diff options
Diffstat (limited to 'platform/www/inc/Parsing/Handler/Lists.php')
| -rw-r--r-- | platform/www/inc/Parsing/Handler/Lists.php | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/platform/www/inc/Parsing/Handler/Lists.php b/platform/www/inc/Parsing/Handler/Lists.php new file mode 100644 index 0000000..282ddfb --- /dev/null +++ b/platform/www/inc/Parsing/Handler/Lists.php @@ -0,0 +1,186 @@ +<?php + +namespace dokuwiki\Parsing\Handler; + +class Lists extends AbstractRewriter +{ + protected $listCalls = array(); + protected $listStack = array(); + + protected $initialDepth = 0; + + const NODE = 1; + + /** @inheritdoc */ + public function finalise() + { + $last_call = end($this->calls); + $this->writeCall(array('list_close',array(), $last_call[2])); + + $this->process(); + $this->callWriter->finalise(); + unset($this->callWriter); + } + + /** @inheritdoc */ + public function process() + { + + foreach ($this->calls as $call) { + switch ($call[0]) { + case 'list_item': + $this->listOpen($call); + break; + case 'list_open': + $this->listStart($call); + break; + case 'list_close': + $this->listEnd($call); + break; + default: + $this->listContent($call); + break; + } + } + + $this->callWriter->writeCalls($this->listCalls); + return $this->callWriter; + } + + protected function listStart($call) + { + $depth = $this->interpretSyntax($call[1][0], $listType); + + $this->initialDepth = $depth; + // array(list type, current depth, index of current listitem_open) + $this->listStack[] = array($listType, $depth, 1); + + $this->listCalls[] = array('list'.$listType.'_open',array(),$call[2]); + $this->listCalls[] = array('listitem_open',array(1),$call[2]); + $this->listCalls[] = array('listcontent_open',array(),$call[2]); + } + + + protected function listEnd($call) + { + $closeContent = true; + + while ($list = array_pop($this->listStack)) { + if ($closeContent) { + $this->listCalls[] = array('listcontent_close',array(),$call[2]); + $closeContent = false; + } + $this->listCalls[] = array('listitem_close',array(),$call[2]); + $this->listCalls[] = array('list'.$list[0].'_close', array(), $call[2]); + } + } + + protected function listOpen($call) + { + $depth = $this->interpretSyntax($call[1][0], $listType); + $end = end($this->listStack); + $key = key($this->listStack); + + // Not allowed to be shallower than initialDepth + if ($depth < $this->initialDepth) { + $depth = $this->initialDepth; + } + + if ($depth == $end[1]) { + // Just another item in the list... + if ($listType == $end[0]) { + $this->listCalls[] = array('listcontent_close',array(),$call[2]); + $this->listCalls[] = array('listitem_close',array(),$call[2]); + $this->listCalls[] = array('listitem_open',array($depth-1),$call[2]); + $this->listCalls[] = array('listcontent_open',array(),$call[2]); + + // new list item, update list stack's index into current listitem_open + $this->listStack[$key][2] = count($this->listCalls) - 2; + + // Switched list type... + } else { + $this->listCalls[] = array('listcontent_close',array(),$call[2]); + $this->listCalls[] = array('listitem_close',array(),$call[2]); + $this->listCalls[] = array('list'.$end[0].'_close', array(), $call[2]); + $this->listCalls[] = array('list'.$listType.'_open', array(), $call[2]); + $this->listCalls[] = array('listitem_open', array($depth-1), $call[2]); + $this->listCalls[] = array('listcontent_open',array(),$call[2]); + + array_pop($this->listStack); + $this->listStack[] = array($listType, $depth, count($this->listCalls) - 2); + } + } elseif ($depth > $end[1]) { // Getting deeper... + $this->listCalls[] = array('listcontent_close',array(),$call[2]); + $this->listCalls[] = array('list'.$listType.'_open', array(), $call[2]); + $this->listCalls[] = array('listitem_open', array($depth-1), $call[2]); + $this->listCalls[] = array('listcontent_open',array(),$call[2]); + + // set the node/leaf state of this item's parent listitem_open to NODE + $this->listCalls[$this->listStack[$key][2]][1][1] = self::NODE; + + $this->listStack[] = array($listType, $depth, count($this->listCalls) - 2); + } else { // Getting shallower ( $depth < $end[1] ) + $this->listCalls[] = array('listcontent_close',array(),$call[2]); + $this->listCalls[] = array('listitem_close',array(),$call[2]); + $this->listCalls[] = array('list'.$end[0].'_close',array(),$call[2]); + + // Throw away the end - done + array_pop($this->listStack); + + while (1) { + $end = end($this->listStack); + $key = key($this->listStack); + + if ($end[1] <= $depth) { + // Normalize depths + $depth = $end[1]; + + $this->listCalls[] = array('listitem_close',array(),$call[2]); + + if ($end[0] == $listType) { + $this->listCalls[] = array('listitem_open',array($depth-1),$call[2]); + $this->listCalls[] = array('listcontent_open',array(),$call[2]); + + // new list item, update list stack's index into current listitem_open + $this->listStack[$key][2] = count($this->listCalls) - 2; + } else { + // Switching list type... + $this->listCalls[] = array('list'.$end[0].'_close', array(), $call[2]); + $this->listCalls[] = array('list'.$listType.'_open', array(), $call[2]); + $this->listCalls[] = array('listitem_open', array($depth-1), $call[2]); + $this->listCalls[] = array('listcontent_open',array(),$call[2]); + + array_pop($this->listStack); + $this->listStack[] = array($listType, $depth, count($this->listCalls) - 2); + } + + break; + + // Haven't dropped down far enough yet.... ( $end[1] > $depth ) + } else { + $this->listCalls[] = array('listitem_close',array(),$call[2]); + $this->listCalls[] = array('list'.$end[0].'_close',array(),$call[2]); + + array_pop($this->listStack); + } + } + } + } + + protected function listContent($call) + { + $this->listCalls[] = $call; + } + + protected function interpretSyntax($match, & $type) + { + if (substr($match, -1) == '*') { + $type = 'u'; + } else { + $type = 'o'; + } + // Is the +1 needed? It used to be count(explode(...)) + // but I don't think the number is seen outside this handler + return substr_count(str_replace("\t", ' ', $match), ' ') + 1; + } +} |