Rather simple reason that CGI.pm isn't doing what you'd like it to:

Your incomming XML is likely unquoted.

Let's assume you're trying to pass in this small XML string (I'll do the example in GET, since CGI.pm handles GET and POST transparantly): "<xmltag>Tulips &amp; Flowers<xmltag>".

in a get request this is going to look like:
script.pl?xml=<xmltag>Tulips &amp; Flowers<xmltag>

Ick! Since you haven't followed the specs for escapeing URLs, it's going to get nasty.

Get the people who are sending your request to properly escape the data: 

my $newval = CGI::escape(qq("<xmltag>tulips &amp; Flowers:</xmltag>));

[download]
$newval will now look more like: %3Cxmltag%3Etulips%20%26amp%3B%20Flowers%3A%3C%2Fxmltag%3E

Which is how it should look if you're following the standards for URL quoting.

Now, using CGI.pm: 

use CGI.pm

my $q = new CGI;

my $xml = CGI::unescape($q->param('xml'));

[download]

Voila!

In reply to Re: CGI.pm problems by Illiad
in thread CGI.pm problems by c-era

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.