bug#37990: font-lock and string literals

[Lars Ingebrigtsen]

Richter, Jörg <Joerg.Richter@pdv-FS.de> writes:

> I'm using emacs 26.3.
>
> Call:
>
> (font-lock-add-keywords
> 'c-mode
> '(
>    ("\\<XXX\\>[^;]*;" 0 'font-lock-function-name-face t)))
>
> Then visit a .c file with this line:
>
>   XXX("aaa");
>
> The line is rendered with font-lock-function-name-face, except the second "
> which has font-lock-warning-face.
> Somehow emacs thinks there is an unfinished string literal.

I'm able to reproduce this in Emacs 26, but not in Emacs 27, so I think
this has been fixed by now.

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