NAME

       PPIx::Regexp::Structure - Represent a structure.

SYNOPSIS

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

INHERITANCE

       "PPIx::Regexp::Structure" is a PPIx::Regexp::Node.

       "PPIx::Regexp::Structure" is the parent of PPIx::Regexp::Structure::Assertion,
       PPIx::Regexp::Structure::BranchReset, PPIx::Regexp::Structure::Capture,
       PPIx::Regexp::Structure::CharClass, PPIx::Regexp::Structure::Code,
       PPIx::Regexp::Structure::Main, PPIx::Regexp::Structure::Modifier,
       PPIx::Regexp::Structure::Quantifier, PPIx::Regexp::Structure::Subexpression,
       PPIx::Regexp::Structure::Switch and PPIx::Regexp::Structure::Unknown.

DESCRIPTION

       This class represents a bracketed construction of some sort. The brackets considered part
       of the structure, but not inside it. So the "elements()" method returns the brackets if
       they are defined, but the "children()" method does not.

METHODS

       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.

   finish
        my $elem = $struct->finish();
        my @elem = $struct->finish();
        my $elem = $struct->finish( 0 );

       Returns the finishing structure element. This is included in the "elements" but not in the
       "children".

       The finishing element is actually an array, though it should never have more than one
       element. Calling "finish" in list context gets you all elements of the array. Calling it
       in scalar context gets you an element of the array, defaulting to element 0 if no argument
       is passed.

   start
        my $elem = $struct->start();
        my @elem = $struct->start();
        my $elem = $struct->start( 0 );

       Returns the starting structure element. This is included in the "elements" but not in the
       "children".

       The starting element is actually an array. The first element (element 0) is the actual
       starting delimiter. Subsequent elements, if any, are insignificant elements (comments or
       white space) absorbed into the start element for ease of parsing subsequent elements.

       Calling "start" in list context gets you all elements of the array.  Calling it in scalar
       context gets you an element of the array, defaulting to element 0 if no argument is
       passed.

   type
        my $elem = $struct->type();
        my @elem = $struct->type();
        my $elem = $struct->type( 0 );

       Returns the group type if any. This will be the leading PPIx::Regexp::Token::GroupType
       token if any. This is included in "elements" but not in "children".

       The type is actually an array. The first element (element 0) is the actual type
       determiner. Subsequent elements, if any, are insignificant elements (comments or white
       space) absorbed into the type element for consistency with the way the start element is
       handled.

       Calling "type" in list context gets you all elements of the array.  Calling it in scalar
       context gets you an element of the array, defaulting to element 0 if no argument is
       passed.

SUPPORT

       Support is by the author. Please file bug reports at <http://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) 2009-2016 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.