Cross reference doesn't render as a link if followed by punctuation signs (colon, semicolon, question, ...)

[InExtremaRes]

• Gitea version (or commit ref): 1.12.0+dev-220-gd7f4f87aa (current at try.gitea.io)
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  • PostgreSQL
  • MySQL
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  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes https://try.gitea.io/inextremares/testing/issues/5
  • No
  • Not relevant
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Description

When a message references another issue with #number syntax the reference doesn't show as a link if there is a colon, semicolon, question sign or others punctuation signs just after it. I didn't test more but I thinks these are very common and should be supported.

Screenshots

[guillep2k]

For context, this was enabled for mentions (@user) in #8889, but there was no discussion about what characters are allowed following an issue or pr reference. It's tricky business because issue references can take a lot of shapes. For simple numeric references, currently only ), ], : and . are supported; the latter only if it's immediately followed by space or EOL. I think ; and , could follow the same rule as well.

[InExtremaRes]

Yes, you're right that it's tricky. Support for ; and , with the same rules that : and . would be great.

Can ? and ! be supported as well? I think if the rule is the same (space or EOL immediately after) then it isn't ambiguous, but I can say nothing about the troubles to implement that.

[guillep2k]

This can be closed as per #10091