/**
* Handles parsing elements whose CodeDefinitions disable parsing of element
* contents. This function uses a rolling window of 3 tokens until it finds the
* appropriate closing tag or reaches the end of the token stream.
*
* @param $parent the current parent element
* @param $tokenizer the tokenizer we're using
*/
protected function parseAsTextUntilClose(ElementNode $parent, Tokenizer $tokenizer)
{
/* $parent's code definition doesn't allow its contents to be parsed. Here we use
* a sliding of window of three tokens until we find [ /tagname ], signifying the
* end of the parent. */
if (!$tokenizer->hasNext()) {
return $parent;
}
$prevPrev = $tokenizer->next();
if (!$tokenizer->hasNext()) {
$this->createTextNode($parent, $prevPrev);
return $parent;
}
$prev = $tokenizer->next();
if (!$tokenizer->hasNext()) {
$this->createTextNode($parent, $prevPrev);
$this->createTextNode($parent, $prev);
return $parent;
}
$curr = $tokenizer->next();
while ('[' != $prevPrev || '/' . $parent->getTagName() != strtolower($prev) || ']' != $curr) {
$this->createTextNode($parent, $prevPrev);
$prevPrev = $prev;
$prev = $curr;
if (!$tokenizer->hasNext()) {
$this->createTextNode($parent, $prevPrev);
$this->createTextNode($parent, $prev);
return $parent;
}
$curr = $tokenizer->next();
}
}
/**
* This is the next step in parsing a tag. It's possible for it to still be invalid at this
* point but many of the basic invalid tag name conditions have already been handled.
*
* @param ElementNode $parent the current parent element
* @param Tokenizer $tokenizer the tokenizer we're using
* @param string $tagContent the text between the [ and the ], assuming there is actually a ]
*
* @return ElementNode the new parent element
*/
protected function parseTag(ElementNode $parent, Tokenizer $tokenizer, $tagContent)
{
if (!$tokenizer->hasNext() || ($next = $tokenizer->next()) != ']') {
$this->createTextNode($parent, '[');
$this->createTextNode($parent, $tagContent);
return $parent;
}
list($tmpTagName, $options) = $this->parseOptions($tagContent);
if ('' != $tmpTagName && '/' == $tmpTagName[0]) {
$actualTagName = substr($tmpTagName, 1);
} else {
$actualTagName = $tmpTagName;
}
if ('' != $tmpTagName && '/' == $tmpTagName[0]) {
$elToClose = $parent->closestParentOfType($actualTagName);
if (null === $elToClose || count($options) > 1) {
$this->createTextNode($parent, '[');
$this->createTextNode($parent, $tagContent);
$this->createTextNode($parent, ']');
return $parent;
}
return $elToClose->getParent();
}
if ('' == $actualTagName || !$this->codeExists($actualTagName, !empty($options))) {
$this->createTextNode($parent, '[');
$this->createTextNode($parent, $tagContent);
$this->createTextNode($parent, ']');
return $parent;
}
$el = new $this->elementNodeClassName();
$el->setNodeId(++$this->nextNodeid);
$code = $this->getCode($actualTagName, !empty($options));
$el->setBBCodeDefinition($code);
if (!empty($options)) {
$el->setAttribute($options);
}
$parent->addChild($el);
return $el;
}
