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Author image Tom Wyant
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NAME

PPIx::Regexp::Token::GroupType::Assertion - Represent a look ahead or look behind assertion

SYNOPSIS

 use PPIx::Regexp::Dumper;
 PPIx::Regexp::Dumper->new( 'qr{foo(?=bar)}smx' )
     ->print();

INHERITANCE

PPIx::Regexp::Token::GroupType::Assertion is a PPIx::Regexp::Token::GroupType.

PPIx::Regexp::Token::GroupType::Assertion has no descendants.

DESCRIPTION

This class represents the parenthesized look ahead and look behind assertions.

METHODS

This class provides the following public methods beyond those provided by its superclass.

is_look_ahead

This method returns a true value if the assertion is a look-ahead assertion, or a false value if it is a look-behind assertion.

is_positive

This method returns a true value if the assertion is a positive assertion, or a false value if it is a negative assertion.

SUPPORT

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

AUTHOR

Thomas R. Wyant, III wyant at cpan dot org

COPYRIGHT AND LICENSE

Copyright (C) 2009-2020 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.