NAME

Regexp::Trie - builds trie-ized regexp

SYNOPSIS

            

              
              
use Regexp::Trie;
my $rt = Regexp::Trie->new;
for (qw/foobar fooxar foozap fooza/){
  $rt->add($_);
}
print $rt->regexp, "\n" # (?-xism:foo(?:bar|xar|zap?))
            
          

DESCRIPTION

This module is a faster but simpler version of Regexp::Assemble or Regexp::Optimizer. It builds a trie-ized regexp as above.

This module is faster than Regexp::Assemble but you can only add literals. a+b is treated as a\+b, not "more than one a's followed by b".

I wrote this module because I needed something faster than Regexp::Assemble and Regexp::Optimizer. If you need more minute control, use those instead.

TIPS

See t/dict2rx.pl to find how to convert a big dictionary into a single regexp that can be later loaded as:

            

              
              
my $rx = do 'dict.rx';
            
          

EXPORT

None.

SEE ALSO

Regexp::Optimizer, Regexp::Assemble, Regex::PreSuf

AUTHOR

Dan Kogai, <dankogai@dan.co.jp>

COPYRIGHT AND LICENSE

Copyright (C) 2006 by Dan Kogai

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available.