This can be done through symbolic references. If the module name is a literal and the subroutine name is a variable, then you can use 

&{"Modname::$subname"}

[download]
to access the subroutine. And make sure that when calling this subroutine you put parentheses around the arguements as well. Also note that you cannot do this if use strict 'refs' is in effect.

Personally, I would avoid using symbolic references if I could help it and just stick with using real references. For example you could create a hash of subroutine references: 

my %table = (name1 => \&subname1, name2 => \&subname2 ... );

[download]
and then call it with 
$table{$name}->( ... args ... )

[download]

In reply to Re: Module suboutine needs dereferencing? by Errto
in thread Module suboutine needs dereferencing? by amnesty_puppy

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.