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1 #!/usr/bin/env python
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2
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3 import codecs
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4 import re
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5 import jinja2
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6 import markdown
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7
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8 def process_slides():
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9 with codecs.open('../../presentation-output.html', 'w', encoding='utf8') as outfile:
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10 md = codecs.open('slides.md', encoding='utf8').read()
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11 md_slides = md.split('\n---\n')
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12 print 'Compiled %s slides.' % len(md_slides)
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13
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14 slides = []
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15 # Process each slide separately.
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16 for md_slide in md_slides:
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17 slide = {}
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18 sections = md_slide.split('\n\n')
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19 # Extract metadata at the beginning of the slide (look for key: value)
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20 # pairs.
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21 metadata_section = sections[0]
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22 metadata = parse_metadata(metadata_section)
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23 slide.update(metadata)
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24 remainder_index = metadata and 1 or 0
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25 # Get the content from the rest of the slide.
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26 content_section = '\n\n'.join(sections[remainder_index:])
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27 html = markdown.markdown(content_section)
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28 slide['content'] = postprocess_html(html, metadata)
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29
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30 slides.append(slide)
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31
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32 template = jinja2.Template(open('base.html').read())
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33
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34 outfile.write(template.render(locals()))
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35
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36 def parse_metadata(section):
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37 """Given the first part of a slide, returns metadata associated with it."""
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38 metadata = {}
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39 metadata_lines = section.split('\n')
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40 for line in metadata_lines:
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41 colon_index = line.find(':')
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42 if colon_index != -1:
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43 key = line[:colon_index].strip()
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44 val = line[colon_index + 1:].strip()
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45 metadata[key] = val
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46
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47 return metadata
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48
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49 def postprocess_html(html, metadata):
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50 """Returns processed HTML to fit into the slide template format."""
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51 if metadata.get('build_lists') and metadata['build_lists'] == 'true':
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52 html = html.replace('<ul>', '<ul class="build">')
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53 html = html.replace('<ol>', '<ol class="build">')
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54 return html
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55
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56 if __name__ == '__main__':
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57 process_slides()
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