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| 1 | <?php |
| 2 | |
| 3 | namespace Wikimedia\RemexHtml\TreeBuilder; |
| 4 | |
| 5 | use Wikimedia\RemexHtml\Tokenizer\Attributes; |
| 6 | use Wikimedia\RemexHtml\Tokenizer\PlainAttributes; |
| 7 | |
| 8 | /** |
| 9 | * The "before html" insertion mode |
| 10 | */ |
| 11 | class BeforeHtml extends InsertionMode { |
| 12 | public function characters( $text, $start, $length, $sourceStart, $sourceLength ) { |
| 13 | // Ignore whitespace |
| 14 | [ $part1, $part2 ] = $this->splitInitialMatch( |
| 15 | true, "\t\n\f\r ", $text, $start, $length, $sourceStart, $sourceLength ); |
| 16 | [ $start, $length, $sourceStart, $sourceLength ] = $part2; |
| 17 | if ( !$length ) { |
| 18 | return; |
| 19 | } |
| 20 | // Generate missing <html> tag |
| 21 | $this->builder->insertElement( 'html', new PlainAttributes, false, $sourceStart, 0 ); |
| 22 | $this->dispatcher->switchMode( Dispatcher::BEFORE_HEAD ) |
| 23 | ->characters( $text, $start, $length, $sourceStart, $sourceLength ); |
| 24 | } |
| 25 | |
| 26 | public function startTag( $name, Attributes $attrs, $selfClose, $sourceStart, $sourceLength ) { |
| 27 | if ( $name === 'html' ) { |
| 28 | $this->builder->insertElement( $name, $attrs, false, |
| 29 | $sourceStart, $sourceLength ); |
| 30 | $this->dispatcher->switchMode( Dispatcher::BEFORE_HEAD ); |
| 31 | } else { |
| 32 | $this->builder->insertElement( 'html', new PlainAttributes, false, |
| 33 | $sourceStart, 0 ); |
| 34 | $this->dispatcher->switchMode( Dispatcher::BEFORE_HEAD ) |
| 35 | ->startTag( $name, $attrs, $selfClose, $sourceStart, $sourceLength ); |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | public function endTag( $name, $sourceStart, $sourceLength ) { |
| 40 | $allowed = [ "head" => true, "body" => true, "html" => true, "br" => true ]; |
| 41 | if ( !isset( $allowed[$name] ) ) { |
| 42 | $this->builder->error( 'end tag not allowed before html', $sourceStart ); |
| 43 | return; |
| 44 | } |
| 45 | $this->builder->insertElement( 'html', new PlainAttributes, false, $sourceStart, 0 ); |
| 46 | $this->dispatcher->switchMode( Dispatcher::BEFORE_HEAD ) |
| 47 | ->endTag( $name, $sourceStart, $sourceLength ); |
| 48 | } |
| 49 | |
| 50 | public function endDocument( $pos ) { |
| 51 | $this->builder->insertElement( 'html', new PlainAttributes, false, $pos, 0 ); |
| 52 | $this->dispatcher->switchMode( Dispatcher::BEFORE_HEAD ) |
| 53 | ->endDocument( $pos ); |
| 54 | } |
| 55 | } |