Re: Trouble with quotes in comments for mode derived from sql-mode

[Stefan Monnier <monnier@iro.umontreal.ca>]

> The file format I'm using supports both sql "--" and c++ "//" comments.
> sql-mode provides the "--" comment, and handles quotes in this comment
> style correctly.
> I added the "//" comment style through the derived mode, but the c++
> comment style does not handle the quotes correctly. I will try the
> latest newcomment.el, but I suspect I'll need to modify the syntax
> table as suggested by David Hansen below.

Of course, you'll have to create a new syntax-table (probably inheriting
from the other one).

But you'll probably also discover at some point that Emacs's syntax-tables
can't correctly handle -- and // at the same time.  I.e. if you tell it
that -- and // both start comments, then Emacs will then mistakenly also
consider -/ and /- to be comment starters :-(

One way out is to use font-lock-syntactic-keywords, but it's not as robust.


        Stefan