<?xml version="1.0" encoding="windows-1252"?>
<node id="154883" title="Poor man's Exporter." created="2002-03-27 22:16:08" updated="2005-07-21 01:31:11">
<type id="1980">
snippet</type>
<author id="75719">
shotgunefx</author>
<data>
<field name="doctext">
</field>
<field name="snippetdesc">
Exporting is bad 'mkay. This came out of a discussion [id://154538|here]. I use Exporter to manage my exports. This is not intended to replace it but merely for illustrative purposes for anyone who is thinking about rolling their own import. Doesn't support :tags (easily done though) , but does support @EXPORT, @EXPORT_OK, @EXPORT_FAIL and $VERSION checking. 
&lt;hr&gt;&lt;b&gt;Update&lt;/b&gt; Fixed bug. Wasn't removing the modulename from @_, which meant it tried to import a var with the name specified in use.</field>
<field name="snippetcode">
&lt;CODE&gt;
our @EXPORT    = qw (@array $VAR );
our @EXPORT_OK = qw($OK_ONLY); 
our @EXPORT_FAIL  = qw ($DONTDOIT);

sub import {
    no strict 'refs';
    my $used_name = shift ; # Remove the Module name.

    my ($Version) = grep { m/^\d[\d.]*$/} @_;
    my @ex =  grep { !m/^(\d[\d\.]+)$/} @_;
    die "Insufficient or missing \$VERSION: $VERSION, $Version required." if $Version  &amp;&amp; $VERSION &lt;= $Version;
    push @ex, @EXPORT ;
    my %EXP  = map {($_,'mKay')} @EXPORT,@EXPORT_OK;
    $EXP{$_} = 'Bad' for @EXPORT_FAIL;
    my $that_pack = caller();
    foreach (@ex){
        next if m/^\d[\d\.]+$/;
        die "Denied. Can't export $_" if $EXP{$_} eq 'Bad';
        die "Can't export unknown symbol $_" unless $EXP{$_} eq 'mKay';
        m/^([\@\$\*\&amp;\%]?)(\w+)/;
        my ($t,$v) = ($1,$2);
        $t = '&amp;' unless $t;
        *{$that_pack.'::'.$v} = $t eq '@' &amp;&amp; \@{$v} || $t eq '%' &amp;&amp; \%{$v} || 
	        		$t eq '&amp;' &amp;&amp; \&amp;{$v} || $t eq '$' &amp;&amp; \${$v} || 
		        	$t eq '*' &amp;&amp; \*{$v} || \*{$_};
    }

}
&lt;/CODE&gt;</field>
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