For me the definitive "why MMD?" example was one I saw recently in that DSL-in-lisp movie that was making its way around a few blogs a few weeks ago.

The movie is mostly aimed at showing off lisp's macro abilities, but those to me are pretty old hat - I've been seeing smug lisp weenies praise macros for years - but along the way the programmer casually uses MMD where in perl I'd have to use a bunch of cascading if/elsif blocks or at best a dispatch table. It's not a huge difference, but having seen it in action, it's something I want. Not need, necessarily, but want in the way I really-want-but-can't-quite-justify a new desktop. (It's been a few years; on the other hand, there are other bills that must get paid...)

Think of MMD as yet another way for the language to get out of your way when expressing the solution to a problem. 

--
@/=map{[/./g]}qw/.h_nJ Xapou cets krht ele_ r_ra/;
map{y/X_/\n /;print}map{pop@$_}@/for@/

[download]

In reply to Re^6: The beauty of MMD by fizbin
in thread Perl 5's greatest limitation is...? by BrowserUk

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.