This is a library of functions to support regular expressions whose syntax and semantics are as close as possible to those of the Perl 5 language. . This package contains the runtime libraries.
libpcre3-dev | Perl 5 Compatible Regular Expression Library - development files | Mehr ...
This is a library of functions to support regular expressions whose syntax and semantics are as close as possible to those of the Perl 5 language. . This package contains the development files, including headers, static libraries, and documentation.
libpcrecpp0 | Perl 5 Compatible Regular Expression Library - C++ runtime files | Mehr ...
This is a C++ library of functions to support regular expressions whose syntax and semantics are as close as possible to those of the Perl 5 language. . This package contains the C++ runtime library.
pcregrep | grep utility that uses perl 5 compatible regexes. | Mehr ...
Perl-style regexps have many useful features that the standard POSIX ones don't; this is basically the same as grep but with the different regexp syntax. . The other reason for the existence of pcregrep is that its source code is an example of programming with libpcre.