It is in the correct scope the way it is being used (global in this case), it's just difficult to tell because of poor code formatting. It should all be left-justified, with the exception of the statements within the while and unless statements, which should be indented only once.

Perl::Tidy can help those who are unfamiliar with proper indentation get a good grasp of it.

my %CONFIG_PARAMS;
 
my $mapattach;

while (my ($key , $value) = each(%CONFIG_PARAMS)) {
    if ($file =~ /$key/) {
        $mapattach = $value;
    }
}

unless (defined $mapattach)  {
    Println "WARN : Ignoring $file, not found in the config file";
}

[download]

What I see is that %CONFIG_PARAMS has been declared, but not defined, so it'll always be empty. However, perhaps this isn't the real code OP is really using, which makes troubleshooting the issue pretty much impossible.

In reply to Re^2: Code Issue after Upgrading the perl from 5.14.4 to 5.22.3 by stevieb
in thread Code Issue after Upgrading the perl from 5.14.4 to 5.22.3 by Srinath

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.