As the error message states there is a problem in line 28, but that is one nasty bit of obfusicated code! Lets break it up a little:

my @list;

if (ref $doc->{Result} eq "HASH") {
     @list = $doc->{Result};
} elsif (ref $doc->{Result} eq "ARRAY") {
     @list = @{$doc->{Result}};
} else {
     @list = ();
}

for( @list ){

[download]

Layed out like that it looks like a lot of work! The guts is that it is supposed to generate a list and iterate over it. The complication is that the list may be generated from an array ref or a hash ref. Note though that the sigil used in the first assignment is for a scalar, yet we know there is actually a reference to a hash, and the lhs expects to see a list. Something isn't right! Changing the line to:

     @list = keys %{$doc->{Result}};

[download]

may be what is required. Assuming that fixes the problem, you can re-obfusicate the code by using nested terniary operators, squeezing white space and munging the lot onto one line as a trap for the next maintainer. :)

DWIM is Perl's answer to Gödel

In reply to Re: Parsing Yahoo XML Response by GrandFather
in thread Parsing Yahoo XML Response by ecuguru

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.