Re: Character classes -- what about them -- need to support them?
On Mon, Apr 16, 2012 at 7:02 AM, Mats Lidell <matsl(a)xemacs.org> wrote:
>>>>> Stephen J Turnbull
<stephenjturnbull(a)gmail.com> writes:
> What do you mean by "support in regexps but not in
> re-search-forward"? AFAIK we have no support for them at all,
> certainly not at the C level.
I'm probably just confused by a comment in regex.h which says ...
If not set, then character classes are not supported. */
#define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1)
...
#define IS_CHAR_CLASS(string) \
They made me believe we had some support for it.
Well, I wasn't aware of that code. Evidently there's a first attempt
at support. To find out if it actually is real support, you'd need to
check whether (1) RE_CHAR_CLASSES actually controls any code, (2)
whether or not that code is #ifndef emacs (in which case it's used in
etags but not in emacs), and (3) whether it actually works if used in
XEmacs.
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