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All the Perl that's Practical to Extract and Report

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  • The answer perl is giving you seems to be right to me. If you try split( /:/, "a:b::c" ) you get a 4-element result with the third being the null string, ("a", "b", "", "c"). For a single element result, split( /:/, "ab" ) returns the single element "ab", split( /:/, "a" ) returns the single element "a", and split( /:/, "" ) returns the single element "". Returning 0 elements for the last case would be inconsistant with the previous set of results.