(html)
|
||||
|
||||
return self
|
||||
|
||||
|
||||
"""
|
||||
EXPORTED FUNCTIONS
|
||||
=============================================================================
|
||||
|
||||
Those are the two functions we really mean to export: markdown() and
|
||||
markdownFromFile().
|
||||
"""
|
||||
|
||||
def markdown(text, *args, **kwargs):
|
||||
"""Convert a markdown string to HTML and return HTML as a unicode string.
|
||||
|
||||
This is a shortcut function for `Markdown` class to cover the most
|
||||
basic use case. It initializes an instance of Markdown, loads the
|
||||
necessary extensions and runs the parser on the given text.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* text: Markdown formatted text as Unicode or ASCII string.
|
||||
* Any arguments accepted by the Markdown class.
|
||||
|
||||
Returns: An HTML document as a string.
|
||||
|
||||
"""
|
||||
md = Markdown(*args, **kwargs)
|
||||
return md.convert(text)
|
||||
|
||||
|
||||
def markdownFromFile(*args, **kwargs):
|
||||
"""Read markdown code from a file and write it to a file or a stream.
|
||||
|
||||
This is a shortcut function which initializes an instance of Markdown,
|
||||
and calls the convertFile method rather than convert.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* input: a file name or readable object.
|
||||
* output: a file name or writable object.
|
||||
* encoding: Encoding of input and output.
|
||||
* Any arguments accepted by the Markdown class.
|
||||
|
||||
"""
|
||||
# For backward compatibility loop through positional args
|
||||
pos = ['input', 'output', 'extensions', 'encoding']
|
||||
c = 0
|
||||
for arg in args:
|
||||
if pos[c] not in kwargs:
|
||||
kwargs[pos[c]] = arg
|
||||
c += 1
|
||||
if c == len(pos):
|
||||
break
|
||||
|
||||
md = Markdown(**kwargs)
|
||||
md.convertFile(kwargs.get('input', None),
|
||||
kwargs.get('output', None),
|
||||
kwargs.get('encoding', None))
|
||||
|
||||
@@ -0,0 +1,87 @@
|
||||
"""
|
||||
COMMAND-LINE SPECIFIC STUFF
|
||||
=============================================================================
|
||||
|
||||
"""
|
||||
|
||||
import markdown
|
||||
import sys
|
||||
import optparse
|
||||
|
||||
import logging
|
||||
from logging import DEBUG, INFO, CRITICAL
|
||||
|
||||
logger = logging.getLogger('MARKDOWN')
|
||||
|
||||
def parse_options():
|
||||
"""
|
||||
Define and parse `optparse` options for command-line usage.
|
||||
"""
|
||||
usage = """%prog [options] [INPUTFILE]
|
||||
(STDIN is assumed if no INPUTFILE is given)"""
|
||||
desc = "A Python implementation of John Gruber's Markdown. " \
|
||||
"http://packages.python.org/Markdown/"
|
||||
ver = "%%prog %s" % markdown.version
|
||||
|
||||
parser = optparse.OptionParser(usage=usage, description=desc, version=ver)
|
||||
parser.add_option("-f", "--file", dest="filename", default=None,
|
||||
help="Write output to OUTPUT_FILE. Defaults to STDOUT.",
|
||||
metavar="OUTPUT_FILE")
|
||||
parser.add_option("-e", "--encoding", dest="encoding",
|
||||
help="Encoding for input and output files.",)
|
||||
parser.add_option("-q", "--quiet", default = CRITICAL,
|
||||
action="store_const", const=CRITICAL+10, dest="verbose",
|
||||
help="Suppress all warnings.")
|
||||
parser.add_option("-v", "--verbose",
|
||||
action="store_const", const=INFO, dest="verbose",
|
||||
help="Print all warnings.")
|
||||
parser.add_option("-s", "--safe", dest="safe", default=False,
|
||||
metavar="SAFE_MODE",
|
||||
help="'replace', 'remove' or 'escape' HTML tags in input")
|
||||
parser.add_option("-o", "--output_format", dest="output_format",
|
||||
default='xhtml1', metavar="OUTPUT_FORMAT",
|
||||
help="'xhtml1' (default), 'html4' or 'html5'.")
|
||||
parser.add_option("--noisy",
|
||||
action="store_const", const=DEBUG, dest="verbose",
|
||||
help="Print debug messages.")
|
||||
parser.add_option("-x", "--extension", action="append", dest="extensions",
|
||||
help = "Load extension EXTENSION.", metavar="EXTENSION")
|
||||
parser.add_option("-n", "--no_lazy_ol", dest="lazy_ol",
|
||||
action='store_false', default=True,
|
||||
help="Observe number of first item of ordered lists.")
|
||||
|
||||
(options, args) = parser.parse_args()
|
||||
|
||||
if len(args) == 0:
|
||||
input_file = None
|
||||
else:
|
||||
input_file = args[0]
|
||||
|
||||
if not options.extensions:
|
||||
options.extensions = []
|
||||
|
||||
return {'input': input_file,
|
||||
'output': options.filename,
|
||||
'safe_mode': options.safe,
|
||||
'extensions': options.extensions,
|
||||
'encoding': options.encoding,
|
||||
'output_format': options.output_format,
|
||||
'lazy_ol': options.lazy_ol}, options.verbose
|
||||
|
||||
def run():
|
||||
"""Run Markdown from the command line."""
|
||||
|
||||
# Parse options and adjust logging level if necessary
|
||||
options, logging_level = parse_options()
|
||||
if not options: sys.exit(2)
|
||||
logger.setLevel(logging_level)
|
||||
logger.addHandler(logging.StreamHandler())
|
||||
|
||||
# Run
|
||||
markdown.markdownFromFile(**options)
|
||||
|
||||
if __name__ == '__main__':
|
||||
# Support running module as a commandline command.
|
||||
# Python 2.5 & 2.6 do: `python -m markdown.__main__ [options] [args]`.
|
||||
# Python 2.7 & 3.x do: `python -m markdown [options] [args]`.
|
||||
run()
|
||||
@@ -0,0 +1,28 @@
|
||||
#
|
||||
# markdown/__version__.py
|
||||
#
|
||||
# version_info should conform to PEP 386
|
||||
# (major, minor, micro, alpha/beta/rc/final, #)
|
||||
# (1, 1, 2, 'alpha', 0) => "1.1.2.dev"
|
||||
# (1, 2, 0, 'beta', 2) => "1.2b2"
|
||||
version_info = (2, 3, 1, 'final', 0)
|
||||
|
||||
def _get_version():
|
||||
" Returns a PEP 386-compliant version number from version_info. "
|
||||
assert len(version_info) == 5
|
||||
assert version_info[3] in ('alpha', 'beta', 'rc', 'final')
|
||||
|
||||
parts = 2 if version_info[2] == 0 else 3
|
||||
main = '.'.join(map(str, version_info[:parts]))
|
||||
|
||||
sub = ''
|
||||
if version_info[3] == 'alpha' and version_info[4] == 0:
|
||||
# TODO: maybe append some sort of git info here??
|
||||
sub = '.dev'
|
||||
elif version_info[3] != 'final':
|
||||
mapping = {'alpha': 'a', 'beta': 'b', 'rc': 'c'}
|
||||
sub = mapping[version_info[3]] + str(version_info[4])
|
||||
|
||||
return str(main + sub)
|
||||
|
||||
version = _get_version()
|
||||
@@ -0,0 +1,99 @@
|
||||
from __future__ import unicode_literals
|
||||
from __future__ import absolute_import
|
||||
from . import util
|
||||
from . import odict
|
||||
|
||||
class State(list):
|
||||
""" Track the current and nested state of the parser.
|
||||
|
||||
This utility class is used to track the state of the BlockParser and
|
||||
support multiple levels if nesting. It's just a simple API wrapped around
|
||||
a list. Each time a state is set, that state is appended to the end of the
|
||||
list. Each time a state is reset, that state is removed from the end of
|
||||
the list.
|
||||
|
||||
Therefore, each time a state is set for a nested block, that state must be
|
||||
reset when we back out of that level of nesting or the state could be
|
||||
corrupted.
|
||||
|
||||
While all the methods of a list object are available, only the three
|
||||
defined below need be used.
|
||||
|
||||
"""
|
||||
|
||||
def set(self, state):
|
||||
""" Set a new state. """
|
||||
self.append(state)
|
||||
|
||||
def reset(self):
|
||||
""" Step back one step in nested state. """
|
||||
self.pop()
|
||||
|
||||
def isstate(self, state):
|
||||
""" Test that top (current) level is of given state. """
|
||||
if len(self):
|
||||
return self[-1] == state
|
||||
else:
|
||||
return False
|
||||
|
||||
class BlockParser:
|
||||
""" Parse Markdown blocks into an ElementTree object.
|
||||
|
||||
A wrapper class that stitches the various BlockProcessors together,
|
||||
looping through them and creating an ElementTree object.
|
||||
"""
|
||||
|
||||
def __init__(self, markdown):
|
||||
self.blockprocessors = odict.OrderedDict()
|
||||
self.state = State()
|
||||
self.markdown = markdown
|
||||
|
||||
def parseDocument(self, lines):
|
||||
""" Parse a markdown document into an ElementTree.
|
||||
|
||||
Given a list of lines, an ElementTree object (not just a parent Element)
|
||||
is created and the root element is passed to the parser as the parent.
|
||||
The ElementTree object is returned.
|
||||
|
||||
This should only be called on an entire document, not pieces.
|
||||
|
||||
"""
|
||||
# Create a ElementTree from the lines
|
||||
self.root = util.etree.Element(self.markdown.doc_tag)
|
||||
self.parseChunk(self.root, '\n'.join(lines))
|
||||
return util.etree.ElementTree(self.root)
|
||||
|
||||
def parseChunk(self, parent, text):
|
||||
""" Parse a chunk of markdown text and attach to given etree node.
|
||||
|
||||
While the ``text`` argument is generally assumed to contain multiple
|
||||
blocks which will be split on blank lines, it could contain only one
|
||||
block. Generally, this method would be called by extensions when
|
||||
block parsing is required.
|
||||
|
||||
The ``parent`` etree Element passed in is altered in place.
|
||||
Nothing is returned.
|
||||
|
||||
"""
|
||||
self.parseBlocks(parent, text.split('\n\n'))
|
||||
|
||||
def parseBlocks(self, parent, blocks):
|
||||
""" Process blocks of markdown text and attach to given etree node.
|
||||
|
||||
Given a list of ``blocks``, each blockprocessor is stepped through
|
||||
until there are no blocks left. While an extension could potentially
|
||||
call this method directly, it's generally expected to be used internally.
|
||||
|
||||
This is a public method as an extension may need to add/alter additional
|
||||
BlockProcessors which call this method to recursively parse a nested
|
||||
block.
|
||||
|
||||
"""
|
||||
while blocks:
|
||||
for processor in self.blockprocessors.values():
|
||||
if processor.test(parent, blocks[0]):
|
||||
if processor.run(parent, blocks) is not False:
|
||||
# run returns True or None
|
||||
break
|
||||
|
||||
|
||||
@@ -0,0 +1,558 @@
|
||||
"""
|
||||
CORE MARKDOWN BLOCKPARSER
|
||||
===========================================================================
|
||||
|
||||
This parser handles basic parsing of Markdown blocks. It doesn't concern itself
|
||||
with inline elements such as **bold** or *italics*, but rather just catches
|
||||
blocks, lists, quotes, etc.
|
||||
|
||||
The BlockParser is made up of a bunch of BlockProssors, each handling a
|
||||
different type of block. Extensions may add/replace/remove BlockProcessors
|
||||
as they need to alter how markdown blocks are parsed.
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import division
|
||||
from __future__ import unicode_literals
|
||||
import logging
|
||||
import re
|
||||
from . import util
|
||||
from .blockparser import BlockParser
|
||||
|
||||
logger = logging.getLogger('MARKDOWN')
|
||||
|
||||
|
||||
def build_block_parser(md_instance, **kwargs):
|
||||
""" Build the default block parser used by Markdown. """
|
||||
parser = BlockParser(md_instance)
|
||||
parser.blockprocessors['empty'] = EmptyBlockProcessor(parser)
|
||||
parser.blockprocessors['indent'] = ListIndentProcessor(parser)
|
||||
parser.blockprocessors['code'] = CodeBlockProcessor(parser)
|
||||
parser.blockprocessors['hashheader'] = HashHeaderProcessor(parser)
|
||||
parser.blockprocessors['setextheader'] = SetextHeaderProcessor(parser)
|
||||
parser.blockprocessors['hr'] = HRProcessor(parser)
|
||||
parser.blockprocessors['olist'] = OListProcessor(parser)
|
||||
parser.blockprocessors['ulist'] = UListProcessor(parser)
|
||||
parser.blockprocessors['quote'] = BlockQuoteProcessor(parser)
|
||||
parser.blockprocessors['paragraph'] = ParagraphProcessor(parser)
|
||||
return parser
|
||||
|
||||
|
||||
class BlockProcessor:
|
||||
""" Base class for block processors.
|
||||
|
||||
Each subclass will provide the methods below to work with the source and
|
||||
tree. Each processor will need to define it's own ``test`` and ``run``
|
||||
methods. The ``test`` method should return True or False, to indicate
|
||||
whether the current block should be processed by this processor. If the
|
||||
test passes, the parser will call the processors ``run`` method.
|
||||
|
||||
"""
|
||||
|
||||
def __init__(self, parser):
|
||||
self.parser = parser
|
||||
self.tab_length = parser.markdown.tab_length
|
||||
|
||||
def lastChild(self, parent):
|
||||
""" Return the last child of an etree element. """
|
||||
if len(parent):
|
||||
return parent[-1]
|
||||
else:
|
||||
return None
|
||||
|
||||
def detab(self, text):
|
||||
""" Remove a tab from the front of each line of the given text. """
|
||||
newtext = []
|
||||
lines = text.split('\n')
|
||||
for line in lines:
|
||||
if line.startswith(' '*self.tab_length):
|
||||
newtext.append(line[self.tab_length:])
|
||||
elif not line.strip():
|
||||
newtext.append('')
|
||||
else:
|
||||
break
|
||||
return '\n'.join(newtext), '\n'.join(lines[len(newtext):])
|
||||
|
||||
def looseDetab(self, text, level=1):
|
||||
""" Remove a tab from front of lines but allowing dedented lines. """
|
||||
lines = text.split('\n')
|
||||
for i in range(len(lines)):
|
||||
if lines[i].startswith(' '*self.tab_length*level):
|
||||
lines[i] = lines[i][self.tab_length*level:]
|
||||
return '\n'.join(lines)
|
||||
|
||||
def test(self, parent, block):
|
||||
""" Test for block type. Must be overridden by subclasses.
|
||||
|
||||
As the parser loops through processors, it will call the ``test`` method
|
||||
on each to determine if the given block of text is of that type. This
|
||||
method must return a boolean ``True`` or ``False``. The actual method of
|
||||
testing is left to the needs of that particular block type. It could
|
||||
be as simple as ``block.startswith(some_string)`` or a complex regular
|
||||
expression. As the block type may be different depending on the parent
|
||||
of the block (i.e. inside a list), the parent etree element is also
|
||||
provided and may be used as part of the test.
|
||||
|
||||
Keywords:
|
||||
|
||||
* ``parent``: A etree element which will be the parent of the block.
|
||||
* ``block``: A block of text from the source which has been split at
|
||||
blank lines.
|
||||
"""
|
||||
pass
|
||||
|
||||
def run(self, parent, blocks):
|
||||
""" Run processor. Must be overridden by subclasses.
|
||||
|
||||
When the parser determines the appropriate type of a block, the parser
|
||||
will call the corresponding processor's ``run`` method. This method
|
||||
should parse the individual lines of the block and append them to
|
||||
the etree.
|
||||
|
||||
Note that both the ``parent`` and ``etree`` keywords are pointers
|
||||
to instances of the objects which should be edited in place. Each
|
||||
processor must make changes to the existing objects as there is no
|
||||
mechanism to return new/different objects to replace them.
|
||||
|
||||
This means that this method should be adding SubElements or adding text
|
||||
to the parent, and should remove (``pop``) or add (``insert``) items to
|
||||
the list of blocks.
|
||||
|
||||
Keywords:
|
||||
|
||||
* ``parent``: A etree element which is the parent of the current block.
|
||||
* ``blocks``: A list of all remaining blocks of the document.
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class ListIndentProcessor(BlockProcessor):
|
||||
""" Process children of list items.
|
||||
|
||||
Example:
|
||||
* a list item
|
||||
process this part
|
||||
|
||||
or this part
|
||||
|
||||
"""
|
||||
|
||||
ITEM_TYPES = ['li']
|
||||
LIST_TYPES = ['ul', 'ol']
|
||||
|
||||
def __init__(self, *args):
|
||||
BlockProcessor.__init__(self, *args)
|
||||
self.INDENT_RE = re.compile(r'^(([ ]{%s})+)'% self.tab_length)
|
||||
|
||||
def test(self, parent, block):
|
||||
return block.startswith(' '*self.tab_length) and \
|
||||
not self.parser.state.isstate('detabbed') and \
|
||||
(parent.tag in self.ITEM_TYPES or \
|
||||
(len(parent) and parent[-1] and \
|
||||
(parent[-1].tag in self.LIST_TYPES)
|
||||
)
|
||||
)
|
||||
|
||||
def run(self, parent, blocks):
|
||||
block = blocks.pop(0)
|
||||
level, sibling = self.get_level(parent, block)
|
||||
block = self.looseDetab(block, level)
|
||||
|
||||
self.parser.state.set('detabbed')
|
||||
if parent.tag in self.ITEM_TYPES:
|
||||
# It's possible that this parent has a 'ul' or 'ol' child list
|
||||
# with a member. If that is the case, then that should be the
|
||||
# parent. This is intended to catch the edge case of an indented
|
||||
# list whose first member was parsed previous to this point
|
||||
# see OListProcessor
|
||||
if len(parent) and parent[-1].tag in self.LIST_TYPES:
|
||||
self.parser.parseBlocks(parent[-1], [block])
|
||||
else:
|
||||
# The parent is already a li. Just parse the child block.
|
||||
self.parser.parseBlocks(parent, [block])
|
||||
elif sibling.tag in self.ITEM_TYPES:
|
||||
# The sibling is a li. Use it as parent.
|
||||
self.parser.parseBlocks(sibling, [block])
|
||||
elif len(sibling) and sibling[-1].tag in self.ITEM_TYPES:
|
||||
# The parent is a list (``ol`` or ``ul``) which has children.
|
||||
# Assume the last child li is the parent of this block.
|
||||
if sibling[-1].text:
|
||||
# If the parent li has text, that text needs to be moved to a p
|
||||
# The p must be 'inserted' at beginning of list in the event
|
||||
# that other children already exist i.e.; a nested sublist.
|
||||
p = util.etree.Element('p')
|
||||
p.text = sibling[-1].text
|
||||
sibling[-1].text = ''
|
||||
sibling[-1].insert(0, p)
|
||||
self.parser.parseChunk(sibling[-1], block)
|
||||
else:
|
||||
self.create_item(sibling, block)
|
||||
self.parser.state.reset()
|
||||
|
||||
def create_item(self, parent, block):
|
||||
""" Create a new li and parse the block with it as the parent. """
|
||||
li = util.etree.SubElement(parent, 'li')
|
||||
self.parser.parseBlocks(li, [block])
|
||||
|
||||
def get_level(self, parent, block):
|
||||
""" Get level of indent based on list level. """
|
||||
# Get indent level
|
||||
m = self.INDENT_RE.match(block)
|
||||
if m:
|
||||
indent_level = len(m.group(1))/self.tab_length
|
||||
else:
|
||||
indent_level = 0
|
||||
if self.parser.state.isstate('list'):
|
||||
# We're in a tightlist - so we already are at correct parent.
|
||||
level = 1
|
||||
else:
|
||||
# We're in a looselist - so we need to find parent.
|
||||
level = 0
|
||||
# Step through children of tree to find matching indent level.
|
||||
while indent_level > level:
|
||||
child = self.lastChild(parent)
|
||||
if child and (child.tag in self.LIST_TYPES or child.tag in self.ITEM_TYPES):
|
||||
if child.tag in self.LIST_TYPES:
|
||||
level += 1
|
||||
parent = child
|
||||
else:
|
||||
# No more child levels. If we're short of indent_level,
|
||||
# we have a code block. So we stop here.
|
||||
break
|
||||
return level, parent
|
||||
|
||||
|
||||
class CodeBlockProcessor(BlockProcessor):
|
||||
""" Process code blocks. """
|
||||
|
||||
def test(self, parent, block):
|
||||
return block.startswith(' '*self.tab_length)
|
||||
|
||||
def run(self, parent, blocks):
|
||||
sibling = self.lastChild(parent)
|
||||
block = blocks.pop(0)
|
||||
theRest = ''
|
||||
if sibling and sibling.tag == "pre" and len(sibling) \
|
||||
and sibling[0].tag == "code":
|
||||
# The previous block was a code block. As blank lines do not start
|
||||
# new code blocks, append this block to the previous, adding back
|
||||
# linebreaks removed from the split into a list.
|
||||
code = sibling[0]
|
||||
block, theRest = self.detab(block)
|
||||
code.text = util.AtomicString('%s\n%s\n' % (code.text, block.rstrip()))
|
||||
else:
|
||||
# This is a new codeblock. Create the elements and insert text.
|
||||
pre = util.etree.SubElement(parent, 'pre')
|
||||
code = util.etree.SubElement(pre, 'code')
|
||||
block, theRest = self.detab(block)
|
||||
code.text = util.AtomicString('%s\n' % block.rstrip())
|
||||
if theRest:
|
||||
# This block contained unindented line(s) after the first indented
|
||||
# line. Insert these lines as the first block of the master blocks
|
||||
# list for future processing.
|
||||
blocks.insert(0, theRest)
|
||||
|
||||
|
||||
class BlockQuoteProcessor(BlockProcessor):
|
||||
|
||||
RE = re.compile(r'(^|\n)[ ]{0,3}>[ ]?(.*)')
|
||||
|
||||
def test(self, parent, block):
|
||||
return bool(self.RE.search(block))
|
||||
|
||||
def run(self, parent, blocks):
|
||||
block = blocks.pop(0)
|
||||
m = self.RE.search(block)
|
||||
if m:
|
||||
before = block[:m.start()] # Lines before blockquote
|
||||
# Pass lines before blockquote in recursively for parsing forst.
|
||||
self.parser.parseBlocks(parent, [before])
|
||||
# Remove ``> `` from begining of each line.
|
||||
block = '\n'.join([self.clean(line) for line in
|
||||
block[m.start():].split('\n')])
|
||||
sibling = self.lastChild(parent)
|
||||
if sibling and sibling.tag == "blockquote":
|
||||
# Previous block was a blockquote so set that as this blocks parent
|
||||
quote = sibling
|
||||
else:
|
||||
# This is a new blockquote. Create a new parent element.
|
||||
quote = util.etree.SubElement(parent, 'blockquote')
|
||||
# Recursively parse block with blockquote as parent.
|
||||
# change parser state so blockquotes embedded in lists use p tags
|
||||
self.parser.state.set('blockquote')
|
||||
self.parser.parseChunk(quote, block)
|
||||
self.parser.state.reset()
|
||||
|
||||
def clean(self, line):
|
||||
""" Remove ``>`` from beginning of a line. """
|
||||
m = self.RE.match(line)
|
||||
if line.strip() == ">":
|
||||
return ""
|
||||
elif m:
|
||||
return m.group(2)
|
||||
else:
|
||||
return line
|
||||
|
||||
class OListProcessor(BlockProcessor):
|
||||
""" Process ordered list blocks. """
|
||||
|
||||
TAG = 'ol'
|
||||
# Detect an item (``1. item``). ``group(1)`` contains contents of item.
|
||||
RE = re.compile(r'^[ ]{0,3}\d+\.[ ]+(.*)')
|
||||
# Detect items on secondary lines. they can be of either list type.
|
||||
CHILD_RE = re.compile(r'^[ ]{0,3}((\d+\.)|[*+-])[ ]+(.*)')
|
||||
# Detect indented (nested) items of either type
|
||||
INDENT_RE = re.compile(r'^[ ]{4,7}((\d+\.)|[*+-])[ ]+.*')
|
||||
# The integer (python string) with which the lists starts (default=1)
|
||||
# Eg: If list is intialized as)
|
||||
# 3. Item
|
||||
# The ol tag will get starts="3" attribute
|
||||
STARTSWITH = '1'
|
||||
# List of allowed sibling tags.
|
||||
SIBLING_TAGS = ['ol', 'ul']
|
||||
|
||||
def test(self, parent, block):
|
||||
return bool(self.RE.match(block))
|
||||
|
||||
def run(self, parent, blocks):
|
||||
# Check fr multiple items in one block.
|
||||
items = self.get_items(blocks.pop(0))
|
||||
sibling = self.lastChild(parent)
|
||||
|
||||
if sibling and sibling.tag in self.SIBLING_TAGS:
|
||||
# Previous block was a list item, so set that as parent
|
||||
lst = sibling
|
||||
# make sure previous item is in a p- if the item has text, then it
|
||||
# it isn't in a p
|
||||
if lst[-1].text:
|
||||
# since it's possible there are other children for this sibling,
|
||||
# we can't just SubElement the p, we need to insert it as the
|
||||
# first item
|
||||
p = util.etree.Element('p')
|
||||
p.text = lst[-1].text
|
||||
lst[-1].text = ''
|
||||
lst[-1].insert(0, p)
|
||||
# if the last item has a tail, then the tail needs to be put in a p
|
||||
# likely only when a header is not followed by a blank line
|
||||
lch = self.lastChild(lst[-1])
|
||||
if lch is not None and lch.tail:
|
||||
p = util.etree.SubElement(lst[-1], 'p')
|
||||
p.text = lch.tail.lstrip()
|
||||
lch.tail = ''
|
||||
|
||||
# parse first block differently as it gets wrapped in a p.
|
||||
li = util.etree.SubElement(lst, 'li')
|
||||
self.parser.state.set('looselist')
|
||||
firstitem = items.pop(0)
|
||||
self.parser.parseBlocks(li, [firstitem])
|
||||
self.parser.state.reset()
|
||||
elif parent.tag in ['ol', 'ul']:
|
||||
# this catches the edge case of a multi-item indented list whose
|
||||
# first item is in a blank parent-list item:
|
||||
# * * subitem1
|
||||
# * subitem2
|
||||
# see also ListIndentProcessor
|
||||
lst = parent
|
||||
else:
|
||||
# This is a new list so create parent with appropriate tag.
|
||||
lst = util.etree.SubElement(parent, self.TAG)
|
||||
# Check if a custom start integer is set
|
||||
if not self.parser.markdown.lazy_ol and self.STARTSWITH !='1':
|
||||
lst.attrib['start'] = self.STARTSWITH
|
||||
|
||||
self.parser.state.set('list')
|
||||
# Loop through items in block, recursively parsing each with the
|
||||
# appropriate parent.
|
||||
for item in items:
|
||||
if item.startswith(' '*self.tab_length):
|
||||
# Item is indented. Parse with last item as parent
|
||||
self.parser.parseBlocks(lst[-1], [item])
|
||||
else:
|
||||
# New item. Create li and parse with it as parent
|
||||
li = util.etree.SubElement(lst, 'li')
|
||||
self.parser.parseBlocks(li, [item])
|
||||
self.parser.state.reset()
|
||||
|
||||
def get_items(self, block):
|
||||
""" Break a block into list items. """
|
||||
items = []
|
||||
for line in block.split('\n'):
|
||||
m = self.CHILD_RE.match(line)
|
||||
if m:
|
||||
# This is a new list item
|
||||
# Check first item for the start index
|
||||
if not items and self.TAG=='ol':
|
||||
# Detect the integer value of first list item
|
||||
INTEGER_RE = re.compile('(\d+)')
|
||||
self.STARTSWITH = INTEGER_RE.match(m.group(1)).group()
|
||||
# Append to the list
|
||||
items.append(m.group(3))
|
||||
elif self.INDENT_RE.match(line):
|
||||
# This is an indented (possibly nested) item.
|
||||
if items[-1].startswith(' '*self.tab_length):
|
||||
# Previous item was indented. Append to that item.
|
||||
items[-1] = '%s\n%s' % (items[-1], line)
|
||||
else:
|
||||
items.append(line)
|
||||
else:
|
||||
# This is another line of previous item. Append to that item.
|
||||
items[-1] = '%s\n%s' % (items[-1], line)
|
||||
return items
|
||||
|
||||
|
||||
class UListProcessor(OListProcessor):
|
||||
""" Process unordered list blocks. """
|
||||
|
||||
TAG = 'ul'
|
||||
RE = re.compile(r'^[ ]{0,3}[*+-][ ]+(.*)')
|
||||
|
||||
|
||||
class HashHeaderProcessor(BlockProcessor):
|
||||
""" Process Hash Headers. """
|
||||
|
||||
# Detect a header at start of any line in block
|
||||
RE = re.compile(r'(^|\n)(?P<level>#{1,6})(?P<header>.*?)#*(\n|$)')
|
||||
|
||||
def test(self, parent, block):
|
||||
return bool(self.RE.search(block))
|
||||
|
||||
def run(self, parent, blocks):
|
||||
block = blocks.pop(0)
|
||||
m = self.RE.search(block)
|
||||
if m:
|
||||
before = block[:m.start()] # All lines before header
|
||||
after = block[m.end():] # All lines after header
|
||||
if before:
|
||||
# As the header was not the first line of the block and the
|
||||
# lines before the header must be parsed first,
|
||||
# recursively parse this lines as a block.
|
||||
self.parser.parseBlocks(parent, [before])
|
||||
# Create header using named groups from RE
|
||||
h = util.etree.SubElement(parent, 'h%d' % len(m.group('level')))
|
||||
h.text = m.group('header').strip()
|
||||
if after:
|
||||
# Insert remaining lines as first block for future parsing.
|
||||
blocks.insert(0, after)
|
||||
else:
|
||||
# This should never happen, but just in case...
|
||||
logger.warn("We've got a problem header: %r" % block)
|
||||
|
||||
|
||||
class SetextHeaderProcessor(BlockProcessor):
|
||||
""" Process Setext-style Headers. """
|
||||
|
||||
# Detect Setext-style header. Must be first 2 lines of block.
|
||||
RE = re.compile(r'^.*?\n[=-]+[ ]*(\n|$)', re.MULTILINE)
|
||||
|
||||
def test(self, parent, block):
|
||||
return bool(self.RE.match(block))
|
||||
|
||||
def run(self, parent, blocks):
|
||||
lines = blocks.pop(0).split('\n')
|
||||
# Determine level. ``=`` is 1 and ``-`` is 2.
|
||||
if lines[1].startswith('='):
|
||||
level = 1
|
||||
else:
|
||||
level = 2
|
||||
h = util.etree.SubElement(parent, 'h%d' % level)
|
||||
h.text = lines[0].strip()
|
||||
if len(lines) > 2:
|
||||
# Block contains additional lines. Add to master blocks for later.
|
||||
blocks.insert(0, '\n'.join(lines[2:]))
|
||||
|
||||
|
||||
class HRProcessor(BlockProcessor):
|
||||
""" Process Horizontal Rules. """
|
||||
|
||||
RE = r'^[ ]{0,3}((-+[ ]{0,2}){3,}|(_+[ ]{0,2}){3,}|(\*+[ ]{0,2}){3,})[ ]*'
|
||||
# Detect hr on any line of a block.
|
||||
SEARCH_RE = re.compile(RE, re.MULTILINE)
|
||||
|
||||
def test(self, parent, block):
|
||||
m = self.SEARCH_RE.search(block)
|
||||
# No atomic grouping in python so we simulate it here for performance.
|
||||
# The regex only matches what would be in the atomic group - the HR.
|
||||
# Then check if we are at end of block or if next char is a newline.
|
||||
if m and (m.end() == len(block) or block[m.end()] == '\n'):
|
||||
# Save match object on class instance so we can use it later.
|
||||
self.match = m
|
||||
return True
|
||||
return False
|
||||
|
||||
def run(self, parent, blocks):
|
||||
block = blocks.pop(0)
|
||||
# Check for lines in block before hr.
|
||||
prelines = block[:self.match.start()].rstrip('\n')
|
||||
if prelines:
|
||||
# Recursively parse lines before hr so they get parsed first.
|
||||
self.parser.parseBlocks(parent, [prelines])
|
||||
# create hr
|
||||
util.etree.SubElement(parent, 'hr')
|
||||
# check for lines in block after hr.
|
||||
postlines = block[self.match.end():].lstrip('\n')
|
||||
if postlines:
|
||||
# Add lines after hr to master blocks for later parsing.
|
||||
blocks.insert(0, postlines)
|
||||
|
||||
|
||||
|
||||
class EmptyBlockProcessor(BlockProcessor):
|
||||
""" Process blocks that are empty or start with an empty line. """
|
||||
|
||||
def test(self, parent, block):
|
||||
return not block or block.startswith('\n')
|
||||
|
||||
def run(self, parent, blocks):
|
||||
block = blocks.pop(0)
|
||||
filler = '\n\n'
|
||||
if block:
|
||||
# Starts with empty line
|
||||
# Only replace a single line.
|
||||
filler = '\n'
|
||||
# Save the rest for later.
|
||||
theRest = block[1:]
|
||||
if theRest:
|
||||
# Add remaining lines to master blocks for later.
|
||||
blocks.insert(0, theRest)
|
||||
sibling = self.lastChild(parent)
|
||||
if sibling and sibling.tag == 'pre' and len(sibling) and sibling[0].tag == 'code':
|
||||
# Last block is a codeblock. Append to preserve whitespace.
|
||||
sibling[0].text = util.AtomicString('%s%s' % (sibling[0].text, filler))
|
||||
|
||||
|
||||
class ParagraphProcessor(BlockProcessor):
|
||||
""" Process Paragraph blocks. """
|
||||
|
||||
def test(self, parent, block):
|
||||
return True
|
||||
|
||||
def run(self, parent, blocks):
|
||||
block = blocks.pop(0)
|
||||
if block.strip():
|
||||
# Not a blank block. Add to parent, otherwise throw it away.
|
||||
if self.parser.state.isstate('list'):
|
||||
# The parent is a tight-list.
|
||||
#
|
||||
# Check for any children. This will likely only happen in a
|
||||
# tight-list when a header isn't followed by a blank line.
|
||||
# For example:
|
||||
#
|
||||
# * # Header
|
||||
# Line 2 of list item - not part of header.
|
||||
sibling = self.lastChild(parent)
|
||||
if sibling is not None:
|
||||
# Insetrt after sibling.
|
||||
if sibling.tail:
|
||||
sibling.tail = '%s\n%s' % (sibling.tail, block)
|
||||
else:
|
||||
sibling.tail = '\n%s' % block
|
||||
else:
|
||||
# Append to parent.text
|
||||
if parent.text:
|
||||
parent.text = '%s\n%s' % (parent.text, block)
|
||||
else:
|
||||
parent.text = block.lstrip()
|
||||
else:
|
||||
# Create a regular paragraph
|
||||
p = util.etree.SubElement(parent, 'p')
|
||||
p.text = block.lstrip()
|
||||
@@ -0,0 +1,53 @@
|
||||
"""
|
||||
Extensions
|
||||
-----------------------------------------------------------------------------
|
||||
"""
|
||||
|
||||
from __future__ import unicode_literals
|
||||
|
||||
class Extension(object):
|
||||
""" Base class for extensions to subclass. """
|
||||
def __init__(self, configs = {}):
|
||||
"""Create an instance of an Extention.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* configs: A dict of configuration setting used by an Extension.
|
||||
"""
|
||||
self.config = configs
|
||||
|
||||
def getConfig(self, key, default=''):
|
||||
""" Return a setting for the given key or an empty string. """
|
||||
if key in self.config:
|
||||
return self.config[key][0]
|
||||
else:
|
||||
return default
|
||||
|
||||
def getConfigs(self):
|
||||
""" Return all configs settings as a dict. """
|
||||
return dict([(key, self.getConfig(key)) for key in self.config.keys()])
|
||||
|
||||
def getConfigInfo(self):
|
||||
""" Return all config descriptions as a list of tuples. """
|
||||
return [(key, self.config[key][1]) for key in self.config.keys()]
|
||||
|
||||
def setConfig(self, key, value):
|
||||
""" Set a config setting for `key` with the given `value`. """
|
||||
self.config[key][0] = value
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
"""
|
||||
Add the various proccesors and patterns to the Markdown Instance.
|
||||
|
||||
This method must be overriden by every extension.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* md: The Markdown instance.
|
||||
|
||||
* md_globals: Global variables in the markdown module namespace.
|
||||
|
||||
"""
|
||||
raise NotImplementedError('Extension "%s.%s" must define an "extendMarkdown"' \
|
||||
'method.' % (self.__class__.__module__, self.__class__.__name__))
|
||||
|
||||
@@ -0,0 +1,96 @@
|
||||
'''
|
||||
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)
|
||||
@@ -0,0 +1,118 @@
|
||||
"""
|
||||
Admonition extension for Python-Markdown
|
||||
========================================
|
||||
|
||||
Adds rST-style admonitions. Inspired by [rST][] feature with the same name.
|
||||
|
||||
The syntax is (followed by an indented block with the contents):
|
||||
!!! [type] [optional explicit title]
|
||||
|
||||
Where `type` is used as a CSS class name of the div. If not present, `title`
|
||||
defaults to the capitalized `type`, so "note" -> "Note".
|
||||
|
||||
rST suggests the following `types`, but you're free to use whatever you want:
|
||||
attention, caution, danger, error, hint, important, note, tip, warning
|
||||
|
||||
|
||||
A simple example:
|
||||
!!! note
|
||||
This is the first line inside the box.
|
||||
|
||||
Outputs:
|
||||
<div class="admonition note">
|
||||
<p class="admonition-title">Note</p>
|
||||
<p>This is the first line inside the box</p>
|
||||
</div>
|
||||
|
||||
You can also specify the title and CSS class of the admonition:
|
||||
!!! custom "Did you know?"
|
||||
Another line here.
|
||||
|
||||
Outputs:
|
||||
<div class="admonition custom">
|
||||
<p class="admonition-title">Did you know?</p>
|
||||
<p>Another line here.</p>
|
||||
</div>
|
||||
|
||||
[rST]: http://docutils.sourceforge.net/docs/ref/rst/directives.html#specific-admonitions
|
||||
|
||||
By [Tiago Serafim](http://www.tiagoserafim.com/).
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..blockprocessors import BlockProcessor
|
||||
from ..util import etree
|
||||
import re
|
||||
|
||||
|
||||
class AdmonitionExtension(Extension):
|
||||
""" Admonition extension for Python-Markdown. """
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add Admonition to Markdown instance. """
|
||||
md.registerExtension(self)
|
||||
|
||||
md.parser.blockprocessors.add('admonition',
|
||||
AdmonitionProcessor(md.parser),
|
||||
'_begin')
|
||||
|
||||
|
||||
class AdmonitionProcessor(BlockProcessor):
|
||||
|
||||
CLASSNAME = 'admonition'
|
||||
CLASSNAME_TITLE = 'admonition-title'
|
||||
RE = re.compile(r'(?:^|\n)!!!\ ?([\w\-]+)(?:\ "(.*?)")?')
|
||||
|
||||
def test(self, parent, block):
|
||||
sibling = self.lastChild(parent)
|
||||
return self.RE.search(block) or \
|
||||
(block.startswith(' ' * self.tab_length) and sibling and \
|
||||
sibling.get('class', '').find(self.CLASSNAME) != -1)
|
||||
|
||||
def run(self, parent, blocks):
|
||||
sibling = self.lastChild(parent)
|
||||
block = blocks.pop(0)
|
||||
m = self.RE.search(block)
|
||||
|
||||
if m:
|
||||
block = block[m.end() + 1:] # removes the first line
|
||||
|
||||
block, theRest = self.detab(block)
|
||||
|
||||
if m:
|
||||
klass, title = self.get_class_and_title(m)
|
||||
div = etree.SubElement(parent, 'div')
|
||||
div.set('class', '%s %s' % (self.CLASSNAME, klass))
|
||||
if title:
|
||||
p = etree.SubElement(div, 'p')
|
||||
p.text = title
|
||||
p.set('class', self.CLASSNAME_TITLE)
|
||||
else:
|
||||
div = sibling
|
||||
|
||||
self.parser.parseChunk(div, block)
|
||||
|
||||
if theRest:
|
||||
# This block contained unindented line(s) after the first indented
|
||||
# line. Insert these lines as the first block of the master blocks
|
||||
# list for future processing.
|
||||
blocks.insert(0, theRest)
|
||||
|
||||
def get_class_and_title(self, match):
|
||||
klass, title = match.group(1).lower(), match.group(2)
|
||||
if title is None:
|
||||
# no title was provided, use the capitalized classname as title
|
||||
# e.g.: `!!! note` will render `<p class="admonition-title">Note</p>`
|
||||
title = klass.capitalize()
|
||||
elif title == '':
|
||||
# an explicit blank title should not be rendered
|
||||
# e.g.: `!!! warning ""` will *not* render `p` with a title
|
||||
title = None
|
||||
return klass, title
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return AdmonitionExtension(configs=configs)
|
||||
@@ -0,0 +1,140 @@
|
||||
"""
|
||||
Attribute List Extension for Python-Markdown
|
||||
============================================
|
||||
|
||||
Adds attribute list syntax. Inspired by
|
||||
[maruku](http://maruku.rubyforge.org/proposal.html#attribute_lists)'s
|
||||
feature of the same name.
|
||||
|
||||
Copyright 2011 [Waylan Limberg](http://achinghead.com/).
|
||||
|
||||
Contact: markdown@freewisdom.org
|
||||
|
||||
License: BSD (see ../LICENSE.md for details)
|
||||
|
||||
Dependencies:
|
||||
* [Python 2.4+](http://python.org)
|
||||
* [Markdown 2.1+](http://packages.python.org/Markdown/)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..treeprocessors import Treeprocessor
|
||||
from ..util import isBlockLevel
|
||||
import re
|
||||
|
||||
try:
|
||||
Scanner = re.Scanner
|
||||
except AttributeError:
|
||||
# must be on Python 2.4
|
||||
from sre import Scanner
|
||||
|
||||
def _handle_double_quote(s, t):
|
||||
k, v = t.split('=')
|
||||
return k, v.strip('"')
|
||||
|
||||
def _handle_single_quote(s, t):
|
||||
k, v = t.split('=')
|
||||
return k, v.strip("'")
|
||||
|
||||
def _handle_key_value(s, t):
|
||||
return t.split('=')
|
||||
|
||||
def _handle_word(s, t):
|
||||
if t.startswith('.'):
|
||||
return '.', t[1:]
|
||||
if t.startswith('#'):
|
||||
return 'id', t[1:]
|
||||
return t, t
|
||||
|
||||
_scanner = Scanner([
|
||||
(r'[^ ]+=".*?"', _handle_double_quote),
|
||||
(r"[^ ]+='.*?'", _handle_single_quote),
|
||||
(r'[^ ]+=[^ ]*', _handle_key_value),
|
||||
(r'[^ ]+', _handle_word),
|
||||
(r' ', None)
|
||||
])
|
||||
|
||||
def get_attrs(str):
|
||||
""" Parse attribute list and return a list of attribute tuples. """
|
||||
return _scanner.scan(str)[0]
|
||||
|
||||
def isheader(elem):
|
||||
return elem.tag in ['h1', 'h2', 'h3', 'h4', 'h5', 'h6']
|
||||
|
||||
class AttrListTreeprocessor(Treeprocessor):
|
||||
|
||||
BASE_RE = r'\{\:?([^\}]*)\}'
|
||||
HEADER_RE = re.compile(r'[ ]*%s[ ]*$' % BASE_RE)
|
||||
BLOCK_RE = re.compile(r'\n[ ]*%s[ ]*$' % BASE_RE)
|
||||
INLINE_RE = re.compile(r'^%s' % BASE_RE)
|
||||
NAME_RE = re.compile(r'[^A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d'
|
||||
r'\u037f-\u1fff\u200c-\u200d\u2070-\u218f\u2c00-\u2fef'
|
||||
r'\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd'
|
||||
r'\:\-\.0-9\u00b7\u0300-\u036f\u203f-\u2040]+')
|
||||
|
||||
def run(self, doc):
|
||||
for elem in doc.getiterator():
|
||||
if isBlockLevel(elem.tag):
|
||||
# Block level: check for attrs on last line of text
|
||||
RE = self.BLOCK_RE
|
||||
if isheader(elem):
|
||||
# header: check for attrs at end of line
|
||||
RE = self.HEADER_RE
|
||||
if len(elem) and elem[-1].tail:
|
||||
# has children. Get from tail of last child
|
||||
m = RE.search(elem[-1].tail)
|
||||
if m:
|
||||
self.assign_attrs(elem, m.group(1))
|
||||
elem[-1].tail = elem[-1].tail[:m.start()]
|
||||
if isheader(elem):
|
||||
# clean up trailing #s
|
||||
elem[-1].tail = elem[-1].tail.rstrip('#').rstrip()
|
||||
elif elem.text:
|
||||
# no children. Get from text.
|
||||
m = RE.search(elem.text)
|
||||
if m:
|
||||
self.assign_attrs(elem, m.group(1))
|
||||
elem.text = elem.text[:m.start()]
|
||||
if isheader(elem):
|
||||
# clean up trailing #s
|
||||
elem.text = elem.text.rstrip('#').rstrip()
|
||||
else:
|
||||
# inline: check for attrs at start of tail
|
||||
if elem.tail:
|
||||
m = self.INLINE_RE.match(elem.tail)
|
||||
if m:
|
||||
self.assign_attrs(elem, m.group(1))
|
||||
elem.tail = elem.tail[m.end():]
|
||||
|
||||
def assign_attrs(self, elem, attrs):
|
||||
""" Assign attrs to element. """
|
||||
for k, v in get_attrs(attrs):
|
||||
if k == '.':
|
||||
# add to class
|
||||
cls = elem.get('class')
|
||||
if cls:
|
||||
elem.set('class', '%s %s' % (cls, v))
|
||||
else:
|
||||
elem.set('class', v)
|
||||
else:
|
||||
# assign attr k with v
|
||||
elem.set(self.sanitize_name(k), v)
|
||||
|
||||
def sanitize_name(self, name):
|
||||
"""
|
||||
Sanitize name as 'an XML Name, minus the ":"'.
|
||||
See http://www.w3.org/TR/REC-xml-names/#NT-NCName
|
||||
"""
|
||||
return self.NAME_RE.sub('_', name)
|
||||
|
||||
|
||||
class AttrListExtension(Extension):
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
md.treeprocessors.add('attr_list', AttrListTreeprocessor(md), '>prettify')
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return AttrListExtension(configs=configs)
|
||||
@@ -0,0 +1,240 @@
|
||||
"""
|
||||
CodeHilite Extension for Python-Markdown
|
||||
========================================
|
||||
|
||||
Adds code/syntax highlighting to standard Python-Markdown code blocks.
|
||||
|
||||
Copyright 2006-2008 [Waylan Limberg](http://achinghead.com/).
|
||||
|
||||
Project website: <http://packages.python.org/Markdown/extensions/code_hilite.html>
|
||||
Contact: markdown@freewisdom.org
|
||||
|
||||
License: BSD (see ../LICENSE.md for details)
|
||||
|
||||
Dependencies:
|
||||
* [Python 2.3+](http://python.org/)
|
||||
* [Markdown 2.0+](http://packages.python.org/Markdown/)
|
||||
* [Pygments](http://pygments.org/)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..treeprocessors import Treeprocessor
|
||||
import warnings
|
||||
try:
|
||||
from pygments import highlight
|
||||
from pygments.lexers import get_lexer_by_name, guess_lexer, TextLexer
|
||||
from pygments.formatters import HtmlFormatter
|
||||
pygments = True
|
||||
except ImportError:
|
||||
pygments = False
|
||||
|
||||
# ------------------ The Main CodeHilite Class ----------------------
|
||||
class CodeHilite(object):
|
||||
"""
|
||||
Determine language of source code, and pass it into the pygments hilighter.
|
||||
|
||||
Basic Usage:
|
||||
>>> code = CodeHilite(src = 'some text')
|
||||
>>> html = code.hilite()
|
||||
|
||||
* src: Source string or any object with a .readline attribute.
|
||||
|
||||
* linenums: (Boolean) Set line numbering to 'on' (True), 'off' (False) or 'auto'(None).
|
||||
Set to 'auto' by default.
|
||||
|
||||
* guess_lang: (Boolean) Turn language auto-detection 'on' or 'off' (on by default).
|
||||
|
||||
* css_class: Set class name of wrapper div ('codehilite' by default).
|
||||
|
||||
Low Level Usage:
|
||||
>>> code = CodeHilite()
|
||||
>>> code.src = 'some text' # String or anything with a .readline attr.
|
||||
>>> code.linenos = True # True or False; Turns line numbering on or of.
|
||||
>>> html = code.hilite()
|
||||
|
||||
"""
|
||||
|
||||
def __init__(self, src=None, linenums=None, guess_lang=True,
|
||||
css_class="codehilite", lang=None, style='default',
|
||||
noclasses=False, tab_length=4):
|
||||
self.src = src
|
||||
self.lang = lang
|
||||
self.linenums = linenums
|
||||
self.guess_lang = guess_lang
|
||||
self.css_class = css_class
|
||||
self.style = style
|
||||
self.noclasses = noclasses
|
||||
self.tab_length = tab_length
|
||||
|
||||
def hilite(self):
|
||||
"""
|
||||
Pass code to the [Pygments](http://pygments.pocoo.org/) highliter with
|
||||
optional line numbers. The output should then be styled with css to
|
||||
your liking. No styles are applied by default - only styling hooks
|
||||
(i.e.: <span class="k">).
|
||||
|
||||
returns : A string of html.
|
||||
|
||||
"""
|
||||
|
||||
self.src = self.src.strip('\n')
|
||||
|
||||
if self.lang is None:
|
||||
self._getLang()
|
||||
|
||||
if pygments:
|
||||
try:
|
||||
lexer = get_lexer_by_name(self.lang)
|
||||
except ValueError:
|
||||
try:
|
||||
if self.guess_lang:
|
||||
lexer = guess_lexer(self.src)
|
||||
else:
|
||||
lexer = TextLexer()
|
||||
except ValueError:
|
||||
lexer = TextLexer()
|
||||
formatter = HtmlFormatter(linenos=self.linenums,
|
||||
cssclass=self.css_class,
|
||||
style=self.style,
|
||||
noclasses=self.noclasses)
|
||||
return highlight(self.src, lexer, formatter)
|
||||
else:
|
||||
# just escape and build markup usable by JS highlighting libs
|
||||
txt = self.src.replace('&', '&')
|
||||
txt = txt.replace('<', '<')
|
||||
txt = txt.replace('>', '>')
|
||||
txt = txt.replace('"', '"')
|
||||
classes = []
|
||||
if self.lang:
|
||||
classes.append('language-%s' % self.lang)
|
||||
if self.linenums:
|
||||
classes.append('linenums')
|
||||
class_str = ''
|
||||
if classes:
|
||||
class_str = ' class="%s"' % ' '.join(classes)
|
||||
return '<pre class="%s"><code%s>%s</code></pre>\n'% \
|
||||
(self.css_class, class_str, txt)
|
||||
|
||||
def _getLang(self):
|
||||
"""
|
||||
Determines language of a code block from shebang line and whether said
|
||||
line should be removed or left in place. If the sheband line contains a
|
||||
path (even a single /) then it is assumed to be a real shebang line and
|
||||
left alone. However, if no path is given (e.i.: #!python or :::python)
|
||||
then it is assumed to be a mock shebang for language identifitation of a
|
||||
code fragment and removed from the code block prior to processing for
|
||||
code highlighting. When a mock shebang (e.i: #!python) is found, line
|
||||
numbering is turned on. When colons are found in place of a shebang
|
||||
(e.i.: :::python), line numbering is left in the current state - off
|
||||
by default.
|
||||
|
||||
"""
|
||||
|
||||
import re
|
||||
|
||||
#split text into lines
|
||||
lines = self.src.split("\n")
|
||||
#pull first line to examine
|
||||
fl = lines.pop(0)
|
||||
|
||||
c = re.compile(r'''
|
||||
(?:(?:^::+)|(?P<shebang>^[#]!)) # Shebang or 2 or more colons.
|
||||
(?P<path>(?:/\w+)*[/ ])? # Zero or 1 path
|
||||
(?P<lang>[\w+-]*) # The language
|
||||
''', re.VERBOSE)
|
||||
# search first line for shebang
|
||||
m = c.search(fl)
|
||||
if m:
|
||||
# we have a match
|
||||
try:
|
||||
self.lang = m.group('lang').lower()
|
||||
except IndexError:
|
||||
self.lang = None
|
||||
if m.group('path'):
|
||||
# path exists - restore first line
|
||||
lines.insert(0, fl)
|
||||
if self.linenums is None and m.group('shebang'):
|
||||
# Overridable and Shebang exists - use line numbers
|
||||
self.linenums = True
|
||||
else:
|
||||
# No match
|
||||
lines.insert(0, fl)
|
||||
|
||||
self.src = "\n".join(lines).strip("\n")
|
||||
|
||||
|
||||
|
||||
# ------------------ The Markdown Extension -------------------------------
|
||||
class HiliteTreeprocessor(Treeprocessor):
|
||||
""" Hilight source code in code blocks. """
|
||||
|
||||
def run(self, root):
|
||||
""" Find code blocks and store in htmlStash. """
|
||||
blocks = root.getiterator('pre')
|
||||
for block in blocks:
|
||||
children = block.getchildren()
|
||||
if len(children) == 1 and children[0].tag == 'code':
|
||||
code = CodeHilite(children[0].text,
|
||||
linenums=self.config['linenums'],
|
||||
guess_lang=self.config['guess_lang'],
|
||||
css_class=self.config['css_class'],
|
||||
style=self.config['pygments_style'],
|
||||
noclasses=self.config['noclasses'],
|
||||
tab_length=self.markdown.tab_length)
|
||||
placeholder = self.markdown.htmlStash.store(code.hilite(),
|
||||
safe=True)
|
||||
# Clear codeblock in etree instance
|
||||
block.clear()
|
||||
# Change to p element which will later
|
||||
# be removed when inserting raw html
|
||||
block.tag = 'p'
|
||||
block.text = placeholder
|
||||
|
||||
|
||||
class CodeHiliteExtension(Extension):
|
||||
""" Add source code hilighting to markdown codeblocks. """
|
||||
|
||||
def __init__(self, configs):
|
||||
# define default configs
|
||||
self.config = {
|
||||
'linenums': [None, "Use lines numbers. True=yes, False=no, None=auto"],
|
||||
'force_linenos' : [False, "Depreciated! Use 'linenums' instead. Force line numbers - Default: False"],
|
||||
'guess_lang' : [True, "Automatic language detection - Default: True"],
|
||||
'css_class' : ["codehilite",
|
||||
"Set class name for wrapper <div> - Default: codehilite"],
|
||||
'pygments_style' : ['default', 'Pygments HTML Formatter Style (Colorscheme) - Default: default'],
|
||||
'noclasses': [False, 'Use inline styles instead of CSS classes - Default false']
|
||||
}
|
||||
|
||||
# Override defaults with user settings
|
||||
for key, value in configs:
|
||||
# convert strings to booleans
|
||||
if value == 'True': value = True
|
||||
if value == 'False': value = False
|
||||
if value == 'None': value = None
|
||||
|
||||
if key == 'force_linenos':
|
||||
warnings.warn('The "force_linenos" config setting'
|
||||
' to the CodeHilite extension is deprecrecated.'
|
||||
' Use "linenums" instead.', PendingDeprecationWarning)
|
||||
if value:
|
||||
# Carry 'force_linenos' over to new 'linenos'.
|
||||
self.setConfig('linenums', True)
|
||||
|
||||
self.setConfig(key, value)
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add HilitePostprocessor to Markdown instance. """
|
||||
hiliter = HiliteTreeprocessor(md)
|
||||
hiliter.config = self.getConfigs()
|
||||
md.treeprocessors.add("hilite", hiliter, "<inline")
|
||||
|
||||
md.registerExtension(self)
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return CodeHiliteExtension(configs=configs)
|
||||
|
||||
@@ -0,0 +1,118 @@
|
||||
"""
|
||||
Definition List Extension for Python-Markdown
|
||||
=============================================
|
||||
|
||||
Added parsing of Definition Lists to Python-Markdown.
|
||||
|
||||
A simple example:
|
||||
|
||||
Apple
|
||||
: Pomaceous fruit of plants of the genus Malus in
|
||||
the family Rosaceae.
|
||||
: An american computer company.
|
||||
|
||||
Orange
|
||||
: The fruit of an evergreen tree of the genus Citrus.
|
||||
|
||||
Copyright 2008 - [Waylan Limberg](http://achinghead.com)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..blockprocessors import BlockProcessor, ListIndentProcessor
|
||||
from ..util import etree
|
||||
import re
|
||||
|
||||
|
||||
class DefListProcessor(BlockProcessor):
|
||||
""" Process Definition Lists. """
|
||||
|
||||
RE = re.compile(r'(^|\n)[ ]{0,3}:[ ]{1,3}(.*?)(\n|$)')
|
||||
NO_INDENT_RE = re.compile(r'^[ ]{0,3}[^ :]')
|
||||
|
||||
def test(self, parent, block):
|
||||
return bool(self.RE.search(block))
|
||||
|
||||
def run(self, parent, blocks):
|
||||
|
||||
raw_block = blocks.pop(0)
|
||||
m = self.RE.search(raw_block)
|
||||
terms = [l.strip() for l in raw_block[:m.start()].split('\n') if l.strip()]
|
||||
block = raw_block[m.end():]
|
||||
no_indent = self.NO_INDENT_RE.match(block)
|
||||
if no_indent:
|
||||
d, theRest = (block, None)
|
||||
else:
|
||||
d, theRest = self.detab(block)
|
||||
if d:
|
||||
d = '%s\n%s' % (m.group(2), d)
|
||||
else:
|
||||
d = m.group(2)
|
||||
sibling = self.lastChild(parent)
|
||||
if not terms and sibling is None:
|
||||
# This is not a definition item. Most likely a paragraph that
|
||||
# starts with a colon at the begining of a document or list.
|
||||
blocks.insert(0, raw_block)
|
||||
return False
|
||||
if not terms and sibling.tag == 'p':
|
||||
# The previous paragraph contains the terms
|
||||
state = 'looselist'
|
||||
terms = sibling.text.split('\n')
|
||||
parent.remove(sibling)
|
||||
# Aquire new sibling
|
||||
sibling = self.lastChild(parent)
|
||||
else:
|
||||
state = 'list'
|
||||
|
||||
if sibling and sibling.tag == 'dl':
|
||||
# This is another item on an existing list
|
||||
dl = sibling
|
||||
if len(dl) and dl[-1].tag == 'dd' and len(dl[-1]):
|
||||
state = 'looselist'
|
||||
else:
|
||||
# This is a new list
|
||||
dl = etree.SubElement(parent, 'dl')
|
||||
# Add terms
|
||||
for term in terms:
|
||||
dt = etree.SubElement(dl, 'dt')
|
||||
dt.text = term
|
||||
# Add definition
|
||||
self.parser.state.set(state)
|
||||
dd = etree.SubElement(dl, 'dd')
|
||||
self.parser.parseBlocks(dd, [d])
|
||||
self.parser.state.reset()
|
||||
|
||||
if theRest:
|
||||
blocks.insert(0, theRest)
|
||||
|
||||
class DefListIndentProcessor(ListIndentProcessor):
|
||||
""" Process indented children of definition list items. """
|
||||
|
||||
ITEM_TYPES = ['dd']
|
||||
LIST_TYPES = ['dl']
|
||||
|
||||
def create_item(self, parent, block):
|
||||
""" Create a new dd and parse the block with it as the parent. """
|
||||
dd = etree.SubElement(parent, 'dd')
|
||||
self.parser.parseBlocks(dd, [block])
|
||||
|
||||
|
||||
|
||||
class DefListExtension(Extension):
|
||||
""" Add definition lists to Markdown. """
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add an instance of DefListProcessor to BlockParser. """
|
||||
md.parser.blockprocessors.add('defindent',
|
||||
DefListIndentProcessor(md.parser),
|
||||
'>indent')
|
||||
md.parser.blockprocessors.add('deflist',
|
||||
DefListProcessor(md.parser),
|
||||
'>ulist')
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return DefListExtension(configs=configs)
|
||||
|
||||
@@ -0,0 +1,54 @@
|
||||
"""
|
||||
Python-Markdown Extra Extension
|
||||
===============================
|
||||
|
||||
A compilation of various Python-Markdown extensions that imitates
|
||||
[PHP Markdown Extra](http://michelf.com/projects/php-markdown/extra/).
|
||||
|
||||
Note that each of the individual extensions still need to be available
|
||||
on your PYTHONPATH. This extension simply wraps them all up as a
|
||||
convenience so that only one extension needs to be listed when
|
||||
initiating Markdown. See the documentation for each individual
|
||||
extension for specifics about that extension.
|
||||
|
||||
In the event that one or more of the supported extensions are not
|
||||
available for import, Markdown will issue a warning and simply continue
|
||||
without that extension.
|
||||
|
||||
There may be additional extensions that are distributed with
|
||||
Python-Markdown that are not included here in Extra. Those extensions
|
||||
are not part of PHP Markdown Extra, and therefore, not part of
|
||||
Python-Markdown Extra. If you really would like Extra to include
|
||||
additional extensions, we suggest creating your own clone of Extra
|
||||
under a differant name. You could also edit the `extensions` global
|
||||
variable defined below, but be aware that such changes may be lost
|
||||
when you upgrade to any future version of Python-Markdown.
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
|
||||
extensions = ['smart_strong',
|
||||
'fenced_code',
|
||||
'footnotes',
|
||||
'attr_list',
|
||||
'def_list',
|
||||
'tables',
|
||||
'abbr',
|
||||
]
|
||||
|
||||
|
||||
class ExtraExtension(Extension):
|
||||
""" Add various extensions to Markdown class."""
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Register extension instances. """
|
||||
md.registerExtensions(extensions, self.config)
|
||||
if not md.safeMode:
|
||||
# Turn on processing of markdown text within raw html
|
||||
md.preprocessors['html_block'].markdown_in_raw = True
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return ExtraExtension(configs=dict(configs))
|
||||
@@ -0,0 +1,161 @@
|
||||
"""
|
||||
Fenced Code Extension for Python Markdown
|
||||
=========================================
|
||||
|
||||
This extension adds Fenced Code Blocks to Python-Markdown.
|
||||
|
||||
>>> import markdown
|
||||
>>> text = '''
|
||||
... A paragraph before a fenced code block:
|
||||
...
|
||||
... ~~~
|
||||
... Fenced code block
|
||||
... ~~~
|
||||
... '''
|
||||
>>> html = markdown.markdown(text, extensions=['fenced_code'])
|
||||
>>> print html
|
||||
<p>A paragraph before a fenced code block:</p>
|
||||
<pre><code>Fenced code block
|
||||
</code></pre>
|
||||
|
||||
Works with safe_mode also (we check this because we are using the HtmlStash):
|
||||
|
||||
>>> print markdown.markdown(text, extensions=['fenced_code'], safe_mode='replace')
|
||||
<p>A paragraph before a fenced code block:</p>
|
||||
<pre><code>Fenced code block
|
||||
</code></pre>
|
||||
|
||||
Include tilde's in a code block and wrap with blank lines:
|
||||
|
||||
>>> text = '''
|
||||
... ~~~~~~~~
|
||||
...
|
||||
... ~~~~
|
||||
... ~~~~~~~~'''
|
||||
>>> print markdown.markdown(text, extensions=['fenced_code'])
|
||||
<pre><code>
|
||||
~~~~
|
||||
</code></pre>
|
||||
|
||||
Language tags:
|
||||
|
||||
>>> text = '''
|
||||
... ~~~~{.python}
|
||||
... # Some python code
|
||||
... ~~~~'''
|
||||
>>> print markdown.markdown(text, extensions=['fenced_code'])
|
||||
<pre><code class="python"># Some python code
|
||||
</code></pre>
|
||||
|
||||
Optionally backticks instead of tildes as per how github's code block markdown is identified:
|
||||
|
||||
>>> text = '''
|
||||
... `````
|
||||
... # Arbitrary code
|
||||
... ~~~~~ # these tildes will not close the block
|
||||
... `````'''
|
||||
>>> print markdown.markdown(text, extensions=['fenced_code'])
|
||||
<pre><code># Arbitrary code
|
||||
~~~~~ # these tildes will not close the block
|
||||
</code></pre>
|
||||
|
||||
Copyright 2007-2008 [Waylan Limberg](http://achinghead.com/).
|
||||
|
||||
Project website: <http://packages.python.org/Markdown/extensions/fenced_code_blocks.html>
|
||||
Contact: markdown@freewisdom.org
|
||||
|
||||
License: BSD (see ../docs/LICENSE for details)
|
||||
|
||||
Dependencies:
|
||||
* [Python 2.4+](http://python.org)
|
||||
* [Markdown 2.0+](http://packages.python.org/Markdown/)
|
||||
* [Pygments (optional)](http://pygments.org)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..preprocessors import Preprocessor
|
||||
from .codehilite import CodeHilite, CodeHiliteExtension
|
||||
import re
|
||||
|
||||
# Global vars
|
||||
FENCED_BLOCK_RE = re.compile( \
|
||||
r'(?P<fence>^(?:~{3,}|`{3,}))[ ]*(\{?\.?(?P<lang>[a-zA-Z0-9_+-]*)\}?)?[ ]*\n(?P<code>.*?)(?<=\n)(?P=fence)[ ]*$',
|
||||
re.MULTILINE|re.DOTALL
|
||||
)
|
||||
CODE_WRAP = '<pre><code%s>%s</code></pre>'
|
||||
LANG_TAG = ' class="%s"'
|
||||
|
||||
class FencedCodeExtension(Extension):
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add FencedBlockPreprocessor to the Markdown instance. """
|
||||
md.registerExtension(self)
|
||||
|
||||
md.preprocessors.add('fenced_code_block',
|
||||
FencedBlockPreprocessor(md),
|
||||
">normalize_whitespace")
|
||||
|
||||
|
||||
class FencedBlockPreprocessor(Preprocessor):
|
||||
|
||||
def __init__(self, md):
|
||||
super(FencedBlockPreprocessor, self).__init__(md)
|
||||
|
||||
self.checked_for_codehilite = False
|
||||
self.codehilite_conf = {}
|
||||
|
||||
def run(self, lines):
|
||||
""" Match and store Fenced Code Blocks in the HtmlStash. """
|
||||
|
||||
# Check for code hilite extension
|
||||
if not self.checked_for_codehilite:
|
||||
for ext in self.markdown.registeredExtensions:
|
||||
if isinstance(ext, CodeHiliteExtension):
|
||||
self.codehilite_conf = ext.config
|
||||
break
|
||||
|
||||
self.checked_for_codehilite = True
|
||||
|
||||
text = "\n".join(lines)
|
||||
while 1:
|
||||
m = FENCED_BLOCK_RE.search(text)
|
||||
if m:
|
||||
lang = ''
|
||||
if m.group('lang'):
|
||||
lang = LANG_TAG % m.group('lang')
|
||||
|
||||
# If config is not empty, then the codehighlite extension
|
||||
# is enabled, so we call it to highlite the code
|
||||
if self.codehilite_conf:
|
||||
highliter = CodeHilite(m.group('code'),
|
||||
linenums=self.codehilite_conf['linenums'][0],
|
||||
guess_lang=self.codehilite_conf['guess_lang'][0],
|
||||
css_class=self.codehilite_conf['css_class'][0],
|
||||
style=self.codehilite_conf['pygments_style'][0],
|
||||
lang=(m.group('lang') or None),
|
||||
noclasses=self.codehilite_conf['noclasses'][0])
|
||||
|
||||
code = highliter.hilite()
|
||||
else:
|
||||
code = CODE_WRAP % (lang, self._escape(m.group('code')))
|
||||
|
||||
placeholder = self.markdown.htmlStash.store(code, safe=True)
|
||||
text = '%s\n%s\n%s'% (text[:m.start()], placeholder, text[m.end():])
|
||||
else:
|
||||
break
|
||||
return text.split("\n")
|
||||
|
||||
def _escape(self, txt):
|
||||
""" basic html escaping """
|
||||
txt = txt.replace('&', '&')
|
||||
txt = txt.replace('<', '<')
|
||||
txt = txt.replace('>', '>')
|
||||
txt = txt.replace('"', '"')
|
||||
return txt
|
||||
|
||||
|
||||
def makeExtension(configs=None):
|
||||
return FencedCodeExtension(configs=configs)
|
||||
@@ -0,0 +1,313 @@
|
||||
"""
|
||||
========================= FOOTNOTES =================================
|
||||
|
||||
This section adds footnote handling to markdown. It can be used as
|
||||
an example for extending python-markdown with relatively complex
|
||||
functionality. While in this case the extension is included inside
|
||||
the module itself, it could just as easily be added from outside the
|
||||
module. Not that all markdown classes above are ignorant about
|
||||
footnotes. All footnote functionality is provided separately and
|
||||
then added to the markdown instance at the run time.
|
||||
|
||||
Footnote functionality is attached by calling extendMarkdown()
|
||||
method of FootnoteExtension. The method also registers the
|
||||
extension to allow it's state to be reset by a call to reset()
|
||||
method.
|
||||
|
||||
Example:
|
||||
Footnotes[^1] have a label[^label] and a definition[^!DEF].
|
||||
|
||||
[^1]: This is a footnote
|
||||
[^label]: A footnote on "label"
|
||||
[^!DEF]: The footnote for definition
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..preprocessors import Preprocessor
|
||||
from ..inlinepatterns import Pattern
|
||||
from ..treeprocessors import Treeprocessor
|
||||
from ..postprocessors import Postprocessor
|
||||
from ..util import etree, text_type
|
||||
from ..odict import OrderedDict
|
||||
import re
|
||||
|
||||
FN_BACKLINK_TEXT = "zz1337820767766393qq"
|
||||
NBSP_PLACEHOLDER = "qq3936677670287331zz"
|
||||
DEF_RE = re.compile(r'[ ]{0,3}\[\^([^\]]*)\]:\s*(.*)')
|
||||
TABBED_RE = re.compile(r'((\t)|( ))(.*)')
|
||||
|
||||
class FootnoteExtension(Extension):
|
||||
""" Footnote Extension. """
|
||||
|
||||
def __init__ (self, configs):
|
||||
""" Setup configs. """
|
||||
self.config = {'PLACE_MARKER':
|
||||
["///Footnotes Go Here///",
|
||||
"The text string that marks where the footnotes go"],
|
||||
'UNIQUE_IDS':
|
||||
[False,
|
||||
"Avoid name collisions across "
|
||||
"multiple calls to reset()."],
|
||||
"BACKLINK_TEXT":
|
||||
["↩",
|
||||
"The text string that links from the footnote to the reader's place."]
|
||||
}
|
||||
|
||||
for key, value in configs:
|
||||
self.config[key][0] = value
|
||||
|
||||
# In multiple invocations, emit links that don't get tangled.
|
||||
self.unique_prefix = 0
|
||||
|
||||
self.reset()
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add pieces to Markdown. """
|
||||
md.registerExtension(self)
|
||||
self.parser = md.parser
|
||||
self.md = md
|
||||
self.sep = ':'
|
||||
if self.md.output_format in ['html5', 'xhtml5']:
|
||||
self.sep = '-'
|
||||
# Insert a preprocessor before ReferencePreprocessor
|
||||
md.preprocessors.add("footnote", FootnotePreprocessor(self),
|
||||
"<reference")
|
||||
# Insert an inline pattern before ImageReferencePattern
|
||||
FOOTNOTE_RE = r'\[\^([^\]]*)\]' # blah blah [^1] blah
|
||||
md.inlinePatterns.add("footnote", FootnotePattern(FOOTNOTE_RE, self),
|
||||
"<reference")
|
||||
# Insert a tree-processor that would actually add the footnote div
|
||||
# This must be before all other treeprocessors (i.e., inline and
|
||||
# codehilite) so they can run on the the contents of the div.
|
||||
md.treeprocessors.add("footnote", FootnoteTreeprocessor(self),
|
||||
"_begin")
|
||||
# Insert a postprocessor after amp_substitute oricessor
|
||||
md.postprocessors.add("footnote", FootnotePostprocessor(self),
|
||||
">amp_substitute")
|
||||
|
||||
def reset(self):
|
||||
""" Clear the footnotes on reset, and prepare for a distinct document. """
|
||||
self.footnotes = OrderedDict()
|
||||
self.unique_prefix += 1
|
||||
|
||||
def findFootnotesPlaceholder(self, root):
|
||||
""" Return ElementTree Element that contains Footnote placeholder. """
|
||||
def finder(element):
|
||||
for child in element:
|
||||
if child.text:
|
||||
if child.text.find(self.getConfig("PLACE_MARKER")) > -1:
|
||||
return child, element, True
|
||||
if child.tail:
|
||||
if child.tail.find(self.getConfig("PLACE_MARKER")) > -1:
|
||||
return child, element, False
|
||||
finder(child)
|
||||
return None
|
||||
|
||||
res = finder(root)
|
||||
return res
|
||||
|
||||
def setFootnote(self, id, text):
|
||||
""" Store a footnote for later retrieval. """
|
||||
self.footnotes[id] = text
|
||||
|
||||
def makeFootnoteId(self, id):
|
||||
""" Return footnote link id. """
|
||||
if self.getConfig("UNIQUE_IDS"):
|
||||
return 'fn%s%d-%s' % (self.sep, self.unique_prefix, id)
|
||||
else:
|
||||
return 'fn%s%s' % (self.sep, id)
|
||||
|
||||
def makeFootnoteRefId(self, id):
|
||||
""" Return footnote back-link id. """
|
||||
if self.getConfig("UNIQUE_IDS"):
|
||||
return 'fnref%s%d-%s' % (self.sep, self.unique_prefix, id)
|
||||
else:
|
||||
return 'fnref%s%s' % (self.sep, id)
|
||||
|
||||
def makeFootnotesDiv(self, root):
|
||||
""" Return div of footnotes as et Element. """
|
||||
|
||||
if not list(self.footnotes.keys()):
|
||||
return None
|
||||
|
||||
div = etree.Element("div")
|
||||
div.set('class', 'footnote')
|
||||
etree.SubElement(div, "hr")
|
||||
ol = etree.SubElement(div, "ol")
|
||||
|
||||
for id in self.footnotes.keys():
|
||||
li = etree.SubElement(ol, "li")
|
||||
li.set("id", self.makeFootnoteId(id))
|
||||
self.parser.parseChunk(li, self.footnotes[id])
|
||||
backlink = etree.Element("a")
|
||||
backlink.set("href", "#" + self.makeFootnoteRefId(id))
|
||||
if self.md.output_format not in ['html5', 'xhtml5']:
|
||||
backlink.set("rev", "footnote") # Invalid in HTML5
|
||||
backlink.set("class", "footnote-backref")
|
||||
backlink.set("title", "Jump back to footnote %d in the text" % \
|
||||
(self.footnotes.index(id)+1))
|
||||
backlink.text = FN_BACKLINK_TEXT
|
||||
|
||||
if li.getchildren():
|
||||
node = li[-1]
|
||||
if node.tag == "p":
|
||||
node.text = node.text + NBSP_PLACEHOLDER
|
||||
node.append(backlink)
|
||||
else:
|
||||
p = etree.SubElement(li, "p")
|
||||
p.append(backlink)
|
||||
return div
|
||||
|
||||
|
||||
class FootnotePreprocessor(Preprocessor):
|
||||
""" Find all footnote references and store for later use. """
|
||||
|
||||
def __init__ (self, footnotes):
|
||||
self.footnotes = footnotes
|
||||
|
||||
def run(self, lines):
|
||||
"""
|
||||
Loop through lines and find, set, and remove footnote definitions.
|
||||
|
||||
Keywords:
|
||||
|
||||
* lines: A list of lines of text
|
||||
|
||||
Return: A list of lines of text with footnote definitions removed.
|
||||
|
||||
"""
|
||||
newlines = []
|
||||
i = 0
|
||||
while True:
|
||||
m = DEF_RE.match(lines[i])
|
||||
if m:
|
||||
fn, _i = self.detectTabbed(lines[i+1:])
|
||||
fn.insert(0, m.group(2))
|
||||
i += _i-1 # skip past footnote
|
||||
self.footnotes.setFootnote(m.group(1), "\n".join(fn))
|
||||
else:
|
||||
newlines.append(lines[i])
|
||||
if len(lines) > i+1:
|
||||
i += 1
|
||||
else:
|
||||
break
|
||||
return newlines
|
||||
|
||||
def detectTabbed(self, lines):
|
||||
""" Find indented text and remove indent before further proccesing.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* lines: an array of strings
|
||||
|
||||
Returns: a list of post processed items and the index of last line.
|
||||
|
||||
"""
|
||||
items = []
|
||||
blank_line = False # have we encountered a blank line yet?
|
||||
i = 0 # to keep track of where we are
|
||||
|
||||
def detab(line):
|
||||
match = TABBED_RE.match(line)
|
||||
if match:
|
||||
return match.group(4)
|
||||
|
||||
for line in lines:
|
||||
if line.strip(): # Non-blank line
|
||||
detabbed_line = detab(line)
|
||||
if detabbed_line:
|
||||
items.append(detabbed_line)
|
||||
i += 1
|
||||
continue
|
||||
elif not blank_line and not DEF_RE.match(line):
|
||||
# not tabbed but still part of first par.
|
||||
items.append(line)
|
||||
i += 1
|
||||
continue
|
||||
else:
|
||||
return items, i+1
|
||||
|
||||
else: # Blank line: _maybe_ we are done.
|
||||
blank_line = True
|
||||
i += 1 # advance
|
||||
|
||||
# Find the next non-blank line
|
||||
for j in range(i, len(lines)):
|
||||
if lines[j].strip():
|
||||
next_line = lines[j]; break
|
||||
else:
|
||||
break # There is no more text; we are done.
|
||||
|
||||
# Check if the next non-blank line is tabbed
|
||||
if detab(next_line): # Yes, more work to do.
|
||||
items.append("")
|
||||
continue
|
||||
else:
|
||||
break # No, we are done.
|
||||
else:
|
||||
i += 1
|
||||
|
||||
return items, i
|
||||
|
||||
|
||||
class FootnotePattern(Pattern):
|
||||
""" InlinePattern for footnote markers in a document's body text. """
|
||||
|
||||
def __init__(self, pattern, footnotes):
|
||||
super(FootnotePattern, self).__init__(pattern)
|
||||
self.footnotes = footnotes
|
||||
|
||||
def handleMatch(self, m):
|
||||
id = m.group(2)
|
||||
if id in self.footnotes.footnotes.keys():
|
||||
sup = etree.Element("sup")
|
||||
a = etree.SubElement(sup, "a")
|
||||
sup.set('id', self.footnotes.makeFootnoteRefId(id))
|
||||
a.set('href', '#' + self.footnotes.makeFootnoteId(id))
|
||||
if self.footnotes.md.output_format not in ['html5', 'xhtml5']:
|
||||
a.set('rel', 'footnote') # invalid in HTML5
|
||||
a.set('class', 'footnote-ref')
|
||||
a.text = text_type(self.footnotes.footnotes.index(id) + 1)
|
||||
return sup
|
||||
else:
|
||||
return None
|
||||
|
||||
|
||||
class FootnoteTreeprocessor(Treeprocessor):
|
||||
""" Build and append footnote div to end of document. """
|
||||
|
||||
def __init__ (self, footnotes):
|
||||
self.footnotes = footnotes
|
||||
|
||||
def run(self, root):
|
||||
footnotesDiv = self.footnotes.makeFootnotesDiv(root)
|
||||
if footnotesDiv:
|
||||
result = self.footnotes.findFootnotesPlaceholder(root)
|
||||
if result:
|
||||
child, parent, isText = result
|
||||
ind = parent.getchildren().index(child)
|
||||
if isText:
|
||||
parent.remove(child)
|
||||
parent.insert(ind, footnotesDiv)
|
||||
else:
|
||||
parent.insert(ind + 1, footnotesDiv)
|
||||
child.tail = None
|
||||
else:
|
||||
root.append(footnotesDiv)
|
||||
|
||||
class FootnotePostprocessor(Postprocessor):
|
||||
""" Replace placeholders with html entities. """
|
||||
def __init__(self, footnotes):
|
||||
self.footnotes = footnotes
|
||||
|
||||
def run(self, text):
|
||||
text = text.replace(FN_BACKLINK_TEXT, self.footnotes.getConfig("BACKLINK_TEXT"))
|
||||
return text.replace(NBSP_PLACEHOLDER, " ")
|
||||
|
||||
def makeExtension(configs=[]):
|
||||
""" Return an instance of the FootnoteExtension """
|
||||
return FootnoteExtension(configs=configs)
|
||||
|
||||
@@ -0,0 +1,207 @@
|
||||
"""
|
||||
HeaderID Extension for Python-Markdown
|
||||
======================================
|
||||
|
||||
Auto-generate id attributes for HTML headers.
|
||||
|
||||
Basic usage:
|
||||
|
||||
>>> import markdown
|
||||
>>> text = "# Some Header #"
|
||||
>>> md = markdown.markdown(text, ['headerid'])
|
||||
>>> print md
|
||||
<h1 id="some-header">Some Header</h1>
|
||||
|
||||
All header IDs are unique:
|
||||
|
||||
>>> text = '''
|
||||
... #Header
|
||||
... #Header
|
||||
... #Header'''
|
||||
>>> md = markdown.markdown(text, ['headerid'])
|
||||
>>> print md
|
||||
<h1 id="header">Header</h1>
|
||||
<h1 id="header_1">Header</h1>
|
||||
<h1 id="header_2">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)'])
|
||||
>>> print md
|
||||
<h3 id="some-header">Some Header</h3>
|
||||
<h4 id="next-level">Next Level</h4>
|
||||
|
||||
Works with inline markup.
|
||||
|
||||
>>> text = '#Some *Header* with [markup](http://example.com).'
|
||||
>>> md = markdown.markdown(text, ['headerid'])
|
||||
>>> print md
|
||||
<h1 id="some-header-with-markup">Some <em>Header</em> with <a href="http://example.com">markup</a>.</h1>
|
||||
|
||||
Turn off auto generated IDs:
|
||||
|
||||
>>> text = '''
|
||||
... # Some Header
|
||||
... # Another Header'''
|
||||
>>> md = markdown.markdown(text, ['headerid(forceid=False)'])
|
||||
>>> print md
|
||||
<h1>Some Header</h1>
|
||||
<h1>Another Header</h1>
|
||||
|
||||
Use with MetaData extension:
|
||||
|
||||
>>> text = '''header_level: 2
|
||||
... header_forceid: Off
|
||||
...
|
||||
... # A Header'''
|
||||
>>> md = markdown.markdown(text, ['headerid', 'meta'])
|
||||
>>> print md
|
||||
<h2>A Header</h2>
|
||||
|
||||
Copyright 2007-2011 [Waylan Limberg](http://achinghead.com/).
|
||||
|
||||
Project website: <http://packages.python.org/Markdown/extensions/header_id.html>
|
||||
Contact: markdown@freewisdom.org
|
||||
|
||||
License: BSD (see ../docs/LICENSE for details)
|
||||
|
||||
Dependencies:
|
||||
* [Python 2.3+](http://python.org)
|
||||
* [Markdown 2.0+](http://packages.python.org/Markdown/)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..treeprocessors import Treeprocessor
|
||||
import re
|
||||
import logging
|
||||
try:
|
||||
import unicodedata
|
||||
has_unicodedata = True
|
||||
except:
|
||||
has_unicodedata = False
|
||||
DISALLOWED_RE = re.compile(r'[^a-z0-9]')
|
||||
|
||||
logger = logging.getLogger('MARKDOWN')
|
||||
|
||||
IDCOUNT_RE = re.compile(r'^(.*)_([0-9]+)$')
|
||||
|
||||
|
||||
def slugify(value, separator):
|
||||
""" Slugify a string, to make it URL friendly. """
|
||||
if has_unicodedata:
|
||||
value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore')
|
||||
value = re.sub('[^\w\s-]', '', value.decode('ascii')).strip().lower()
|
||||
return re.sub('[%s\s]+' % separator, separator, value)
|
||||
else:
|
||||
return separator.join(filter(None, re.split(DISALLOWED_RE, value.lower())))
|
||||
|
||||
|
||||
def unique(id, ids):
|
||||
""" Ensure id is unique in set of ids. Append '_1', '_2'... if not """
|
||||
while id in ids or not id:
|
||||
m = IDCOUNT_RE.match(id)
|
||||
if m:
|
||||
id = '%s_%d'% (m.group(1), int(m.group(2))+1)
|
||||
else:
|
||||
id = '%s_%d'% (id, 1)
|
||||
ids.add(id)
|
||||
return id
|
||||
|
||||
|
||||
def itertext(elem):
|
||||
""" Loop through all children and return text only.
|
||||
|
||||
Reimplements method of same name added to ElementTree in Python 2.7
|
||||
|
||||
"""
|
||||
if elem.text:
|
||||
yield elem.text
|
||||
for e in elem:
|
||||
for s in itertext(e):
|
||||
yield s
|
||||
if e.tail:
|
||||
yield e.tail
|
||||
|
||||
|
||||
class HeaderIdTreeprocessor(Treeprocessor):
|
||||
""" Assign IDs to headers. """
|
||||
|
||||
IDs = set()
|
||||
|
||||
def run(self, doc):
|
||||
start_level, force_id = self._get_meta()
|
||||
slugify = self.config['slugify']
|
||||
sep = self.config['separator']
|
||||
for elem in doc.getiterator():
|
||||
if elem.tag in ['h1', 'h2', 'h3', 'h4', 'h5', 'h6']:
|
||||
if force_id:
|
||||
if "id" in elem.attrib:
|
||||
id = elem.get('id')
|
||||
else:
|
||||
id = slugify(''.join(itertext(elem)), sep)
|
||||
elem.set('id', unique(id, self.IDs))
|
||||
if start_level:
|
||||
level = int(elem.tag[-1]) + start_level
|
||||
if level > 6:
|
||||
level = 6
|
||||
elem.tag = 'h%d' % level
|
||||
|
||||
|
||||
def _get_meta(self):
|
||||
""" Return meta data suported by this ext as a tuple """
|
||||
level = int(self.config['level']) - 1
|
||||
force = self._str2bool(self.config['forceid'])
|
||||
if hasattr(self.md, 'Meta'):
|
||||
if 'header_level' in self.md.Meta:
|
||||
level = int(self.md.Meta['header_level'][0]) - 1
|
||||
if 'header_forceid' in self.md.Meta:
|
||||
force = self._str2bool(self.md.Meta['header_forceid'][0])
|
||||
return level, force
|
||||
|
||||
def _str2bool(self, 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
|
||||
|
||||
|
||||
class HeaderIdExtension(Extension):
|
||||
def __init__(self, configs):
|
||||
# set defaults
|
||||
self.config = {
|
||||
'level' : ['1', 'Base level for headers.'],
|
||||
'forceid' : ['True', 'Force all headers to have an id.'],
|
||||
'separator' : ['-', 'Word separator.'],
|
||||
'slugify' : [slugify, 'Callable to generate anchors'],
|
||||
}
|
||||
|
||||
for key, value in configs:
|
||||
self.setConfig(key, value)
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
md.registerExtension(self)
|
||||
self.processor = HeaderIdTreeprocessor()
|
||||
self.processor.md = md
|
||||
self.processor.config = self.getConfigs()
|
||||
if 'attr_list' in md.treeprocessors.keys():
|
||||
# insert after attr_list treeprocessor
|
||||
md.treeprocessors.add('headerid', self.processor, '>attr_list')
|
||||
else:
|
||||
# insert after 'prettify' treeprocessor.
|
||||
md.treeprocessors.add('headerid', self.processor, '>prettify')
|
||||
|
||||
def reset(self):
|
||||
self.processor.IDs = set()
|
||||
|
||||
|
||||
def makeExtension(configs=None):
|
||||
return HeaderIdExtension(configs=configs)
|
||||
@@ -0,0 +1,93 @@
|
||||
"""
|
||||
Meta Data Extension for Python-Markdown
|
||||
=======================================
|
||||
|
||||
This extension adds Meta Data handling to markdown.
|
||||
|
||||
Basic Usage:
|
||||
|
||||
>>> import markdown
|
||||
>>> text = '''Title: A Test Doc.
|
||||
... Author: Waylan Limberg
|
||||
... John Doe
|
||||
... Blank_Data:
|
||||
...
|
||||
... The body. This is paragraph one.
|
||||
... '''
|
||||
>>> md = markdown.Markdown(['meta'])
|
||||
>>> print md.convert(text)
|
||||
<p>The body. This is paragraph one.</p>
|
||||
>>> print md.Meta
|
||||
{u'blank_data': [u''], u'author': [u'Waylan Limberg', u'John Doe'], u'title': [u'A Test Doc.']}
|
||||
|
||||
Make sure text without Meta Data still works (markdown < 1.6b returns a <p>).
|
||||
|
||||
>>> text = ' Some Code - not extra lines of meta data.'
|
||||
>>> md = markdown.Markdown(['meta'])
|
||||
>>> print md.convert(text)
|
||||
<pre><code>Some Code - not extra lines of meta data.
|
||||
</code></pre>
|
||||
>>> md.Meta
|
||||
{}
|
||||
|
||||
Copyright 2007-2008 [Waylan Limberg](http://achinghead.com).
|
||||
|
||||
Project website: <http://packages.python.org/Markdown/meta_data.html>
|
||||
Contact: markdown@freewisdom.org
|
||||
|
||||
License: BSD (see ../LICENSE.md for details)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..preprocessors import Preprocessor
|
||||
import re
|
||||
|
||||
# Global Vars
|
||||
META_RE = re.compile(r'^[ ]{0,3}(?P<key>[A-Za-z0-9_-]+):\s*(?P<value>.*)')
|
||||
META_MORE_RE = re.compile(r'^[ ]{4,}(?P<value>.*)')
|
||||
|
||||
class MetaExtension (Extension):
|
||||
""" Meta-Data extension for Python-Markdown. """
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add MetaPreprocessor to Markdown instance. """
|
||||
|
||||
md.preprocessors.add("meta", MetaPreprocessor(md), "_begin")
|
||||
|
||||
|
||||
class MetaPreprocessor(Preprocessor):
|
||||
""" Get Meta-Data. """
|
||||
|
||||
def run(self, lines):
|
||||
""" Parse Meta-Data and store in Markdown.Meta. """
|
||||
meta = {}
|
||||
key = None
|
||||
while 1:
|
||||
line = lines.pop(0)
|
||||
if line.strip() == '':
|
||||
break # blank line - done
|
||||
m1 = META_RE.match(line)
|
||||
if m1:
|
||||
key = m1.group('key').lower().strip()
|
||||
value = m1.group('value').strip()
|
||||
try:
|
||||
meta[key].append(value)
|
||||
except KeyError:
|
||||
meta[key] = [value]
|
||||
else:
|
||||
m2 = META_MORE_RE.match(line)
|
||||
if m2 and key:
|
||||
# Add another line to existing key
|
||||
meta[key].append(m2.group('value').strip())
|
||||
else:
|
||||
lines.insert(0, line)
|
||||
break # no meta data - done
|
||||
self.markdown.Meta = meta
|
||||
return lines
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return MetaExtension(configs=configs)
|
||||
@@ -0,0 +1,38 @@
|
||||
"""
|
||||
NL2BR Extension
|
||||
===============
|
||||
|
||||
A Python-Markdown extension to treat newlines as hard breaks; like
|
||||
GitHub-flavored Markdown does.
|
||||
|
||||
Usage:
|
||||
|
||||
>>> import markdown
|
||||
>>> print markdown.markdown('line 1\\nline 2', extensions=['nl2br'])
|
||||
<p>line 1<br />
|
||||
line 2</p>
|
||||
|
||||
Copyright 2011 [Brian Neal](http://deathofagremmie.com/)
|
||||
|
||||
Dependencies:
|
||||
* [Python 2.4+](http://python.org)
|
||||
* [Markdown 2.1+](http://packages.python.org/Markdown/)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..inlinepatterns import SubstituteTagPattern
|
||||
|
||||
BR_RE = r'\n'
|
||||
|
||||
class Nl2BrExtension(Extension):
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
br_tag = SubstituteTagPattern(BR_RE, 'br')
|
||||
md.inlinePatterns.add('nl', br_tag, '_end')
|
||||
|
||||
|
||||
def makeExtension(configs=None):
|
||||
return Nl2BrExtension(configs)
|
||||
@@ -0,0 +1,51 @@
|
||||
"""
|
||||
Sane List Extension for Python-Markdown
|
||||
=======================================
|
||||
|
||||
Modify the behavior of Lists in Python-Markdown t act in a sane manor.
|
||||
|
||||
In standard Markdown sytex, the following would constitute a single
|
||||
ordered list. However, with this extension, the output would include
|
||||
two lists, the first an ordered list and the second and unordered list.
|
||||
|
||||
1. ordered
|
||||
2. list
|
||||
|
||||
* unordered
|
||||
* list
|
||||
|
||||
Copyright 2011 - [Waylan Limberg](http://achinghead.com)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..blockprocessors import OListProcessor, UListProcessor
|
||||
import re
|
||||
|
||||
|
||||
class SaneOListProcessor(OListProcessor):
|
||||
|
||||
CHILD_RE = re.compile(r'^[ ]{0,3}((\d+\.))[ ]+(.*)')
|
||||
SIBLING_TAGS = ['ol']
|
||||
|
||||
|
||||
class SaneUListProcessor(UListProcessor):
|
||||
|
||||
CHILD_RE = re.compile(r'^[ ]{0,3}(([*+-]))[ ]+(.*)')
|
||||
SIBLING_TAGS = ['ul']
|
||||
|
||||
|
||||
class SaneListExtension(Extension):
|
||||
""" Add sane lists to Markdown. """
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Override existing Processors. """
|
||||
md.parser.blockprocessors['olist'] = SaneOListProcessor(md.parser)
|
||||
md.parser.blockprocessors['ulist'] = SaneUListProcessor(md.parser)
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return SaneListExtension(configs=configs)
|
||||
|
||||
@@ -0,0 +1,42 @@
|
||||
'''
|
||||
Smart_Strong Extension for Python-Markdown
|
||||
==========================================
|
||||
|
||||
This extention adds smarter handling of double underscores within words.
|
||||
|
||||
Simple Usage:
|
||||
|
||||
>>> import markdown
|
||||
>>> print markdown.markdown('Text with double__underscore__words.',
|
||||
... extensions=['smart_strong'])
|
||||
<p>Text with double__underscore__words.</p>
|
||||
>>> print markdown.markdown('__Strong__ still works.',
|
||||
... extensions=['smart_strong'])
|
||||
<p><strong>Strong</strong> still works.</p>
|
||||
>>> print markdown.markdown('__this__works__too__.',
|
||||
... extensions=['smart_strong'])
|
||||
<p><strong>this__works__too</strong>.</p>
|
||||
|
||||
Copyright 2011
|
||||
[Waylan Limberg](http://achinghead.com)
|
||||
|
||||
'''
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..inlinepatterns import SimpleTagPattern
|
||||
|
||||
SMART_STRONG_RE = r'(?<!\w)(_{2})(?!_)(.+?)(?<!_)\2(?!\w)'
|
||||
STRONG_RE = r'(\*{2})(.+?)\2'
|
||||
|
||||
class SmartEmphasisExtension(Extension):
|
||||
""" Add smart_emphasis extension to Markdown class."""
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Modify inline patterns. """
|
||||
md.inlinePatterns['strong'] = SimpleTagPattern(STRONG_RE, 'strong')
|
||||
md.inlinePatterns.add('strong2', SimpleTagPattern(SMART_STRONG_RE, 'strong'), '>emphasis2')
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return SmartEmphasisExtension(configs=dict(configs))
|
||||
@@ -0,0 +1,100 @@
|
||||
"""
|
||||
Tables Extension for Python-Markdown
|
||||
====================================
|
||||
|
||||
Added parsing of tables to Python-Markdown.
|
||||
|
||||
A simple example:
|
||||
|
||||
First Header | Second Header
|
||||
------------- | -------------
|
||||
Content Cell | Content Cell
|
||||
Content Cell | Content Cell
|
||||
|
||||
Copyright 2009 - [Waylan Limberg](http://achinghead.com)
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..blockprocessors import BlockProcessor
|
||||
from ..util import etree
|
||||
|
||||
class TableProcessor(BlockProcessor):
|
||||
""" Process Tables. """
|
||||
|
||||
def test(self, parent, block):
|
||||
rows = block.split('\n')
|
||||
return (len(rows) > 2 and '|' in rows[0] and
|
||||
'|' in rows[1] and '-' in rows[1] and
|
||||
rows[1].strip()[0] in ['|', ':', '-'])
|
||||
|
||||
def run(self, parent, blocks):
|
||||
""" Parse a table block and build table. """
|
||||
block = blocks.pop(0).split('\n')
|
||||
header = block[0].strip()
|
||||
seperator = block[1].strip()
|
||||
rows = block[2:]
|
||||
# Get format type (bordered by pipes or not)
|
||||
border = False
|
||||
if header.startswith('|'):
|
||||
border = True
|
||||
# Get alignment of columns
|
||||
align = []
|
||||
for c in self._split_row(seperator, border):
|
||||
if c.startswith(':') and c.endswith(':'):
|
||||
align.append('center')
|
||||
elif c.startswith(':'):
|
||||
align.append('left')
|
||||
elif c.endswith(':'):
|
||||
align.append('right')
|
||||
else:
|
||||
align.append(None)
|
||||
# Build table
|
||||
table = etree.SubElement(parent, 'table')
|
||||
thead = etree.SubElement(table, 'thead')
|
||||
self._build_row(header, thead, align, border)
|
||||
tbody = etree.SubElement(table, 'tbody')
|
||||
for row in rows:
|
||||
self._build_row(row.strip(), tbody, align, border)
|
||||
|
||||
def _build_row(self, row, parent, align, border):
|
||||
""" Given a row of text, build table cells. """
|
||||
tr = etree.SubElement(parent, 'tr')
|
||||
tag = 'td'
|
||||
if parent.tag == 'thead':
|
||||
tag = 'th'
|
||||
cells = self._split_row(row, border)
|
||||
# We use align here rather than cells to ensure every row
|
||||
# contains the same number of columns.
|
||||
for i, a in enumerate(align):
|
||||
c = etree.SubElement(tr, tag)
|
||||
try:
|
||||
c.text = cells[i].strip()
|
||||
except IndexError:
|
||||
c.text = ""
|
||||
if a:
|
||||
c.set('align', a)
|
||||
|
||||
def _split_row(self, row, border):
|
||||
""" split a row of text into list of cells. """
|
||||
if border:
|
||||
if row.startswith('|'):
|
||||
row = row[1:]
|
||||
if row.endswith('|'):
|
||||
row = row[:-1]
|
||||
return row.split('|')
|
||||
|
||||
|
||||
class TableExtension(Extension):
|
||||
""" Add tables to Markdown. """
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
""" Add an instance of TableProcessor to BlockParser. """
|
||||
md.parser.blockprocessors.add('table',
|
||||
TableProcessor(md.parser),
|
||||
'<hashheader')
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return TableExtension(configs=configs)
|
||||
@@ -0,0 +1,221 @@
|
||||
"""
|
||||
Table of Contents Extension for Python-Markdown
|
||||
* * *
|
||||
|
||||
(c) 2008 [Jack Miller](http://codezen.org)
|
||||
|
||||
Dependencies:
|
||||
* [Markdown 2.1+](http://packages.python.org/Markdown/)
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import Extension
|
||||
from ..treeprocessors import Treeprocessor
|
||||
from ..util import etree
|
||||
from .headerid import slugify, unique, itertext
|
||||
import re
|
||||
|
||||
|
||||
def order_toc_list(toc_list):
|
||||
"""Given an unsorted list with errors and skips, return a nested one.
|
||||
[{'level': 1}, {'level': 2}]
|
||||
=>
|
||||
[{'level': 1, 'children': [{'level': 2, 'children': []}]}]
|
||||
|
||||
A wrong list is also converted:
|
||||
[{'level': 2}, {'level': 1}]
|
||||
=>
|
||||
[{'level': 2, 'children': []}, {'level': 1, 'children': []}]
|
||||
"""
|
||||
|
||||
def build_correct(remaining_list, prev_elements=[{'level': 1000}]):
|
||||
|
||||
if not remaining_list:
|
||||
return [], []
|
||||
|
||||
current = remaining_list.pop(0)
|
||||
if not 'children' in current.keys():
|
||||
current['children'] = []
|
||||
|
||||
if not prev_elements:
|
||||
# This happens for instance with [8, 1, 1], ie. when some
|
||||
# header level is outside a scope. We treat it as a
|
||||
# top-level
|
||||
next_elements, children = build_correct(remaining_list, [current])
|
||||
current['children'].append(children)
|
||||
return [current] + next_elements, []
|
||||
|
||||
prev_element = prev_elements.pop()
|
||||
children = []
|
||||
next_elements = []
|
||||
# Is current part of the child list or next list?
|
||||
if current['level'] > prev_element['level']:
|
||||
#print "%d is a child of %d" % (current['level'], prev_element['level'])
|
||||
prev_elements.append(prev_element)
|
||||
prev_elements.append(current)
|
||||
prev_element['children'].append(current)
|
||||
next_elements2, children2 = build_correct(remaining_list, prev_elements)
|
||||
children += children2
|
||||
next_elements += next_elements2
|
||||
else:
|
||||
#print "%d is ancestor of %d" % (current['level'], prev_element['level'])
|
||||
if not prev_elements:
|
||||
#print "No previous elements, so appending to the next set"
|
||||
next_elements.append(current)
|
||||
prev_elements = [current]
|
||||
next_elements2, children2 = build_correct(remaining_list, prev_elements)
|
||||
current['children'].extend(children2)
|
||||
else:
|
||||
#print "Previous elements, comparing to those first"
|
||||
remaining_list.insert(0, current)
|
||||
next_elements2, children2 = build_correct(remaining_list, prev_elements)
|
||||
children.extend(children2)
|
||||
next_elements += next_elements2
|
||||
|
||||
return next_elements, children
|
||||
|
||||
ordered_list, __ = build_correct(toc_list)
|
||||
return ordered_list
|
||||
|
||||
|
||||
class TocTreeprocessor(Treeprocessor):
|
||||
|
||||
# Iterator wrapper to get parent and child all at once
|
||||
def iterparent(self, root):
|
||||
for parent in root.getiterator():
|
||||
for child in parent:
|
||||
yield parent, child
|
||||
|
||||
def add_anchor(self, c, elem_id): #@ReservedAssignment
|
||||
if self.use_anchors:
|
||||
anchor = etree.Element("a")
|
||||
anchor.text = c.text
|
||||
anchor.attrib["href"] = "#" + elem_id
|
||||
anchor.attrib["class"] = "toclink"
|
||||
c.text = ""
|
||||
for elem in c.getchildren():
|
||||
anchor.append(elem)
|
||||
c.remove(elem)
|
||||
c.append(anchor)
|
||||
|
||||
def build_toc_etree(self, div, toc_list):
|
||||
# Add title to the div
|
||||
if self.config["title"]:
|
||||
header = etree.SubElement(div, "span")
|
||||
header.attrib["class"] = "toctitle"
|
||||
header.text = self.config["title"]
|
||||
|
||||
def build_etree_ul(toc_list, parent):
|
||||
ul = etree.SubElement(parent, "ul")
|
||||
for item in toc_list:
|
||||
# List item link, to be inserted into the toc div
|
||||
li = etree.SubElement(ul, "li")
|
||||
link = etree.SubElement(li, "a")
|
||||
link.text = item.get('name', '')
|
||||
link.attrib["href"] = '#' + item.get('id', '')
|
||||
if item['children']:
|
||||
build_etree_ul(item['children'], li)
|
||||
return ul
|
||||
|
||||
return build_etree_ul(toc_list, div)
|
||||
|
||||
def run(self, doc):
|
||||
|
||||
div = etree.Element("div")
|
||||
div.attrib["class"] = "toc"
|
||||
header_rgx = re.compile("[Hh][123456]")
|
||||
|
||||
self.use_anchors = self.config["anchorlink"] in [1, '1', True, 'True', 'true']
|
||||
|
||||
# Get a list of id attributes
|
||||
used_ids = set()
|
||||
for c in doc.getiterator():
|
||||
if "id" in c.attrib:
|
||||
used_ids.add(c.attrib["id"])
|
||||
|
||||
toc_list = []
|
||||
marker_found = False
|
||||
for (p, c) in self.iterparent(doc):
|
||||
text = ''.join(itertext(c)).strip()
|
||||
if not text:
|
||||
continue
|
||||
|
||||
# To keep the output from screwing up the
|
||||
# validation by putting a <div> inside of a <p>
|
||||
# we actually replace the <p> in its entirety.
|
||||
# We do not allow the marker inside a header as that
|
||||
# would causes an enless loop of placing a new TOC
|
||||
# inside previously generated TOC.
|
||||
if c.text and c.text.strip() == self.config["marker"] and \
|
||||
not header_rgx.match(c.tag) and c.tag not in ['pre', 'code']:
|
||||
for i in range(len(p)):
|
||||
if p[i] == c:
|
||||
p[i] = div
|
||||
break
|
||||
marker_found = True
|
||||
|
||||
if header_rgx.match(c.tag):
|
||||
|
||||
# Do not override pre-existing ids
|
||||
if not "id" in c.attrib:
|
||||
elem_id = unique(self.config["slugify"](text, '-'), used_ids)
|
||||
c.attrib["id"] = elem_id
|
||||
else:
|
||||
elem_id = c.attrib["id"]
|
||||
|
||||
tag_level = int(c.tag[-1])
|
||||
|
||||
toc_list.append({'level': tag_level,
|
||||
'id': elem_id,
|
||||
'name': text})
|
||||
|
||||
self.add_anchor(c, elem_id)
|
||||
|
||||
toc_list_nested = order_toc_list(toc_list)
|
||||
self.build_toc_etree(div, toc_list_nested)
|
||||
prettify = self.markdown.treeprocessors.get('prettify')
|
||||
if prettify: prettify.run(div)
|
||||
if not marker_found:
|
||||
# serialize and attach to markdown instance.
|
||||
toc = self.markdown.serializer(div)
|
||||
for pp in self.markdown.postprocessors.values():
|
||||
toc = pp.run(toc)
|
||||
self.markdown.toc = toc
|
||||
|
||||
|
||||
class TocExtension(Extension):
|
||||
|
||||
TreeProcessorClass = TocTreeprocessor
|
||||
|
||||
def __init__(self, configs=[]):
|
||||
self.config = { "marker" : ["[TOC]",
|
||||
"Text to find and replace with Table of Contents -"
|
||||
"Defaults to \"[TOC]\""],
|
||||
"slugify" : [slugify,
|
||||
"Function to generate anchors based on header text-"
|
||||
"Defaults to the headerid ext's slugify function."],
|
||||
"title" : [None,
|
||||
"Title to insert into TOC <div> - "
|
||||
"Defaults to None"],
|
||||
"anchorlink" : [0,
|
||||
"1 if header should be a self link"
|
||||
"Defaults to 0"]}
|
||||
|
||||
for key, value in configs:
|
||||
self.setConfig(key, value)
|
||||
|
||||
def extendMarkdown(self, md, md_globals):
|
||||
tocext = self.TreeProcessorClass(md)
|
||||
tocext.config = self.getConfigs()
|
||||
# Headerid ext is set to '>prettify'. With this set to '_end',
|
||||
# it should always come after headerid ext (and honor ids assinged
|
||||
# by the header id extension) if both are used. Same goes for
|
||||
# attr_list extension. This must come last because we don't want
|
||||
# to redefine ids after toc is created. But we do want toc prettified.
|
||||
md.treeprocessors.add("toc", tocext, "_end")
|
||||
|
||||
|
||||
def makeExtension(configs={}):
|
||||
return TocExtension(configs=configs)
|
||||
@@ -0,0 +1,151 @@
|
||||
'''
|
||||
WikiLinks Extension for Python-Markdown
|
||||
======================================
|
||||
|
||||
Converts [[WikiLinks]] to relative links. Requires Python-Markdown 2.0+
|
||||
|
||||
Basic usage:
|
||||
|
||||
>>> import markdown
|
||||
>>> text = "Some text with a [[WikiLink]]."
|
||||
>>> html = markdown.markdown(text, ['wikilinks'])
|
||||
>>> print html
|
||||
<p>Some text with a <a class="wikilink" href="/WikiLink/">WikiLink</a>.</p>
|
||||
|
||||
Whitespace behavior:
|
||||
|
||||
>>> print markdown.markdown('[[ foo bar_baz ]]', ['wikilinks'])
|
||||
<p><a class="wikilink" href="/foo_bar_baz/">foo bar_baz</a></p>
|
||||
>>> print markdown.markdown('foo [[ ]] bar', ['wikilinks'])
|
||||
<p>foo bar</p>
|
||||
|
||||
To define custom settings the simple way:
|
||||
|
||||
>>> print markdown.markdown(text,
|
||||
... ['wikilinks(base_url=/wiki/,end_url=.html,html_class=foo)']
|
||||
... )
|
||||
<p>Some text with a <a class="foo" href="/wiki/WikiLink.html">WikiLink</a>.</p>
|
||||
|
||||
Custom settings the complex way:
|
||||
|
||||
>>> md = markdown.Markdown(
|
||||
... extensions = ['wikilinks'],
|
||||
... extension_configs = {'wikilinks': [
|
||||
... ('base_url', 'http://example.com/'),
|
||||
... ('end_url', '.html'),
|
||||
... ('html_class', '') ]},
|
||||
... safe_mode = True)
|
||||
>>> print md.convert(text)
|
||||
<p>Some text with a <a href="http://example.com/WikiLink.html">WikiLink</a>.</p>
|
||||
|
||||
Use MetaData with mdx_meta.py (Note the blank html_class in MetaData):
|
||||
|
||||
>>> text = """wiki_base_url: http://example.com/
|
||||
... wiki_end_url: .html
|
||||
... wiki_html_class:
|
||||
...
|
||||
... Some text with a [[WikiLink]]."""
|
||||
>>> md = markdown.Markdown(extensions=['meta', 'wikilinks'])
|
||||
>>> print md.convert(text)
|
||||
<p>Some text with a <a href="http://example.com/WikiLink.html">WikiLink</a>.</p>
|
||||
|
||||
MetaData should not carry over to next document:
|
||||
|
||||
>>> print md.convert("No [[MetaData]] here.")
|
||||
<p>No <a class="wikilink" href="/MetaData/">MetaData</a> here.</p>
|
||||
|
||||
Define a custom URL builder:
|
||||
|
||||
>>> def my_url_builder(label, base, end):
|
||||
... return '/bar/'
|
||||
>>> md = markdown.Markdown(extensions=['wikilinks'],
|
||||
... extension_configs={'wikilinks' : [('build_url', my_url_builder)]})
|
||||
>>> print md.convert('[[foo]]')
|
||||
<p><a class="wikilink" href="/bar/">foo</a></p>
|
||||
|
||||
From the command line:
|
||||
|
||||
python markdown.py -x wikilinks(base_url=http://example.com/,end_url=.html,html_class=foo) src.txt
|
||||
|
||||
By [Waylan Limberg](http://achinghead.com/).
|
||||
|
||||
License: [BSD](http://www.opensource.org/licenses/bsd-license.php)
|
||||
|
||||
Dependencies:
|
||||
* [Python 2.3+](http://python.org)
|
||||
* [Markdown 2.0+](http://packages.python.org/Markdown/)
|
||||
'''
|
||||
|
||||
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, configs):
|
||||
# set extension defaults
|
||||
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.'],
|
||||
}
|
||||
|
||||
# Override defaults with user settings
|
||||
for key, value in configs :
|
||||
self.setConfig(key, value)
|
||||
|
||||
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(configs=None) :
|
||||
return WikiLinkExtension(configs=configs)
|
||||
@@ -0,0 +1,483 @@
|
||||
"""
|
||||
INLINE PATTERNS
|
||||
=============================================================================
|
||||
|
||||
Inline patterns such as *emphasis* are handled by means of auxiliary
|
||||
objects, one per pattern. Pattern objects must be instances of classes
|
||||
that extend markdown.Pattern. Each pattern object uses a single regular
|
||||
expression and needs support the following methods:
|
||||
|
||||
pattern.getCompiledRegExp() # returns a regular expression
|
||||
|
||||
pattern.handleMatch(m) # takes a match object and returns
|
||||
# an ElementTree element or just plain text
|
||||
|
||||
All of python markdown's built-in patterns subclass from Pattern,
|
||||
but you can add additional patterns that don't.
|
||||
|
||||
Also note that all the regular expressions used by inline must
|
||||
capture the whole block. For this reason, they all start with
|
||||
'^(.*)' and end with '(.*)!'. In case with built-in expression
|
||||
Pattern takes care of adding the "^(.*)" and "(.*)!".
|
||||
|
||||
Finally, the order in which regular expressions are applied is very
|
||||
important - e.g. if we first replace http://.../ links with <a> tags
|
||||
and _then_ try to replace inline html, we would end up with a mess.
|
||||
So, we apply the expressions in the following order:
|
||||
|
||||
* escape and backticks have to go before everything else, so
|
||||
that we can preempt any markdown patterns by escaping them.
|
||||
|
||||
* then we handle auto-links (must be done before inline html)
|
||||
|
||||
* then we handle inline HTML. At this point we will simply
|
||||
replace all inline HTML strings with a placeholder and add
|
||||
the actual HTML to a hash.
|
||||
|
||||
* then inline images (must be done before links)
|
||||
|
||||
* then bracketed links, first regular then reference-style
|
||||
|
||||
* finally we apply strong and emphasis
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import util
|
||||
from . import odict
|
||||
import re
|
||||
try:
|
||||
from urllib.parse import urlparse, urlunparse
|
||||
except ImportError:
|
||||
from urlparse import urlparse, urlunparse
|
||||
try:
|
||||
from html import entities
|
||||
except ImportError:
|
||||
import htmlentitydefs as entities
|
||||
|
||||
|
||||
def build_inlinepatterns(md_instance, **kwargs):
|
||||
""" Build the default set of inline patterns for Markdown. """
|
||||
inlinePatterns = odict.OrderedDict()
|
||||
inlinePatterns["backtick"] = BacktickPattern(BACKTICK_RE)
|
||||
inlinePatterns["escape"] = EscapePattern(ESCAPE_RE, md_instance)
|
||||
inlinePatterns["reference"] = ReferencePattern(REFERENCE_RE, md_instance)
|
||||
inlinePatterns["link"] = LinkPattern(LINK_RE, md_instance)
|
||||
inlinePatterns["image_link"] = ImagePattern(IMAGE_LINK_RE, md_instance)
|
||||
inlinePatterns["image_reference"] = \
|
||||
ImageReferencePattern(IMAGE_REFERENCE_RE, md_instance)
|
||||
inlinePatterns["short_reference"] = \
|
||||
ReferencePattern(SHORT_REF_RE, md_instance)
|
||||
inlinePatterns["autolink"] = AutolinkPattern(AUTOLINK_RE, md_instance)
|
||||
inlinePatterns["automail"] = AutomailPattern(AUTOMAIL_RE, md_instance)
|
||||
inlinePatterns["linebreak"] = SubstituteTagPattern(LINE_BREAK_RE, 'br')
|
||||
if md_instance.safeMode != 'escape':
|
||||
inlinePatterns["html"] = HtmlPattern(HTML_RE, md_instance)
|
||||
inlinePatterns["entity"] = HtmlPattern(ENTITY_RE, md_instance)
|
||||
inlinePatterns["not_strong"] = SimpleTextPattern(NOT_STRONG_RE)
|
||||
inlinePatterns["strong_em"] = DoubleTagPattern(STRONG_EM_RE, 'strong,em')
|
||||
inlinePatterns["strong"] = SimpleTagPattern(STRONG_RE, 'strong')
|
||||
inlinePatterns["emphasis"] = SimpleTagPattern(EMPHASIS_RE, 'em')
|
||||
if md_instance.smart_emphasis:
|
||||
inlinePatterns["emphasis2"] = SimpleTagPattern(SMART_EMPHASIS_RE, 'em')
|
||||
else:
|
||||
inlinePatterns["emphasis2"] = SimpleTagPattern(EMPHASIS_2_RE, 'em')
|
||||
return inlinePatterns
|
||||
|
||||
"""
|
||||
The actual regular expressions for patterns
|
||||
-----------------------------------------------------------------------------
|
||||
"""
|
||||
|
||||
NOBRACKET = r'[^\]\[]*'
|
||||
BRK = ( r'\[('
|
||||
+ (NOBRACKET + r'(\[')*6
|
||||
+ (NOBRACKET+ r'\])*')*6
|
||||
+ NOBRACKET + r')\]' )
|
||||
NOIMG = r'(?<!\!)'
|
||||
|
||||
BACKTICK_RE = r'(?<!\\)(`+)(.+?)(?<!`)\2(?!`)' # `e=f()` or ``e=f("`")``
|
||||
ESCAPE_RE = r'\\(.)' # \<
|
||||
EMPHASIS_RE = r'(\*)([^\*]+)\2' # *emphasis*
|
||||
STRONG_RE = r'(\*{2}|_{2})(.+?)\2' # **strong**
|
||||
STRONG_EM_RE = r'(\*{3}|_{3})(.+?)\2' # ***strong***
|
||||
SMART_EMPHASIS_RE = r'(?<!\w)(_)(?!_)(.+?)(?<!_)\2(?!\w)' # _smart_emphasis_
|
||||
EMPHASIS_2_RE = r'(_)(.+?)\2' # _emphasis_
|
||||
LINK_RE = NOIMG + BRK + \
|
||||
r'''\(\s*(<.*?>|((?:(?:\(.*?\))|[^\(\)]))*?)\s*((['"])(.*?)\12\s*)?\)'''
|
||||
# [text](url) or [text](<url>) or [text](url "title")
|
||||
|
||||
IMAGE_LINK_RE = r'\!' + BRK + r'\s*\((<.*?>|([^\)]*))\)'
|
||||
#  or 
|
||||
REFERENCE_RE = NOIMG + BRK+ r'\s?\[([^\]]*)\]' # [Google][3]
|
||||
SHORT_REF_RE = NOIMG + r'\[([^\]]+)\]' # [Google]
|
||||
IMAGE_REFERENCE_RE = r'\!' + BRK + '\s?\[([^\]]*)\]' # ![alt text][2]
|
||||
NOT_STRONG_RE = r'((^| )(\*|_)( |$))' # stand-alone * or _
|
||||
AUTOLINK_RE = r'<((?:[Ff]|[Hh][Tt])[Tt][Pp][Ss]?://[^>]*)>' # <http://www.123.com>
|
||||
AUTOMAIL_RE = r'<([^> \!]*@[^> ]*)>' # <me@example.com>
|
||||
|
||||
HTML_RE = r'(\<([a-zA-Z/][^\>]*?|\!--.*?--)\>)' # <...>
|
||||
ENTITY_RE = r'(&[\#a-zA-Z0-9]*;)' # &
|
||||
LINE_BREAK_RE = r' \n' # two spaces at end of line
|
||||
|
||||
|
||||
def dequote(string):
|
||||
"""Remove quotes from around a string."""
|
||||
if ( ( string.startswith('"') and string.endswith('"'))
|
||||
or (string.startswith("'") and string.endswith("'")) ):
|
||||
return string[1:-1]
|
||||
else:
|
||||
return string
|
||||
|
||||
ATTR_RE = re.compile("\{@([^\}]*)=([^\}]*)}") # {@id=123}
|
||||
|
||||
def handleAttributes(text, parent):
|
||||
"""Set values of an element based on attribute definitions ({@id=123})."""
|
||||
def attributeCallback(match):
|
||||
parent.set(match.group(1), match.group(2).replace('\n', ' '))
|
||||
return ATTR_RE.sub(attributeCallback, text)
|
||||
|
||||
|
||||
"""
|
||||
The pattern classes
|
||||
-----------------------------------------------------------------------------
|
||||
"""
|
||||
|
||||
class Pattern(object):
|
||||
"""Base class that inline patterns subclass. """
|
||||
|
||||
def __init__(self, pattern, markdown_instance=None):
|
||||
"""
|
||||
Create an instant of an inline pattern.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* pattern: A regular expression that matches a pattern
|
||||
|
||||
"""
|
||||
self.pattern = pattern
|
||||
self.compiled_re = re.compile("^(.*?)%s(.*?)$" % pattern,
|
||||
re.DOTALL | re.UNICODE)
|
||||
|
||||
# Api for Markdown to pass safe_mode into instance
|
||||
self.safe_mode = False
|
||||
if markdown_instance:
|
||||
self.markdown = markdown_instance
|
||||
|
||||
def getCompiledRegExp(self):
|
||||
""" Return a compiled regular expression. """
|
||||
return self.compiled_re
|
||||
|
||||
def handleMatch(self, m):
|
||||
"""Return a ElementTree element from the given match.
|
||||
|
||||
Subclasses should override this method.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* m: A re match object containing a match of the pattern.
|
||||
|
||||
"""
|
||||
pass
|
||||
|
||||
def type(self):
|
||||
""" Return class name, to define pattern type """
|
||||
return self.__class__.__name__
|
||||
|
||||
def unescape(self, text):
|
||||
""" Return unescaped text given text with an inline placeholder. """
|
||||
try:
|
||||
stash = self.markdown.treeprocessors['inline'].stashed_nodes
|
||||
except KeyError:
|
||||
return text
|
||||
def itertext(el):
|
||||
' Reimplement Element.itertext for older python versions '
|
||||
tag = el.tag
|
||||
if not isinstance(tag, util.string_type) and tag is not None:
|
||||
return
|
||||
if el.text:
|
||||
yield el.text
|
||||
for e in el:
|
||||
for s in itertext(e):
|
||||
yield s
|
||||
if e.tail:
|
||||
yield e.tail
|
||||
def get_stash(m):
|
||||
id = m.group(1)
|
||||
if id in stash:
|
||||
value = stash.get(id)
|
||||
if isinstance(value, util.string_type):
|
||||
return value
|
||||
else:
|
||||
# An etree Element - return text content only
|
||||
return ''.join(itertext(value))
|
||||
return util.INLINE_PLACEHOLDER_RE.sub(get_stash, text)
|
||||
|
||||
|
||||
class SimpleTextPattern(Pattern):
|
||||
""" Return a simple text of group(2) of a Pattern. """
|
||||
def handleMatch(self, m):
|
||||
text = m.group(2)
|
||||
if text == util.INLINE_PLACEHOLDER_PREFIX:
|
||||
return None
|
||||
return text
|
||||
|
||||
|
||||
class EscapePattern(Pattern):
|
||||
""" Return an escaped character. """
|
||||
|
||||
def handleMatch(self, m):
|
||||
char = m.group(2)
|
||||
if char in self.markdown.ESCAPED_CHARS:
|
||||
return '%s%s%s' % (util.STX, ord(char), util.ETX)
|
||||
else:
|
||||
return '\\%s' % char
|
||||
|
||||
|
||||
class SimpleTagPattern(Pattern):
|
||||
"""
|
||||
Return element of type `tag` with a text attribute of group(3)
|
||||
of a Pattern.
|
||||
|
||||
"""
|
||||
def __init__ (self, pattern, tag):
|
||||
Pattern.__init__(self, pattern)
|
||||
self.tag = tag
|
||||
|
||||
def handleMatch(self, m):
|
||||
el = util.etree.Element(self.tag)
|
||||
el.text = m.group(3)
|
||||
return el
|
||||
|
||||
|
||||
class SubstituteTagPattern(SimpleTagPattern):
|
||||
""" Return an element of type `tag` with no children. """
|
||||
def handleMatch (self, m):
|
||||
return util.etree.Element(self.tag)
|
||||
|
||||
|
||||
class BacktickPattern(Pattern):
|
||||
""" Return a `<code>` element containing the matching text. """
|
||||
def __init__ (self, pattern):
|
||||
Pattern.__init__(self, pattern)
|
||||
self.tag = "code"
|
||||
|
||||
def handleMatch(self, m):
|
||||
el = util.etree.Element(self.tag)
|
||||
el.text = util.AtomicString(m.group(3).strip())
|
||||
return el
|
||||
|
||||
|
||||
class DoubleTagPattern(SimpleTagPattern):
|
||||
"""Return a ElementTree element nested in tag2 nested in tag1.
|
||||
|
||||
Useful for strong emphasis etc.
|
||||
|
||||
"""
|
||||
def handleMatch(self, m):
|
||||
tag1, tag2 = self.tag.split(",")
|
||||
el1 = util.etree.Element(tag1)
|
||||
el2 = util.etree.SubElement(el1, tag2)
|
||||
el2.text = m.group(3)
|
||||
return el1
|
||||
|
||||
|
||||
class HtmlPattern(Pattern):
|
||||
""" Store raw inline html and return a placeholder. """
|
||||
def handleMatch (self, m):
|
||||
rawhtml = self.unescape(m.group(2))
|
||||
place_holder = self.markdown.htmlStash.store(rawhtml)
|
||||
return place_holder
|
||||
|
||||
def unescape(self, text):
|
||||
""" Return unescaped text given text with an inline placeholder. """
|
||||
try:
|
||||
stash = self.markdown.treeprocessors['inline'].stashed_nodes
|
||||
except KeyError:
|
||||
return text
|
||||
def get_stash(m):
|
||||
id = m.group(1)
|
||||
value = stash.get(id)
|
||||
if value is not None:
|
||||
try:
|
||||
return self.markdown.serializer(value)
|
||||
except:
|
||||
return '\%s' % value
|
||||
|
||||
return util.INLINE_PLACEHOLDER_RE.sub(get_stash, text)
|
||||
|
||||
|
||||
class LinkPattern(Pattern):
|
||||
""" Return a link element from the given match. """
|
||||
def handleMatch(self, m):
|
||||
el = util.etree.Element("a")
|
||||
el.text = m.group(2)
|
||||
title = m.group(13)
|
||||
href = m.group(9)
|
||||
|
||||
if href:
|
||||
if href[0] == "<":
|
||||
href = href[1:-1]
|
||||
el.set("href", self.sanitize_url(self.unescape(href.strip())))
|
||||
else:
|
||||
el.set("href", "")
|
||||
|
||||
if title:
|
||||
title = dequote(self.unescape(title))
|
||||
el.set("title", title)
|
||||
return el
|
||||
|
||||
def sanitize_url(self, url):
|
||||
"""
|
||||
Sanitize a url against xss attacks in "safe_mode".
|
||||
|
||||
Rather than specifically blacklisting `javascript:alert("XSS")` and all
|
||||
its aliases (see <http://ha.ckers.org/xss.html>), we whitelist known
|
||||
safe url formats. Most urls contain a network location, however some
|
||||
are known not to (i.e.: mailto links). Script urls do not contain a
|
||||
location. Additionally, for `javascript:...`, the scheme would be
|
||||
"javascript" but some aliases will appear to `urlparse()` to have no
|
||||
scheme. On top of that relative links (i.e.: "foo/bar.html") have no
|
||||
scheme. Therefore we must check "path", "parameters", "query" and
|
||||
"fragment" for any literal colons. We don't check "scheme" for colons
|
||||
because it *should* never have any and "netloc" must allow the form:
|
||||
`username:password@host:port`.
|
||||
|
||||
"""
|
||||
url = url.replace(' ', '%20')
|
||||
if not self.markdown.safeMode:
|
||||
# Return immediately bipassing parsing.
|
||||
return url
|
||||
|
||||
try:
|
||||
scheme, netloc, path, params, query, fragment = url = urlparse(url)
|
||||
except ValueError:
|
||||
# Bad url - so bad it couldn't be parsed.
|
||||
return ''
|
||||
|
||||
locless_schemes = ['', 'mailto', 'news']
|
||||
allowed_schemes = locless_schemes + ['http', 'https', 'ftp', 'ftps']
|
||||
if scheme not in allowed_schemes:
|
||||
# Not a known (allowed) scheme. Not safe.
|
||||
return ''
|
||||
|
||||
if netloc == '' and scheme not in locless_schemes:
|
||||
# This should not happen. Treat as suspect.
|
||||
return ''
|
||||
|
||||
for part in url[2:]:
|
||||
if ":" in part:
|
||||
# A colon in "path", "parameters", "query" or "fragment" is suspect.
|
||||
return ''
|
||||
|
||||
# Url passes all tests. Return url as-is.
|
||||
return urlunparse(url)
|
||||
|
||||
class ImagePattern(LinkPattern):
|
||||
""" Return a img element from the given match. """
|
||||
def handleMatch(self, m):
|
||||
el = util.etree.Element("img")
|
||||
src_parts = m.group(9).split()
|
||||
if src_parts:
|
||||
src = src_parts[0]
|
||||
if src[0] == "<" and src[-1] == ">":
|
||||
src = src[1:-1]
|
||||
el.set('src', self.sanitize_url(self.unescape(src)))
|
||||
else:
|
||||
el.set('src', "")
|
||||
if len(src_parts) > 1:
|
||||
el.set('title', dequote(self.unescape(" ".join(src_parts[1:]))))
|
||||
|
||||
if self.markdown.enable_attributes:
|
||||
truealt = handleAttributes(m.group(2), el)
|
||||
else:
|
||||
truealt = m.group(2)
|
||||
|
||||
el.set('alt', self.unescape(truealt))
|
||||
return el
|
||||
|
||||
class ReferencePattern(LinkPattern):
|
||||
""" Match to a stored reference and return link element. """
|
||||
|
||||
NEWLINE_CLEANUP_RE = re.compile(r'[ ]?\n', re.MULTILINE)
|
||||
|
||||
def handleMatch(self, m):
|
||||
try:
|
||||
id = m.group(9).lower()
|
||||
except IndexError:
|
||||
id = None
|
||||
if not id:
|
||||
# if we got something like "[Google][]" or "[Goggle]"
|
||||
# we'll use "google" as the id
|
||||
id = m.group(2).lower()
|
||||
|
||||
# Clean up linebreaks in id
|
||||
id = self.NEWLINE_CLEANUP_RE.sub(' ', id)
|
||||
if not id in self.markdown.references: # ignore undefined refs
|
||||
return None
|
||||
href, title = self.markdown.references[id]
|
||||
|
||||
text = m.group(2)
|
||||
return self.makeTag(href, title, text)
|
||||
|
||||
def makeTag(self, href, title, text):
|
||||
el = util.etree.Element('a')
|
||||
|
||||
el.set('href', self.sanitize_url(href))
|
||||
if title:
|
||||
el.set('title', title)
|
||||
|
||||
el.text = text
|
||||
return el
|
||||
|
||||
|
||||
class ImageReferencePattern(ReferencePattern):
|
||||
""" Match to a stored reference and return img element. """
|
||||
def makeTag(self, href, title, text):
|
||||
el = util.etree.Element("img")
|
||||
el.set("src", self.sanitize_url(href))
|
||||
if title:
|
||||
el.set("title", title)
|
||||
|
||||
if self.markdown.enable_attributes:
|
||||
text = handleAttributes(text, el)
|
||||
|
||||
el.set("alt", self.unescape(text))
|
||||
return el
|
||||
|
||||
|
||||
class AutolinkPattern(Pattern):
|
||||
""" Return a link Element given an autolink (`<http://example/com>`). """
|
||||
def handleMatch(self, m):
|
||||
el = util.etree.Element("a")
|
||||
el.set('href', self.unescape(m.group(2)))
|
||||
el.text = util.AtomicString(m.group(2))
|
||||
return el
|
||||
|
||||
class AutomailPattern(Pattern):
|
||||
"""
|
||||
Return a mailto link Element given an automail link (`<foo@example.com>`).
|
||||
"""
|
||||
def handleMatch(self, m):
|
||||
el = util.etree.Element('a')
|
||||
email = self.unescape(m.group(2))
|
||||
if email.startswith("mailto:"):
|
||||
email = email[len("mailto:"):]
|
||||
|
||||
def codepoint2name(code):
|
||||
"""Return entity definition by code, or the code if not defined."""
|
||||
entity = entities.codepoint2name.get(code)
|
||||
if entity:
|
||||
return "%s%s;" % (util.AMP_SUBSTITUTE, entity)
|
||||
else:
|
||||
return "%s#%d;" % (util.AMP_SUBSTITUTE, code)
|
||||
|
||||
letters = [codepoint2name(ord(letter)) for letter in email]
|
||||
el.text = util.AtomicString(''.join(letters))
|
||||
|
||||
mailto = "mailto:" + email
|
||||
mailto = "".join([util.AMP_SUBSTITUTE + '#%d;' %
|
||||
ord(letter) for letter in mailto])
|
||||
el.set('href', mailto)
|
||||
return el
|
||||
|
||||
@@ -0,0 +1,194 @@
|
||||
from __future__ import unicode_literals
|
||||
from __future__ import absolute_import
|
||||
from . import util
|
||||
|
||||
from copy import deepcopy
|
||||
|
||||
def iteritems_compat(d):
|
||||
"""Return an iterator over the (key, value) pairs of a dictionary.
|
||||
Copied from `six` module."""
|
||||
return iter(getattr(d, _iteritems)())
|
||||
|
||||
class OrderedDict(dict):
|
||||
"""
|
||||
A dictionary that keeps its keys in the order in which they're inserted.
|
||||
|
||||
Copied from Django's SortedDict with some modifications.
|
||||
|
||||
"""
|
||||
def __new__(cls, *args, **kwargs):
|
||||
instance = super(OrderedDict, cls).__new__(cls, *args, **kwargs)
|
||||
instance.keyOrder = []
|
||||
return instance
|
||||
|
||||
def __init__(self, data=None):
|
||||
if data is None or isinstance(data, dict):
|
||||
data = data or []
|
||||
super(OrderedDict, self).__init__(data)
|
||||
self.keyOrder = list(data) if data else []
|
||||
else:
|
||||
super(OrderedDict, self).__init__()
|
||||
super_set = super(OrderedDict, self).__setitem__
|
||||
for key, value in data:
|
||||
# Take the ordering from first key
|
||||
if key not in self:
|
||||
self.keyOrder.append(key)
|
||||
# But override with last value in data (dict() does this)
|
||||
super_set(key, value)
|
||||
|
||||
def __deepcopy__(self, memo):
|
||||
return self.__class__([(key, deepcopy(value, memo))
|
||||
for key, value in self.items()])
|
||||
|
||||
def __copy__(self):
|
||||
# The Python's default copy implementation will alter the state
|
||||
# of self. The reason for this seems complex but is likely related to
|
||||
# subclassing dict.
|
||||
return self.copy()
|
||||
|
||||
def __setitem__(self, key, value):
|
||||
if key not in self:
|
||||
self.keyOrder.append(key)
|
||||
super(OrderedDict, self).__setitem__(key, value)
|
||||
|
||||
def __delitem__(self, key):
|
||||
super(OrderedDict, self).__delitem__(key)
|
||||
self.keyOrder.remove(key)
|
||||
|
||||
def __iter__(self):
|
||||
return iter(self.keyOrder)
|
||||
|
||||
def __reversed__(self):
|
||||
return reversed(self.keyOrder)
|
||||
|
||||
def pop(self, k, *args):
|
||||
result = super(OrderedDict, self).pop(k, *args)
|
||||
try:
|
||||
self.keyOrder.remove(k)
|
||||
except ValueError:
|
||||
# Key wasn't in the dictionary in the first place. No problem.
|
||||
pass
|
||||
return result
|
||||
|
||||
def popitem(self):
|
||||
result = super(OrderedDict, self).popitem()
|
||||
self.keyOrder.remove(result[0])
|
||||
return result
|
||||
|
||||
def _iteritems(self):
|
||||
for key in self.keyOrder:
|
||||
yield key, self[key]
|
||||
|
||||
def _iterkeys(self):
|
||||
for key in self.keyOrder:
|
||||
yield key
|
||||
|
||||
def _itervalues(self):
|
||||
for key in self.keyOrder:
|
||||
yield self[key]
|
||||
|
||||
if util.PY3:
|
||||
items = _iteritems
|
||||
keys = _iterkeys
|
||||
values = _itervalues
|
||||
else:
|
||||
iteritems = _iteritems
|
||||
iterkeys = _iterkeys
|
||||
itervalues = _itervalues
|
||||
|
||||
def items(self):
|
||||
return [(k, self[k]) for k in self.keyOrder]
|
||||
|
||||
def keys(self):
|
||||
return self.keyOrder[:]
|
||||
|
||||
def values(self):
|
||||
return [self[k] for k in self.keyOrder]
|
||||
|
||||
def update(self, dict_):
|
||||
for k, v in iteritems_compat(dict_):
|
||||
self[k] = v
|
||||
|
||||
def setdefault(self, key, default):
|
||||
if key not in self:
|
||||
self.keyOrder.append(key)
|
||||
return super(OrderedDict, self).setdefault(key, default)
|
||||
|
||||
def value_for_index(self, index):
|
||||
"""Returns the value of the item at the given zero-based index."""
|
||||
return self[self.keyOrder[index]]
|
||||
|
||||
def insert(self, index, key, value):
|
||||
"""Inserts the key, value pair before the item with the given index."""
|
||||
if key in self.keyOrder:
|
||||
n = self.keyOrder.index(key)
|
||||
del self.keyOrder[n]
|
||||
if n < index:
|
||||
index -= 1
|
||||
self.keyOrder.insert(index, key)
|
||||
super(OrderedDict, self).__setitem__(key, value)
|
||||
|
||||
def copy(self):
|
||||
"""Returns a copy of this object."""
|
||||
# This way of initializing the copy means it works for subclasses, too.
|
||||
return self.__class__(self)
|
||||
|
||||
def __repr__(self):
|
||||
"""
|
||||
Replaces the normal dict.__repr__ with a version that returns the keys
|
||||
in their Ordered order.
|
||||
"""
|
||||
return '{%s}' % ', '.join(['%r: %r' % (k, v) for k, v in iteritems_compat(self)])
|
||||
|
||||
def clear(self):
|
||||
super(OrderedDict, self).clear()
|
||||
self.keyOrder = []
|
||||
|
||||
def index(self, key):
|
||||
""" Return the index of a given key. """
|
||||
try:
|
||||
return self.keyOrder.index(key)
|
||||
except ValueError:
|
||||
raise ValueError("Element '%s' was not found in OrderedDict" % key)
|
||||
|
||||
def index_for_location(self, location):
|
||||
""" Return index or None for a given location. """
|
||||
if location == '_begin':
|
||||
i = 0
|
||||
elif location == '_end':
|
||||
i = None
|
||||
elif location.startswith('<') or location.startswith('>'):
|
||||
i = self.index(location[1:])
|
||||
if location.startswith('>'):
|
||||
if i >= len(self):
|
||||
# last item
|
||||
i = None
|
||||
else:
|
||||
i += 1
|
||||
else:
|
||||
raise ValueError('Not a valid location: "%s". Location key '
|
||||
'must start with a ">" or "<".' % location)
|
||||
return i
|
||||
|
||||
def add(self, key, value, location):
|
||||
""" Insert by key location. """
|
||||
i = self.index_for_location(location)
|
||||
if i is not None:
|
||||
self.insert(i, key, value)
|
||||
else:
|
||||
self.__setitem__(key, value)
|
||||
|
||||
def link(self, key, location):
|
||||
""" Change location of an existing item. """
|
||||
n = self.keyOrder.index(key)
|
||||
del self.keyOrder[n]
|
||||
try:
|
||||
i = self.index_for_location(location)
|
||||
if i is not None:
|
||||
self.keyOrder.insert(i, key)
|
||||
else:
|
||||
self.keyOrder.append(key)
|
||||
except Exception as e:
|
||||
# restore to prevent data loss and reraise
|
||||
self.keyOrder.insert(n, key)
|
||||
raise e
|
||||
@@ -0,0 +1,104 @@
|
||||
"""
|
||||
POST-PROCESSORS
|
||||
=============================================================================
|
||||
|
||||
Markdown also allows post-processors, which are similar to preprocessors in
|
||||
that they need to implement a "run" method. However, they are run after core
|
||||
processing.
|
||||
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import util
|
||||
from . import odict
|
||||
import re
|
||||
|
||||
|
||||
def build_postprocessors(md_instance, **kwargs):
|
||||
""" Build the default postprocessors for Markdown. """
|
||||
postprocessors = odict.OrderedDict()
|
||||
postprocessors["raw_html"] = RawHtmlPostprocessor(md_instance)
|
||||
postprocessors["amp_substitute"] = AndSubstitutePostprocessor()
|
||||
postprocessors["unescape"] = UnescapePostprocessor()
|
||||
return postprocessors
|
||||
|
||||
|
||||
class Postprocessor(util.Processor):
|
||||
"""
|
||||
Postprocessors are run after the ElementTree it converted back into text.
|
||||
|
||||
Each Postprocessor implements a "run" method that takes a pointer to a
|
||||
text string, modifies it as necessary and returns a text string.
|
||||
|
||||
Postprocessors must extend markdown.Postprocessor.
|
||||
|
||||
"""
|
||||
|
||||
def run(self, text):
|
||||
"""
|
||||
Subclasses of Postprocessor should implement a `run` method, which
|
||||
takes the html document as a single text string and returns a
|
||||
(possibly modified) string.
|
||||
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class RawHtmlPostprocessor(Postprocessor):
|
||||
""" Restore raw html to the document. """
|
||||
|
||||
def run(self, text):
|
||||
""" Iterate over html stash and restore "safe" html. """
|
||||
for i in range(self.markdown.htmlStash.html_counter):
|
||||
html, safe = self.markdown.htmlStash.rawHtmlBlocks[i]
|
||||
if self.markdown.safeMode and not safe:
|
||||
if str(self.markdown.safeMode).lower() == 'escape':
|
||||
html = self.escape(html)
|
||||
elif str(self.markdown.safeMode).lower() == 'remove':
|
||||
html = ''
|
||||
else:
|
||||
html = self.markdown.html_replacement_text
|
||||
if self.isblocklevel(html) and (safe or not self.markdown.safeMode):
|
||||
text = text.replace("<p>%s</p>" %
|
||||
(self.markdown.htmlStash.get_placeholder(i)),
|
||||
html + "\n")
|
||||
text = text.replace(self.markdown.htmlStash.get_placeholder(i),
|
||||
html)
|
||||
return text
|
||||
|
||||
def escape(self, html):
|
||||
""" Basic html escaping """
|
||||
html = html.replace('&', '&')
|
||||
html = html.replace('<', '<')
|
||||
html = html.replace('>', '>')
|
||||
return html.replace('"', '"')
|
||||
|
||||
def isblocklevel(self, html):
|
||||
m = re.match(r'^\<\/?([^ >]+)', html)
|
||||
if m:
|
||||
if m.group(1)[0] in ('!', '?', '@', '%'):
|
||||
# Comment, php etc...
|
||||
return True
|
||||
return util.isBlockLevel(m.group(1))
|
||||
return False
|
||||
|
||||
|
||||
class AndSubstitutePostprocessor(Postprocessor):
|
||||
""" Restore valid entities """
|
||||
|
||||
def run(self, text):
|
||||
text = text.replace(util.AMP_SUBSTITUTE, "&")
|
||||
return text
|
||||
|
||||
|
||||
class UnescapePostprocessor(Postprocessor):
|
||||
""" Restore escaped chars """
|
||||
|
||||
RE = re.compile('%s(\d+)%s' % (util.STX, util.ETX))
|
||||
|
||||
def unescape(self, m):
|
||||
return util.int2str(int(m.group(1)))
|
||||
|
||||
def run(self, text):
|
||||
return self.RE.sub(self.unescape, text)
|
||||
@@ -0,0 +1,298 @@
|
||||
"""
|
||||
PRE-PROCESSORS
|
||||
=============================================================================
|
||||
|
||||
Preprocessors work on source text before we start doing anything too
|
||||
complicated.
|
||||
"""
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import util
|
||||
from . import odict
|
||||
import re
|
||||
|
||||
|
||||
def build_preprocessors(md_instance, **kwargs):
|
||||
""" Build the default set of preprocessors used by Markdown. """
|
||||
preprocessors = odict.OrderedDict()
|
||||
preprocessors['normalize_whitespace'] = NormalizeWhitespace(md_instance)
|
||||
if md_instance.safeMode != 'escape':
|
||||
preprocessors["html_block"] = HtmlBlockPreprocessor(md_instance)
|
||||
preprocessors["reference"] = ReferencePreprocessor(md_instance)
|
||||
return preprocessors
|
||||
|
||||
|
||||
class Preprocessor(util.Processor):
|
||||
"""
|
||||
Preprocessors are run after the text is broken into lines.
|
||||
|
||||
Each preprocessor implements a "run" method that takes a pointer to a
|
||||
list of lines of the document, modifies it as necessary and returns
|
||||
either the same pointer or a pointer to a new list.
|
||||
|
||||
Preprocessors must extend markdown.Preprocessor.
|
||||
|
||||
"""
|
||||
def run(self, lines):
|
||||
"""
|
||||
Each subclass of Preprocessor should override the `run` method, which
|
||||
takes the document as a list of strings split by newlines and returns
|
||||
the (possibly modified) list of lines.
|
||||
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class NormalizeWhitespace(Preprocessor):
|
||||
""" Normalize whitespace for consistant parsing. """
|
||||
|
||||
def run(self, lines):
|
||||
source = '\n'.join(lines)
|
||||
source = source.replace(util.STX, "").replace(util.ETX, "")
|
||||
source = source.replace("\r\n", "\n").replace("\r", "\n") + "\n\n"
|
||||
source = source.expandtabs(self.markdown.tab_length)
|
||||
source = re.sub(r'(?<=\n) +\n', '\n', source)
|
||||
return source.split('\n')
|
||||
|
||||
|
||||
class HtmlBlockPreprocessor(Preprocessor):
|
||||
"""Remove html blocks from the text and store them for later retrieval."""
|
||||
|
||||
right_tag_patterns = ["</%s>", "%s>"]
|
||||
attrs_pattern = r"""
|
||||
\s+(?P<attr>[^>"'/= ]+)=(?P<q>['"])(?P<value>.*?)(?P=q) # attr="value"
|
||||
| # OR
|
||||
\s+(?P<attr1>[^>"'/= ]+)=(?P<value1>[^> ]+) # attr=value
|
||||
| # OR
|
||||
\s+(?P<attr2>[^>"'/= ]+) # attr
|
||||
"""
|
||||
left_tag_pattern = r'^\<(?P<tag>[^> ]+)(?P<attrs>(%s)*)\s*\/?\>?' % attrs_pattern
|
||||
attrs_re = re.compile(attrs_pattern, re.VERBOSE)
|
||||
left_tag_re = re.compile(left_tag_pattern, re.VERBOSE)
|
||||
markdown_in_raw = False
|
||||
|
||||
def _get_left_tag(self, block):
|
||||
m = self.left_tag_re.match(block)
|
||||
if m:
|
||||
tag = m.group('tag')
|
||||
raw_attrs = m.group('attrs')
|
||||
attrs = {}
|
||||
if raw_attrs:
|
||||
for ma in self.attrs_re.finditer(raw_attrs):
|
||||
if ma.group('attr'):
|
||||
if ma.group('value'):
|
||||
attrs[ma.group('attr').strip()] = ma.group('value')
|
||||
else:
|
||||
attrs[ma.group('attr').strip()] = ""
|
||||
elif ma.group('attr1'):
|
||||
if ma.group('value1'):
|
||||
attrs[ma.group('attr1').strip()] = ma.group('value1')
|
||||
else:
|
||||
attrs[ma.group('attr1').strip()] = ""
|
||||
elif ma.group('attr2'):
|
||||
attrs[ma.group('attr2').strip()] = ""
|
||||
return tag, len(m.group(0)), attrs
|
||||
else:
|
||||
tag = block[1:].split(">", 1)[0].lower()
|
||||
return tag, len(tag)+2, {}
|
||||
|
||||
def _recursive_tagfind(self, ltag, rtag, start_index, block):
|
||||
while 1:
|
||||
i = block.find(rtag, start_index)
|
||||
if i == -1:
|
||||
return -1
|
||||
j = block.find(ltag, start_index)
|
||||
# if no ltag, or rtag found before another ltag, return index
|
||||
if (j > i or j == -1):
|
||||
return i + len(rtag)
|
||||
# another ltag found before rtag, use end of ltag as starting
|
||||
# point and search again
|
||||
j = block.find('>', j)
|
||||
start_index = self._recursive_tagfind(ltag, rtag, j + 1, block)
|
||||
if start_index == -1:
|
||||
# HTML potentially malformed- ltag has no corresponding
|
||||
# rtag
|
||||
return -1
|
||||
|
||||
def _get_right_tag(self, left_tag, left_index, block):
|
||||
for p in self.right_tag_patterns:
|
||||
tag = p % left_tag
|
||||
i = self._recursive_tagfind("<%s" % left_tag, tag, left_index, block)
|
||||
if i > 2:
|
||||
return tag.lstrip("<").rstrip(">"), i
|
||||
return block.rstrip()[-left_index:-1].lower(), len(block)
|
||||
|
||||
def _equal_tags(self, left_tag, right_tag):
|
||||
if left_tag[0] in ['?', '@', '%']: # handle PHP, etc.
|
||||
return True
|
||||
if ("/" + left_tag) == right_tag:
|
||||
return True
|
||||
if (right_tag == "--" and left_tag == "--"):
|
||||
return True
|
||||
elif left_tag == right_tag[1:] \
|
||||
and right_tag[0] == "/":
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
|
||||
def _is_oneliner(self, tag):
|
||||
return (tag in ['hr', 'hr/'])
|
||||
|
||||
def run(self, lines):
|
||||
text = "\n".join(lines)
|
||||
new_blocks = []
|
||||
text = text.rsplit("\n\n")
|
||||
items = []
|
||||
left_tag = ''
|
||||
right_tag = ''
|
||||
in_tag = False # flag
|
||||
|
||||
while text:
|
||||
block = text[0]
|
||||
if block.startswith("\n"):
|
||||
block = block[1:]
|
||||
text = text[1:]
|
||||
|
||||
if block.startswith("\n"):
|
||||
block = block[1:]
|
||||
|
||||
if not in_tag:
|
||||
if block.startswith("<") and len(block.strip()) > 1:
|
||||
|
||||
if block[1] == "!":
|
||||
# is a comment block
|
||||
left_tag, left_index, attrs = "--", 2, {}
|
||||
else:
|
||||
left_tag, left_index, attrs = self._get_left_tag(block)
|
||||
right_tag, data_index = self._get_right_tag(left_tag,
|
||||
left_index,
|
||||
block)
|
||||
# keep checking conditions below and maybe just append
|
||||
|
||||
if data_index < len(block) \
|
||||
and (util.isBlockLevel(left_tag)
|
||||
or left_tag == '--'):
|
||||
text.insert(0, block[data_index:])
|
||||
block = block[:data_index]
|
||||
|
||||
if not (util.isBlockLevel(left_tag) \
|
||||
or block[1] in ["!", "?", "@", "%"]):
|
||||
new_blocks.append(block)
|
||||
continue
|
||||
|
||||
if self._is_oneliner(left_tag):
|
||||
new_blocks.append(block.strip())
|
||||
continue
|
||||
|
||||
if block.rstrip().endswith(">") \
|
||||
and self._equal_tags(left_tag, right_tag):
|
||||
if self.markdown_in_raw and 'markdown' in attrs.keys():
|
||||
start = re.sub(r'\smarkdown(=[\'"]?[^> ]*[\'"]?)?',
|
||||
'', block[:left_index])
|
||||
end = block[-len(right_tag)-2:]
|
||||
block = block[left_index:-len(right_tag)-2]
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(start))
|
||||
new_blocks.append(block)
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(end))
|
||||
else:
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(block.strip()))
|
||||
continue
|
||||
else:
|
||||
# if is block level tag and is not complete
|
||||
|
||||
if util.isBlockLevel(left_tag) or left_tag == "--" \
|
||||
and not block.rstrip().endswith(">"):
|
||||
items.append(block.strip())
|
||||
in_tag = True
|
||||
else:
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(block.strip()))
|
||||
|
||||
continue
|
||||
|
||||
new_blocks.append(block)
|
||||
|
||||
else:
|
||||
items.append(block)
|
||||
|
||||
right_tag, data_index = self._get_right_tag(left_tag, 0, block)
|
||||
|
||||
if self._equal_tags(left_tag, right_tag):
|
||||
# if find closing tag
|
||||
|
||||
if data_index < len(block):
|
||||
# we have more text after right_tag
|
||||
items[-1] = block[:data_index]
|
||||
text.insert(0, block[data_index:])
|
||||
|
||||
in_tag = False
|
||||
if self.markdown_in_raw and 'markdown' in attrs.keys():
|
||||
start = re.sub(r'\smarkdown(=[\'"]?[^> ]*[\'"]?)?',
|
||||
'', items[0][:left_index])
|
||||
items[0] = items[0][left_index:]
|
||||
end = items[-1][-len(right_tag)-2:]
|
||||
items[-1] = items[-1][:-len(right_tag)-2]
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(start))
|
||||
new_blocks.extend(items)
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(end))
|
||||
else:
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store('\n\n'.join(items)))
|
||||
items = []
|
||||
|
||||
if items:
|
||||
if self.markdown_in_raw and 'markdown' in attrs.keys():
|
||||
start = re.sub(r'\smarkdown(=[\'"]?[^> ]*[\'"]?)?',
|
||||
'', items[0][:left_index])
|
||||
items[0] = items[0][left_index:]
|
||||
end = items[-1][-len(right_tag)-2:]
|
||||
items[-1] = items[-1][:-len(right_tag)-2]
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(start))
|
||||
new_blocks.extend(items)
|
||||
if end.strip():
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store(end))
|
||||
else:
|
||||
new_blocks.append(
|
||||
self.markdown.htmlStash.store('\n\n'.join(items)))
|
||||
#new_blocks.append(self.markdown.htmlStash.store('\n\n'.join(items)))
|
||||
new_blocks.append('\n')
|
||||
|
||||
new_text = "\n\n".join(new_blocks)
|
||||
return new_text.split("\n")
|
||||
|
||||
|
||||
class ReferencePreprocessor(Preprocessor):
|
||||
""" Remove reference definitions from text and store for later use. """
|
||||
|
||||
TITLE = r'[ ]*(\"(.*)\"|\'(.*)\'|\((.*)\))[ ]*'
|
||||
RE = re.compile(r'^[ ]{0,3}\[([^\]]*)\]:\s*([^ ]*)[ ]*(%s)?$' % TITLE, re.DOTALL)
|
||||
TITLE_RE = re.compile(r'^%s$' % TITLE)
|
||||
|
||||
def run (self, lines):
|
||||
new_text = [];
|
||||
while lines:
|
||||
line = lines.pop(0)
|
||||
m = self.RE.match(line)
|
||||
if m:
|
||||
id = m.group(1).strip().lower()
|
||||
link = m.group(2).lstrip('<').rstrip('>')
|
||||
t = m.group(5) or m.group(6) or m.group(7)
|
||||
if not t:
|
||||
# Check next line for title
|
||||
tm = self.TITLE_RE.match(lines[0])
|
||||
if tm:
|
||||
lines.pop(0)
|
||||
t = tm.group(2) or tm.group(3) or tm.group(4)
|
||||
self.markdown.references[id] = (link, t)
|
||||
else:
|
||||
new_text.append(line)
|
||||
|
||||
return new_text #+ "\n"
|
||||
@@ -0,0 +1,277 @@
|
||||
# markdown/searializers.py
|
||||
#
|
||||
# Add x/html serialization to Elementree
|
||||
# Taken from ElementTree 1.3 preview with slight modifications
|
||||
#
|
||||
# Copyright (c) 1999-2007 by Fredrik Lundh. All rights reserved.
|
||||
#
|
||||
# fredrik@pythonware.com
|
||||
# http://www.pythonware.com
|
||||
#
|
||||
# --------------------------------------------------------------------
|
||||
# The ElementTree toolkit is
|
||||
#
|
||||
# Copyright (c) 1999-2007 by Fredrik Lundh
|
||||
#
|
||||
# By obtaining, using, and/or copying this software and/or its
|
||||
# associated documentation, you agree that you have read, understood,
|
||||
# and will comply with the following terms and conditions:
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and
|
||||
# its associated documentation for any purpose and without fee is
|
||||
# hereby granted, provided that the above copyright notice appears in
|
||||
# all copies, and that both that copyright notice and this permission
|
||||
# notice appear in supporting documentation, and that the name of
|
||||
# Secret Labs AB or the author not be used in advertising or publicity
|
||||
# pertaining to distribution of the software without specific, written
|
||||
# prior permission.
|
||||
#
|
||||
# SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
|
||||
# TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT-
|
||||
# ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR
|
||||
# BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
|
||||
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
||||
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
||||
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
# OF THIS SOFTWARE.
|
||||
# --------------------------------------------------------------------
|
||||
|
||||
|
||||
from __future__ import absolute_import
|
||||
from __future__ import unicode_literals
|
||||
from . import util
|
||||
ElementTree = util.etree.ElementTree
|
||||
QName = util.etree.QName
|
||||
if hasattr(util.etree, 'test_comment'):
|
||||
Comment = util.etree.test_comment
|
||||
else:
|
||||
Comment = util.etree.Comment
|
||||
PI = util.etree.PI
|
||||
ProcessingInstruction = util.etree.ProcessingInstruction
|
||||
|
||||
__all__ = ['to_html_string', 'to_xhtml_string']
|
||||
|
||||
HTML_EMPTY = ("area", "base", "basefont", "br", "col", "frame", "hr",
|
||||
"img", "input", "isindex", "link", "meta" "param")
|
||||
|
||||
try:
|
||||
HTML_EMPTY = set(HTML_EMPTY)
|
||||
except NameError:
|
||||
pass
|
||||
|
||||
_namespace_map = {
|
||||
# "well-known" namespace prefixes
|
||||
"http://www.w3.org/XML/1998/namespace": "xml",
|
||||
"http://www.w3.org/1999/xhtml": "html",
|
||||
"http://www.w3.org/1999/02/22-rdf-syntax-ns#": "rdf",
|
||||
"http://schemas.xmlsoap.org/wsdl/": "wsdl",
|
||||
# xml schema
|
||||
"http://www.w3.org/2001/XMLSchema": "xs",
|
||||
"http://www.w3.org/2001/XMLSchema-instance": "xsi",
|
||||
# dublic core
|
||||
"http://purl.org/dc/elements/1.1/": "dc",
|
||||
}
|
||||
|
||||
|
||||
def _raise_serialization_error(text):
|
||||
raise TypeError(
|
||||
"cannot serialize %r (type %s)" % (text, type(text).__name__)
|
||||
)
|
||||
|
||||
def _encode(text, encoding):
|
||||
try:
|
||||
return text.encode(encoding, "xmlcharrefreplace")
|
||||
except (TypeError, AttributeError):
|
||||
_raise_serialization_error(text)
|
||||
|
||||
def _escape_cdata(text):
|
||||
# escape character data
|
||||
try:
|
||||
# it's worth avoiding do-nothing calls for strings that are
|
||||
# shorter than 500 character, or so. assume that's, by far,
|
||||
# the most common case in most applications.
|
||||
if "&" in text:
|
||||
text = text.replace("&", "&")
|
||||
if "<" in text:
|
||||
text = text.replace("<", "<")
|
||||
if ">" in text:
|
||||
text = text.replace(">", ">")
|
||||
return text
|
||||
except (TypeError, AttributeError):
|
||||
_raise_serialization_error(text)
|
||||
|
||||
|
||||
def _escape_attrib(text):
|
||||
# escape attribute value
|
||||
try:
|
||||
if "&" in text:
|
||||
text = text.replace("&", "&")
|
||||
if "<" in text:
|
||||
text = text.replace("<", "<")
|
||||
if ">" in text:
|
||||
text = text.replace(">", ">")
|
||||
if "\"" in text:
|
||||
text = text.replace("\"", """)
|
||||
if "\n" in text:
|
||||
text = text.replace("\n", " ")
|
||||
return text
|
||||
except (TypeError, AttributeError):
|
||||
_raise_serialization_error(text)
|
||||
|
||||
def _escape_attrib_html(text):
|
||||
# escape attribute value
|
||||
try:
|
||||
if "&" in text:
|
||||
text = text.replace("&", "&")
|
||||
if "<" in text:
|
||||
text = text.replace("<", "<")
|
||||
if ">" in text:
|
||||
text = text.replace(">", ">")
|
||||
if "\"" in text:
|
||||
text = text.replace("\"", """)
|
||||
return text
|
||||
except (TypeError, AttributeError):
|
||||
_raise_serialization_error(text)
|
||||
|
||||
|
||||
def _serialize_html(write, elem, qnames, namespaces, format):
|
||||
tag = elem.tag
|
||||
text = elem.text
|
||||
if tag is Comment:
|
||||
write("<!--%s-->" % _escape_cdata(text))
|
||||
elif tag is ProcessingInstruction:
|
||||
write("<?%s?>" % _escape_cdata(text))
|
||||
else:
|
||||
tag = qnames[tag]
|
||||
if tag is None:
|
||||
if text:
|
||||
write(_escape_cdata(text))
|
||||
for e in elem:
|
||||
_serialize_html(write, e, qnames, None, format)
|
||||
else:
|
||||
write("<" + tag)
|
||||
items = elem.items()
|
||||
if items or namespaces:
|
||||
items.sort() # lexical order
|
||||
for k, v in items:
|
||||
if isinstance(k, QName):
|
||||
k = k.text
|
||||
if isinstance(v, QName):
|
||||
v = qnames[v.text]
|
||||
else:
|
||||
v = _escape_attrib_html(v)
|
||||
if qnames[k] == v and format == 'html':
|
||||
# handle boolean attributes
|
||||
write(" %s" % v)
|
||||
else:
|
||||
write(" %s=\"%s\"" % (qnames[k], v))
|
||||
if namespaces:
|
||||
items = namespaces.items()
|
||||
items.sort(key=lambda x: x[1]) # sort on prefix
|
||||
for v, k in items:
|
||||
if k:
|
||||
k = ":" + k
|
||||
write(" xmlns%s=\"%s\"" % (k, _escape_attrib(v)))
|
||||
if format == "xhtml" and tag in HTML_EMPTY:
|
||||
write(" />")
|
||||
else:
|
||||
write(">")
|
||||
tag = tag.lower()
|
||||
if text:
|
||||
if tag == "script" or tag == "style":
|
||||
write(text)
|
||||
else:
|
||||
write(_escape_cdata(text))
|
||||
for e in elem:
|
||||
_serialize_html(write, e, qnames, None, format)
|
||||
if tag not in HTML_EMPTY:
|
||||
write("</" + tag + ">")
|
||||
if elem.tail:
|
||||
write(_escape_cdata(elem.tail))
|
||||
|
||||
def _write_html(root,
|
||||
encoding=None,
|
||||
default_namespace=None,
|
||||
format="html"):
|
||||
assert root is not None
|
||||
data = []
|
||||
write = data.append
|
||||
qnames, namespaces = _namespaces(root, default_namespace)
|
||||
_serialize_html(write, root, qnames, namespaces, format)
|
||||
if encoding is None:
|
||||
return "".join(data)
|
||||
else:
|
||||
return _encode("".join(data))
|
||||
|
||||
|
||||
# --------------------------------------------------------------------
|
||||
# serialization support
|
||||
|
||||
def _namespaces(elem, default_namespace=None):
|
||||
# identify namespaces used in this tree
|
||||
|
||||
# maps qnames to *encoded* prefix:local names
|
||||
qnames = {None: None}
|
||||
|
||||
# maps uri:s to prefixes
|
||||
namespaces = {}
|
||||
if default_namespace:
|
||||
namespaces[default_namespace] = ""
|
||||
|
||||
def add_qname(qname):
|
||||
# calculate serialized qname representation
|
||||
try:
|
||||
if qname[:1] == "{":
|
||||
uri, tag = qname[1:].split("}", 1)
|
||||
prefix = namespaces.get(uri)
|
||||
if prefix is None:
|
||||
prefix = _namespace_map.get(uri)
|
||||
if prefix is None:
|
||||
prefix = "ns%d" % len(namespaces)
|
||||
if prefix != "xml":
|
||||
namespaces[uri] = prefix
|
||||
if prefix:
|
||||
qnames[qname] = "%s:%s" % (prefix, tag)
|
||||
else:
|
||||
qnames[qname] = tag # default element
|
||||
else:
|
||||
if default_namespace:
|
||||
raise ValueError(
|
||||
"cannot use non-qualified names with "
|
||||
"default_namespace option"
|
||||
)
|
||||
qnames[qname] = qname
|
||||
except TypeError:
|
||||
_raise_serialization_error(qname)
|
||||
|
||||
# populate qname and namespaces table
|
||||
try:
|
||||
iterate = elem.iter
|
||||
except AttributeError:
|
||||
iterate = elem.getiterator # cET compatibility
|
||||
for elem in iterate():
|
||||
tag = elem.tag
|
||||
if isinstance(tag, QName) and tag.text not in qnames:
|
||||
add_qname(tag.text)
|
||||
elif isinstance(tag, util.string_type):
|
||||
if tag not in qnames:
|
||||
add_qname(tag)
|
||||
elif tag is not None and tag is not Comment and tag is not PI:
|
||||
_raise_serialization_error(tag)
|
||||
for key, value in elem.items():
|
||||
if isinstance(key, QName):
|
||||
key = key.text
|
||||
if key not in qnames:
|
||||
add_qname(key)
|
||||
if isinstance(value, QName) and value.text not in qnames:
|
||||
add_qname(value.text)
|
||||
text = elem.text
|
||||
if isinstance(text, QName) and text.text not in qnames:
|
||||
add_qname(text.text)
|
||||
return qnames, namespaces
|
||||
|
||||
def to_html_string(element):
|
||||
return _write_html(ElementTree(element).getroot(), format="html")
|
||||
|
||||
def to_xhtml_string(element):
|
||||
return _write_html(ElementTree(element).getroot(), format="xhtml")
|
||||
@@ -0,0 +1,360 @@
|
||||
from __future__ import unicode_literals
|
||||
from __future__ import absolute_import
|
||||
from . import util
|
||||
from . import odict
|
||||
from . import inlinepatterns
|
||||
|
||||
|
||||
def build_treeprocessors(md_instance, **kwargs):
|
||||
""" Build the default treeprocessors for Markdown. """
|
||||
treeprocessors = odict.OrderedDict()
|
||||
treeprocessors["inline"] = InlineProcessor(md_instance)
|
||||
treeprocessors["prettify"] = PrettifyTreeprocessor(md_instance)
|
||||
return treeprocessors
|
||||
|
||||
|
||||
def isString(s):
|
||||
""" Check if it's string """
|
||||
if not isinstance(s, util.AtomicString):
|
||||
return isinstance(s, util.string_type)
|
||||
return False
|
||||
|
||||
|
||||
class Treeprocessor(util.Processor):
|
||||
"""
|
||||
Treeprocessors are run on the ElementTree object before serialization.
|
||||
|
||||
Each Treeprocessor implements a "run" method that takes a pointer to an
|
||||
ElementTree, modifies it as necessary and returns an ElementTree
|
||||
object.
|
||||
|
||||
Treeprocessors must extend markdown.Treeprocessor.
|
||||
|
||||
"""
|
||||
def run(self, root):
|
||||
"""
|
||||
Subclasses of Treeprocessor should implement a `run` method, which
|
||||
takes a root ElementTree. This method can return another ElementTree
|
||||
object, and the existing root ElementTree will be replaced, or it can
|
||||
modify the current tree and return None.
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class InlineProcessor(Treeprocessor):
|
||||
"""
|
||||
A Treeprocessor that traverses a tree, applying inline patterns.
|
||||
"""
|
||||
|
||||
def __init__(self, md):
|
||||
self.__placeholder_prefix = util.INLINE_PLACEHOLDER_PREFIX
|
||||
self.__placeholder_suffix = util.ETX
|
||||
self.__placeholder_length = 4 + len(self.__placeholder_prefix) \
|
||||
+ len(self.__placeholder_suffix)
|
||||
self.__placeholder_re = util.INLINE_PLACEHOLDER_RE
|
||||
self.markdown = md
|
||||
|
||||
def __makePlaceholder(self, type):
|
||||
""" Generate a placeholder """
|
||||
id = "%04d" % len(self.stashed_nodes)
|
||||
hash = util.INLINE_PLACEHOLDER % id
|
||||
return hash, id
|
||||
|
||||
def __findPlaceholder(self, data, index):
|
||||
"""
|
||||
Extract id from data string, start from index
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* data: string
|
||||
* index: index, from which we start search
|
||||
|
||||
Returns: placeholder id and string index, after the found placeholder.
|
||||
|
||||
"""
|
||||
m = self.__placeholder_re.search(data, index)
|
||||
if m:
|
||||
return m.group(1), m.end()
|
||||
else:
|
||||
return None, index + 1
|
||||
|
||||
def __stashNode(self, node, type):
|
||||
""" Add node to stash """
|
||||
placeholder, id = self.__makePlaceholder(type)
|
||||
self.stashed_nodes[id] = node
|
||||
return placeholder
|
||||
|
||||
def __handleInline(self, data, patternIndex=0):
|
||||
"""
|
||||
Process string with inline patterns and replace it
|
||||
with placeholders
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* data: A line of Markdown text
|
||||
* patternIndex: The index of the inlinePattern to start with
|
||||
|
||||
Returns: String with placeholders.
|
||||
|
||||
"""
|
||||
if not isinstance(data, util.AtomicString):
|
||||
startIndex = 0
|
||||
while patternIndex < len(self.markdown.inlinePatterns):
|
||||
data, matched, startIndex = self.__applyPattern(
|
||||
self.markdown.inlinePatterns.value_for_index(patternIndex),
|
||||
data, patternIndex, startIndex)
|
||||
if not matched:
|
||||
patternIndex += 1
|
||||
return data
|
||||
|
||||
def __processElementText(self, node, subnode, isText=True):
|
||||
"""
|
||||
Process placeholders in Element.text or Element.tail
|
||||
of Elements popped from self.stashed_nodes.
|
||||
|
||||
Keywords arguments:
|
||||
|
||||
* node: parent node
|
||||
* subnode: processing node
|
||||
* isText: bool variable, True - it's text, False - it's tail
|
||||
|
||||
Returns: None
|
||||
|
||||
"""
|
||||
if isText:
|
||||
text = subnode.text
|
||||
subnode.text = None
|
||||
else:
|
||||
text = subnode.tail
|
||||
subnode.tail = None
|
||||
|
||||
childResult = self.__processPlaceholders(text, subnode)
|
||||
|
||||
if not isText and node is not subnode:
|
||||
pos = node.getchildren().index(subnode)
|
||||
node.remove(subnode)
|
||||
else:
|
||||
pos = 0
|
||||
|
||||
childResult.reverse()
|
||||
for newChild in childResult:
|
||||
node.insert(pos, newChild)
|
||||
|
||||
def __processPlaceholders(self, data, parent):
|
||||
"""
|
||||
Process string with placeholders and generate ElementTree tree.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* data: string with placeholders instead of ElementTree elements.
|
||||
* parent: Element, which contains processing inline data
|
||||
|
||||
Returns: list with ElementTree elements with applied inline patterns.
|
||||
|
||||
"""
|
||||
def linkText(text):
|
||||
if text:
|
||||
if result:
|
||||
if result[-1].tail:
|
||||
result[-1].tail += text
|
||||
else:
|
||||
result[-1].tail = text
|
||||
else:
|
||||
if parent.text:
|
||||
parent.text += text
|
||||
else:
|
||||
parent.text = text
|
||||
result = []
|
||||
strartIndex = 0
|
||||
while data:
|
||||
index = data.find(self.__placeholder_prefix, strartIndex)
|
||||
if index != -1:
|
||||
id, phEndIndex = self.__findPlaceholder(data, index)
|
||||
|
||||
if id in self.stashed_nodes:
|
||||
node = self.stashed_nodes.get(id)
|
||||
|
||||
if index > 0:
|
||||
text = data[strartIndex:index]
|
||||
linkText(text)
|
||||
|
||||
if not isString(node): # it's Element
|
||||
for child in [node] + node.getchildren():
|
||||
if child.tail:
|
||||
if child.tail.strip():
|
||||
self.__processElementText(node, child,False)
|
||||
if child.text:
|
||||
if child.text.strip():
|
||||
self.__processElementText(child, child)
|
||||
else: # it's just a string
|
||||
linkText(node)
|
||||
strartIndex = phEndIndex
|
||||
continue
|
||||
|
||||
strartIndex = phEndIndex
|
||||
result.append(node)
|
||||
|
||||
else: # wrong placeholder
|
||||
end = index + len(self.__placeholder_prefix)
|
||||
linkText(data[strartIndex:end])
|
||||
strartIndex = end
|
||||
else:
|
||||
text = data[strartIndex:]
|
||||
if isinstance(data, util.AtomicString):
|
||||
# We don't want to loose the AtomicString
|
||||
text = util.AtomicString(text)
|
||||
linkText(text)
|
||||
data = ""
|
||||
|
||||
return result
|
||||
|
||||
def __applyPattern(self, pattern, data, patternIndex, startIndex=0):
|
||||
"""
|
||||
Check if the line fits the pattern, create the necessary
|
||||
elements, add it to stashed_nodes.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* data: the text to be processed
|
||||
* pattern: the pattern to be checked
|
||||
* patternIndex: index of current pattern
|
||||
* startIndex: string index, from which we start searching
|
||||
|
||||
Returns: String with placeholders instead of ElementTree elements.
|
||||
|
||||
"""
|
||||
match = pattern.getCompiledRegExp().match(data[startIndex:])
|
||||
leftData = data[:startIndex]
|
||||
|
||||
if not match:
|
||||
return data, False, 0
|
||||
|
||||
node = pattern.handleMatch(match)
|
||||
|
||||
if node is None:
|
||||
return data, True, len(leftData)+match.span(len(match.groups()))[0]
|
||||
|
||||
if not isString(node):
|
||||
if not isinstance(node.text, util.AtomicString):
|
||||
# We need to process current node too
|
||||
for child in [node] + node.getchildren():
|
||||
if not isString(node):
|
||||
if child.text:
|
||||
child.text = self.__handleInline(child.text,
|
||||
patternIndex + 1)
|
||||
if child.tail:
|
||||
child.tail = self.__handleInline(child.tail,
|
||||
patternIndex)
|
||||
|
||||
placeholder = self.__stashNode(node, pattern.type())
|
||||
|
||||
return "%s%s%s%s" % (leftData,
|
||||
match.group(1),
|
||||
placeholder, match.groups()[-1]), True, 0
|
||||
|
||||
def run(self, tree):
|
||||
"""Apply inline patterns to a parsed Markdown tree.
|
||||
|
||||
Iterate over ElementTree, find elements with inline tag, apply inline
|
||||
patterns and append newly created Elements to tree. If you don't
|
||||
want to process your data with inline paterns, instead of normal string,
|
||||
use subclass AtomicString:
|
||||
|
||||
node.text = markdown.AtomicString("This will not be processed.")
|
||||
|
||||
Arguments:
|
||||
|
||||
* tree: ElementTree object, representing Markdown tree.
|
||||
|
||||
Returns: ElementTree object with applied inline patterns.
|
||||
|
||||
"""
|
||||
self.stashed_nodes = {}
|
||||
|
||||
stack = [tree]
|
||||
|
||||
while stack:
|
||||
currElement = stack.pop()
|
||||
insertQueue = []
|
||||
for child in currElement.getchildren():
|
||||
if child.text and not isinstance(child.text, util.AtomicString):
|
||||
text = child.text
|
||||
child.text = None
|
||||
lst = self.__processPlaceholders(self.__handleInline(
|
||||
text), child)
|
||||
stack += lst
|
||||
insertQueue.append((child, lst))
|
||||
if child.tail:
|
||||
tail = self.__handleInline(child.tail)
|
||||
dumby = util.etree.Element('d')
|
||||
tailResult = self.__processPlaceholders(tail, dumby)
|
||||
if dumby.text:
|
||||
child.tail = dumby.text
|
||||
else:
|
||||
child.tail = None
|
||||
pos = currElement.getchildren().index(child) + 1
|
||||
tailResult.reverse()
|
||||
for newChild in tailResult:
|
||||
currElement.insert(pos, newChild)
|
||||
if child.getchildren():
|
||||
stack.append(child)
|
||||
|
||||
for element, lst in insertQueue:
|
||||
if self.markdown.enable_attributes:
|
||||
if element.text and isString(element.text):
|
||||
element.text = \
|
||||
inlinepatterns.handleAttributes(element.text,
|
||||
element)
|
||||
i = 0
|
||||
for newChild in lst:
|
||||
if self.markdown.enable_attributes:
|
||||
# Processing attributes
|
||||
if newChild.tail and isString(newChild.tail):
|
||||
newChild.tail = \
|
||||
inlinepatterns.handleAttributes(newChild.tail,
|
||||
element)
|
||||
if newChild.text and isString(newChild.text):
|
||||
newChild.text = \
|
||||
inlinepatterns.handleAttributes(newChild.text,
|
||||
newChild)
|
||||
element.insert(i, newChild)
|
||||
i += 1
|
||||
return tree
|
||||
|
||||
|
||||
class PrettifyTreeprocessor(Treeprocessor):
|
||||
""" Add linebreaks to the html document. """
|
||||
|
||||
def _prettifyETree(self, elem):
|
||||
""" Recursively add linebreaks to ElementTree children. """
|
||||
|
||||
i = "\n"
|
||||
if util.isBlockLevel(elem.tag) and elem.tag not in ['code', 'pre']:
|
||||
if (not elem.text or not elem.text.strip()) \
|
||||
and len(elem) and util.isBlockLevel(elem[0].tag):
|
||||
elem.text = i
|
||||
for e in elem:
|
||||
if util.isBlockLevel(e.tag):
|
||||
self._prettifyETree(e)
|
||||
if not elem.tail or not elem.tail.strip():
|
||||
elem.tail = i
|
||||
if not elem.tail or not elem.tail.strip():
|
||||
elem.tail = i
|
||||
|
||||
def run(self, root):
|
||||
""" Add linebreaks to ElementTree root object. """
|
||||
|
||||
self._prettifyETree(root)
|
||||
# Do <br />'s seperately as they are often in the middle of
|
||||
# inline content and missed by _prettifyETree.
|
||||
brs = root.getiterator('br')
|
||||
for br in brs:
|
||||
if not br.tail or not br.tail.strip():
|
||||
br.tail = '\n'
|
||||
else:
|
||||
br.tail = '\n%s' % br.tail
|
||||
# Clean up extra empty lines at end of code blocks.
|
||||
pres = root.getiterator('pre')
|
||||
for pre in pres:
|
||||
if len(pre) and pre[0].tag == 'code':
|
||||
pre[0].text = pre[0].text.rstrip() + '\n'
|
||||
@@ -0,0 +1,136 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
from __future__ import unicode_literals
|
||||
import re
|
||||
import sys
|
||||
|
||||
|
||||
"""
|
||||
Python 3 Stuff
|
||||
=============================================================================
|
||||
"""
|
||||
PY3 = sys.version_info[0] == 3
|
||||
|
||||
if PY3:
|
||||
string_type = str
|
||||
text_type = str
|
||||
int2str = chr
|
||||
else:
|
||||
string_type = basestring
|
||||
text_type = unicode
|
||||
int2str = unichr
|
||||
|
||||
|
||||
"""
|
||||
Constants you might want to modify
|
||||
-----------------------------------------------------------------------------
|
||||
"""
|
||||
|
||||
BLOCK_LEVEL_ELEMENTS = re.compile("^(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul"
|
||||
"|script|noscript|form|fieldset|iframe|math"
|
||||
"|hr|hr/|style|li|dt|dd|thead|tbody"
|
||||
"|tr|th|td|section|footer|header|group|figure"
|
||||
"|figcaption|aside|article|canvas|output"
|
||||
"|progress|video)$", re.IGNORECASE)
|
||||
# Placeholders
|
||||
STX = '\u0002' # Use STX ("Start of text") for start-of-placeholder
|
||||
ETX = '\u0003' # Use ETX ("End of text") for end-of-placeholder
|
||||
INLINE_PLACEHOLDER_PREFIX = STX+"klzzwxh:"
|
||||
INLINE_PLACEHOLDER = INLINE_PLACEHOLDER_PREFIX + "%s" + ETX
|
||||
INLINE_PLACEHOLDER_RE = re.compile(INLINE_PLACEHOLDER % r'([0-9]{4})')
|
||||
AMP_SUBSTITUTE = STX+"amp"+ETX
|
||||
|
||||
"""
|
||||
Constants you probably do not need to change
|
||||
-----------------------------------------------------------------------------
|
||||
"""
|
||||
|
||||
RTL_BIDI_RANGES = ( ('\u0590', '\u07FF'),
|
||||
# Hebrew (0590-05FF), Arabic (0600-06FF),
|
||||
# Syriac (0700-074F), Arabic supplement (0750-077F),
|
||||
# Thaana (0780-07BF), Nko (07C0-07FF).
|
||||
('\u2D30', '\u2D7F'), # Tifinagh
|
||||
)
|
||||
|
||||
# Extensions should use "markdown.util.etree" instead of "etree" (or do `from
|
||||
# markdown.util import etree`). Do not import it by yourself.
|
||||
|
||||
try: # Is the C implemenation of ElementTree available?
|
||||
import xml.etree.cElementTree as etree
|
||||
from xml.etree.ElementTree import Comment
|
||||
# Serializers (including ours) test with non-c Comment
|
||||
etree.test_comment = Comment
|
||||
if etree.VERSION < "1.0.5":
|
||||
raise RuntimeError("cElementTree version 1.0.5 or higher is required.")
|
||||
except (ImportError, RuntimeError):
|
||||
# Use the Python implementation of ElementTree?
|
||||
import xml.etree.ElementTree as etree
|
||||
if etree.VERSION < "1.1":
|
||||
raise RuntimeError("ElementTree version 1.1 or higher is required")
|
||||
|
||||
|
||||
"""
|
||||
AUXILIARY GLOBAL FUNCTIONS
|
||||
=============================================================================
|
||||
"""
|
||||
|
||||
|
||||
def isBlockLevel(tag):
|
||||
"""Check if the tag is a block level HTML tag."""
|
||||
if isinstance(tag, string_type):
|
||||
return BLOCK_LEVEL_ELEMENTS.match(tag)
|
||||
# Some ElementTree tags are not strings, so return False.
|
||||
return False
|
||||
|
||||
"""
|
||||
MISC AUXILIARY CLASSES
|
||||
=============================================================================
|
||||
"""
|
||||
|
||||
class AtomicString(text_type):
|
||||
"""A string which should not be further processed."""
|
||||
pass
|
||||
|
||||
|
||||
class Processor(object):
|
||||
def __init__(self, markdown_instance=None):
|
||||
if markdown_instance:
|
||||
self.markdown = markdown_instance
|
||||
|
||||
|
||||
class HtmlStash(object):
|
||||
"""
|
||||
This class is used for stashing HTML objects that we extract
|
||||
in the beginning and replace with place-holders.
|
||||
"""
|
||||
|
||||
def __init__ (self):
|
||||
""" Create a HtmlStash. """
|
||||
self.html_counter = 0 # for counting inline html segments
|
||||
self.rawHtmlBlocks=[]
|
||||
|
||||
def store(self, html, safe=False):
|
||||
"""
|
||||
Saves an HTML segment for later reinsertion. Returns a
|
||||
placeholder string that needs to be inserted into the
|
||||
document.
|
||||
|
||||
Keyword arguments:
|
||||
|
||||
* html: an html segment
|
||||
* safe: label an html segment as safe for safemode
|
||||
|
||||
Returns : a placeholder string
|
||||
|
||||
"""
|
||||
self.rawHtmlBlocks.append((html, safe))
|
||||
placeholder = self.get_placeholder(self.html_counter)
|
||||
self.html_counter += 1
|
||||
return placeholder
|
||||
|
||||
def reset(self):
|
||||
self.html_counter = 0
|
||||
self.rawHtmlBlocks = []
|
||||
|
||||
def get_placeholder(self, key):
|
||||
return "%swzxhzdk:%d%s" % (STX, key, ETX)
|
||||
|
||||
Reference in New Issue
Block a user