zulip/zerver/lib/markdown/help_emoticon_translations_...

67 lines
1.9 KiB
Python

import re
from typing import Any, List
from typing.re import Match
import markdown
from markdown.preprocessors import Preprocessor
from zerver.lib.emoji import EMOTICON_CONVERSIONS, name_to_codepoint
REGEXP = re.compile(r'\{emoticon_translations\}')
TABLE_HTML = """\
<table>
<thead>
<tr>
<th>Emoticon</th>
<th>Emoji</th>
</tr>
</thead>
<tbody>
{body}
</tbody>
</table>
"""
ROW_HTML = """\
<tr>
<td><code>{emoticon}</code></td>
<td>
<img
src="/static/generated/emoji/images-google-64/{codepoint}.png"
alt="{name}"
class="emoji-big">
</td>
</tr>
"""
class EmoticonTranslationsHelpExtension(markdown.Extension):
def extendMarkdown(self, md: markdown.Markdown) -> None:
""" Add SettingHelpExtension to the Markdown instance. """
md.registerExtension(self)
md.preprocessors.register(EmoticonTranslation(), 'emoticon_translations', -505)
class EmoticonTranslation(Preprocessor):
def run(self, lines: List[str]) -> List[str]:
for loc, line in enumerate(lines):
match = REGEXP.search(line)
if match:
text = self.handleMatch(match)
lines = lines[:loc] + text + lines[loc+1:]
break
return lines
def handleMatch(self, match: Match[str]) -> List[str]:
rows = [
ROW_HTML.format(emoticon=emoticon,
name=name.strip(':'),
codepoint=name_to_codepoint[name.strip(':')])
for emoticon, name in EMOTICON_CONVERSIONS.items()
]
body = ''.join(rows).strip()
return TABLE_HTML.format(body=body).strip().splitlines()
def makeExtension(*args: Any, **kwargs: Any) -> EmoticonTranslationsHelpExtension:
return EmoticonTranslationsHelpExtension(*args, **kwargs)