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=head1 NAME
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Repl::Spec::Type::BooleanType - A parameter guard for boolean values.
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5
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=head1 SYNOPSIS
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This type guard ensures that a boolean parameter was passed by the user.
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The guard converts truthy values to 1 and falsy values to 0.
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Truthy values are "true", "ok", "on", "yes".
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Falsy values are "false", "nok", "off", "no".
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=head1 DESCRIPTION
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=head1 Methods
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=over 4
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=item C
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=item C
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Parameters: A single expression.
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Returns: 0 or 1.
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=item C
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=head1 SEE ALSO
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=cut
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package Repl::Spec::Type::BooleanType;
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2195
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use strict;
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2
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68
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2
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use warnings;
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2
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56
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2
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use Carp;
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4
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2
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826
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48
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# No parameters.
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sub new
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{
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2
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1
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my $invocant = shift;
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2
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my $class = ref($invocant) || $invocant;
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2
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my $self = {};
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2
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return bless $self, $class;
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}
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57
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sub guard
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{
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4
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4
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1
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my $self = shift;
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4
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7
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my $arg = shift;
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62
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4
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100
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return 1 if $arg =~ /true|yes|on|ok|1|t/i;
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2
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return 0 if $arg =~ /false|no|off|nok|0|f/i;
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0
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0
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croak sprintf("Expected type boolean but received '%s'.", $arg);
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}
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67
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sub name
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{
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1
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1
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1
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return 'boolean';
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}
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72
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1; |