Re: Do POSIX classes work in regular expression searches?

[Andreas Röhler]

Am 23.07.2011 05:19, schrieb Mark S:
> Thanks Perry!
>
> I suppose this was obvious to everyone, but I really didn't see it in
> the documentation -- or even an example of usage.
>
> Thanks again!
> Mark
>
> On Jul 22, 4:24 pm, Perry Smith <pedz...@gmail.com> wrote:
> > On Jul 22, 2011, at 8:12 PM, Mark S wrote:
> > > I've been trying to do some simple searches like:
> > > (query-replace-regexp "<span[:ascii:]*?</span>+" "test")
> > > or even the simpler
> > > (query-replace-regexp "[:ascii:]*" "test")
> > > and not getting anywhere. Emacs just looks for the characters ":acis"
> > -- not for the POSIX character set of all ASCII characters. Trying it
> > with other sets also got me nowhere. These character classes are
> > listed in the Emacs documentation -- is there a trick to getting them
> > to work?
> > Looks like you need two sets of brackets?
> > [[:ascii:]]*

you may understand the inner bracketed-form like an equivalent to "a-zA-Z"

you may write for example

[[:ascii:]ÄÖÜaöü]*

in order to cover german umlauts too