--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/seminar/io2012slides/scripts/md/render.py	Tue Dec 10 15:31:33 2013 +0900
@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+
+import codecs
+import re
+import jinja2
+import markdown
+
+def process_slides():
+  with codecs.open('../../presentation-output.html', 'w', encoding='utf8') as outfile:
+    md = codecs.open('slides.md', encoding='utf8').read()
+    md_slides = md.split('\n---\n')
+    print 'Compiled %s slides.' % len(md_slides)
+
+    slides = []
+    # Process each slide separately.
+    for md_slide in md_slides:
+      slide = {}
+      sections = md_slide.split('\n\n')
+      # Extract metadata at the beginning of the slide (look for key: value)
+      # pairs.
+      metadata_section = sections[0]
+      metadata = parse_metadata(metadata_section)
+      slide.update(metadata)
+      remainder_index = metadata and 1 or 0
+      # Get the content from the rest of the slide.
+      content_section = '\n\n'.join(sections[remainder_index:])
+      html = markdown.markdown(content_section)
+      slide['content'] = postprocess_html(html, metadata)
+
+      slides.append(slide)
+
+    template = jinja2.Template(open('base.html').read())
+
+    outfile.write(template.render(locals()))
+
+def parse_metadata(section):
+  """Given the first part of a slide, returns metadata associated with it."""
+  metadata = {}
+  metadata_lines = section.split('\n')
+  for line in metadata_lines:
+    colon_index = line.find(':')
+    if colon_index != -1:
+      key = line[:colon_index].strip()
+      val = line[colon_index + 1:].strip()
+      metadata[key] = val
+
+  return metadata
+
+def postprocess_html(html, metadata):
+  """Returns processed HTML to fit into the slide template format."""
+  if metadata.get('build_lists') and metadata['build_lists'] == 'true':
+    html = html.replace('<ul>', '<ul class="build">')
+    html = html.replace('<ol>', '<ol class="build">')
+  return html
+
+if __name__ == '__main__':
+  process_slides()