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.