ERASE_PACKAGE('Package::Name');
# Will clear out package FOO but would leave FOO::BAR intact.
ERASE_PACKAGE_RECURSIVE('Package::Name');
# Will clear out package FOO and FOO::BAR and FOO::BAR::BASE, etc.
Brought on by this node. Why would you want to do this? You would almost never want to. If you think you need this, you probably should think harder, but in the spirit of giving enough rope...
sub ERASE_PACKAGE {
  my $packname = shift;
  $packname .= '::' unless  $packname =~ /::$/;
  no strict "refs";
  my $package = *{$packname}{HASH};
  return unless defined $package;
  undef *{$packname . $_} foreach  (keys %$package);
}

sub ERASE_PACKAGE_RECURSIVE {
  # Call with "Package::Name"
  my $packname = shift;
  $packname .= '::' unless  $packname =~ /::$/;
  no strict "refs";
  my $package = *{$packname}{HASH};
  return unless defined $package;
  $_=~/::$/ ? ERASE_PACKAGE($packname . $_) : undef *{$packname . $_} 
+foreach  (keys %$package);
}

[download]

In reply to Erasing Symbol Tables by shotgunefx

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.