Re: Font-lock decides function call is function declaration in C+ +

[Alan Mackenzie]

Hi, Chong and Stefan!

On Sun, Feb 11, 2007 at 06:18:34PM -0500, Chong Yidong wrote:
> Alan Mackenzie <address@hidden> writes:

> > Once a variable has been inserted into c-found-types, it will stay
> > there almost for ever; it will stay there until re-fontification is
> > done from BOB (I'm not sure whether or not that also means
> > (point-min) on a narrowed buffer).  This permanence seems to be the
> > fundamental problem.

> > I think a solution might be to remove "foo" from c-found-types
> > whenever text is inserted/deleted in the vicinity of "foo\n bar ();"
> > which syntactically destroys its status as a type identifier.  I'll
> > need to think a lot more about this.

> For the Emacs 22 release, if no simple fix is forthcoming, could we
> simply get font-lock to avoid higlighting constructor functions?

Give me a few more days, please!

int main () {
   foo(               <=================
   bar();
}

I think I can now see how to do this removal of "foo" from c-found-types:
After experimenting with C++ Mode, I conjecture that each "critical" use
of "foo" is marked with one of the values (c-decl-id-start
c-decl-type-start) for the property c-type.  (Hint: it's not at the
buffer position you might expect.)

If this proves true, or almost true, it will be easy enough to amend CC
Mode's before/after-change function to remove these identifiers from
c-found-types.

Give me a few more days to try this out, please!

-- 
Alan Mackenzie (Ittersbach, Germany).