initial, semibroken podcast tag support for md

nikola/plugins/compile_markdown/__init__.py

@@ -38,6 +38,9 @@
     from nikola.plugins.compile_markdown.mdx_gist import GistExtension
     gist_extension = GistExtension()
 
+    from nikola.plugins.compile_markdown.mdx_podcast import PodcastExtension
+    podcast_extension = PodcastExtension()
+
 except ImportError:
     markdown = None  # NOQA
     nikola_extension = None
@@ -52,7 +55,7 @@ class CompileMarkdown(PageCompiler):
     name = "markdown"
 
     extensions = ['fenced_code', 'codehilite', gist_extension,
-                  nikola_extension]
+                  nikola_extension, podcast_extension]
 
     def compile_html(self, source, dest):
         if markdown is None:

nikola/plugins/compile_markdown/mdx_podcast.py

@@ -0,0 +1,89 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2013 Michael Rabbitt, Roberto Alsina
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Inspired by "[Python] reStructuredText GitHub Podcast directive"
+# (https://gist.github.com/brianhsu/1407759), public domain by Brian Hsu
+
+from __future__ import print_function, unicode_literals
+
+
+'''
+Extension to Python Markdown for Embedded Audio
+
+Basic Example:
+
+>>> import markdown
+>>> text = """[podcast]http://archive.org/download/Rebeldes_Stereotipos/rs20120609_1.mp3[/podcast]"""
+>>> html = markdown.markdown(text, [PodcastExtension()])
+>>> print(html)
+<p><audio src="http://archive.org/download/Rebeldes_Stereotipos/rs20120609_1.mp3"></audio></p>
+'''
+
+import warnings
+from markdown.extensions import Extension
+from markdown.inlinepatterns import Pattern
+from markdown.util import AtomicString
+from markdown.util import etree
+
+PODCAST_RE = r'\[podcast\](?P<url>.+)\[/podcast\]'
+
+
+class PodcastPattern(Pattern):
+    """ InlinePattern for footnote markers in a document's body text. """
+
+    def __init__(self, pattern, configs):
+        Pattern.__init__(self, pattern)
+
+    def handleMatch(self, m):
+        url = m.group('url').strip()
+        audio_elem = etree.Element('audio')
+        audio_elem.set('controls', '')
+        source_elem = etree.SubElement(audio_elem, 'source')
+        source_elem.set('src', url)
+        source_elem.set('type', 'audio/mpeg')
+        return audio_elem
+
+
+class PodcastExtension(Extension):
+    def __init__(self, configs={}):
+        # set extension defaults
+        self.config = {}
+
+        # Override defaults with user settings
+        for key, value in configs:
+            self.setConfig(key, value)
+
+    def extendMarkdown(self, md, md_globals):
+        podcast_md_pattern = PodcastPattern(PODCAST_RE, self.getConfigs())
+        podcast_md_pattern.md = md
+        md.inlinePatterns.add('podcast', podcast_md_pattern, "<not_strong")
+        md.registerExtension(self)
+
+
+def makeExtension(configs=None):
+    return PodcastExtension(configs)
+
+if __name__ == '__main__':
+    import doctest
+    doctest.testmod(optionflags=(doctest.NORMALIZE_WHITESPACE +
+                                 doctest.REPORT_NDIFF))