... Is there a general guide on how to replace such a filter, done by a module, with a module that uses an external program?

Its easy to create a new Template::Plugin::Filter, you simply copy/paste the existing Template::Plugin::MultiMarkdown, rename it (say Template::Plugin::MultiMarkdownBin ), and replace the module-calling-part with something that calls the external program.

To know how to call this external program, the first step is locating the documentation for this external program to learn how to use it.

Then use something as discussed in perlipc (open2,open3, qx ...

You can use Capture::Tiny, IPC::Run3 ....

But you start with the documentation of this external program...

In reply to Re^3: Replacing perl module with external program by Anonymous Monk
in thread Replacing perl module with external program by sgbotsford

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.