/usr/share/perl5/PPI/Token/Attribute.pm is in libppi-perl 1.215-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | package PPI::Token::Attribute;
=pod
=head1 NAME
PPI::Token::Attribute - A token for a subroutine attribute
=head1 INHERITANCE
PPI::Token::Attribute
isa PPI::Token
isa PPI::Element
=head1 DESCRIPTION
In Perl, attributes are a relatively recent addition to the language.
Given the code C< sub foo : bar(something) {} >, the C<bar(something)>
part is the attribute.
A C<PPI::Token::Attribute> token represents the entire of the attribute,
as the braces and its contents are not parsed into the tree, and are
treated by Perl (and thus by us) as a single string.
=head1 METHODS
This class provides some additional methods beyond those provided by its
L<PPI::Token> and L<PPI::Element> parent classes.
Got any ideas for methods? Submit a report to rt.cpan.org!
=cut
use strict;
use PPI::Token ();
use vars qw{$VERSION @ISA};
BEGIN {
$VERSION = '1.215';
@ISA = 'PPI::Token';
}
#####################################################################
# PPI::Token::Attribute Methods
=pod
=head2 identifier
The C<identifier> attribute returns the identifier part of the attribute.
That is, for the attribute C<foo(bar)>, the C<identifier> method would
return C<"foo">.
=cut
sub identifier {
my $self = shift;
$self->{content} =~ /^(.+?)\(/ ? $1 : $self->{content};
}
=pod
=head2 parameters
The C<parameters> method returns the parameter strong for the attribute.
That is, for the attribute C<foo(bar)>, the C<parameters> method would
return C<"bar">.
Returns the parameters as a string (including the null string C<''> for
the case of an attribute such as C<foo()>.
Returns C<undef> if the attribute does not have parameters.
=cut
sub parameters {
my $self = shift;
$self->{content} =~ /\((.+)\)$/ ? $1 : undef;
}
#####################################################################
# Tokenizer Methods
sub __TOKENIZER__on_char {
my $class = shift;
my $t = shift;
my $char = substr( $t->{line}, $t->{line_cursor}, 1 );
# Unless this is a '(', we are finished.
unless ( $char eq '(' ) {
# Finalise and recheck
return $t->_finalize_token->__TOKENIZER__on_char( $t );
}
# This is a bar(...) style attribute.
# We are currently on the ( so scan in until the end.
# We finish on the character AFTER our end
my $string = $class->__TOKENIZER__scan_for_end( $t );
if ( ref $string ) {
# EOF
$t->{token}->{content} .= $$string;
$t->_finalize_token;
return 0;
}
# Found the end of the attribute
$t->{token}->{content} .= $string;
$t->_finalize_token->__TOKENIZER__on_char( $t );
}
# Scan for a close braced, and take into account both escaping,
# and open close bracket pairs in the string. When complete, the
# method leaves the line cursor on the LAST character found.
sub __TOKENIZER__scan_for_end {
my $t = $_[1];
# Loop as long as we can get new lines
my $string = '';
my $depth = 0;
while ( exists $t->{line} ) {
# Get the search area
my $search = $t->{line_cursor}
? substr( $t->{line}, $t->{line_cursor} )
: $t->{line};
# Look for a match
unless ( $search =~ /^((?:\\.|[^()])*?[()])/ ) {
# Load in the next line and push to first character
$string .= $search;
$t->_fill_line(1) or return \$string;
$t->{line_cursor} = 0;
next;
}
# Add to the string
$string .= $1;
$t->{line_cursor} += length $1;
# Alter the depth and continue if we arn't at the end
$depth += ($1 =~ /\($/) ? 1 : -1 and next;
# Found the end
return $string;
}
# Returning the string as a reference indicates EOF
\$string;
}
1;
=pod
=head1 SUPPORT
See the L<support section|PPI/SUPPORT> in the main module.
=head1 AUTHOR
Adam Kennedy E<lt>adamk@cpan.orgE<gt>
=head1 COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy.
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the
LICENSE file included with this module.
=cut
|