Re: Problems with syntax-ppss: Was [... Apply `comment-depth' text properties when calling `back_comment'.]

[Andreas Röhler]

On 10.03.2016 14:01, Alan Mackenzie wrote:
> Hello, Stefan.
>
> On Wed, Mar 09, 2016 at 04:40:45PM -0500, Stefan Monnier wrote:
> > > > > > ...., so if you have a problem with the implementation, fix it (or
> > > > > > report it as a bug, at the very least) and everyone else will benefit.
> > > > > Perhaps you could fix the problems I've identified here and in my last
> > > > > email.
> > > > Why would I bother, since I don't even know of any real use case where
> > > > those problems are triggered?
> > > OK, fine.  So we go with my approach to back_comment, then?
> > Why?
> Well, given that syntax-ppss is not suitable for fixing back_comment,
> the alternatives are not fixing it, substantially amending syntax-ppss,
> using my new code, or fixing it some other way.  I really think it
> should be fixed.  You don't want syntax-ppss to be changed.  Do you have
> an idea for an "other way"?

There is neither a need nor a way to fix syntax-ppss : Determining 
syntax must check from beginning of buffer, as parse-partial-sexp does. 
parse-partial-sexp is in C, it's fast.

Best,

Andreas