Backport #29305 by @DanielMatiasCarvalho
This seeks to fix the bug reported on issue #29196.
Cause:
ID's with custom characters (- , _ , etc.), were not linking correctly
in the Markdown file when rendered in the browser because the ID in the
respective destinies would be different than the one in anchor, while
for IDs with only letters, the ID would be the same.
Fix:
It was suggested that to fix this bug, it should more or less like
GitHub does it. While in gitea the anchors would be put in HTML like
this:
```
<p dir="auto"><a href="#user-content-_toc152597800" rel="nofollow">Review</a></p>
<p dir="auto"><a href="#user-content-_toc152597802" rel="nofollow">Staging</a></p>
<p dir="auto"><a href="#user-content-_toc152597803" rel="nofollow">Development</a></p>
<p dir="auto"><a href="#user-content-_toc152597828" rel="nofollow">Testing</a></p>
<p dir="auto"><a href="#user-content-_toc152597829" rel="nofollow">Unit-tests</a></p>
```
In GitHub, the same anchor's href properties would be the same without
"user-content-" trailing behind.
So my code made sure to change those anchors, so it would not include
"user-content-" and then add respective Event Listeners so it would
scroll into the supposed places.
Fixes: #29196
Co-authored-by: DC <106393991+DanielMatiasCarvalho@users.noreply.github.com>
Co-authored-by: silverwind <me@silverwind.io>
The hashchange event did not fire on re-click of a active anchor.
Instead, use the click event which always fires.
Fixes: https://github.com/go-gitea/gitea/issues/21680
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: zeripath <art27@cantab.net>
* creates and implements generic markup less class
* How to give custom CSS to externally rendered html
* Clarifies sources of CSS styling of markup
* further clarification of sources of markup styling
* rename _markdown to _markup
* remove defunct import
* fix orphaned reference
* Update docs/content/doc/advanced/external-renderers.en-us.md
* more renames markdown -> markup
* do not suggest less customization
* add back tokens
* fix class whitespace, remove useless if-clause
* remove unused csv-data rules
* use named exports and rename functions
* sort imports
Co-authored-by: HarvsG <11440490+HarvsG@users.noreply.github.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: silverwind <me@silverwind.io>
