Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

A design pattern is a way of using components; that's why design patterns are not components of languages.

You might come up with a "language" consisting of mortar and bricks of various sorts. The design patterns would be the various common ways of arranging bricks to achieve various results. For example, when building a freestanding brick wall, you'll see some bricks sideways, to tie two layers together.

Cliches, aka idioms, are standard bits of code, such as open ... or die $! in Perl, or while( (c=getchar()) == 0 ) in C. Design patterns are both more complex and more abstract than these.

One simple design pattern is the use of an object, the iterator to traverse an array or linked list, rather than coding a loop. You could not make an iterator a part of a language in the sense that while loops or exceptions can be. If you have a library of data structures, as Java & C++ do, you can implement iterators as part of that.


In reply to Re: "Perl Design Patterns" by TomDLux
in thread "Perl Design Patterns" by tjh

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    [fireblood]: Greetings, I am running perll under cygwin, and have discovered that "require strict" has no effect. Is there a way to get it to work? Thank you.
    [1nickt]: use strict;

    How do I use this? | Other CB clients
    Other Users?
    Others rifling through the Monastery: (6)
    As of 2017-04-26 02:44 GMT
    Find Nodes?
      Voting Booth?
      I'm a fool:

      Results (467 votes). Check out past polls.