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
|
#!perl
# Copyright 2022 Jeffrey Kegler
# This file is part of Marpa::R2. Marpa::R2 is free software: you can
# redistribute it and/or modify it under the terms of the GNU Lesser
# General Public License as published by the Free Software Foundation,
# either version 3 of the License, or (at your option) any later version.
#
# Marpa::R2 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. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser
# General Public License along with Marpa::R2. If not, see
# http://www.gnu.org/licenses/.
use 5.010001;
use strict;
use warnings;
use English qw( -no_match_vars );
use List::Util;
use Test::More;
use lib 'tool/lib';
BEGIN {
use lib 'html/tool/lib';
my $eval_result = eval { require Marpa::R2::HTML::Test::Util; 1 };
if ( !$eval_result ) {
Test::More::plan tests => 1;
Test::More::fail(
"Could not load Marpa::R2::HTML::Test::Util; $EVAL_ERROR");
exit 0;
} ## end if ( !$eval_result )
} ## end BEGIN
BEGIN { Marpa::R2::HTML::Test::Util::load_or_skip_all('HTML::Parser'); }
BEGIN { use Test::More tests => 9; }
use Marpa::R2::Test;
# Marpa::R2::Display
# name: 'HTML Synopsis: Delete Tables'
use Marpa::R2::HTML qw(html);
my $with_table = 'Text<table><tr><td>I am a cell</table> More Text';
my $no_table = html( \$with_table,
{ table => sub { return q{} } });
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Delete Everything But Tables'
my %handlers_to_keep_only_tables = (
table => sub { return Marpa::R2::HTML::original() },
':TOP' => sub { return \( join q{}, @{ Marpa::R2::HTML::values() } ) }
);
my $only_table = html( \$with_table, \%handlers_to_keep_only_tables );
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Defective Tables'
my $with_bad_table = 'Text<tr>I am a cell</table> More Text';
my $only_bad_table = html( \$with_bad_table, \%handlers_to_keep_only_tables );
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Delete Comments'
my $with_comment = 'Text <!-- I am a comment --> I am not a comment';
my $no_comment = html( \$with_comment,
{ ':COMMENT' => sub { return q{} } }
);
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Change Title'
my $old_title = '<title>Old Title</title>A little html text';
my $new_title = html(
\$old_title,
{ 'title' => sub { return '<title>New Title</title>' }
}
);
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Delete by Class'
my $stuff_to_be_edited = '<p>A<p class="delete_me">B<p>C';
my $edited_stuff = html( \$stuff_to_be_edited,
{ '.delete_me' => sub { return q{} } });
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Supply Missing Tags'
sub supply_missing_tags {
my $tagname = Marpa::R2::HTML::tagname();
return if Marpa::R2::HTML::is_empty_element($tagname);
return
( Marpa::R2::HTML::start_tag() // "<$tagname>\n" )
. Marpa::R2::HTML::contents()
. ( Marpa::R2::HTML::end_tag() // "</$tagname>\n" );
} ## end sub supply_missing_tags
my $html_with_just_a_title = '<title>I am a title and That is IT!';
my $valid_html_with_all_tags =
html( \$html_with_just_a_title, { q{*} => \&supply_missing_tags } );
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Synopsis: Maximum Element Depth'
sub depth_below_me {
return List::Util::max( 0, @{ Marpa::R2::HTML::values() } );
}
my %handlers_to_calculate_maximum_element_depth = (
q{*} => sub { return 1 + depth_below_me() },
':TOP' => sub { return depth_below_me() },
);
my $maximum_depth_with_just_a_title = html( \$html_with_just_a_title,
\%handlers_to_calculate_maximum_element_depth );
# Marpa::R2::Display::End
my $maximum_depth_with_all_tags_supplied = html( $valid_html_with_all_tags,
\%handlers_to_calculate_maximum_element_depth );
Marpa::R2::Test::is( $maximum_depth_with_just_a_title,
3, 'compute maximum depth' );
Marpa::R2::Test::is(
$maximum_depth_with_just_a_title,
$maximum_depth_with_all_tags_supplied,
'compare maximum depths'
);
my $expected_valid_html_with_all_tags = <<'END_OF_EXPECTED';
<html>
<head>
<title>I am a title and That is IT!</title>
</head>
<body>
</body>
</html>
END_OF_EXPECTED
Marpa::R2::Test::is( ${$no_table}, 'Text More Text', 'delete tables' );
Marpa::R2::Test::is(
${$only_table},
'<table><tr><td>I am a cell</table>',
'keep only tables'
);
Marpa::R2::Test::is(
${$only_bad_table},
'<tr>I am a cell</table>',
'keep only tables -- bad table'
);
Marpa::R2::Test::is(
${$no_comment},
'Text I am not a comment',
'delete comments'
);
Marpa::R2::Test::is(
${$new_title},
'<title>New Title</title>A little html text',
'replace title'
);
Marpa::R2::Test::is( ${$edited_stuff}, '<p>A<p>C', 'delete by class name' );
Marpa::R2::Test::is(
${$valid_html_with_all_tags},
$expected_valid_html_with_all_tags,
'supply tags'
);
|
