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

68 lines
1.9 KiB
Python

import re
from typing import Any, List
from typing.re import Match
from markdown import Markdown
from markdown.extensions import Extension
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(Extension):
def extendMarkdown(self, md: 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)