Switch.pm provides the syntax and semantics for an explicit case mechanism for Perl. The syntax is minimal, introducing only the keywords "switch" and "case" and conforming to the general pattern of existing Perl control structures. The semantics are particularly rich, allowing any one (or more) of nearly 30 forms of matching to be used when comparing a switch value with its various cases. This is from CPAN and works the same as a deprecated function in Perl base which will be removed in a future version.
WWW: http://search.cpan.org/dist/Switch/
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