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Initial.php
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Initial.php
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<?php
namespace Wikimedia\RemexHtml\TreeBuilder;
use Wikimedia\RemexHtml\HTMLData;
use Wikimedia\RemexHtml\Tokenizer\Attributes;
/**
* The "initial" insertion mode
*/
class Initial extends InsertionMode {
/**
* The doctypes listed in the spec which are allowed without generating a
* parse error. A 2-d array where each row gives the doctype name, the
* public identifier and the system identifier.
*
* @var array
*/
private static $allowedDoctypes = [
[ 'html', '-//W3C//DTD HTML 4.0//EN', null ],
[ 'html', '-//W3C//DTD HTML 4.0//EN', 'http://www.w3.org/TR/REC-html40/strict.dtd' ],
[ 'html', '-//W3C//DTD HTML 4.01//EN', null ],
[ 'html', '-//W3C//DTD HTML 4.01//EN', 'http://www.w3.org/TR/html4/strict.dtd' ],
[ 'html', '-//W3C//DTD XHTML 1.0 Strict//EN',
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd' ],
[ 'html', '-//W3C//DTD XHTML 1.1//EN', 'http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd' ]
];
public function characters( $text, $start, $length, $sourceStart, $sourceLength ) {
// Ignore whitespace
[ $part1, $part2 ] = $this->splitInitialMatch(
true, "\t\n\f\r ", $text, $start, $length, $sourceStart, $sourceLength );
[ $start, $length, $sourceStart, $sourceLength ] = $part2;
if ( !$length ) {
return;
}
if ( !$this->builder->isIframeSrcdoc ) {
$this->error( 'missing doctype', $sourceStart );
$this->builder->quirks = TreeBuilder::QUIRKS;
}
$this->dispatcher->switchMode( Dispatcher::BEFORE_HTML )
->characters( $text, $start, $length, $sourceStart, $sourceLength );
}
public function startTag( $name, Attributes $attrs, $selfClose, $sourceStart, $sourceLength ) {
if ( !$this->builder->isIframeSrcdoc ) {
$this->error( 'missing doctype', $sourceStart );
$this->builder->quirks = TreeBuilder::QUIRKS;
}
$this->dispatcher->switchMode( Dispatcher::BEFORE_HTML )
->startTag( $name, $attrs, $selfClose, $sourceStart, $sourceLength );
}
public function endTag( $name, $sourceStart, $sourceLength ) {
if ( !$this->builder->isIframeSrcdoc ) {
$this->error( 'missing doctype', $sourceStart );
$this->builder->quirks = TreeBuilder::QUIRKS;
}
$this->dispatcher->switchMode( Dispatcher::BEFORE_HTML )
->endTag( $name, $sourceStart, $sourceLength );
}
public function doctype( $name, $public, $system, $quirks, $sourceStart, $sourceLength ) {
if ( ( $name !== 'html' || $public !== null
|| ( $system !== null && $system !== 'about:legacy-compat' )
)
&& !in_array( [ $name, $public, $system ], self::$allowedDoctypes, true )
) {
$this->error( 'invalid doctype', $sourceStart );
}
$quirks = $quirks ? TreeBuilder::QUIRKS : TreeBuilder::NO_QUIRKS;
$quirksIfNoSystem = '~-//W3C//DTD HTML 4\.01 Frameset//|' .
'-//W3C//DTD HTML 4\.01 Transitional//~Ai';
$limitedQuirks = '~-//W3C//DTD XHTML 1\.0 Frameset//|' .
'-//W3C//DTD XHTML 1\.0 Transitional//~Ai';
if ( $name !== 'html'
|| $public === '-//W3O//DTD W3 HTML Strict 3.0//EN//'
|| $public === '-/W3C/DTD HTML 4.0 Transitional/EN'
|| $public === 'HTML'
|| $system === 'http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd'
|| ( $system === null && preg_match( $quirksIfNoSystem, $public ?? '' ) )
|| preg_match( HTMLData::$quirkyPrefixRegex, $public ?? '' )
) {
$quirks = TreeBuilder::QUIRKS;
} elseif ( !$this->builder->isIframeSrcdoc
&& (
preg_match( $limitedQuirks, $public ?? '' )
|| ( $system !== null && preg_match( $quirksIfNoSystem, $public ?? '' ) )
)
) {
$quirks = TreeBuilder::LIMITED_QUIRKS;
}
$name ??= '';
$public ??= '';
$system ??= '';
$this->builder->doctype( $name, $public, $system, $quirks,
$sourceStart, $sourceLength );
$this->dispatcher->switchMode( Dispatcher::BEFORE_HTML );
}
public function endDocument( $pos ) {
if ( !$this->builder->isIframeSrcdoc ) {
$this->error( 'missing doctype', $pos );
$this->builder->quirks = TreeBuilder::QUIRKS;
}
$this->dispatcher->switchMode( Dispatcher::BEFORE_HTML )
->endDocument( $pos );
}
}

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Expires
Aug 19 2026, 16:18 (4 w, 2 d ago)
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Initial.php (3 KB)

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