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comparison fontaine/renderer.py @ 1:74b83e3d921e

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Add more states, add more tests.
author Ludovic Chabant <ludovic@chabant.com>
date Mon, 02 Jan 2017 21:54:59 -0800
parents
children 6019eee799bf
comparison
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0:243401c49520 1:74b83e3d921e
1 import re
2
3
4 RE_ITALICS = re.compile(
5 r"(?P<before>^|\s)(?P<esc>\\)?\*(?P<text>.*[^\s\*])\*(?=[^a-zA-Z0-9\*]|$)")
6 RE_BOLD = re.compile(
7 r"(?P<before>^|\s)(?P<esc>\\)?\*\*(?P<text>.*[^\s])\*\*(?=[^a-zA-Z0-9]|$)")
8 RE_UNDERLINE = re.compile(
9 r"(?P<before>^|\s)(?P<esc>\\)?_(?P<text>.*[^\s])_(?=[^a-zA-Z0-9]|$)")
10
11
12 class BaseRenderer:
13 def render_text(self, text):
14 # Replace bold stuff to catch double asterisks.
15 text = RE_BOLD.sub(self._do_write_bold, text)
16 text = RE_ITALICS.sub(self._do_write_italics, text)
17 text = RE_UNDERLINE.sub(self._do_write_underline, text)
18
19 return text
20
21 def _do_write_italics(self, m):
22 if m.group('esc'):
23 return m.group('before') + '*' + m.group('text') + '*'
24 return (
25 m.group('before') +
26 self.write_italics(m.group('text')))
27
28 def _do_write_bold(self, m):
29 if m.group('esc'):
30 return m.group('before') + '**' + m.group('text') + '**'
31 return (
32 m.group('before') +
33 self.write_bold(m.group('text')))
34
35 def _do_write_underline(self, m):
36 if m.group('esc'):
37 return m.group('before') + '_' + m.group('text') + '_'
38 return (
39 m.group('before') +
40 self.write_underline(m.group('text')))
41
42 def write_italics(self, text):
43 raise NotImplementedError()
44
45 def write_bold(self, text):
46 raise NotImplementedError()
47
48 def write_underline(self, text):
49 raise NotImplementedError()