PPIx::Regexp::Structure::CharClass - Represent a character class

PPIx-Regexp documentation Contained in the PPIx-Regexp distribution.

Index

Code Index:

NAME

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PPIx::Regexp::Structure::CharClass - Represent a character class

SYNOPSIS

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 use PPIx::Regexp::Dumper;
 PPIx::Regexp::Dumper->new( 'qr{[fo]}smx' )
     ->print();

INHERITANCE

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PPIx::Regexp::Structure::CharClass is a PPIx::Regexp::Structure.

PPIx::Regexp::Structure::CharClass has no descendants.

DESCRIPTION

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This class represents a square-bracketed character class.

METHODS

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This class provides the following public methods. Methods not documented here are private, and unsupported in the sense that the author reserves the right to change or remove them without notice.

negated

 $class->negated() and print "Class is negated\n";

This method returns true if the character class is negated -- that is, if the first token inside the left square bracket is a caret (^).

SUPPORT

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Support is by the author. Please file bug reports at http://rt.cpan.org, or in electronic mail to the author.

AUTHOR

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Thomas R. Wyant, III wyant at cpan dot org

COPYRIGHT AND LICENSE

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Copyright (C) 2009-2011 by Thomas R. Wyant, III

This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5.10.0. For more details, see the full text of the licenses in the directory LICENSES.

This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose.

PPIx-Regexp documentation Contained in the PPIx-Regexp distribution. 
package PPIx::Regexp::Structure::CharClass;

use strict;
use warnings;

use base qw{ PPIx::Regexp::Structure };

use PPIx::Regexp::Util qw{ __instance };

our $VERSION = '0.020';

sub _new {
    my ( $class, @args ) = @_;
    ref $class and $class = ref $class;
    my %brkt;
    $brkt{finish} = pop @args;
    $brkt{start} = shift @args;
    __instance( $args[0], 'PPIx::Regexp::Token::Operator' )
	and $args[0]->content() eq '^'
	and $brkt{type} = shift @args;
    return $class->SUPER::_new( \%brkt, @args );
}


sub negated {
    my ( $self ) = @_;
    return $self->type() ? 1 : 0;
}

# Called by the lexer to record the capture number.
sub __PPIX_LEXER__record_capture_number {
    my ( $self, $number ) = @_;
    return $number;
}

1;

__END__


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