Re: [AUCTeX-devel] Fun with syntax tables

[David Kastrup]

Ralf Angeli <address@hidden> writes:

> Suppose you have line like
> foo \verb|bar| baz
> in a LaTeX buffer.  font-latex puts syntax properties (string quote
> syntax) onto the | characters which then get picked up by
> `font-lock-fontify-syntactically-region'.  This happens with help of
> `parse-partial-sexp'.
>
> This is fine in LaTeX mode, but fails in documentation parts of docTeX
> mode.  There the line would look like this:
> % foo \verb|bar| baz
> That means with a comment starter at the front.
>
> The problem is that with % as the comment start and \n as the comment
> end `parse-partial-sexp' won't find the stuff marked with string quote
> syntax inside of the comment.  Here is an example:

[...]

> If you execute it, it should return 13 which is the end of the line.
> If you remove the % character from the inserted string it will return
> 8 which is the position just after the second | character.
>
> Can anybody tell me how to make the string quote stuff visible for
> `parse-partial-sexp'?

Well, there are some variables that mildly sound like they could be
useful.

#1 would be
parse-sexp-ignore-comments
  Variable: Non-nil means `forward-sexp', etc., should treat comments as 
whitespace.
  Plist: standard-value variable-documentation

Some others of possible relevance:

comment-use-global-state
  Variable: Non-nil means that the global syntactic context is used.
  Plist: variable-documentation
comment-use-syntax
  Variable: Non-nil if syntax-tables can be used instead of regexps.
  Plist: variable-documentation

font-lock-comment-end-skip
  Variable: If non-nil, Font Lock mode uses this instead of `comment-end'.
  Plist: variable-documentation
font-lock-comment-start-regexp
  Variable: Regexp to match the start of a comment.
  Plist: variable-documentation
font-lock-comment-start-skip
  Variable: If non-nil, Font Lock mode uses this instead of 
`comment-start-skip'.
  Plist: variable-documentation


-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum