CONTENTS NAME DESCRIPTION CONCEPTS USING FILTERS WRITING A SOURCE FILTER WRITING A SOURCE FILTER IN C CREATING A SOURCE FILTER AS A SEPARATE EXECUTABLE WRITING A SOURCE FILTER IN PERL USING CONTEXT: THE DEBUG FILTER CONCLUSION LIMITATIONS THINGS TO LOOK OUT FOR REQUIREMENTS AUTHOR Copyrights #NAME perlfilter - Source Filters #DESCRIPTION This article is about a little-known feature of Perl called