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#!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;
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 { Test::More::plan tests => 2; }
use Marpa::R2::HTML;
use lib 'tool/lib';
use Marpa::R2::Test;
# Non-synopsis example in HTML.pod
# Marpa::R2::Display
# name: 'HTML Pod: Handler Precedence'
my $html = <<'END_OF_HTML';
<span class="high">High Span</span>
<span class="low">Low Span</span>
<div class="high">High Div</div>
<div class="low">Low Div</div>
<div class="oddball">Oddball Div</div>
END_OF_HTML
our @RESULTS = ();
Marpa::R2::HTML::html(
\$html,
{ q{*} => sub {
push @RESULTS, 'wildcard handler: ' . Marpa::R2::HTML::contents();
},
'div' => sub {
push @RESULTS, '"div" handler: ' . Marpa::R2::HTML::contents();
},
'.high' => sub {
push @RESULTS, '".high" handler: ' . Marpa::R2::HTML::contents();
},
'div.high' => sub {
push @RESULTS,
'"div.high" handler: ' . Marpa::R2::HTML::contents();
},
'.oddball' => sub {
push @RESULTS,
'".oddball" handler: ' . Marpa::R2::HTML::contents();
},
'body' => sub {undef},
'head' => sub {undef},
'html' => sub {undef},
'p' => sub {undef},
}
);
# Marpa::R2::Display::End
# Marpa::R2::Display
# name: 'HTML Pod: Handler Precedence Result'
# start-after-line: EXPECTED_RESULT
# end-before-line: '^EXPECTED_RESULT$'
my $expected_result = <<'EXPECTED_RESULT';
".high" handler: High Span
wildcard handler: Low Span
"div.high" handler: High Div
"div" handler: Low Div
".oddball" handler: Oddball Div
EXPECTED_RESULT
# Marpa::R2::Display::End
my $result = join "\n", @RESULTS;
Marpa::R2::Test::is( "$result\n", $expected_result,
'handler precedence example' );
# Marpa::R2::Display
# name: 'HTML Pod: Structure vs. Element Example'
# start-after-line: END_OF_EXAMPLE
# end-before-line: '^END_OF_EXAMPLE$'
my $tagged_html_example = <<'END_OF_EXAMPLE';
<title>Short</title><p>Text</head><head>
END_OF_EXAMPLE
# Marpa::R2::Display::End
my $expected_structured_result = <<'END_OF_EXPECTED';
<html>
<head>
<title>Short</title></head>
<body>
<p>Text</p>
</head><head>
</body>
</html>
END_OF_EXPECTED
sub supply_missing_tags {
my $tagname = Marpa::R2::HTML::tagname();
return
( Marpa::R2::HTML::start_tag() // "<$tagname>\n" )
. Marpa::R2::HTML::contents()
. ( Marpa::R2::HTML::end_tag() // "</$tagname>\n" );
} ## end sub supply_missing_tags
my $structured_html_ref =
Marpa::R2::HTML::html( \$tagged_html_example,
{ q{*} => \&supply_missing_tags } );
Marpa::R2::Test::is( ${$structured_html_ref}, $expected_structured_result,
'structure vs. tags example' );
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