I would strongly recommend only accepting one form. If you want to accept both, have 2 different functions. That way if you ever want to add a third argument or fourth argument (such as, oh, a machine to connect to, a port, options for an SSH tunnel, etc) you'll be in good shape.

If you disregard said advice, you could do it as follows:

sub ssh_connect { my ($self, $user, $pass) = @_; if (3 < @_) { (undef, my %args) = @_; $user = $args{user} or confess("No user"); $pass = $args{pass} or confess("No pass"); } print "$user and $pass\n"; }
Alternately you could make the two forms be
$foo->ssh_connect($user, $password); $foo->ssh_connect({user => $user, pass => $password});
and dispatch on whether there are fewer than 3 arguments. This is actually a saner way to go, but it does require {}.

In reply to Re: Simple Subroutine Question by tilly
in thread Simple Subroutine Question by walkingthecow

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.