Module::Pluggable can work, perhaps combined with File::HomeDir :)

For DIY, say you have : FLV::Info, Image::Info, MP3::Info ...

you could have MyStuff->load_plugins (Module::Load) ... MyStuff->register_plugin ... if( $thisplugin->do_run_run( $item,... ) ){ next } ....

Module::Pluggable arranges for this by naming convention so plugins don't need to register themselves (use MyStuff::Plugin; or MyStuff->register_plugin(__PACKAGE__) ), they just name themselves correctly :) (MyStuff::Plugin::Me)

Examples of this sort of thing can be found at mimetype,mimeopen, openit, Re^2: LWP to open a new browser window, Wx::Demo

It is a global DispatchTable :) Also useful food for thought The Architecture of Open Source Applications

In reply to Re: Recommendations for adding plugin/addon capability to a program by Anonymous Monk
in thread Recommendations for adding plugin/addon capability to a program by atcroft

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.