CEDET

>I've pretty much realized how the bnf format works, but not mastered
>it -- yet:

>class Q_EXPORT QLCDNumber : public QFrame	// LCD number widget
>{
>	:
>	:
>}

>I've simply no idea where to put stuff for the Q_EXPORT macro ;/

Ok, here comes how to handle this Q_EXPORT stuff - i assume that you
do not need the info that here Q_EXPORT is used but that it is ok,
if the parser/lexer handles "class Q_EXPORT classname" as if
"class classname" would be written...if this is right, then you can
do:


(defun semantic-flex-Q_EXPORT ()
  "Check if we found \"class Q_EXPORT \" and if yes treat it as whitespace"
  (let (found)
    (save-excursion
      (goto-char (match-beginning 1))
      ;;     (skip-syntax-backward " ")
      (save-match-data
        (if (re-search-backward "class[ \t]+" nil t)        
            (setq found t))))
    (when found
      (goto-char (match-end 1))
      nil)))

Add then this to semantic-flex-c-extensions:

(add-to-list 'semantic-flex-c-extensions
             ("^\\s-*#if\\s-*0$" . semantic-flex-c-if-0))

You should do this in the c++-mode-hook.

I have tested it by adding this code to semantic-c.el itself but it should
also work if coded outside....

It only a fast hack but it can demonstrate you the principle...

Ciao,
klaus