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rendercomment: safer Flyspray task linkification

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When an FS#123 is part of a code block, it must not be converted into a
link. FS#123 may also appear inside an URL, in which case regular
linkifaction of URLs must take precedence.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>
This commit is contained in:
Frédéric Mangano-Tarumi 2020-02-02 20:25:08 +01:00 • committed by Lukas Fleischer
parent 199f34e42e
commit 127bb4c84c
2 changed files with 40 additions and 7 deletions
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21
aurweb/scripts/rendercomment.py
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@ -29,18 +29,25 @@ class LinkifyExtension(markdown.extensions.Extension):
md.inlinePatterns.add('linkify', processor, '_end')
class FlysprayLinksPreprocessor(markdown.preprocessors.Preprocessor):
_fsre = re.compile(r'\b(FS#(\d+))\b')
_sub = r'[\1](https://bugs.archlinux.org/task/\2)'
class FlysprayLinksInlineProcessor(markdown.inlinepatterns.InlineProcessor):
"""
Turn Flyspray task references like FS#1234 into links to bugs.archlinux.org.
def run(self, lines):
return [self._fsre.sub(self._sub, line) for line in lines]
The pattern's capture group 0 is the text of the link and group 1 is the
Flyspray task ID.
"""
def handleMatch(self, m, data):
el = markdown.util.etree.Element('a')
el.set('href', f'https://bugs.archlinux.org/task/{m.group(1)}')
el.text = markdown.util.AtomicString(m.group(0))
return el, m.start(0), m.end(0)
class FlysprayLinksExtension(markdown.extensions.Extension):
def extendMarkdown(self, md, md_globals):
preprocessor = FlysprayLinksPreprocessor(md)
md.preprocessors.add('flyspray-links', preprocessor, '_end')
processor = FlysprayLinksInlineProcessor(r'\bFS#(\d+)\b',md)
md.inlinePatterns.add('flyspray-links', processor, '_end')
class GitCommitsInlineProcessor(markdown.inlinepatterns.InlineProcessor):