Htmlpp: Macro-based HTML preprocessor, with Perl interface. Last modification on November 7 2000.
Embedded Perl 5 Language (ePerl): ePerl interprets an ASCII file bristled with Perl 5 program statements
by evaluating the Perl 5 code while passing through the plain ASCII data. It
can operate in various ways: As a stand-alone Unix filter or integrated Perl 5
module for general file generation tasks and as a powerful Webserver scripting
language for dynamic HTML page programming. Last modification on September 23 1999.
GPP - Generic Preprocessor: gpp is a general-purpose preprocessor designed to at the same time be
able to handle more general situations than cpp by being independent of the C
language syntax, and have a lighter syntax than m4 in order to avoid having to
juggle with lots of quotes. Last modification on October 19 1999.