1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
"""If python-markdown is installed expose an apply_markdown(text) function,
to convert markeddown text into html. Otherwise just set apply_markdown to None.
See: http://www.freewisdom.org/projects/python-markdown/
"""
__all__ = ['apply_markdown']
try:
import markdown
import re
class CustomSetextHeaderProcessor(markdown.blockprocessors.BlockProcessor):
"""Override markdown's SetextHeaderProcessor, so that ==== headers are <h2> and ---- headers are <h3>.
We use <h1> for the resource name."""
# Detect Setext-style header. Must be first 2 lines of block.
RE = re.compile(r'^.*?\n[=-]{3,}', 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 = 2
else:
level = 3
h = markdown.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:]))
def apply_markdown(text):
"""Simple wrapper around markdown.markdown to apply our CustomSetextHeaderProcessor,
and also set the base level of '#' style headers to <h2>."""
extensions = ['headerid(level=2)']
safe_mode = False,
output_format = markdown.DEFAULT_OUTPUT_FORMAT
md = markdown.Markdown(extensions=markdown.load_extensions(extensions),
safe_mode=safe_mode,
output_format=output_format)
md.parser.blockprocessors['setextheader'] = CustomSetextHeaderProcessor(md.parser)
return md.convert(text)
except:
apply_markdown = None
|
