1PPIx::Regexp::StructureU(s3e)r Contributed Perl DocumentaPtPiIoxn::Regexp::Structure(3)
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NAME

6       PPIx::Regexp::Structure - Represent a structure.
7

SYNOPSIS

9        use PPIx::Regexp::Dumper;
10        PPIx::Regexp::Dumper->new( 'qr{(foo)}' )->print();
11

INHERITANCE

13       "PPIx::Regexp::Structure" is a PPIx::Regexp::Node.
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15       "PPIx::Regexp::Structure" is the parent of
16       PPIx::Regexp::Structure::Assertion,
17       PPIx::Regexp::Structure::BranchReset, PPIx::Regexp::Structure::Capture,
18       PPIx::Regexp::Structure::CharClass, PPIx::Regexp::Structure::Code,
19       PPIx::Regexp::Structure::Main, PPIx::Regexp::Structure::Modifier,
20       PPIx::Regexp::Structure::Quantifier,
21       PPIx::Regexp::Structure::Script_Run,
22       PPIx::Regexp::Structure::Subexpression, PPIx::Regexp::Structure::Switch
23       and PPIx::Regexp::Structure::Unknown.
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DESCRIPTION

26       This class represents a bracketed construction of some sort. The
27       brackets are considered part of the structure, but not inside it. So
28       the "elements()" method returns the brackets if they are defined, but
29       the "children()" method does not.
30

METHODS

32       This class provides the following public methods. Methods not
33       documented here are private, and unsupported in the sense that the
34       author reserves the right to change or remove them without notice.
35
36   elements
37       This override returns all components of the structure, including those
38       that define it.
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40   finish
41        my $elem = $struct->finish();
42        my @elem = $struct->finish();
43        my $elem = $struct->finish( 0 );
44
45       Returns the finishing structure element. This is included in the
46       "elements" but not in the "children".
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48       The finishing element is actually an array, though it should never have
49       more than one element. Calling "finish" in list context gets you all
50       elements of the array. Calling it in scalar context gets you an element
51       of the array, defaulting to element 0 if no argument is passed.
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53   start
54        my $elem = $struct->start();
55        my @elem = $struct->start();
56        my $elem = $struct->start( 0 );
57
58       Returns the starting structure element. This is included in the
59       "elements" but not in the "children".
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61       The starting element is actually an array. The first element (element
62       0) is the actual starting delimiter. Subsequent elements, if any, are
63       insignificant elements (comments or white space) absorbed into the
64       start element for ease of parsing subsequent elements.
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66       Calling "start" in list context gets you all elements of the array.
67       Calling it in scalar context gets you an element of the array,
68       defaulting to element 0 if no argument is passed.
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70   type
71        my $elem = $struct->type();
72        my @elem = $struct->type();
73        my $elem = $struct->type( 0 );
74
75       Returns the group type if any. This will be the leading
76       PPIx::Regexp::Token::GroupType token if any. This is included in
77       "elements" but not in "children".
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79       The type is actually an array. The first element (element 0) is the
80       actual type determiner. Subsequent elements, if any, are insignificant
81       elements (comments or white space) absorbed into the type element for
82       consistency with the way the start element is handled.
83
84       Calling "type" in list context gets you all elements of the array.
85       Calling it in scalar context gets you an element of the array,
86       defaulting to element 0 if no argument is passed.
87

SUPPORT

89       Support is by the author. Please file bug reports at
90       <http://rt.cpan.org>, or in electronic mail to the author.
91

AUTHOR

93       Thomas R. Wyant, III wyant at cpan dot org
94

96       Copyright (C) 2009-2019 by Thomas R. Wyant, III
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98       This program is free software; you can redistribute it and/or modify it
99       under the same terms as Perl 5.10.0. For more details, see the full
100       text of the licenses in the directory LICENSES.
101
102       This program is distributed in the hope that it will be useful, but
103       without any warranty; without even the implied warranty of
104       merchantability or fitness for a particular purpose.
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108perl v5.30.0                      2019-09-02        PPIx::Regexp::Structure(3)
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