Hi,

 

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.

 

- Jörg