Re: category codes and regexps

[Kenichi Handa]

In article <address@hidden>, Werner LEMBERG <address@hidden> writes:

> Assume that I want to check a buffer for characters which aren't Thai,
> and which aren't in the range a-z.  My first idea was this:

>   [^\cta-z]

> This fails because `\' isn't special within [...].  What's the correct
> (interactive) way to do that?  I tried hard without finding a regexp
> which can handle this.

Unfortunately [...] can't be used with category nor syntax.

[ ^ a - z ESC : (insert (make-char 'thai-tis620 #x20)) RET
  - ESC : (insert (make-char 'thai-tis620 #x7f)) RET
]

will produce a regex that you want.

Another way is to make a new category (say, menumonic `T')
that contains a-z and Thai.  Then you can specify:
    \CT

---
Ken'ichi HANDA
address@hidden