X-Git-Url: https://scripts.mit.edu/gitweb/autoinstallsdev/mediawiki.git/blobdiff_plain/19e297c21b10b1b8a3acad5e73fc71dcb35db44a..6932310fd58ebef145fa01eb76edf7150284d8ea:/vendor/wikimedia/remex-html/RemexHtml/TreeBuilder/InBody.php

diff --git a/vendor/wikimedia/remex-html/RemexHtml/TreeBuilder/InBody.php b/vendor/wikimedia/remex-html/RemexHtml/TreeBuilder/InBody.php
new file mode 100644
index 00000000..4a2e8c0c
--- /dev/null
+++ b/vendor/wikimedia/remex-html/RemexHtml/TreeBuilder/InBody.php
@@ -0,0 +1,675 @@
+<?php
+
+namespace RemexHtml\TreeBuilder;
+use RemexHtml\HTMLData;
+use RemexHtml\Tokenizer\Attributes;
+use RemexHtml\Tokenizer\PlainAttributes;
+use RemexHtml\Tokenizer\Tokenizer;
+
+/**
+ * The "in body" insertion mode.
+ */
+class InBody extends InsertionMode {
+	/**
+	 * The tag names h1-h6, which are referred to at a couple of points.
+	 */
+	static private $headingNames = [ 'h1' => true, 'h2' => true, 'h3' => true, 'h4' => true,
+		'h5' => true, 'h6' => true ];
+
+	/**
+	 * The tag names which can be closed by </body> or </html> without causing
+	 * an error.
+	 */
+	static private $implicitClose = [
+		'dd' => true,
+		'dt' => true,
+		'li' => true,
+		'optgroup' => true,
+		'option' => true,
+		'p' => true,
+		'rb' => true,
+		'rp' => true,
+		'rt' => true,
+		'rtc' => true,
+		'tbody' => true,
+		'td' => true,
+		'tfoot' => true,
+		'th' => true,
+		'thead' => true,
+		'tr' => true,
+		'body' => true,
+		'html' => true,
+	];
+
+	public function characters( $text, $start, $length, $sourceStart, $sourceLength ) {
+		$handleNonNull = function ( $text, $start, $length, $sourceStart, $sourceLength ) {
+			if ( strspn( $text, "\t\n\f\r ", $start, $length ) !== $length ) {
+				$this->builder->framesetOK = false;
+			}
+			$this->builder->reconstructAFE( $sourceStart );
+			$this->builder->insertCharacters( $text, $start, $length, $sourceStart, $sourceLength );
+		};
+		if ( !$this->builder->ignoreNulls ) {
+			$this->stripNulls( $handleNonNull, $text, $start, $length, $sourceStart, $sourceLength );
+		} else {
+			$handleNonNull( $text, $start, $length, $sourceStart, $sourceLength );
+		}
+	}
+
+	public function startTag( $name, Attributes $attrs, $selfClose, $sourceStart, $sourceLength ) {
+		$mode = null;
+		$textMode = null;
+		$tokenizerState = null;
+		$isNewAFE = false;
+		$builder = $this->builder;
+		$stack = $builder->stack;
+		$dispatcher = $this->dispatcher;
+		$void = false;
+
+		switch ( $name ) {
+		case 'html':
+			$builder->error( 'merging unexpected html tag', $sourceStart );
+			if ( $stack->hasTemplate() ) {
+				return;
+			}
+			if ( $stack->length() < 1 ) {
+				return;
+			}
+			$builder->mergeAttributes( $stack->item( 0 ), $attrs, $sourceStart, $sourceLength );
+			return;
+
+		case 'base':
+		case 'basefont':
+		case 'bgsound':
+		case 'link':
+		case 'meta':
+		case 'noframes':
+		case 'script':
+		case 'style':
+		case 'template':
+		case 'title':
+			$dispatcher->inHead->startTag(
+				$name, $attrs, $selfClose, $sourceStart, $sourceLength );
+			return;
+
+		case 'body':
+			if ( $stack->length() < 2 || $stack->hasTemplate() ) {
+				$builder->error( 'ignored unexpected body tag', $sourceStart );
+				return;
+			}
+			$body = $stack->item( 1 );
+			if ( $body->htmlName !== 'body' ) {
+				$builder->error( 'ignored unexpected body tag', $sourceStart );
+				return;
+			}
+			$builder->error( 'merged unexpected body tag', $sourceStart );
+			$this->builder->framesetOK = false;
+			$this->builder->mergeAttributes( $body, $attrs, $sourceStart, $sourceLength );
+			return;
+
+		case 'frameset':
+			if ( !$builder->framesetOK || $stack->length() < 2 || $stack->hasTemplate() ) {
+				$builder->error( 'ignored unexpected frameset tag', $sourceStart );
+				return;
+			}
+			$body = $stack->item( 1 );
+			if ( $body->htmlName !== 'body' ) {
+				$builder->error( 'ignored unexpected frameset tag', $sourceStart );
+				return;
+			}
+			$builder->error( 'unexpected frameset tag erases body contents', $sourceStart );
+			$builder->handler->removeNode( $body, $sourceStart );
+			// Pop all the nodes from the bottom of the stack of open elements,
+			// from the current node up to, but not including, the root html element.
+			$n = $stack->length();
+			for ( $i = 0; $i < $n - 1; $i++ ) {
+				$stack->pop();
+			}
+			$mode = Dispatcher::IN_FRAMESET;
+			// Insert as normal
+			break;
+
+		case 'address':
+		case 'article':
+		case 'aside':
+		case 'blockquote':
+		case 'center':
+		case 'details':
+		case 'dir':
+		case 'div':
+		case 'dl':
+		case 'fieldset':
+		case 'figcaption':
+		case 'figure':
+		case 'footer':
+		case 'header':
+		case 'main':
+		case 'menu':
+		case 'nav':
+		case 'ol':
+		case 'p':
+		case 'section':
+		case 'summary':
+		case 'ul':
+			$builder->closePInButtonScope( $sourceStart );
+			break;
+
+		case 'h1':
+		case 'h2':
+		case 'h3':
+		case 'h4':
+		case 'h5':
+		case 'h6':
+			$builder->closePInButtonScope( $sourceStart );
+			if ( isset( self::$headingNames[$stack->current->htmlName] ) ) {
+				$builder->error( 'invalid nested heading, closing previous', $sourceStart );
+				$builder->pop( $sourceStart, 0 );
+			}
+			break;
+
+		case 'pre':
+		case 'listing':
+			$builder->closePInButtonScope( $sourceStart );
+			$builder->framesetOK = false;
+			$textMode = Dispatcher::IN_PRE;
+			break;
+
+		case 'form':
+			if ( $builder->formElement !== null && !$stack->hasTemplate() ) {
+				$builder->error( 'ignoring nested form tag', $sourceStart );
+				return;
+			}
+			$builder->closePInButtonScope( $sourceStart );
+			$elt = $builder->insertElement( 'form', $attrs, false,
+				$sourceStart, $sourceLength );
+			if ( !$stack->hasTemplate() ) {
+				$builder->formElement = $elt;
+			}
+			return;
+
+		case 'li':
+			$builder->framesetOK = false;
+			for ( $idx = $stack->length() - 1; $idx >= 0; $idx-- ) {
+				$node = $stack->item( $idx );
+				$htmlName = $node->htmlName;
+				if ( $htmlName === 'li' ) {
+					$builder->generateImpliedEndTagsAndPop( 'li', $sourceStart, 0 );
+					break;
+				}
+				if ( isset( HTMLData::$special[$node->namespace][$node->name] )
+					&& $htmlName !== 'address' && $htmlName !== 'div' && $htmlName !== 'p'
+				) {
+					break;
+				}
+			}
+			$builder->closePInButtonScope( $sourceStart );
+			break;
+
+		case 'dd':
+		case 'dt':
+			$builder->framesetOK = false;
+			for ( $idx = $stack->length() - 1; $idx >= 0; $idx-- ) {
+				$node = $stack->item( $idx );
+				$htmlName = $node->htmlName;
+				if ( $htmlName === 'dd' || $htmlName === 'dt' ) {
+					$builder->generateImpliedEndTagsAndPop( $htmlName, $sourceStart, 0 );
+					break;
+				}
+				if ( isset( HTMLData::$special[$node->namespace][$node->name] )
+					&& $htmlName !== 'address' && $htmlName !== 'div' && $htmlName !== 'p'
+				) {
+					break;
+				}
+			}
+			$builder->closePInButtonScope( $sourceStart );
+			break;
+
+		case 'plaintext':
+			$builder->closePInButtonScope( $sourceStart );
+			$tokenizerState = Tokenizer::STATE_PLAINTEXT;
+			break;
+
+		case 'button':
+			if ( $stack->isInScope( 'button' ) ) {
+				$builder->error( 'invalid nested button tag, closing previous', $sourceStart );
+				$builder->generateImpliedEndTags( false, $sourceStart );
+				$builder->popAllUpToName( 'button', $sourceStart, 0 );
+			}
+			$builder->reconstructAFE( $sourceStart );
+			$builder->framesetOK = false;
+			break;
+
+		case 'a':
+			$elt = $builder->afe->findElementByName( 'a' );
+			if ( $elt !== null ) {
+				$builder->error( 'invalid nested a tag, closing previous', $sourceStart );
+				$builder->adoptionAgency( 'a', $sourceStart, 0 );
+				if ( $builder->afe->isInList( $elt ) ) {
+					$builder->afe->remove( $elt );
+				}
+				if ( $elt->stackIndex !== null ) {
+					$stack->remove( $elt );
+				}
+			}
+			$builder->reconstructAFE( $sourceStart );
+			$isNewAFE = true;
+			break;
+
+		case 'b':
+		case 'big':
+		case 'code':
+		case 'em':
+		case 'font':
+		case 'i':
+		case 's':
+		case 'small':
+		case 'strike':
+		case 'strong':
+		case 'tt':
+		case 'u':
+			$builder->reconstructAFE( $sourceStart );
+			$isNewAFE = true;
+			break;
+
+		case 'nobr':
+			$builder->reconstructAFE( $sourceStart );
+			if ( $stack->isInScope( 'nobr' ) ) {
+				$builder->error( 'invalid nested nobr tag, closing previous', $sourceStart );
+				$builder->adoptionAgency( 'nobr', $sourceStart, 0 );
+				$builder->reconstructAFE( $sourceStart );
+			}
+			$isNewAFE = true;
+			break;
+
+		case 'applet':
+		case 'marquee':
+		case 'object':
+			$builder->reconstructAFE( $sourceStart );
+			$builder->afe->insertMarker();
+			$builder->framesetOK = false;
+			break;
+
+		case 'table':
+			if ( $builder->quirks !== TreeBuilder::QUIRKS ) {
+				$builder->closePInButtonScope( $sourceStart );
+			}
+			$builder->framesetOK = false;
+			$mode = Dispatcher::IN_TABLE;
+			break;
+
+		case 'area':
+		case 'br':
+		case 'embed':
+		case 'img':
+		case 'keygen':
+		case 'wbr':
+			$builder->reconstructAFE( $sourceStart );
+			$dispatcher->ack = true;
+			$void = true;
+			$builder->framesetOK = false;
+			break;
+
+		case 'input':
+			$builder->reconstructAFE( $sourceStart );
+			$dispatcher->ack = true;
+			$void = true;
+			if ( !isset( $attrs['type'] ) || strcasecmp( $attrs['type'], 'hidden' ) !== 0 ) {
+				$builder->framesetOK = false;
+			}
+			break;
+
+		case 'menuitem':
+		case 'param':
+		case 'source':
+		case 'track':
+			$dispatcher->ack = true;
+			$void = true;
+			break;
+
+		case 'hr':
+			$builder->closePInButtonScope( $sourceStart );
+			$dispatcher->ack = true;
+			$void = true;
+			$builder->framesetOK = false;
+			break;
+
+		case 'image':
+			$builder->error( 'invalid "image" tag, assuming "img"', $sourceStart );
+			$this->startTag( 'img', $attrs, $selfClose, $sourceStart, $sourceLength );
+			return;
+
+		case 'textarea':
+			$tokenizerState = Tokenizer::STATE_RCDATA;
+			$textMode = Dispatcher::IN_TEXTAREA;
+			$builder->framesetOK = false;
+			break;
+
+		case 'xmp':
+			$builder->closePInButtonScope( $sourceStart );
+			$builder->reconstructAFE( $sourceStart );
+			$builder->framesetOK = false;
+			$tokenizerState = Tokenizer::STATE_RAWTEXT;
+			$textMode = Dispatcher::TEXT;
+			break;
+
+		case 'iframe':
+			$builder->framesetOK = false;
+			$tokenizerState = Tokenizer::STATE_RAWTEXT;
+			$textMode = Dispatcher::TEXT;
+			break;
+
+		case 'noscript':
+			if ( !$builder->scriptingFlag ) {
+				$builder->reconstructAFE( $sourceStart );
+				break;
+			}
+			// fall through
+		case 'noembed':
+			$tokenizerState = Tokenizer::STATE_RAWTEXT;
+			$textMode = Dispatcher::TEXT;
+			break;
+
+		case 'select':
+			$builder->reconstructAFE( $sourceStart );
+			$builder->framesetOK = false;
+			if ( $dispatcher->isInTableMode() ) {
+				$mode = Dispatcher::IN_SELECT_IN_TABLE;
+			} else {
+				$mode = Dispatcher::IN_SELECT;
+			}
+			break;
+
+		case 'optgroup':
+		case 'option':
+			if ( $stack->current->htmlName === 'option' ) {
+				$builder->pop( $sourceStart, 0 );
+			}
+			$builder->reconstructAFE( $sourceStart );
+			break;
+
+		case 'rb':
+		case 'rtc':
+			if ( $stack->isInScope( 'ruby' ) ) {
+				$builder->generateImpliedEndTags( false, $sourceStart );
+				if ( $stack->current->htmlName !== 'ruby'
+				) {
+					$builder->error( "<$name> is not a child of <ruby>", $sourceStart );
+				}
+			}
+			break;
+
+		case 'rp':
+		case 'rt':
+			if ( $stack->isInScope( 'ruby' ) ) {
+				$builder->generateImpliedEndTags( 'rtc', $sourceStart );
+				if ( !in_array( $stack->current->htmlName, [ 'ruby', 'rtc' ] ) ) {
+					$builder->error( "<$name> is not a child of <ruby> or <rtc>", $sourceStart );
+				}
+			}
+			break;
+
+		case 'math':
+			$builder->reconstructAFE( $sourceStart );
+			$attrs = new ForeignAttributes( $attrs, 'math' );
+			$dispatcher->ack = true;
+			$builder->insertForeign( HTMLData::NS_MATHML, 'math', $attrs, $selfClose,
+				$sourceStart, $sourceLength );
+			return;
+
+		case 'svg':
+			$builder->reconstructAFE( $sourceStart );
+			$attrs = new ForeignAttributes( $attrs, 'svg' );
+			$dispatcher->ack = true;
+			$builder->insertForeign( HTMLData::NS_SVG, 'svg', $attrs, $selfClose,
+				$sourceStart, $sourceLength );
+			return;
+
+		case 'caption':
+		case 'col':
+		case 'colgroup':
+		case 'frame':
+		case 'head':
+		case 'tbody':
+		case 'td':
+		case 'tfoot':
+		case 'th':
+		case 'thead':
+		case 'tr':
+			$builder->error( "$name is invalid in body mode", $sourceStart );
+			return;
+
+		default:
+			$builder->reconstructAFE( $sourceStart );
+		}
+
+		// Generic element insertion, for all cases that didn't return above
+		$element = $builder->insertElement( $name, $attrs, $void,
+			$sourceStart, $sourceLength );
+		if ( $isNewAFE ) {
+			$builder->afe->push( $element );
+		}
+
+		if ( $tokenizerState !== null ) {
+			$builder->tokenizer->switchState( $tokenizerState, $name );
+		}
+		if ( $mode !== null ) {
+			$dispatcher->switchMode( $mode );
+		} elseif ( $textMode !== null ) {
+			$dispatcher->switchAndSave( $textMode );
+		}
+	}
+
+	public function endTag( $name, $sourceStart, $sourceLength ) {
+		$builder = $this->builder;
+		$stack = $builder->stack;
+		$dispatcher = $this->dispatcher;
+
+		switch ( $name ) {
+		case 'template':
+			$dispatcher->inHead->endTag( $name, $sourceStart, $sourceLength );
+			break;
+
+		case 'body':
+			if ( !$stack->isInScope( 'body' ) ) {
+				$builder->error( '</body> has no matching start tag in scope', $sourceStart );
+				break;
+			}
+			$builder->checkUnclosed( self::$implicitClose, $sourceStart );
+			$dispatcher->switchMode( Dispatcher::AFTER_BODY );
+			break;
+
+		case 'html':
+			if ( !$stack->isInScope( 'body' ) ) {
+				$builder->error( '</html> found in body mode but the body is not in scope',
+					$sourceStart );
+				break;
+			}
+			$builder->checkUnclosed( self::$implicitClose, $sourceStart );
+			$dispatcher->switchMode( Dispatcher::AFTER_BODY )
+				->endTag( $name, $sourceStart, $sourceLength );
+			break;
+
+		case 'address':
+		case 'article':
+		case 'aside':
+		case 'blockquote':
+		case 'button':
+		case 'center':
+		case 'details':
+		case 'dir':
+		case 'div':
+		case 'dl':
+		case 'fieldset':
+		case 'figcaption':
+		case 'figure':
+		case 'footer':
+		case 'header':
+		case 'listing':
+		case 'main':
+		case 'menu':
+		case 'nav':
+		case 'ol':
+		case 'pre':
+		case 'section':
+		case 'summary':
+		case 'ul':
+			if ( !$stack->isInScope( $name ) ) {
+				$builder->error( "unmatched </$name>, ignoring", $sourceStart );
+				break;
+			}
+			$builder->generateImpliedEndTagsAndPop( $name, $sourceStart, $sourceLength );
+			break;
+
+		case 'form':
+			if ( !$stack->hasTemplate() ) {
+				$node = $builder->formElement;
+				$builder->formElement = null;
+				if ( $node === null ) {
+					$builder->error( "found </form> when there is no open form element",
+						$sourceStart );
+					break;
+				}
+				if ( !$stack->isElementInScope( $node ) ) {
+					$builder->error( "found </form> when there is no form in scope",
+						$sourceStart );
+					break;
+				}
+				$builder->generateImpliedEndTags( false, $sourceStart );
+				if ( $stack->current === $node ) {
+					$builder->pop( $sourceStart, $sourceLength );
+				} else {
+					$builder->error( "found </form> when there are tags open " .
+						"which cannot be closed automatically", $sourceStart );
+					$stack->remove( $node );
+					// FIXME cannot garbage collect in Serializer since children
+					// of the form are still in the stack
+					// $builder->handler->endTag( $node, $sourceStart, $sourceLength );
+				}
+			} else {
+				if ( !$stack->isInScope( 'form' ) ) {
+					$builder->error( "found </form> when there is no form in scope",
+						$sourceStart );
+					break;
+				}
+				$builder->generateImpliedEndTagsAndPop( 'form', $sourceStart, $sourceLength );
+			}
+			break;
+
+		case 'p':
+			if ( !$stack->isInButtonScope( 'p' ) ) {
+				$builder->error( "found </p> when there is no p in scope",
+					$sourceStart );
+				$builder->insertElement( 'p', new PlainAttributes, false, $sourceStart, 0 );
+				$builder->pop( $sourceStart, $sourceLength );
+				break;
+			}
+			$builder->generateImpliedEndTagsAndPop( 'p', $sourceStart, $sourceLength );
+			break;
+
+		case 'li':
+			if ( !$stack->isInListScope( 'li' ) ) {
+				$builder->error( "found </li> when there is no li in scope, ignoring",
+					$sourceStart );
+				break;
+			}
+			$builder->generateImpliedEndTagsAndPop( 'li', $sourceStart, $sourceLength );
+			break;
+
+		case 'dd':
+		case 'dt':
+			if ( !$stack->isInScope( $name ) ) {
+				$builder->error( "found </$name> when there is no $name in scope, ignoring",
+					$sourceStart );
+				break;
+			}
+			$builder->generateImpliedEndTagsAndPop( $name, $sourceStart, $sourceLength );
+			break;
+
+		case 'h1':
+		case 'h2':
+		case 'h3':
+		case 'h4':
+		case 'h5':
+		case 'h6':
+			if ( !$stack->isOneOfSetInScope( self::$headingNames ) ) {
+				$builder->error( "found </$name> when there is no heading tag in scope, ignoring",
+					$sourceStart );
+				break;
+			}
+			$builder->generateImpliedEndTags( false, $sourceStart );
+			if ( $stack->current->htmlName !== $name ) {
+				$builder->error( "end tag </$name> assumed to close non-matching heading tag",
+					$sourceStart );
+			}
+			$builder->popAllUpToNames( self::$headingNames, $sourceStart, $sourceLength );
+			break;
+
+		case 'a':
+		case 'b':
+		case 'big':
+		case 'code':
+		case 'em':
+		case 'font':
+		case 'i':
+		case 'nobr':
+		case 's':
+		case 'small':
+		case 'strike':
+		case 'strong':
+		case 'tt':
+		case 'u':
+			$builder->adoptionAgency( $name, $sourceStart, $sourceLength );
+			break;
+
+		case 'applet':
+		case 'marquee':
+		case 'object':
+			if ( !$stack->isInScope( $name ) ) {
+				$builder->error( "found </$name> when there is no $name in scope",
+					$sourceStart );
+				break;
+			}
+			$builder->generateImpliedEndTags( false, $sourceStart );
+			if ( $stack->current->htmlName !== $name ) {
+				$builder->error( "found </$name> when there are tags open which " .
+					"cannot be implicitly closed, closing them anyway", $sourceStart );
+			}
+			$builder->popAllUpToName( $name, $sourceStart, $sourceLength );
+			$builder->afe->clearToMarker();
+			break;
+
+		case 'br':
+			$builder->error( 'end tag </br> is invalid, assuming start tag', $sourceStart );
+			$this->startTag( $name, new PlainAttributes, false, $sourceStart, $sourceLength );
+			break;
+
+		default:
+			$builder->anyOtherEndTag( $name, $sourceStart, $sourceLength );
+			break;
+		}
+	}
+
+	public function endDocument( $pos ) {
+		$allowed = [
+			'dd' => true,
+			'dt' => true,
+			'li' => true,
+			'p' => true,
+			'tbody' => true,
+			'td' => true,
+			'tfoot' => true,
+			'th' => true,
+			'thead' => true,
+			'tr' => true,
+			'body' => true,
+			'html' => true,
+		];
+
+		$this->builder->checkUnclosed( $allowed, $pos );
+		if ( !$this->dispatcher->templateModeStack->isEmpty() ) {
+			$this->dispatcher->inTemplate->endDocument( $pos );
+		} else {
+			$this->builder->stopParsing( $pos );
+		}
+	}
+}