This is Perl module Regexp::Assemble::Compressed. INSTALLATION Regexp::Assemble::Compressed installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan Regexp::Assemble::Compressed Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION Regexp::Assemble::Compressed documentation is available as in POD. So you can do: % perldoc Regexp::Assemble::Compressed to read the documentation online with your favorite pager. Koichi Taniguchi