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Regexp::Assemble::Compressed is a subclass of Regexp::Assemble. It assembles more compressed regular expressions.

Regexp::Compare implements a function comparing regular expressions: it returns true if all strings matched by the first regexp are also matched by the second. It's meant to be used for optimization of blacklists implemented by regular expressions (like, for example, http://www.communitywiki.org/cw/BannedContent). False return value does not imply that there's a string matched by the first regexp which isn't matched by the second - many regular expressions (i.e. those containing Perl code) are impossible to compare, and this module doesn't even implement all possible comparisons.

String::Ediff - Produce common sub-string indices for two strings This module uses suffix tree algorithm to determine the common substrings.

Parses and tokenizes Perl regular expressions.

Regexp::RegGrp is a Perl modele to group regular expressions to one regular expression.

Reply is a lightweight, extensible REPL for Perl. It is plugin-based (see Reply::Plugin), and through plugins supports many advanced features such as coloring and pretty printing, readline support, and pluggable commands.

The ResourcePool is a generic connection caching and pooling management facility. It might be used in an Apache/mod_perl environment to support connection caching like Apache::DBI for non-DBI resources (e.g. Net::LDAP). It's also useful in a stand alone perl application to handle connection pools. The key benefit of ResourcePool is the generic design which makes it easily extensible to new resource types. The ResourcePool has a simple check mechanism to detect and close broken connections (e.g. if the database server was restarted) and opens new connections if possible. If you are new to ResourcePool you should go to the ResourcePool::BigPicture documentation which provides the best entry point to this module. The ResourcePool itself handles always exactly equivalent connections (e.g. connections to the same server with the same user-name and password) and is therefore not able to do a load balancing. The ResourcePool::LoadBalancer is able to do a advanced load balancing across different servers and increases the overall availability by applying a failover policy if there is a server breakdown.

String::Random is used to generate random strings. It was written to make generating random passwords and such a little easier. See the documentation in pod format in the module for more information.

String::RexxParse is an attempt to provide REXX parsing routines for some long-time REXX programmers.

The "String::Similarity" calculates the similarity index of its two arguments. A value of '0' means that the strings are entirely different. A value of '1' means that the strings are identical. Everything else lies between 0 and 1 and describes the amount of similarity between the strings.