Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic

Comment on

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

Instead of returning subs which constantly evals strings (your eval $evalN lines), you can just eval a string that defines a sub once, something like this:

#!/usr/bin/perl -l use strict; use warnings; my @subs = ( q/ { my $i=0; sub { print "($i) First sub, sir!"; ++$i; } } /, q/ { my $i=0; sub { print "($i) Another sub, sir!"; ++$i; } } / ); my @code = map { eval $_ } @subs; $code[rand(2)]->() for (0 .. 20);

I hope that isn't too obscure. It just places two strings into an array. Each string is a block of code defining a variable and returning a sub using that variable. Later the strings are eval'ed in order to generate callable code. And last, the code is actually called. The random index is there just to make it clear that there is a closure in the game.

Sorry about that "sir!" thing, I saw Full Metal Jacket the other day and I can't get it out of my head. Be happy that my subs aren't mooing.

In reply to Re: Re: Building an anonymous subroutine by mem
in thread Building an anonymous subroutine by BorgCopyeditor

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
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others musing on the Monastery: (7)
    As of 2018-02-21 17:55 GMT
    Find Nodes?
      Voting Booth?
      When it is dark outside I am happiest to see ...

      Results (285 votes). Check out past polls.