public function parse()
{
$token = null;
while (($token = $this->scanner->nextToken()) != false) {
switch ($token->getType()) {
case Token::T_REGISTER:
// T_REGISTER has to be parsed differently of the other tokens
$this->componentBuilder->setOpenTag($token);
$register = null;
while (($register = $this->scanner->nextToken()) !== false) {
switch ($register->getType()) {
case Token::T_ATTRIBUTE:
$this->componentBuilder->addAttr($register);
break;
case Token::T_VALUE:
$this->componentBuilder->addValue($register);
break;
case Token::T_CLOSE:
$this->componentBuilder->build()->registerNS();
break 3;
default:
throw ExceptionFactory::createNoChildsException(__FILE__, __LINE__, $this->scanner->getFile()->getFileName(), $this->scanner->getFile()->getCurrentLine(), $token->getName(), $token->getNamespace());
}
}
break;
case Token::T_OPEN_TAG:
// Push onto the stack for aftermost comparison
$this->stack->push($token);
// Start building the component
$this->componentBuilder->setOpenTag($token);
break;
case Token::T_CLOSE_TAG:
case Token::T_CLOSE:
// Match the current token with the previous T_OPEN_TAG
if ($this->matchTokens($this->stack->top(), $token)) {
$this->stack->pop();
} else {
throw ExceptionFactory::createUnexpectedToken(__FILE__, __LINE__, $this->scanner->getFile()->getFileName(), $this->scanner->getFile()->getCurrentLine(), $token);
}
// Build the component and add into the tree
// T_CLOSE_TAG doesn't need to be pushed into the tree nor built
if ($token->getType() == Token::T_CLOSE) {
// It's not a child, so put it into the Tree
if (count($this->stack) == 0) {
$this->tree->addNoChild($this->componentBuilder->build());
} else {
$this->tree->addNoChild($this->componentBuilder->build(), $this->tree->top());
}
// We removed the token from the stack, so we have to set the new top component
} else {
$this->tree->setTop($this->tree->top()->getParent());
}
break;
case Token::T_END:
// Build the component and add into the tree
if (count($this->stack) == 1) {
$this->tree->add($this->componentBuilder->build());
} else {
$this->tree->add($this->componentBuilder->build(), $this->tree->top());
}
// This components does not allow children
if (!$this->tree->top()->isChildrenAllowed()) {
throw ExceptionFactory::createChildrenNotAllowed(__FILE__, __LINE__, $this->tree->top()->getId());
}
break;
case Token::T_ATTRIBUTE:
// Add the T_ATTRIBUTE into the ComponentBuilder
$this->componentBuilder->addAttr($token);
break;
case Token::T_VALUE:
// Add the T_VALUE into the ComponentBuilder
$this->componentBuilder->addValue($token);
break;
case Token::T_TEXT:
// Add the value of T_TEXT into the Tree
if ($this->stack->isEmpty()) {
$this->tree->addText($token);
} else {
$this->tree->addText($token, $this->tree->top());
}
break;
}
}
// Check if there is no tokens left into the stack
$this->verifyStack();
return $this->tree;
}
