s/%tag%/$value/g if defined $value;

[download]
If your variables aren't declared, you could copy them to an hashref and pass this hashref to your template parser. 
$hash = {key1 => 'value', key2 => 'value'};
...
foreach my $key (keys %$hash) {
    s/%$key%/$hash->{$key}/eg;
}

[download]

In reply to Re: Parsing Templates by uwevoelker
in thread Parsing Templates by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


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