Re: font-locking and open parens in column zero

[martin rudalics <rudalics@gmx.at>]

 > That is probably obsolete, from the days before C mode started using
 > `c-beginning-of-syntax'.  This feature is no longer needed in C mode,
 > since `c-beginning-of-syntax' prevents the confusion it was meant to warn
 > the user about.

When `c-beginning-of-syntax' doesn't find a cached position it calls
`c-beginning-of-defun-1' which, on Emacs, calls `beginning-of-defun':

(1) With emacs -Q open ~/src/syntax.c

(2) Execute

(defun foo ()
   (interactive)
   (re-search-forward "string-to-syntax")
   (forward-line 6)
   (recenter 0))

This will fontify the entire body of `string_to_syntax' as a C string
due to the left paren in column zero of the doc-string.