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#!/usr/bin/perl ... $output =~ s/\[\[asp_pp"([^"]+)"asp_pp\]\]/ "<%" . HTML::Entities::decode_entities ( $1 ) . "%>"/gse; print $output;
<input value="abc" /> <b>abc</b> <b>abc</b> <% abc ( '<input value="abc" /> abc abc <span> %>', $abc ); %> <input value="<%= $abc %>" abc />