--- /dev/null
+<?php
+/**
+ * A preprocessor optimised for HipHop, using HipHop-specific syntax.
+ * vim: ft=php
+ *
+ * @file
+ * @ingroup Parser
+ */
+
+/**
+ * @ingroup Parser
+ */
+class Preprocessor_HipHop implements Preprocessor {
+ /**
+ * @var Parser
+ */
+ var $parser;
+
+ const CACHE_VERSION = 1;
+
+ function __construct( $parser ) {
+ $this->parser = $parser;
+ }
+
+ /**
+ * @return PPFrame_HipHop
+ */
+ function newFrame() {
+ return new PPFrame_HipHop( $this );
+ }
+
+ /**
+ * @param $args
+ * @return PPCustomFrame_HipHop
+ */
+ function newCustomFrame( array $args ) {
+ return new PPCustomFrame_HipHop( $this, $args );
+ }
+
+ /**
+ * @param $values array
+ * @return PPNode_HipHop_Array
+ */
+ function newPartNodeArray( $values ) {
+ $list = array();
+
+ foreach ( $values as $k => $val ) {
+ $partNode = new PPNode_HipHop_Tree( 'part' );
+ $nameNode = new PPNode_HipHop_Tree( 'name' );
+
+ if ( is_int( $k ) ) {
+ $nameNode->addChild( new PPNode_HipHop_Attr( 'index', $k ) );
+ $partNode->addChild( $nameNode );
+ } else {
+ $nameNode->addChild( new PPNode_HipHop_Text( $k ) );
+ $partNode->addChild( $nameNode );
+ $partNode->addChild( new PPNode_HipHop_Text( '=' ) );
+ }
+
+ $valueNode = new PPNode_HipHop_Tree( 'value' );
+ $valueNode->addChild( new PPNode_HipHop_Text( $val ) );
+ $partNode->addChild( $valueNode );
+
+ $list[] = $partNode;
+ }
+
+ $node = new PPNode_HipHop_Array( $list );
+ return $node;
+ }
+
+ /**
+ * Preprocess some wikitext and return the document tree.
+ * This is the ghost of Parser::replace_variables().
+ *
+ * @param $text String: the text to parse
+ * @param $flags Integer: bitwise combination of:
+ * Parser::PTD_FOR_INCLUSION Handle <noinclude>/<includeonly> as if the text is being
+ * included. Default is to assume a direct page view.
+ *
+ * The generated DOM tree must depend only on the input text and the flags.
+ * The DOM tree must be the same in OT_HTML and OT_WIKI mode, to avoid a regression of bug 4899.
+ *
+ * Any flag added to the $flags parameter here, or any other parameter liable to cause a
+ * change in the DOM tree for a given text, must be passed through the section identifier
+ * in the section edit link and thus back to extractSections().
+ *
+ * The output of this function is currently only cached in process memory, but a persistent
+ * cache may be implemented at a later date which takes further advantage of these strict
+ * dependency requirements.
+ *
+ * @return PPNode_HipHop_Tree
+ */
+ function preprocessToObj( string $text, int $flags = 0 ) {
+ wfProfileIn( __METHOD__ );
+
+ // Check cache.
+ global $wgMemc, $wgPreprocessorCacheThreshold;
+
+ $cacheable = ($wgPreprocessorCacheThreshold !== false && strlen( $text ) > $wgPreprocessorCacheThreshold);
+ if ( $cacheable ) {
+ wfProfileIn( __METHOD__.'-cacheable' );
+
+ $cacheKey = strval( wfMemcKey( 'preprocess-hash', md5($text), $flags ) );
+ $cacheValue = strval( $wgMemc->get( $cacheKey ) );
+ if ( $cacheValue !== '' ) {
+ $version = substr( $cacheValue, 0, 8 );
+ if ( intval( $version ) == self::CACHE_VERSION ) {
+ $hash = unserialize( substr( $cacheValue, 8 ) );
+ // From the cache
+ wfDebugLog( "Preprocessor",
+ "Loaded preprocessor hash from memcached (key $cacheKey)" );
+ wfProfileOut( __METHOD__.'-cacheable' );
+ wfProfileOut( __METHOD__ );
+ return $hash;
+ }
+ }
+ wfProfileIn( __METHOD__.'-cache-miss' );
+ }
+
+ $rules = array(
+ '{' => array(
+ 'end' => '}',
+ 'names' => array(
+ 2 => 'template',
+ 3 => 'tplarg',
+ ),
+ 'min' => 2,
+ 'max' => 3,
+ ),
+ '[' => array(
+ 'end' => ']',
+ 'names' => array( 2 => 'LITERAL' ),
+ 'min' => 2,
+ 'max' => 2,
+ )
+ );
+
+ $forInclusion = (bool)( $flags & Parser::PTD_FOR_INCLUSION );
+
+ $xmlishElements = (array)$this->parser->getStripList();
+ $enableOnlyinclude = false;
+ if ( $forInclusion ) {
+ $ignoredTags = array( 'includeonly', '/includeonly' );
+ $ignoredElements = array( 'noinclude' );
+ $xmlishElements[] = 'noinclude';
+ if ( strpos( $text, '<onlyinclude>' ) !== false && strpos( $text, '</onlyinclude>' ) !== false ) {
+ $enableOnlyinclude = true;
+ }
+ } else if ( $this->parser->ot['wiki'] ) {
+ $ignoredTags = array( 'noinclude', '/noinclude', 'onlyinclude', '/onlyinclude', 'includeonly', '/includeonly' );
+ $ignoredElements = array();
+ } else {
+ $ignoredTags = array( 'noinclude', '/noinclude', 'onlyinclude', '/onlyinclude' );
+ $ignoredElements = array( 'includeonly' );
+ $xmlishElements[] = 'includeonly';
+ }
+ $xmlishRegex = implode( '|', array_merge( $xmlishElements, $ignoredTags ) );
+
+ // Use "A" modifier (anchored) instead of "^", because ^ doesn't work with an offset
+ $elementsRegex = "~($xmlishRegex)(?:\s|\/>|>)|(!--)~iA";
+
+ $stack = new PPDStack_HipHop;
+
+ $searchBase = "[{<\n";
+ $revText = strrev( $text ); // For fast reverse searches
+
+ $i = 0; # Input pointer, starts out pointing to a pseudo-newline before the start
+ $accum = $stack->getAccum(); # Current accumulator
+ $headingIndex = 1;
+ $stackFlags = array(
+ 'findPipe' => false, # True to take notice of pipe characters
+ 'findEquals' => false, # True to find equals signs in arguments
+ 'inHeading' => false, # True if $i is inside a possible heading
+ );
+ $noMoreGT = false; # True if there are no more greater-than (>) signs right of $i
+ $findOnlyinclude = $enableOnlyinclude; # True to ignore all input up to the next <onlyinclude>
+ $fakeLineStart = true; # Do a line-start run without outputting an LF character
+
+ while ( true ) {
+ //$this->memCheck();
+
+ if ( $findOnlyinclude ) {
+ // Ignore all input up to the next <onlyinclude>
+ $variantStartPos = strpos( $text, '<onlyinclude>', $i );
+ if ( $variantStartPos === false ) {
+ // Ignored section runs to the end
+ $accum->addNodeWithText( 'ignore', strval( substr( $text, $i ) ) );
+ break;
+ }
+ $startPos1 = intval( $variantStartPos );
+ $tagEndPos = $startPos1 + strlen( '<onlyinclude>' ); // past-the-end
+ $accum->addNodeWithText( 'ignore', strval( substr( $text, $i, $tagEndPos - $i ) ) );
+ $i = $tagEndPos;
+ $findOnlyinclude = false;
+ }
+
+ if ( $fakeLineStart ) {
+ $found = 'line-start';
+ $curChar = '';
+ } else {
+ # Find next opening brace, closing brace or pipe
+ $search = $searchBase;
+ if ( $stack->top === false ) {
+ $currentClosing = '';
+ } else {
+ $currentClosing = strval( $stack->getTop()->close );
+ $search .= $currentClosing;
+ }
+ if ( $stackFlags['findPipe'] ) {
+ $search .= '|';
+ }
+ if ( $stackFlags['findEquals'] ) {
+ // First equals will be for the template
+ $search .= '=';
+ }
+ $rule = null;
+ # Output literal section, advance input counter
+ $literalLength = intval( strcspn( $text, $search, $i ) );
+ if ( $literalLength > 0 ) {
+ $accum->addLiteral( strval( substr( $text, $i, $literalLength ) ) );
+ $i += $literalLength;
+ }
+ if ( $i >= strlen( $text ) ) {
+ if ( $currentClosing === "\n" ) {
+ // Do a past-the-end run to finish off the heading
+ $curChar = '';
+ $found = 'line-end';
+ } else {
+ # All done
+ break;
+ }
+ } else {
+ $curChar = $text[$i];
+ if ( $curChar === '|' ) {
+ $found = 'pipe';
+ } elseif ( $curChar === '=' ) {
+ $found = 'equals';
+ } elseif ( $curChar === '<' ) {
+ $found = 'angle';
+ } elseif ( $curChar === "\n" ) {
+ if ( $stackFlags['inHeading'] ) {
+ $found = 'line-end';
+ } else {
+ $found = 'line-start';
+ }
+ } elseif ( $curChar === $currentClosing ) {
+ $found = 'close';
+ } elseif ( isset( $rules[$curChar] ) ) {
+ $found = 'open';
+ $rule = $rules[$curChar];
+ } else {
+ # Some versions of PHP have a strcspn which stops on null characters
+ # Ignore and continue
+ ++$i;
+ continue;
+ }
+ }
+ }
+
+ if ( $found === 'angle' ) {
+ $matches = false;
+ // Handle </onlyinclude>
+ if ( $enableOnlyinclude
+ && substr( $text, $i, strlen( '</onlyinclude>' ) ) === '</onlyinclude>' )
+ {
+ $findOnlyinclude = true;
+ continue;
+ }
+
+ // Determine element name
+ if ( !preg_match( $elementsRegex, $text, $matches, 0, $i + 1 ) ) {
+ // Element name missing or not listed
+ $accum->addLiteral( '<' );
+ ++$i;
+ continue;
+ }
+ // Handle comments
+ if ( isset( $matches[2] ) && $matches[2] === '!--' ) {
+ // To avoid leaving blank lines, when a comment is both preceded
+ // and followed by a newline (ignoring spaces), trim leading and
+ // trailing spaces and one of the newlines.
+
+ // Find the end
+ $variantEndPos = strpos( $text, '-->', $i + 4 );
+ if ( $variantEndPos === false ) {
+ // Unclosed comment in input, runs to end
+ $inner = strval( substr( $text, $i ) );
+ $accum->addNodeWithText( 'comment', $inner );
+ $i = strlen( $text );
+ } else {
+ $endPos = intval( $variantEndPos );
+ // Search backwards for leading whitespace
+ if ( $i ) {
+ $wsStart = $i - intval( strspn( $revText, ' ', strlen( $text ) - $i ) );
+ } else {
+ $wsStart = 0;
+ }
+ // Search forwards for trailing whitespace
+ // $wsEnd will be the position of the last space (or the '>' if there's none)
+ $wsEnd = $endPos + 2 + intval( strspn( $text, ' ', $endPos + 3 ) );
+ // Eat the line if possible
+ // TODO: This could theoretically be done if $wsStart == 0, i.e. for comments at
+ // the overall start. That's not how Sanitizer::removeHTMLcomments() did it, but
+ // it's a possible beneficial b/c break.
+ if ( $wsStart > 0 && substr( $text, $wsStart - 1, 1 ) === "\n"
+ && substr( $text, $wsEnd + 1, 1 ) === "\n" )
+ {
+ $startPos2 = $wsStart;
+ $endPos = $wsEnd + 1;
+ // Remove leading whitespace from the end of the accumulator
+ // Sanity check first though
+ $wsLength = $i - $wsStart;
+ if ( $wsLength > 0
+ && $accum->lastNode instanceof PPNode_HipHop_Text
+ && substr( $accum->lastNode->value, -$wsLength ) === str_repeat( ' ', $wsLength ) )
+ {
+ $accum->lastNode->value = strval( substr( $accum->lastNode->value, 0, -$wsLength ) );
+ }
+ // Do a line-start run next time to look for headings after the comment
+ $fakeLineStart = true;
+ } else {
+ // No line to eat, just take the comment itself
+ $startPos2 = $i;
+ $endPos += 2;
+ }
+
+ if ( $stack->top ) {
+ $part = $stack->getTop()->getCurrentPart();
+ if ( ! (isset( $part->commentEnd ) && $part->commentEnd == $wsStart - 1 )) {
+ $part->visualEnd = $wsStart;
+ }
+ // Else comments abutting, no change in visual end
+ $part->commentEnd = $endPos;
+ }
+ $i = $endPos + 1;
+ $inner = strval( substr( $text, $startPos2, $endPos - $startPos2 + 1 ) );
+ $accum->addNodeWithText( 'comment', $inner );
+ }
+ continue;
+ }
+ $name = strval( $matches[1] );
+ $lowerName = strtolower( $name );
+ $attrStart = $i + strlen( $name ) + 1;
+
+ // Find end of tag
+ $variantTagEndPos = $noMoreGT ? false : strpos( $text, '>', $attrStart );
+ if ( $variantTagEndPos === false ) {
+ // Infinite backtrack
+ // Disable tag search to prevent worst-case O(N^2) performance
+ $noMoreGT = true;
+ $accum->addLiteral( '<' );
+ ++$i;
+ continue;
+ }
+ $tagEndPos = intval( $variantTagEndPos );
+
+ // Handle ignored tags
+ if ( in_array( $lowerName, $ignoredTags ) ) {
+ $accum->addNodeWithText( 'ignore', strval( substr( $text, $i, $tagEndPos - $i + 1 ) ) );
+ $i = $tagEndPos + 1;
+ continue;
+ }
+
+ $tagStartPos = $i;
+ $inner = $close = '';
+ if ( $text[$tagEndPos-1] === '/' ) {
+ // Short end tag
+ $attrEnd = $tagEndPos - 1;
+ $shortEnd = true;
+ $inner = '';
+ $i = $tagEndPos + 1;
+ $haveClose = false;
+ } else {
+ $attrEnd = $tagEndPos;
+ $shortEnd = false;
+ // Find closing tag
+ if ( preg_match( "/<\/" . preg_quote( $name, '/' ) . "\s*>/i",
+ $text, $matches, PREG_OFFSET_CAPTURE, $tagEndPos + 1 ) )
+ {
+ $inner = strval( substr( $text, $tagEndPos + 1, $matches[0][1] - $tagEndPos - 1 ) );
+ $i = intval( $matches[0][1] ) + strlen( $matches[0][0] );
+ $close = strval( $matches[0][0] );
+ $haveClose = true;
+ } else {
+ // No end tag -- let it run out to the end of the text.
+ $inner = strval( substr( $text, $tagEndPos + 1 ) );
+ $i = strlen( $text );
+ $haveClose = false;
+ }
+ }
+ // <includeonly> and <noinclude> just become <ignore> tags
+ if ( in_array( $lowerName, $ignoredElements ) ) {
+ $accum->addNodeWithText( 'ignore', strval( substr( $text, $tagStartPos, $i - $tagStartPos ) ) );
+ continue;
+ }
+
+ if ( $attrEnd <= $attrStart ) {
+ $attr = '';
+ } else {
+ // Note that the attr element contains the whitespace between name and attribute,
+ // this is necessary for precise reconstruction during pre-save transform.
+ $attr = strval( substr( $text, $attrStart, $attrEnd - $attrStart ) );
+ }
+
+ $extNode = new PPNode_HipHop_Tree( 'ext' );
+ $extNode->addChild( PPNode_HipHop_Tree::newWithText( 'name', $name ) );
+ $extNode->addChild( PPNode_HipHop_Tree::newWithText( 'attr', $attr ) );
+ if ( !$shortEnd ) {
+ $extNode->addChild( PPNode_HipHop_Tree::newWithText( 'inner', $inner ) );
+ }
+ if ( $haveClose ) {
+ $extNode->addChild( PPNode_HipHop_Tree::newWithText( 'close', $close ) );
+ }
+ $accum->addNode( $extNode );
+ }
+
+ elseif ( $found === 'line-start' ) {
+ // Is this the start of a heading?
+ // Line break belongs before the heading element in any case
+ if ( $fakeLineStart ) {
+ $fakeLineStart = false;
+ } else {
+ $accum->addLiteral( $curChar );
+ $i++;
+ }
+
+ $count = intval( strspn( $text, '=', $i, 6 ) );
+ if ( $count == 1 && $stackFlags['findEquals'] ) {
+ // DWIM: This looks kind of like a name/value separator
+ // Let's let the equals handler have it and break the potential heading
+ // This is heuristic, but AFAICT the methods for completely correct disambiguation are very complex.
+ } elseif ( $count > 0 ) {
+ $partData = array(
+ 'open' => "\n",
+ 'close' => "\n",
+ 'parts' => array( new PPDPart_HipHop( str_repeat( '=', $count ) ) ),
+ 'startPos' => $i,
+ 'count' => $count );
+ $stack->push( $partData );
+ $accum = $stack->getAccum();
+ $stackFlags = $stack->getFlags();
+ $i += $count;
+ }
+ } elseif ( $found === 'line-end' ) {
+ $piece = $stack->getTop();
+ // A heading must be open, otherwise \n wouldn't have been in the search list
+ assert( $piece->open === "\n" );
+ $part = $piece->getCurrentPart();
+ // Search back through the input to see if it has a proper close
+ // Do this using the reversed string since the other solutions (end anchor, etc.) are inefficient
+ $wsLength = intval( strspn( $revText, " \t", strlen( $text ) - $i ) );
+ $searchStart = $i - $wsLength;
+ if ( isset( $part->commentEnd ) && $searchStart - 1 == $part->commentEnd ) {
+ // Comment found at line end
+ // Search for equals signs before the comment
+ $searchStart = intval( $part->visualEnd );
+ $searchStart -= intval( strspn( $revText, " \t", strlen( $text ) - $searchStart ) );
+ }
+ $count = intval( $piece->count );
+ $equalsLength = intval( strspn( $revText, '=', strlen( $text ) - $searchStart ) );
+ $isTreeNode = false;
+ $resultAccum = $accum;
+ if ( $equalsLength > 0 ) {
+ if ( $searchStart - $equalsLength == $piece->startPos ) {
+ // This is just a single string of equals signs on its own line
+ // Replicate the doHeadings behaviour /={count}(.+)={count}/
+ // First find out how many equals signs there really are (don't stop at 6)
+ $count = $equalsLength;
+ if ( $count < 3 ) {
+ $count = 0;
+ } else {
+ $count = intval( ( $count - 1 ) / 2 );
+ if ( $count > 6 ) {
+ $count = 6;
+ }
+ }
+ } else {
+ if ( $count > $equalsLength ) {
+ $count = $equalsLength;
+ }
+ }
+ if ( $count > 0 ) {
+ // Normal match, output <h>
+ $tree = new PPNode_HipHop_Tree( 'possible-h' );
+ $tree->addChild( new PPNode_HipHop_Attr( 'level', $count ) );
+ $tree->addChild( new PPNode_HipHop_Attr( 'i', $headingIndex++ ) );
+ $tree->lastChild->nextSibling = $accum->firstNode;
+ $tree->lastChild = $accum->lastNode;
+ $isTreeNode = true;
+ } else {
+ // Single equals sign on its own line, count=0
+ // Output $resultAccum
+ }
+ } else {
+ // No match, no <h>, just pass down the inner text
+ // Output $resultAccum
+ }
+ // Unwind the stack
+ $stack->pop();
+ $accum = $stack->getAccum();
+ $stackFlags = $stack->getFlags();
+
+ // Append the result to the enclosing accumulator
+ if ( $isTreeNode ) {
+ $accum->addNode( $tree );
+ } else {
+ $accum->addAccum( $resultAccum );
+ }
+ // Note that we do NOT increment the input pointer.
+ // This is because the closing linebreak could be the opening linebreak of
+ // another heading. Infinite loops are avoided because the next iteration MUST
+ // hit the heading open case above, which unconditionally increments the
+ // input pointer.
+ } elseif ( $found === 'open' ) {
+ # count opening brace characters
+ $count = intval( strspn( $text, $curChar, $i ) );
+
+ # we need to add to stack only if opening brace count is enough for one of the rules
+ if ( $count >= $rule['min'] ) {
+ # Add it to the stack
+ $partData = array(
+ 'open' => $curChar,
+ 'close' => $rule['end'],
+ 'count' => $count,
+ 'lineStart' => ($i == 0 || $text[$i-1] === "\n"),
+ );
+
+ $stack->push( $partData );
+ $accum = $stack->getAccum();
+ $stackFlags = $stack->getFlags();
+ } else {
+ # Add literal brace(s)
+ $accum->addLiteral( str_repeat( $curChar, $count ) );
+ }
+ $i += $count;
+ } elseif ( $found === 'close' ) {
+ $piece = $stack->getTop();
+ # lets check if there are enough characters for closing brace
+ $maxCount = intval( $piece->count );
+ $count = intval( strspn( $text, $curChar, $i, $maxCount ) );
+
+ # check for maximum matching characters (if there are 5 closing
+ # characters, we will probably need only 3 - depending on the rules)
+ $rule = $rules[$piece->open];
+ if ( $count > $rule['max'] ) {
+ # The specified maximum exists in the callback array, unless the caller
+ # has made an error
+ $matchingCount = intval( $rule['max'] );
+ } else {
+ # Count is less than the maximum
+ # Skip any gaps in the callback array to find the true largest match
+ # Need to use array_key_exists not isset because the callback can be null
+ $matchingCount = $count;
+ while ( $matchingCount > 0 && !array_key_exists( $matchingCount, $rule['names'] ) ) {
+ --$matchingCount;
+ }
+ }
+
+ if ($matchingCount <= 0) {
+ # No matching element found in callback array
+ # Output a literal closing brace and continue
+ $accum->addLiteral( str_repeat( $curChar, $count ) );
+ $i += $count;
+ continue;
+ }
+ $name = strval( $rule['names'][$matchingCount] );
+ $isTreeNode = false;
+ if ( $name === 'LITERAL' ) {
+ // No element, just literal text
+ $resultAccum = $piece->breakSyntax( $matchingCount );
+ $resultAccum->addLiteral( str_repeat( $rule['end'], $matchingCount ) );
+ } else {
+ # Create XML element
+ # Note: $parts is already XML, does not need to be encoded further
+ $isTreeNode = true;
+ $parts = $piece->parts;
+ $titleAccum = PPDAccum_HipHop::cast( $parts[0]->out );
+ unset( $parts[0] );
+
+ $tree = new PPNode_HipHop_Tree( $name );
+
+ # The invocation is at the start of the line if lineStart is set in
+ # the stack, and all opening brackets are used up.
+ if ( $maxCount == $matchingCount && !empty( $piece->lineStart ) ) {
+ $tree->addChild( new PPNode_HipHop_Attr( 'lineStart', 1 ) );
+ }
+ $titleNode = new PPNode_HipHop_Tree( 'title' );
+ $titleNode->firstChild = $titleAccum->firstNode;
+ $titleNode->lastChild = $titleAccum->lastNode;
+ $tree->addChild( $titleNode );
+ $argIndex = 1;
+ foreach ( $parts as $variantPart ) {
+ $part = PPDPart_HipHop::cast( $variantPart );
+ if ( isset( $part->eqpos ) ) {
+ // Find equals
+ $lastNode = false;
+ for ( $node = $part->out->firstNode; $node; $node = $node->nextSibling ) {
+ if ( $node === $part->eqpos ) {
+ break;
+ }
+ $lastNode = $node;
+ }
+ if ( !$node ) {
+ throw new MWException( __METHOD__. ': eqpos not found' );
+ }
+ if ( $node->name !== 'equals' ) {
+ throw new MWException( __METHOD__ .': eqpos is not equals' );
+ }
+ $equalsNode = $node;
+
+ // Construct name node
+ $nameNode = new PPNode_HipHop_Tree( 'name' );
+ if ( $lastNode !== false ) {
+ $lastNode->nextSibling = false;
+ $nameNode->firstChild = $part->out->firstNode;
+ $nameNode->lastChild = $lastNode;
+ }
+
+ // Construct value node
+ $valueNode = new PPNode_HipHop_Tree( 'value' );
+ if ( $equalsNode->nextSibling !== false ) {
+ $valueNode->firstChild = $equalsNode->nextSibling;
+ $valueNode->lastChild = $part->out->lastNode;
+ }
+ $partNode = new PPNode_HipHop_Tree( 'part' );
+ $partNode->addChild( $nameNode );
+ $partNode->addChild( $equalsNode->firstChild );
+ $partNode->addChild( $valueNode );
+ $tree->addChild( $partNode );
+ } else {
+ $partNode = new PPNode_HipHop_Tree( 'part' );
+ $nameNode = new PPNode_HipHop_Tree( 'name' );
+ $nameNode->addChild( new PPNode_HipHop_Attr( 'index', $argIndex++ ) );
+ $valueNode = new PPNode_HipHop_Tree( 'value' );
+ $valueNode->firstChild = $part->out->firstNode;
+ $valueNode->lastChild = $part->out->lastNode;
+ $partNode->addChild( $nameNode );
+ $partNode->addChild( $valueNode );
+ $tree->addChild( $partNode );
+ }
+ }
+ }
+
+ # Advance input pointer
+ $i += $matchingCount;
+
+ # Unwind the stack
+ $stack->pop();
+ $accum = $stack->getAccum();
+
+ # Re-add the old stack element if it still has unmatched opening characters remaining
+ if ($matchingCount < $piece->count) {
+ $piece->parts = array( new PPDPart_HipHop );
+ $piece->count -= $matchingCount;
+ # do we still qualify for any callback with remaining count?
+ $names = $rules[$piece->open]['names'];
+ $skippedBraces = 0;
+ $enclosingAccum = $accum;
+ while ( $piece->count ) {
+ if ( array_key_exists( $piece->count, $names ) ) {
+ $stack->push( $piece );
+ $accum = $stack->getAccum();
+ break;
+ }
+ --$piece->count;
+ $skippedBraces ++;
+ }
+ $enclosingAccum->addLiteral( str_repeat( $piece->open, $skippedBraces ) );
+ }
+
+ $stackFlags = $stack->getFlags();
+
+ # Add XML element to the enclosing accumulator
+ if ( $isTreeNode ) {
+ $accum->addNode( $tree );
+ } else {
+ $accum->addAccum( $resultAccum );
+ }
+ } elseif ( $found === 'pipe' ) {
+ $stackFlags['findEquals'] = true; // shortcut for getFlags()
+ $stack->addPart();
+ $accum = $stack->getAccum();
+ ++$i;
+ } elseif ( $found === 'equals' ) {
+ $stackFlags['findEquals'] = false; // shortcut for getFlags()
+ $accum->addNodeWithText( 'equals', '=' );
+ $stack->getCurrentPart()->eqpos = $accum->lastNode;
+ ++$i;
+ }
+ }
+
+ # Output any remaining unclosed brackets
+ foreach ( $stack->stack as $variantPiece ) {
+ $piece = PPDStackElement_HipHop::cast( $variantPiece );
+ $stack->rootAccum->addAccum( $piece->breakSyntax() );
+ }
+
+ # Enable top-level headings
+ for ( $node = $stack->rootAccum->firstNode; $node; $node = $node->nextSibling ) {
+ if ( isset( $node->name ) && $node->name === 'possible-h' ) {
+ $node->name = 'h';
+ }
+ }
+
+ $rootNode = new PPNode_HipHop_Tree( 'root' );
+ $rootNode->firstChild = $stack->rootAccum->firstNode;
+ $rootNode->lastChild = $stack->rootAccum->lastNode;
+
+ // Cache
+ if ($cacheable) {
+ $cacheValue = sprintf( "%08d", self::CACHE_VERSION ) . serialize( $rootNode );
+ $wgMemc->set( $cacheKey, $cacheValue, 86400 );
+ wfProfileOut( __METHOD__.'-cache-miss' );
+ wfProfileOut( __METHOD__.'-cacheable' );
+ wfDebugLog( "Preprocessor", "Saved preprocessor Hash to memcached (key $cacheKey)" );
+ }
+
+ wfProfileOut( __METHOD__ );
+ return $rootNode;
+ }
+}
+
+
+
+/**
+ * Stack class to help Preprocessor::preprocessToObj()
+ * @ingroup Parser
+ */
+class PPDStack_HipHop {
+ var $stack, $rootAccum;
+
+ /**
+ * @var PPDStack
+ */
+ var $top;
+ var $out;
+
+ static $false = false;
+
+ function __construct() {
+ $this->stack = array();
+ $this->top = false;
+ $this->rootAccum = new PPDAccum_HipHop;
+ $this->accum = $this->rootAccum;
+ }
+
+ /**
+ * @return int
+ */
+ function count() {
+ return count( $this->stack );
+ }
+
+ function getAccum() {
+ return PPDAccum_HipHop::cast( $this->accum );
+ }
+
+ function getCurrentPart() {
+ return $this->getTop()->getCurrentPart();
+ }
+
+ function getTop() {
+ return PPDStackElement_HipHop::cast( $this->top );
+ }
+
+ function push( $data ) {
+ if ( $data instanceof PPDStackElement_HipHop ) {
+ $this->stack[] = $data;
+ } else {
+ $this->stack[] = new PPDStackElement_HipHop( $data );
+ }
+ $this->top = $this->stack[ count( $this->stack ) - 1 ];
+ $this->accum = $this->top->getAccum();
+ }
+
+ function pop() {
+ if ( !count( $this->stack ) ) {
+ throw new MWException( __METHOD__.': no elements remaining' );
+ }
+ $temp = array_pop( $this->stack );
+
+ if ( count( $this->stack ) ) {
+ $this->top = $this->stack[ count( $this->stack ) - 1 ];
+ $this->accum = $this->top->getAccum();
+ } else {
+ $this->top = self::$false;
+ $this->accum = $this->rootAccum;
+ }
+ return $temp;
+ }
+
+ function addPart( $s = '' ) {
+ $this->top->addPart( $s );
+ $this->accum = $this->top->getAccum();
+ }
+
+ /**
+ * @return array
+ */
+ function getFlags() {
+ if ( !count( $this->stack ) ) {
+ return array(
+ 'findEquals' => false,
+ 'findPipe' => false,
+ 'inHeading' => false,
+ );
+ } else {
+ return $this->top->getFlags();
+ }
+ }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPDStackElement_HipHop {
+ var $open, // Opening character (\n for heading)
+ $close, // Matching closing character
+ $count, // Number of opening characters found (number of "=" for heading)
+ $parts, // Array of PPDPart objects describing pipe-separated parts.
+ $lineStart; // True if the open char appeared at the start of the input line. Not set for headings.
+
+ static function cast( PPDStackElement_HipHop $obj ) {
+ return $obj;
+ }
+
+ function __construct( $data = array() ) {
+ $this->parts = array( new PPDPart_HipHop );
+
+ foreach ( $data as $name => $value ) {
+ $this->$name = $value;
+ }
+ }
+
+ function getAccum() {
+ return PPDAccum_HipHop::cast( $this->parts[count($this->parts) - 1]->out );
+ }
+
+ function addPart( $s = '' ) {
+ $this->parts[] = new PPDPart_HipHop( $s );
+ }
+
+ function getCurrentPart() {
+ return PPDPart_HipHop::cast( $this->parts[count($this->parts) - 1] );
+ }
+
+ /**
+ * @return array
+ */
+ function getFlags() {
+ $partCount = count( $this->parts );
+ $findPipe = $this->open !== "\n" && $this->open !== '[';
+ return array(
+ 'findPipe' => $findPipe,
+ 'findEquals' => $findPipe && $partCount > 1 && !isset( $this->parts[$partCount - 1]->eqpos ),
+ 'inHeading' => $this->open === "\n",
+ );
+ }
+
+ /**
+ * Get the accumulator that would result if the close is not found.
+ *
+ * @return PPDAccum_HipHop
+ */
+ function breakSyntax( $openingCount = false ) {
+ if ( $this->open === "\n" ) {
+ $accum = PPDAccum_HipHop::cast( $this->parts[0]->out );
+ } else {
+ if ( $openingCount === false ) {
+ $openingCount = $this->count;
+ }
+ $accum = new PPDAccum_HipHop;
+ $accum->addLiteral( str_repeat( $this->open, $openingCount ) );
+ $first = true;
+ foreach ( $this->parts as $part ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $accum->addLiteral( '|' );
+ }
+ $accum->addAccum( $part->out );
+ }
+ }
+ return $accum;
+ }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPDPart_HipHop {
+ var $out; // Output accumulator object
+
+ // Optional member variables:
+ // eqpos Position of equals sign in output accumulator
+ // commentEnd Past-the-end input pointer for the last comment encountered
+ // visualEnd Past-the-end input pointer for the end of the accumulator minus comments
+
+ function __construct( $out = '' ) {
+ $this->out = new PPDAccum_HipHop;
+ if ( $out !== '' ) {
+ $this->out->addLiteral( $out );
+ }
+ }
+
+ static function cast( PPDPart_HipHop $obj ) {
+ return $obj;
+ }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPDAccum_HipHop {
+ var $firstNode, $lastNode;
+
+ function __construct() {
+ $this->firstNode = $this->lastNode = false;
+ }
+
+ static function cast( PPDAccum_HipHop $obj ) {
+ return $obj;
+ }
+
+ /**
+ * Append a string literal
+ */
+ function addLiteral( string $s ) {
+ if ( $this->lastNode === false ) {
+ $this->firstNode = $this->lastNode = new PPNode_HipHop_Text( $s );
+ } elseif ( $this->lastNode instanceof PPNode_HipHop_Text ) {
+ $this->lastNode->value .= $s;
+ } else {
+ $this->lastNode->nextSibling = new PPNode_HipHop_Text( $s );
+ $this->lastNode = $this->lastNode->nextSibling;
+ }
+ }
+
+ /**
+ * Append a PPNode
+ */
+ function addNode( PPNode $node ) {
+ if ( $this->lastNode === false ) {
+ $this->firstNode = $this->lastNode = $node;
+ } else {
+ $this->lastNode->nextSibling = $node;
+ $this->lastNode = $node;
+ }
+ }
+
+ /**
+ * Append a tree node with text contents
+ */
+ function addNodeWithText( string $name, string $value ) {
+ $node = PPNode_HipHop_Tree::newWithText( $name, $value );
+ $this->addNode( $node );
+ }
+
+ /**
+ * Append a PPDAccum_HipHop
+ * Takes over ownership of the nodes in the source argument. These nodes may
+ * subsequently be modified, especially nextSibling.
+ */
+ function addAccum( PPDAccum_HipHop $accum ) {
+ if ( $accum->lastNode === false ) {
+ // nothing to add
+ } elseif ( $this->lastNode === false ) {
+ $this->firstNode = $accum->firstNode;
+ $this->lastNode = $accum->lastNode;
+ } else {
+ $this->lastNode->nextSibling = $accum->firstNode;
+ $this->lastNode = $accum->lastNode;
+ }
+ }
+}
+
+/**
+ * An expansion frame, used as a context to expand the result of preprocessToObj()
+ * @ingroup Parser
+ */
+class PPFrame_HipHop implements PPFrame {
+
+ /**
+ * @var Parser
+ */
+ var $parser;
+
+ /**
+ * @var Preprocessor
+ */
+ var $preprocessor;
+
+ /**
+ * @var Title
+ */
+ var $title;
+ var $titleCache;
+
+ /**
+ * Hashtable listing templates which are disallowed for expansion in this frame,
+ * having been encountered previously in parent frames.
+ */
+ var $loopCheckHash;
+
+ /**
+ * Recursion depth of this frame, top = 0
+ * Note that this is NOT the same as expansion depth in expand()
+ */
+ var $depth;
+
+
+ /**
+ * Construct a new preprocessor frame.
+ * @param $preprocessor Preprocessor: the parent preprocessor
+ */
+ function __construct( $preprocessor ) {
+ $this->preprocessor = $preprocessor;
+ $this->parser = $preprocessor->parser;
+ $this->title = $this->parser->mTitle;
+ $this->titleCache = array( $this->title ? $this->title->getPrefixedDBkey() : false );
+ $this->loopCheckHash = array();
+ $this->depth = 0;
+ }
+
+ /**
+ * Create a new child frame
+ * $args is optionally a multi-root PPNode or array containing the template arguments
+ *
+ * @param $args PPNode_HipHop_Array|array
+ * @param $title Title|false
+ *
+ * @return PPTemplateFrame_HipHop
+ */
+ function newChild( $args = false, $title = false ) {
+ $namedArgs = array();
+ $numberedArgs = array();
+ if ( $title === false ) {
+ $title = $this->title;
+ }
+ if ( $args !== false ) {
+ if ( $args instanceof PPNode_HipHop_Array ) {
+ $args = $args->value;
+ } elseif ( !is_array( $args ) ) {
+ throw new MWException( __METHOD__ . ': $args must be array or PPNode_HipHop_Array' );
+ }
+ foreach ( $args as $arg ) {
+ $bits = $arg->splitArg();
+ if ( $bits['index'] !== '' ) {
+ // Numbered parameter
+ $numberedArgs[$bits['index']] = $bits['value'];
+ unset( $namedArgs[$bits['index']] );
+ } else {
+ // Named parameter
+ $name = trim( $this->expand( $bits['name'], PPFrame::STRIP_COMMENTS ) );
+ $namedArgs[$name] = $bits['value'];
+ unset( $numberedArgs[$name] );
+ }
+ }
+ }
+ return new PPTemplateFrame_HipHop( $this->preprocessor, $this, $numberedArgs, $namedArgs, $title );
+ }
+
+ /**
+ * @throws MWException
+ * @param $root
+ * @param $flags int
+ * @return string
+ */
+ function expand( $root, $flags = 0 ) {
+ static $expansionDepth = 0;
+ if ( is_string( $root ) ) {
+ return $root;
+ }
+
+ if ( ++$this->parser->mPPNodeCount > $this->parser->mOptions->getMaxPPNodeCount() ) {
+ return '<span class="error">Node-count limit exceeded</span>';
+ }
+ if ( $expansionDepth > $this->parser->mOptions->getMaxPPExpandDepth() ) {
+ return '<span class="error">Expansion depth limit exceeded</span>';
+ }
+ ++$expansionDepth;
+
+ $outStack = array( '', '' );
+ $iteratorStack = array( false, $root );
+ $indexStack = array( 0, 0 );
+
+ while ( count( $iteratorStack ) > 1 ) {
+ $level = count( $outStack ) - 1;
+ $iteratorNode =& $iteratorStack[ $level ];
+ $out =& $outStack[$level];
+ $index =& $indexStack[$level];
+
+ if ( is_array( $iteratorNode ) ) {
+ if ( $index >= count( $iteratorNode ) ) {
+ // All done with this iterator
+ $iteratorStack[$level] = false;
+ $contextNode = false;
+ } else {
+ $contextNode = $iteratorNode[$index];
+ $index++;
+ }
+ } elseif ( $iteratorNode instanceof PPNode_HipHop_Array ) {
+ if ( $index >= $iteratorNode->getLength() ) {
+ // All done with this iterator
+ $iteratorStack[$level] = false;
+ $contextNode = false;
+ } else {
+ $contextNode = $iteratorNode->item( $index );
+ $index++;
+ }
+ } else {
+ // Copy to $contextNode and then delete from iterator stack,
+ // because this is not an iterator but we do have to execute it once
+ $contextNode = $iteratorStack[$level];
+ $iteratorStack[$level] = false;
+ }
+
+ $newIterator = false;
+
+ if ( $contextNode === false ) {
+ // nothing to do
+ } elseif ( is_string( $contextNode ) ) {
+ $out .= $contextNode;
+ } elseif ( is_array( $contextNode ) || $contextNode instanceof PPNode_HipHop_Array ) {
+ $newIterator = $contextNode;
+ } elseif ( $contextNode instanceof PPNode_HipHop_Attr ) {
+ // No output
+ } elseif ( $contextNode instanceof PPNode_HipHop_Text ) {
+ $out .= $contextNode->value;
+ } elseif ( $contextNode instanceof PPNode_HipHop_Tree ) {
+ if ( $contextNode->name === 'template' ) {
+ # Double-brace expansion
+ $bits = $contextNode->splitTemplate();
+ if ( $flags & PPFrame::NO_TEMPLATES ) {
+ $newIterator = $this->virtualBracketedImplode( '{{', '|', '}}', $bits['title'], $bits['parts'] );
+ } else {
+ $ret = $this->parser->braceSubstitution( $bits, $this );
+ if ( isset( $ret['object'] ) ) {
+ $newIterator = $ret['object'];
+ } else {
+ $out .= $ret['text'];
+ }
+ }
+ } elseif ( $contextNode->name === 'tplarg' ) {
+ # Triple-brace expansion
+ $bits = $contextNode->splitTemplate();
+ if ( $flags & PPFrame::NO_ARGS ) {
+ $newIterator = $this->virtualBracketedImplode( '{{{', '|', '}}}', $bits['title'], $bits['parts'] );
+ } else {
+ $ret = $this->parser->argSubstitution( $bits, $this );
+ if ( isset( $ret['object'] ) ) {
+ $newIterator = $ret['object'];
+ } else {
+ $out .= $ret['text'];
+ }
+ }
+ } elseif ( $contextNode->name === 'comment' ) {
+ # HTML-style comment
+ # Remove it in HTML, pre+remove and STRIP_COMMENTS modes
+ if ( $this->parser->ot['html']
+ || ( $this->parser->ot['pre'] && $this->parser->mOptions->getRemoveComments() )
+ || ( $flags & PPFrame::STRIP_COMMENTS ) )
+ {
+ $out .= '';
+ }
+ # Add a strip marker in PST mode so that pstPass2() can run some old-fashioned regexes on the result
+ # Not in RECOVER_COMMENTS mode (extractSections) though
+ elseif ( $this->parser->ot['wiki'] && ! ( $flags & PPFrame::RECOVER_COMMENTS ) ) {
+ $out .= $this->parser->insertStripItem( $contextNode->firstChild->value );
+ }
+ # Recover the literal comment in RECOVER_COMMENTS and pre+no-remove
+ else {
+ $out .= $contextNode->firstChild->value;
+ }
+ } elseif ( $contextNode->name === 'ignore' ) {
+ # Output suppression used by <includeonly> etc.
+ # OT_WIKI will only respect <ignore> in substed templates.
+ # The other output types respect it unless NO_IGNORE is set.
+ # extractSections() sets NO_IGNORE and so never respects it.
+ if ( ( !isset( $this->parent ) && $this->parser->ot['wiki'] ) || ( $flags & PPFrame::NO_IGNORE ) ) {
+ $out .= $contextNode->firstChild->value;
+ } else {
+ //$out .= '';
+ }
+ } elseif ( $contextNode->name === 'ext' ) {
+ # Extension tag
+ $bits = $contextNode->splitExt() + array( 'attr' => null, 'inner' => null, 'close' => null );
+ $out .= $this->parser->extensionSubstitution( $bits, $this );
+ } elseif ( $contextNode->name === 'h' ) {
+ # Heading
+ if ( $this->parser->ot['html'] ) {
+ # Expand immediately and insert heading index marker
+ $s = '';
+ for ( $node = $contextNode->firstChild; $node; $node = $node->nextSibling ) {
+ $s .= $this->expand( $node, $flags );
+ }
+
+ $bits = $contextNode->splitHeading();
+ $titleText = $this->title->getPrefixedDBkey();
+ $this->parser->mHeadings[] = array( $titleText, $bits['i'] );
+ $serial = count( $this->parser->mHeadings ) - 1;
+ $marker = "{$this->parser->mUniqPrefix}-h-$serial-" . Parser::MARKER_SUFFIX;
+ $s = substr( $s, 0, $bits['level'] ) . $marker . substr( $s, $bits['level'] );
+ $this->parser->mStripState->addGeneral( $marker, '' );
+ $out .= $s;
+ } else {
+ # Expand in virtual stack
+ $newIterator = $contextNode->getChildren();
+ }
+ } else {
+ # Generic recursive expansion
+ $newIterator = $contextNode->getChildren();
+ }
+ } else {
+ throw new MWException( __METHOD__.': Invalid parameter type' );
+ }
+
+ if ( $newIterator !== false ) {
+ $outStack[] = '';
+ $iteratorStack[] = $newIterator;
+ $indexStack[] = 0;
+ } elseif ( $iteratorStack[$level] === false ) {
+ // Return accumulated value to parent
+ // With tail recursion
+ while ( $iteratorStack[$level] === false && $level > 0 ) {
+ $outStack[$level - 1] .= $out;
+ array_pop( $outStack );
+ array_pop( $iteratorStack );
+ array_pop( $indexStack );
+ $level--;
+ }
+ }
+ }
+ --$expansionDepth;
+ return $outStack[0];
+ }
+
+ /**
+ * @param $sep
+ * @param $flags
+ * @return string
+ */
+ function implodeWithFlags( $sep, $flags /*, ... */ ) {
+ $args = array_slice( func_get_args(), 2 );
+
+ $first = true;
+ $s = '';
+ foreach ( $args as $root ) {
+ if ( $root instanceof PPNode_HipHop_Array ) {
+ $root = $root->value;
+ }
+ if ( !is_array( $root ) ) {
+ $root = array( $root );
+ }
+ foreach ( $root as $node ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $s .= $sep;
+ }
+ $s .= $this->expand( $node, $flags );
+ }
+ }
+ return $s;
+ }
+
+ /**
+ * Implode with no flags specified
+ * This previously called implodeWithFlags but has now been inlined to reduce stack depth
+ * @return string
+ */
+ function implode( $sep /*, ... */ ) {
+ $args = array_slice( func_get_args(), 1 );
+
+ $first = true;
+ $s = '';
+ foreach ( $args as $root ) {
+ if ( $root instanceof PPNode_HipHop_Array ) {
+ $root = $root->value;
+ }
+ if ( !is_array( $root ) ) {
+ $root = array( $root );
+ }
+ foreach ( $root as $node ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $s .= $sep;
+ }
+ $s .= $this->expand( $node );
+ }
+ }
+ return $s;
+ }
+
+ /**
+ * Makes an object that, when expand()ed, will be the same as one obtained
+ * with implode()
+ *
+ * @return PPNode_HipHop_Array
+ */
+ function virtualImplode( $sep /*, ... */ ) {
+ $args = array_slice( func_get_args(), 1 );
+ $out = array();
+ $first = true;
+
+ foreach ( $args as $root ) {
+ if ( $root instanceof PPNode_HipHop_Array ) {
+ $root = $root->value;
+ }
+ if ( !is_array( $root ) ) {
+ $root = array( $root );
+ }
+ foreach ( $root as $node ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $out[] = $sep;
+ }
+ $out[] = $node;
+ }
+ }
+ return new PPNode_HipHop_Array( $out );
+ }
+
+ /**
+ * Virtual implode with brackets
+ *
+ * @return PPNode_HipHop_Array
+ */
+ function virtualBracketedImplode( $start, $sep, $end /*, ... */ ) {
+ $args = array_slice( func_get_args(), 3 );
+ $out = array( $start );
+ $first = true;
+
+ foreach ( $args as $root ) {
+ if ( $root instanceof PPNode_HipHop_Array ) {
+ $root = $root->value;
+ }
+ if ( !is_array( $root ) ) {
+ $root = array( $root );
+ }
+ foreach ( $root as $node ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $out[] = $sep;
+ }
+ $out[] = $node;
+ }
+ }
+ $out[] = $end;
+ return new PPNode_HipHop_Array( $out );
+ }
+
+ function __toString() {
+ return 'frame{}';
+ }
+
+ /**
+ * @param $level bool
+ * @return array|bool|String
+ */
+ function getPDBK( $level = false ) {
+ if ( $level === false ) {
+ return $this->title->getPrefixedDBkey();
+ } else {
+ return isset( $this->titleCache[$level] ) ? $this->titleCache[$level] : false;
+ }
+ }
+
+ /**
+ * @return array
+ */
+ function getArguments() {
+ return array();
+ }
+
+ /**
+ * @return array
+ */
+ function getNumberedArguments() {
+ return array();
+ }
+
+ /**
+ * @return array
+ */
+ function getNamedArguments() {
+ return array();
+ }
+
+ /**
+ * Returns true if there are no arguments in this frame
+ *
+ * @return bool
+ */
+ function isEmpty() {
+ return true;
+ }
+
+ /**
+ * @param $name
+ * @return bool
+ */
+ function getArgument( $name ) {
+ return false;
+ }
+
+ /**
+ * Returns true if the infinite loop check is OK, false if a loop is detected
+ *
+ * @param $title Title
+ *
+ * @return bool
+ */
+ function loopCheck( $title ) {
+ return !isset( $this->loopCheckHash[$title->getPrefixedDBkey()] );
+ }
+
+ /**
+ * Return true if the frame is a template frame
+ *
+ * @return bool
+ */
+ function isTemplate() {
+ return false;
+ }
+}
+
+/**
+ * Expansion frame with template arguments
+ * @ingroup Parser
+ */
+class PPTemplateFrame_HipHop extends PPFrame_HipHop {
+ var $numberedArgs, $namedArgs, $parent;
+ var $numberedExpansionCache, $namedExpansionCache;
+
+ /**
+ * @param $preprocessor
+ * @param $parent
+ * @param $numberedArgs array
+ * @param $namedArgs array
+ * @param $title Title
+ */
+ function __construct( $preprocessor, $parent = false, $numberedArgs = array(), $namedArgs = array(), $title = false ) {
+ parent::__construct( $preprocessor );
+
+ $this->parent = $parent;
+ $this->numberedArgs = $numberedArgs;
+ $this->namedArgs = $namedArgs;
+ $this->title = $title;
+ $pdbk = $title ? $title->getPrefixedDBkey() : false;
+ $this->titleCache = $parent->titleCache;
+ $this->titleCache[] = $pdbk;
+ $this->loopCheckHash = /*clone*/ $parent->loopCheckHash;
+ if ( $pdbk !== false ) {
+ $this->loopCheckHash[$pdbk] = true;
+ }
+ $this->depth = $parent->depth + 1;
+ $this->numberedExpansionCache = $this->namedExpansionCache = array();
+ }
+
+ function __toString() {
+ $s = 'tplframe{';
+ $first = true;
+ $args = $this->numberedArgs + $this->namedArgs;
+ foreach ( $args as $name => $value ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $s .= ', ';
+ }
+ $s .= "\"$name\":\"" .
+ str_replace( '"', '\\"', $value->__toString() ) . '"';
+ }
+ $s .= '}';
+ return $s;
+ }
+ /**
+ * Returns true if there are no arguments in this frame
+ *
+ * @return bool
+ */
+ function isEmpty() {
+ return !count( $this->numberedArgs ) && !count( $this->namedArgs );
+ }
+
+ /**
+ * @return array
+ */
+ function getArguments() {
+ $arguments = array();
+ foreach ( array_merge(
+ array_keys($this->numberedArgs),
+ array_keys($this->namedArgs)) as $key ) {
+ $arguments[$key] = $this->getArgument($key);
+ }
+ return $arguments;
+ }
+
+ /**
+ * @return array
+ */
+ function getNumberedArguments() {
+ $arguments = array();
+ foreach ( array_keys($this->numberedArgs) as $key ) {
+ $arguments[$key] = $this->getArgument($key);
+ }
+ return $arguments;
+ }
+
+ /**
+ * @return array
+ */
+ function getNamedArguments() {
+ $arguments = array();
+ foreach ( array_keys($this->namedArgs) as $key ) {
+ $arguments[$key] = $this->getArgument($key);
+ }
+ return $arguments;
+ }
+
+ /**
+ * @param $index
+ * @return array|bool
+ */
+ function getNumberedArgument( $index ) {
+ if ( !isset( $this->numberedArgs[$index] ) ) {
+ return false;
+ }
+ if ( !isset( $this->numberedExpansionCache[$index] ) ) {
+ # No trimming for unnamed arguments
+ $this->numberedExpansionCache[$index] = $this->parent->expand( $this->numberedArgs[$index], PPFrame::STRIP_COMMENTS );
+ }
+ return $this->numberedExpansionCache[$index];
+ }
+
+ /**
+ * @param $name
+ * @return bool
+ */
+ function getNamedArgument( $name ) {
+ if ( !isset( $this->namedArgs[$name] ) ) {
+ return false;
+ }
+ if ( !isset( $this->namedExpansionCache[$name] ) ) {
+ # Trim named arguments post-expand, for backwards compatibility
+ $this->namedExpansionCache[$name] = trim(
+ $this->parent->expand( $this->namedArgs[$name], PPFrame::STRIP_COMMENTS ) );
+ }
+ return $this->namedExpansionCache[$name];
+ }
+
+ /**
+ * @param $name
+ * @return array|bool
+ */
+ function getArgument( $name ) {
+ $text = $this->getNumberedArgument( $name );
+ if ( $text === false ) {
+ $text = $this->getNamedArgument( $name );
+ }
+ return $text;
+ }
+
+ /**
+ * Return true if the frame is a template frame
+ *
+ * @return bool
+ */
+ function isTemplate() {
+ return true;
+ }
+}
+
+/**
+ * Expansion frame with custom arguments
+ * @ingroup Parser
+ */
+class PPCustomFrame_HipHop extends PPFrame_HipHop {
+ var $args;
+
+ function __construct( $preprocessor, $args ) {
+ parent::__construct( $preprocessor );
+ $this->args = $args;
+ }
+
+ function __toString() {
+ $s = 'cstmframe{';
+ $first = true;
+ foreach ( $this->args as $name => $value ) {
+ if ( $first ) {
+ $first = false;
+ } else {
+ $s .= ', ';
+ }
+ $s .= "\"$name\":\"" .
+ str_replace( '"', '\\"', $value->__toString() ) . '"';
+ }
+ $s .= '}';
+ return $s;
+ }
+
+ /**
+ * @return bool
+ */
+ function isEmpty() {
+ return !count( $this->args );
+ }
+
+ /**
+ * @param $index
+ * @return bool
+ */
+ function getArgument( $index ) {
+ if ( !isset( $this->args[$index] ) ) {
+ return false;
+ }
+ return $this->args[$index];
+ }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPNode_HipHop_Tree implements PPNode {
+ var $name, $firstChild, $lastChild, $nextSibling;
+
+ function __construct( $name ) {
+ $this->name = $name;
+ $this->firstChild = $this->lastChild = $this->nextSibling = false;
+ }
+
+ function __toString() {
+ $inner = '';
+ $attribs = '';
+ for ( $node = $this->firstChild; $node; $node = $node->nextSibling ) {
+ if ( $node instanceof PPNode_HipHop_Attr ) {
+ $attribs .= ' ' . $node->name . '="' . htmlspecialchars( $node->value ) . '"';
+ } else {
+ $inner .= $node->__toString();
+ }
+ }
+ if ( $inner === '' ) {
+ return "<{$this->name}$attribs/>";
+ } else {
+ return "<{$this->name}$attribs>$inner</{$this->name}>";
+ }
+ }
+
+ /**
+ * @param $name
+ * @param $text
+ * @return PPNode_HipHop_Tree
+ */
+ static function newWithText( $name, $text ) {
+ $obj = new self( $name );
+ $obj->addChild( new PPNode_HipHop_Text( $text ) );
+ return $obj;
+ }
+
+ function addChild( $node ) {
+ if ( $this->lastChild === false ) {
+ $this->firstChild = $this->lastChild = $node;
+ } else {
+ $this->lastChild->nextSibling = $node;
+ $this->lastChild = $node;
+ }
+ }
+
+ /**
+ * @return PPNode_HipHop_Array
+ */
+ function getChildren() {
+ $children = array();
+ for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
+ $children[] = $child;
+ }
+ return new PPNode_HipHop_Array( $children );
+ }
+
+ function getFirstChild() {
+ return $this->firstChild;
+ }
+
+ function getNextSibling() {
+ return $this->nextSibling;
+ }
+
+ function getChildrenOfType( $name ) {
+ $children = array();
+ for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
+ if ( isset( $child->name ) && $child->name === $name ) {
+ $children[] = $name;
+ }
+ }
+ return $children;
+ }
+
+ /**
+ * @return bool
+ */
+ function getLength() {
+ return false;
+ }
+
+ /**
+ * @param $i
+ * @return bool
+ */
+ function item( $i ) {
+ return false;
+ }
+
+ /**
+ * @return string
+ */
+ function getName() {
+ return $this->name;
+ }
+
+ /**
+ * Split a <part> node into an associative array containing:
+ * name PPNode name
+ * index String index
+ * value PPNode value
+ *
+ * @return array
+ */
+ function splitArg() {
+ $bits = array();
+ for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
+ if ( !isset( $child->name ) ) {
+ continue;
+ }
+ if ( $child->name === 'name' ) {
+ $bits['name'] = $child;
+ if ( $child->firstChild instanceof PPNode_HipHop_Attr
+ && $child->firstChild->name === 'index' )
+ {
+ $bits['index'] = $child->firstChild->value;
+ }
+ } elseif ( $child->name === 'value' ) {
+ $bits['value'] = $child;
+ }
+ }
+
+ if ( !isset( $bits['name'] ) ) {
+ throw new MWException( 'Invalid brace node passed to ' . __METHOD__ );
+ }
+ if ( !isset( $bits['index'] ) ) {
+ $bits['index'] = '';
+ }
+ return $bits;
+ }
+
+ /**
+ * Split an <ext> node into an associative array containing name, attr, inner and close
+ * All values in the resulting array are PPNodes. Inner and close are optional.
+ *
+ * @return array
+ */
+ function splitExt() {
+ $bits = array();
+ for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
+ if ( !isset( $child->name ) ) {
+ continue;
+ }
+ if ( $child->name === 'name' ) {
+ $bits['name'] = $child;
+ } elseif ( $child->name === 'attr' ) {
+ $bits['attr'] = $child;
+ } elseif ( $child->name === 'inner' ) {
+ $bits['inner'] = $child;
+ } elseif ( $child->name === 'close' ) {
+ $bits['close'] = $child;
+ }
+ }
+ if ( !isset( $bits['name'] ) ) {
+ throw new MWException( 'Invalid ext node passed to ' . __METHOD__ );
+ }
+ return $bits;
+ }
+
+ /**
+ * Split an <h> node
+ *
+ * @return array
+ */
+ function splitHeading() {
+ if ( $this->name !== 'h' ) {
+ throw new MWException( 'Invalid h node passed to ' . __METHOD__ );
+ }
+ $bits = array();
+ for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
+ if ( !isset( $child->name ) ) {
+ continue;
+ }
+ if ( $child->name === 'i' ) {
+ $bits['i'] = $child->value;
+ } elseif ( $child->name === 'level' ) {
+ $bits['level'] = $child->value;
+ }
+ }
+ if ( !isset( $bits['i'] ) ) {
+ throw new MWException( 'Invalid h node passed to ' . __METHOD__ );
+ }
+ return $bits;
+ }
+
+ /**
+ * Split a <template> or <tplarg> node
+ *
+ * @return array
+ */
+ function splitTemplate() {
+ $parts = array();
+ $bits = array( 'lineStart' => '' );
+ for ( $child = $this->firstChild; $child; $child = $child->nextSibling ) {
+ if ( !isset( $child->name ) ) {
+ continue;
+ }
+ if ( $child->name === 'title' ) {
+ $bits['title'] = $child;
+ }
+ if ( $child->name === 'part' ) {
+ $parts[] = $child;
+ }
+ if ( $child->name === 'lineStart' ) {
+ $bits['lineStart'] = '1';
+ }
+ }
+ if ( !isset( $bits['title'] ) ) {
+ throw new MWException( 'Invalid node passed to ' . __METHOD__ );
+ }
+ $bits['parts'] = new PPNode_HipHop_Array( $parts );
+ return $bits;
+ }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPNode_HipHop_Text implements PPNode {
+ var $value, $nextSibling;
+
+ function __construct( $value ) {
+ if ( is_object( $value ) ) {
+ throw new MWException( __CLASS__ . ' given object instead of string' );
+ }
+ $this->value = $value;
+ }
+
+ function __toString() {
+ return htmlspecialchars( $this->value );
+ }
+
+ function getNextSibling() {
+ return $this->nextSibling;
+ }
+
+ function getChildren() { return false; }
+ function getFirstChild() { return false; }
+ function getChildrenOfType( $name ) { return false; }
+ function getLength() { return false; }
+ function item( $i ) { return false; }
+ function getName() { return '#text'; }
+ function splitArg() { throw new MWException( __METHOD__ . ': not supported' ); }
+ function splitExt() { throw new MWException( __METHOD__ . ': not supported' ); }
+ function splitHeading() { throw new MWException( __METHOD__ . ': not supported' ); }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPNode_HipHop_Array implements PPNode {
+ var $value, $nextSibling;
+
+ function __construct( $value ) {
+ $this->value = $value;
+ }
+
+ function __toString() {
+ return var_export( $this, true );
+ }
+
+ function getLength() {
+ return count( $this->value );
+ }
+
+ function item( $i ) {
+ return $this->value[$i];
+ }
+
+ function getName() { return '#nodelist'; }
+
+ function getNextSibling() {
+ return $this->nextSibling;
+ }
+
+ function getChildren() { return false; }
+ function getFirstChild() { return false; }
+ function getChildrenOfType( $name ) { return false; }
+ function splitArg() { throw new MWException( __METHOD__ . ': not supported' ); }
+ function splitExt() { throw new MWException( __METHOD__ . ': not supported' ); }
+ function splitHeading() { throw new MWException( __METHOD__ . ': not supported' ); }
+}
+
+/**
+ * @ingroup Parser
+ */
+class PPNode_HipHop_Attr implements PPNode {
+ var $name, $value, $nextSibling;
+
+ function __construct( $name, $value ) {
+ $this->name = $name;
+ $this->value = $value;
+ }
+
+ function __toString() {
+ return "<@{$this->name}>" . htmlspecialchars( $this->value ) . "</@{$this->name}>";
+ }
+
+ function getName() {
+ return $this->name;
+ }
+
+ function getNextSibling() {
+ return $this->nextSibling;
+ }
+
+ function getChildren() { return false; }
+ function getFirstChild() { return false; }
+ function getChildrenOfType( $name ) { return false; }
+ function getLength() { return false; }
+ function item( $i ) { return false; }
+ function splitArg() { throw new MWException( __METHOD__ . ': not supported' ); }
+ function splitExt() { throw new MWException( __METHOD__ . ': not supported' ); }
+ function splitHeading() { throw new MWException( __METHOD__ . ': not supported' ); }
+}
dépôts / lhc / web / wiklou.git / commitdiff