Florian Ragwitz > Cond-Expr-0.02 > Cond::Expr

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Module Version: 0.02   Source  

NAME ^

Cond::Expr - conditionals as expressions

SYNOPSIS ^

    my %args = (
        foo => 'bar',
        (cond
            ($answer == 42) { answer => $answer }
            ($answer)       { wrong_answer => 1 }
            otherwise       { no_answer    => 1 }
        ),
    );

DESCRIPTION ^

This module implements a Lisp alike cond control structure.

How is this different from…

FUNCTIONS ^

cond

Takes a set of test/expr pairs. It evaluates each test one at a time. If a test returns logical true, cond evaluates and returns the value of the corresponding expr and doesn't evaluate any of the other tests or exprs. When none of the provided tests yield a true value, () or undef is returned in list and scalar context, respectively.

AUTHOR ^

Florian Ragwitz <rafl@debian.org>

COPYRIGHT AND LICENSE ^

This software is copyright (c) 2012 by Florian Ragwitz.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

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