Perl::Critic::Policy::BuiltinFunctions::ProhibitStringySplit - Write C instead of C.


Perl-Critic documentation  | view source Contained in the Perl-Critic distribution.

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NAME

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Perl::Critic::Policy::BuiltinFunctions::ProhibitStringySplit - Write split /-/, $string instead of split '-', $string.

AFFILIATION

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This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

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The split function always interprets the PATTERN argument as a regular expression, even if you specify it as a string. This causes much confusion if the string contains regex metacharacters. So for clarity, always express the PATTERN argument as a regex.

    $string = 'Fred|Barney';
    @names = split '|', $string; #not ok, is ('F', 'r', 'e', 'd', '|', 'B', 'a' ...)
    @names = split m/[|]/, $string; #ok, is ('Fred', Barney')

When the PATTERN is a single space the split function has special behavior, so Perl::Critic forgives that usage. See "perldoc -f split" for more information.

CONFIGURATION

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This Policy is not configurable except for the standard options.

SEE ALSO

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Perl::Critic::Policy::ControlStrucutres::RequireBlockGrep (Perl::Critic::Policy::ControlStrucutres::RequireBlockGrep)

Perl::Critic::Policy::ControlStrucutres::RequireBlockMap (Perl::Critic::Policy::ControlStrucutres::RequireBlockMap)

AUTHOR

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Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

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Perl-Critic documentation  | view source Contained in the Perl-Critic distribution.