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Markdown renderer for TiddlyWeb

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A TiddlyWeb plugin to render markdown syntax wikitext to HTML using the Python Markdown library.

The source repository is available on GitHub.


If markdown.wiki_link_base is set in instance config, then TiddlyWeb oriented features are turned on (see below), otherwise the text is treated as straight Markdown.

By default HTML in user input is escaped. If different behavior is desired set markdown.safe_mode in config to one of the values described in the Python-Markdown documentation: "replace", "escape", "remove" of False.

Additional Markdown extensions can be activated via the markdown.extensions configuration settings, which is a tuple of two items: A list of extension names and a dictionary with configuration settings.

By default some extensions are included:

The TiddlyWeb features add the following:

  • wikilinks: CamelCase
  • freelinks: [[some page]]
  • labeled freelinks: [[label|some page]]
  • transclusion: see below

Wikilinks and freelinks will be prefixed by wiki_link_base. Set it to '' (emptry string) to activate the features without any prefix.

Transclusion uses the following syntax:

{{tiddler title}}

That will include tiddler with the given title from the current context (recipe or bag) of the transcluding tiddler.

Links and transclusion can be augmented with @target syntax:

  • @target
  • CamelCase@target
  • [[some page]]@target
  • [[label|some page]]@target
  • {{tiddler title}}@target

target is resolved via three different configuration settings:

  • markdown.interlinker names a function which returns a link to whatever might be considered a target of some kind. It's arguments are a WSGI environ and a string representing the target. It returns a URI for the target, without the title of the tiddler.

  • markdown.target_resolver names a function which determines the tiddler object that is to be transcluded. It's arguments are a WSGI environ, a string representing the context from which a tiddler is being transcluded and a tiddler object. That tiddler object is modified in place to add the bag in which it can be found.

  • markdown.transclude_url names a function which returns a link to a tiddler in a target context. It's arguments are a WSGI environ and a tiddler. It returns a URI for the tiddler that has been transcluded. This is useful for augmenting the output to include a link to the transcluded tiddler.

If the desired target contains spaces, wrap the target in [[ ]], for example:

[[my page]]@[[my bag]]

To use this renderer on Tiddlers which have a type of text/x-markdown adjust to include:

'wikitext.type_render_map' :{
    'text/x-markdown': 'tiddlywebplugins.markdown'

If you want all tiddlers with no type to be rendered as markdown, then set

'wikitext.default_renderer': 'tiddlywebplugins.markdown'


Available from PyPi, install with pip:

pip install -U tiddlywebplugins.markdown


Copyright 2009-2014 Chris Dent

Licensed under the same BSD license as TiddlyWeb

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