Bug 272573 – Implement case sensitive modifier (s) in attribute selector

• Status: RESOLVED
• Resolution: FIXED
• Component: CSS

[Karl Dubost]

While the case insensitive attribute selector parameter is working such as in ol[type="i" i], 
the case sensitive version is not working such as in:

  ol[type="i" s] {
    list-style-type: lower-alpha;
    background: lime;
  }

This creates for example SyntaxError in the code when using insertRule on a newly created stylesheet.

sheet.insertRule('[foo="bar" s]', 0) will FAIL. 

See 
http://wpt.live/css/selectors/attribute-selectors/attribute-case/cssom.html
http://wpt.fyi/css/selectors/attribute-selectors/attribute-case/cssom.html

[Radar WebKit Bug Importer]

<rdar://problem/126331481>

[Karl Dubost]

https://searchfox.org/wubkat/rev/8ce70fa03821ea1c7a19a3913730ffe6b8a522ed/Source/WebCore/css/CSSStyleRule.cpp#231

[Karl Dubost]

https://searchfox.org/wubkat/rev/8ce70fa03821ea1c7a19a3913730ffe6b8a522ed/Source/WebCore/css/parser/CSSSelectorParser.cpp#972-981

[Karl Dubost]

Pull request: https://github.com/WebKit/WebKit/pull/27188

[Antti Koivisto]

Pull request: https://github.com/WebKit/WebKit/pull/64914

[EWS]

Committed 313234@main (ff2f768ad68a): <https://commits.webkit.org/313234@main>

Reviewed commits have been landed. Closing PR #64914 and removing active labels.