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