metaperl.com <[EMAIL PROTECTED]> wrote: > Pyparsing has a really nice feature that I want in PLY. I want to > specify a list of strings and have them converted to a regular > expression. > > A Perl module which does an aggressively optimizing job of this is > Regexp::List - > http://search.cpan.org/~dankogai/Regexp-Optimizer-0.15/lib/Regexp/List.pm > > I really dont care if the expression is optimal. So the goal is > something like: > > vowel_regexp = oneOf("a aa i ii u uu".split()) # yielding r'(aa|a|uu| > u|ii|i)' > > Is there a public module available for this purpose?
I wrote one of these in perl a while ago http://www.craig-wood.com/nick/pub/words-to-regexp.pl It transforms the regular expression recursively into more efficient ones. It uses regular expressions to do that. I considered porting it to python but looking at the regular expressions made me feel weak at the knees ;-) -- Nick Craig-Wood <[EMAIL PROTECTED]> -- http://www.craig-wood.com/nick -- http://mail.python.org/mailman/listinfo/python-list
