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The Parse::Lex.pm module for perl5 is an object-oriented generator of lexical analyzers. This distribution includes Parse::YYLex (written by Vladimir Alexiev) a lexer generator that you can use with yacc parsers.

exprotobuf works by building module/struct definitions from a Google Protocol Buffer schema. This allows you to work with protocol buffers natively in Elixir, with easy decoding/encoding for transport across the wire.

This module lets you parallelise a perl program using the fork, exit, wait and waitpid calls as usual but without taking care of creating too many processes and overloading the machine.

This module attempts to provide a small, fast utility for working with file paths. It is friendlier to use than File::Spec and provides easy access to functions from several other core file handling modules.

In Perl 5.8.0 the so-called "safe signals" were introduced. This means that Perl no longer handles signals immediately but instead "between opcodes", when it is safe to do so. The earlier immediate handling easily could corrupt the internal state of Perl, resulting in mysterious crashes. It's possible since perl 5.8.1 to globally disable this feature by using the PERL_SIGNALS environment variables (as specified in "PERL_SIGNALS" in perlrun); but there's no way to disable it locally, for a short period of time. That's however something you might want to do, if, for example, your Perl program calls a C routine that will potentially run for a long time and for which you want to set a timeout. This module therefore allows you to define UNSAFE_SIGNALS blocks in which signals will be handled "unsafely".

When using Pod::Coverage in combination with Moose, it will report any method imported from a Role. This is especially bad when used in combination with Test::Pod::Coverage, since it takes away its ease of use.

This is a generic interface for placing processes in the background on both Unix and Win32 platforms. This module lets you start, kill, wait on, retrieve exit values, and see if background processes still exist.

Rcs::Agent is a perl module for manipulating RCS archives. It provides an object-oriented interface to the RCS commands rcs(1), rcsdiff(1), ci(1) and co(1), in addition to providing easy access to revision information contained in the RCS archive file.

Scalar::Util::LooksLikeNumber contains looks_like_number() like Scalar::Util's looks_like_number(), except it returns the raw value from the C function. Scalar::Util used to do this also, but it returns a booleanized value since 1.39.

Set::Infinite is a Set Theory module for infinite sets. It works with reals, integers, and objects. When it is used dates, this module provides schedule checks (intersections), unions, and infinite recurrences.