/usr/share/perl5/HTML/TokeParser/Simple/Token/Tag/Start.pm is in libhtml-tokeparser-simple-perl 3.16-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 | package HTML::TokeParser::Simple::Token::Tag::Start;
use strict;
our $VERSION = '3.16';
use base 'HTML::TokeParser::Simple::Token::Tag';
use HTML::Entities qw/encode_entities/;
my %TOKEN = (
tag => 1,
attr => 2,
attrseq => 3,
text => 4
);
my %INSTANCE;
sub _init {
my $self = shift;
if ('S' eq $self->[0]) {
$INSTANCE{$self}{offset} = 0;
$INSTANCE{$self}{tag} = $self->[1];
}
else {
$INSTANCE{$self}{offset} = -1;
my $tag = $self->[0];
$tag =~ s/^\///;
$INSTANCE{$self}{tag} = $tag;
}
return $self;
}
sub _get_offset { return $INSTANCE{+shift}{offset} }
sub _get_text { return shift->[-1] }
sub _get_tag {
my $self = shift;
return $INSTANCE{$self}{tag};
}
sub _get_attrseq {
my $self = shift;
my $index = $TOKEN{attrseq} + $self->_get_offset;
return $self->[$index];
}
sub _get_attr {
my $self = shift;
my $index = $TOKEN{attr} + $self->_get_offset;
return $self->[$index];
}
sub DESTROY { delete $INSTANCE{+shift} }
sub return_attr { goto &get_attr }
sub return_attrseq { goto &get_attrseq }
sub return_tag { goto &get_tag }
# attribute munging methods
sub set_attr {
my ($self, $name, $value) = @_;
return 'HASH' eq ref $name
? $self->_set_attr_from_hashref($name)
: $self->_set_attr_from_string($name, $value);
}
sub _set_attr_from_string {
my ($self, $name, $value) = @_;
$name = lc $name;
my $attr = $self->get_attr;
my $attrseq = $self->get_attrseq;
unless (exists $attr->{$name}) {
push @$attrseq => $name;
}
$attr->{$name} = $value;
$self->rewrite_tag;
}
sub _set_attr_from_hashref {
my ($self, $attr_hash) = @_;
while (my ($attr, $value) = each %$attr_hash) {
$self->set_attr($attr, $value);
}
return $self;
}
sub rewrite_tag {
my $self = shift;
my $attr = $self->get_attr;
my $attrseq = $self->get_attrseq;
# capture the final slash if the tag is self-closing
my ($self_closing) = $self->_get_text =~ m{(\s?/)>$};
$self_closing ||= '';
my $tag = '';
foreach ( @$attrseq ) {
next if $_ eq '/'; # is this a bug in HTML::TokeParser?
$tag .= sprintf qq{ %s="%s"} => $_, encode_entities($attr->{$_});
}
my $first = $self->is_end_tag ? '/' : '';
$tag = sprintf '<%s%s%s%s>', $first, $self->get_tag, $tag, $self_closing;
$self->_set_text($tag);
return $self;
}
sub delete_attr {
my ($self,$name) = @_;
$name = lc $name;
my $attr = $self->get_attr;
return unless exists $attr->{$name};
delete $attr->{$name};
my $attrseq = $self->get_attrseq;
@$attrseq = grep { $_ ne $name } @$attrseq;
$self->rewrite_tag;
}
# get_foo methods
sub return_text {
require Carp;
Carp::carp('return_text() is deprecated. Use as_is() instead');
goto &as_is;
}
sub as_is {
return shift->_get_text;
}
sub get_tag {
return shift->_get_tag;
}
sub get_token0 {
return '';
}
sub get_attr {
my $self = shift;
my $attributes = $self->_get_attr;
return @_ ? $attributes->{lc shift} : $attributes;
}
sub get_attrseq {
my $self = shift;
$self->_get_attrseq;
}
# is_foo methods
sub is_tag {
my $self = shift;
return $self->is_start_tag( @_ );
}
sub is_start_tag {
my ($self, $tag) = @_;
return $tag ? $self->_match_tag($tag) : 1;
}
sub _match_tag {
my ($self, $tag) = @_;
return 'Regexp' eq ref $tag
? $self->_get_tag =~ $tag
: $self->_get_tag eq lc $tag;
}
1;
__END__
=head1 NAME
HTML::TokeParser::Simple::Token::Tag::Start - Token.pm "start tag" class.
=head1 SYNOPSIS
use HTML::TokeParser::Simple;
my $p = HTML::TokeParser::Simple->new( $somefile );
while ( my $token = $p->get_token ) {
# This prints all text in an HTML doc (i.e., it strips the HTML)
next unless $token->is_text;
print $token->as_is;
}
=head1 DESCRIPTION
This class does most of the heavy lifting for C<HTML::TokeParser::Simple>. See
the C<HTML::TokeParser::Simple> docs for details.
=head1 OVERRIDDEN METHODS
=over 4
=item * as_is
=item * delete_attr
=item * get_attr
=item * get_attrseq
=item * get_tag
=item * get_token0
=item * is_start_tag
=item * is_tag
=item * return_attr
=item * return_attrseq
=item * return_tag
=item * return_text
=item * rewrite_tag
=item * set_attr
=back
=cut
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