35     public function __construct($definition, $args) {  argument
37         $this->_args = $args;
41     public function args() { return $this->_args; }  function in AST\\ElementInstance
45         foreach ($this->args() as $arg) {
64                 if (count($this->args()) == 0) {
67                 if ($this->args()[0] instanceof ElementInstance) {
68                     return $this->args()[0]->getRepresentation();
70                     return $this->args()[0]->match();
89             foreach ($this->args() as $arg) {
111                 foreach ($this->args() as $arg) {
131             foreach ($this->args() as $arg) {
158             foreach ($this->args() as $arg) {
163                     $arg->printTree($indentStr . $extraIndentStr, $argIdx == count($this->args()));
173         foreach ($this->args() as $arg) {
190                 if (count($this->args()) > 1) {
197                 foreach ($this->args() as $arg) {
217                 if (count($this->args()) == 0) {
335     private static function _getLongestAlternateChain($args, $position, $tokDef, $stopAt=-1) {  argument
337         for ($lastFound = $position; $lastFound < count($args); $lastFound += 2) {
338             if ($args[$lastFound]->definition() == $tokDef) {
350     private static function _isMatchingAlternateChain($args, $position, $tokDefs) {  argument
352 …for ($lastFound = $position; $lastFound < count($args) && $tokDefIdx < count($tokDefs); $lastFound…
353             if ($args[$lastFound]->definition() == $tokDefs[$tokDefIdx]) {
362     private static function _getWrappedSequence($args, $position, $tokDefs, $nested) {  argument
367         if ($args[$position]->definition() != $openTokDef) {
371         for ($i = $position + 1; $i < count($args); ++$i) {
372             if ($args[$i]->definition() == $closeTokDef) {
376             } else if ($nested && $args[$i]->definition() == $openTokDef) {
383     private static function _extractAlternateChain($args, $position, $length) {  argument
385         for ($i = $position; $i < count($args) && count($retval) < $length; $i += 2) {
386             $retval[] = $args[$i];
391     private static function _splicePrefix(&$args, $firstTokPosition, $chainLength, $definition) {  argument
395         $elmArgs = self::_extractAlternateChain($args, $firstTokPosition + 1, $chainLength);
397         if ($firstTokPosition + $chainLength * 2 > count($args)) {
400         array_splice($args, $firstTokPosition, $chainLength * 2, array($elmInst));
404     private static function _splicePostfix(&$args, $firstTokPosition, $chainLength, $definition) {  argument
408         $elmArgs = self::_extractAlternateChain($args, $firstTokPosition - 1, $chainLength);
412         } elseif ($firstTokPosition + $chainLength * 2 - 1 > count($args)) {
415         array_splice($args, $firstTokPosition - 1, $chainLength * 2, array($elmInst));
419     private static function _spliceInfix(&$args, $firstTokPosition, $chainLength, $definition) {  argument
423         $elmArgs = self::_extractAlternateChain($args, $firstTokPosition - 1, $chainLength + 1);
427         } elseif ($firstTokPosition + $chainLength * 2 > count($args)) {
430         array_splice($args, $firstTokPosition - 1, $chainLength * 2 + 1, array($elmInst));
434     private static function _spliceWrap(&$args, $firstTokPosition, $sequenceLength, $definition) {  argument
441         if ($firstTokPosition + $sequenceLength > count($args)) {
444         $elmArgs = array_slice($args, $firstTokPosition + 1, $sequenceLength - 2);
446         array_splice($args, $firstTokPosition, $sequenceLength, array($elmInst));
450     private static function _spliceNone(&$args, $firstTokPosition, $definition) {  argument
454         if ($firstTokPosition + 1 > count($args)) {
457 …array_splice($args, $firstTokPosition, 1, array(new ElementInstance($definition, array($args[$firs…
461     public function trySpliceAt(&$args, &$position) {  argument
464                 if ($args[$position]->definition() == $this->tokenDefs()[0]) {
465                     $position = self::_spliceNone($args, $position, $this);
471 …           $chainLength = self::_getLongestAlternateChain($args, $position, $this->tokenDefs()[0]);
473                         $position = self::_splicePrefix($args, $position, $chainLength, $this);
477 …$chainLength = self::_getLongestAlternateChain($args, $position, $this->tokenDefs()[0], $this->ari…
479                         $position = self::_splicePrefix($args, $position, $chainLength, $this);
482                 } else if (self::_isMatchingAlternateChain($args, $position, $this->tokenDefs())) {
483                     $position = self::_splicePrefix($args, $position, $this->arity(), $this);
489 …       $chainLength = self::_getLongestAlternateChain($args, $position + 1, $this->tokenDefs()[0]);
491                         $position = self::_splicePostfix($args, $position + 1, $chainLength, $this);
495 …$chainLength = self::_getLongestAlternateChain($args, $position + 1, $this->tokenDefs()[0], $this-…
497                         $position = self::_splicePostfix($args, $position + 1, $chainLength, $this);
500 …            } else if (self::_isMatchingAlternateChain($args, $position + 1, $this->tokenDefs())) {
501                     $position = self::_splicePostfix($args, $position + 1, $this->arity(), $this);
507 …       $chainLength = self::_getLongestAlternateChain($args, $position + 1, $this->tokenDefs()[0]);
509                         $position = self::_spliceInfix($args, $position + 1, $chainLength, $this);
513 …$chainLength = self::_getLongestAlternateChain($args, $position + 1, $this->tokenDefs()[0], $this-…
515                         $position = self::_spliceInfix($args, $position + 1, $chainLength, $this);
518 …            } else if (self::_isMatchingAlternateChain($args, $position + 1, $this->tokenDefs())) {
519                     $position = self::_spliceInfix($args, $position + 1, $this->arity() - 1, $this);
524 …$sequenceLength = self::_getWrappedSequence($args, $position, $this->tokenDefs(), $this->nested());
526                     $position = self::_spliceWrap($args, $position, $sequenceLength, $this);
529                     throw new UnmatchedWrapperException($this, $args[$position]);
535     public function spliceInstancesIn(&$args) {  argument
537         for ($i = 0; $i < count($args); ++$i) {
538             if ($this->trySpliceAt($args, $i)) {
566         foreach ($elmInstance->args() as $arg) {
607         $args = $elmInstance->args();
611                 if (count($args) != 1) {
613                 } else if (!($args[0] instanceof TokenInstance)) {
615                 } else if ($args[0]->definition() != $this->tokenDefs()[0]) {
623                     if (count($args) < 1 && $this->fixing() == Fixing::Infix) {
625                     } elseif (count($args) == 0) {
628                 } elseif (count($args) != $this->arity()) {