C++ template classes for declaring grammars directly in the code as set of compound classes. Includes regexp_parser class for parsing input upon regular expression definition provided in its constructor.
A modified version of Henry Spencer's regular expression library (Autoconf, Automake and Libtool scripts have been added and a few file names have been changed). Also related links.
A C library for matching regular expressions with Perl 5 syntax and semantics. PCRE has its own native API, as well as a set of wrapper functions that correspond to the POSIX regular expression API.
A C++ regex template library that allows regexes to be written as strings or as expression templates and to refer to themselves and other regexes recursively.