On Thu, Aug 10, 2000 at 05:21:44PM +0300, Jason Elbaum wrote:
> As far as I know, there is a basic bit of regexp functionality which
> Perl should support but doesn't.
>
> Perl regexps support the following features, though they're a bit
> obscure to my tastes...
>
> (from perlre:)
> \l lowercase next char (think vi)
> \u uppercase next char (think vi)
> \L lowercase till \E (think vi)
> \U uppercase till \E (think vi)
> \E end case modification (think vi)
>
> ...but Perl doesn't offer a regexp pattern to match all alphabetical
> characters of a particular case. Something like:
>
> \x match lowercase alpha char
> \X match uppercase alpha char
>
> Thus /\X\x*/ would match all capitalized words, while /\X+/ would match
> acronyms, and /(\X\x+)+/ would match Java class names.
Perl 5.6.0 has [[:lower:]] and [[:upper:]].
--
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# There is this special biologist word we use for 'stable'.
# It is 'dead'. -- Jack Cohen
