The Perl Advent Calendar needs more articles for 2022. Submit your idea today!
    Mason - Powerful, high-performance templating for the web and beyond

        % my $name = "Mason";
        Hello world! Welcome to <% $name %>.

      use Mason;
      my $mason = Mason->new(comp_root => '...');
      print $mason->run('/foo')->output;

    Mason is a powerful Perl-based templating system, designed to generate
    dynamic content of all kinds.

    Unlike many templating systems, Mason does not attempt to invent an
    alternate, "easier" syntax for templates. It provides a set of syntax
    and features specific to template creation, but underneath it is still
    clearly and proudly recognizable as Perl.

    Mason is most often used for generating web pages. It has a companion
    web framework, Poet, designed to take maximum advantage of its routing
    and content generation features. It can also be used as the templating
    layer for web frameworks such as Catalyst and Dancer.

    All documentation is indexed at Mason::Manual.

    The previous major version of Mason (1.x) is available under the name

    The mailing list is `'. You must be
    subscribed to send a message. To subscribe, visit

    You can also visit us at `#mason' on irc:.

    Bugs and feature requests will be tracked at RT:

    The latest source code can be browsed and fetched at:
        git clone git://

    The official Mason website is, however it
    contains mostly information about Mason 1. We're not sure what the
    future of the website will be wrt Mason 2.

    Thanks to Stevan Little and the Moose team for the awesomeness of Moose,
    which motivated me to create a second version of Mason years after I
    thought I was done.

    Thanks to Tatsuhiko Miyagawa and the PSGI/Plack team, who freed me from
    ever worrying about server backends again.


    Jonathan Swartz <>

    This software is copyright (c) 2012 by Jonathan Swartz.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.