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

[Stefan Monnier]

>> Yes, unfortunately, I think that if you try to learn types on-the-fly then
>> you will always be vulnerable to this sort of problem.  The issue is that
>> cc-mode needs to know as soon as a change invalidates it as a candidate
>> type
>> (ie, deletion of some/all of the text "foo" or interruption of the
>> whitespace between "foo" and its candidate identifier "bar").  I can think
>> of a few ways you could attempt to do it, but they are a bit intensive and
>> far from simple.

> It's worse than that.  Inserting a new letter that changes "foo", or
> transposing two characters 3k back in the buffer that cause the whole
> region to become a comment, or deleting "bar", or exchanging "foo" and
> "bar", or merely exchanging 'f' and 'o', or adding #define in front of
> "foo", or... any of which could be done as one change by an appropriate
> Lisp helper function.

Yes, of course, the case of commenting code needs to be handled as well, but
re-using the font-lock machinery makes it "somewhat painless".


        Stefan