/**
* Prepare the parsing of a Textile string, the real parsing is done in {@link _parse()}
*
* @param string $value
*
* @return array
*/
public function parse($value)
{
if (!is_string($value)) {
throw new Exception('Value to parse should be a string.');
}
if (empty($value)) {
throw new Exception('Value to parse cannot be left empty.');
}
// first make we only have LF newlines, also trim the value
$this->_value = str_replace(array("\r\n", "\r"), "\n", $value);
$this->_value = trim($this->_value);
// initialize variables and tokenize
$this->_valueLen = iconv_strlen($this->_value, 'UTF-8');
$this->_pointer = 0;
$this->_buffer = '';
$this->_temp = array();
$this->_tokens = array();
$this->_tokenize();
// create the tree
$this->_tree = new Markup\TokenList();
$this->_current = new Markup\Token('', Markup\Token::TYPE_NONE, 'Zend_Markup_Root');
$this->_tree->addChild($this->_current);
$this->_createTree();
return $this->_tree;
}
/**
* Parse the token array into a tree
*
* @param array $tokens
*
* @return \Zend\Markup\TokenList
*/
protected function _createTree($tokens)
{
// variable initialization for treebuilder
$this->_searchedStoppers = array();
$this->_tree = new Markup\TokenList();
$this->_current = new Markup\Token('', Markup\Token::TYPE_NONE, 'Zend_Markup_Root');
$this->_tree->addChild($this->_current);
foreach ($tokens as $token) {
// first we want to know if this tag is a stopper, or at least a searched one
if ($this->_isStopper($token['tag'])) {
// find the stopper
$oldItems = array();
while (!in_array($token['tag'], $this->_tags[$this->_current->getName()]['stoppers'])) {
$oldItems[] = clone $this->_current;
$this->_current = $this->_current->getParent();
}
// we found the stopper, so stop the tag
$this->_current->setStopper($token['tag']);
$this->_removeFromSearchedStoppers($this->_current);
$this->_current = $this->_current->getParent();
// add the old items again if there are any
if (!empty($oldItems)) {
foreach (array_reverse($oldItems) as $item) {
/* @var $token \Zend\Markup\Token */
$this->_current->addChild($item);
$item->setParent($this->_current);
$this->_current = $item;
}
}
} else {
if ($token['type'] == Markup\Token::TYPE_TAG) {
if ($token['tag'] == self::NEWLINE) {
// this is a newline tag, add it as a token
$this->_current->addChild(new Markup\Token("\n", Markup\Token::TYPE_NONE, '', array(), $this->_current));
} elseif (isset($token['name']) && $token['name'][0] == '/') {
// this is a stopper, add it as a empty token
$this->_current->addChild(new Markup\Token($token['tag'], Markup\Token::TYPE_NONE, '', array(), $this->_current));
} elseif (isset($this->_tags[$this->_current->getName()]['parse_inside']) && !$this->_tags[$this->_current->getName()]['parse_inside']) {
$this->_current->addChild(new Markup\Token($token['tag'], Markup\Token::TYPE_NONE, '', array(), $this->_current));
} else {
// add the tag
$child = new Markup\Token($token['tag'], $token['type'], $token['name'], $token['attributes'], $this->_current);
$this->_current->addChild($child);
// add stoppers for this tag, if its has stoppers
if ($this->_getType($token['name']) == self::TYPE_DEFAULT) {
$this->_current = $child;
$this->_addToSearchedStoppers($this->_current);
}
}
} else {
// no tag, just add it as a simple token
$this->_current->addChild(new Markup\Token($token['tag'], Markup\Token::TYPE_NONE, '', array(), $this->_current));
}
}
}
return $this->_tree;
}
/**
* Test filtering
*
* @return void
*/
public function testFiltering()
{
// create a token list
$tokenList = new TokenList();
// first create a root token
$root = new Token('', Token::TYPE_MARKUP, 'Zend_Markup_Root');
$tokenList->addChild($root);
// now add the actual markups to the root token
$root->addChild(new Token('baz ', Token::TYPE_NONE, '', array(), $root));
$testMarkup = new Token('foohooo', Token::TYPE_MARKUP, 'test', array(), $root);
$testMarkup->setStopper('bazzaa');
$root->addChild($testMarkup);
// now add the content for the test markup
$testMarkup->addChild(new Token('booh', Token::TYPE_NONE, '', array(), $testMarkup));
// add a filter to the test markup
$this->_renderer->getMarkup('test')->addFilter(new StringToUpperFilter(), -1);
$this->assertEquals('baz fooBOOHbar', $this->_renderer->render($tokenList));
}
/**
* Parse a string
*
* @param string $value
* @return Zend_Markup_TokenList
*/
public function parse($value)
{
if (!is_string($value)) {
/**
* @see Zend_Markup_Parser_Exception
*/
throw new Parser\Exception('Value to parse should be a string.');
}
if (empty($value)) {
/**
* @see Zend_Markup_Parser_Exception
*/
throw new Parser\Exception('Value to parse cannot be left empty.');
}
// initialize variables
$tree = new TokenList();
$current = new Token('', Token::TYPE_NONE, 'Zend_Markup_Root');
$tree->addChild($current);
$token = new Token($value, Token::TYPE_NONE, '', array(), $current);
$current->addChild($token);
return $tree;
}
/**
* Parse the token array into a tree
*
* @param array $tokens
*
* @return \Zend\Markup\TokenList
*/
protected function _createTree($tokens)
{
// variable initialization for treebuilder
$groupStack = array($this->_group);
$this->_searchedStoppers = array();
$this->_tree = new TokenList();
$this->_current = new Token('', Token::TYPE_NONE, 'Zend_Markup_Root');
$this->_tree->addChild($this->_current);
foreach ($tokens as $token) {
// first we want to know if this tag is a stopper, or at least a searched one
if ($this->_isStopper($token['tag'])) {
// find the stopper
$oldItems = array();
while (!in_array($token['tag'], $this->_tags[$this->_current->getName()]['stoppers'])) {
$oldItems[] = clone $this->_current;
$this->_current = $this->_current->getParent();
// use a lower level group
$this->_group = array_pop($groupStack);
}
// we found the stopper, so stop the tag
$this->_current->setStopper($token['tag']);
$this->_removeFromSearchedStoppers($this->_current);
$this->_current = $this->_current->getParent();
$this->_group = array_pop($groupStack);
// add the old items again if there are any
if (!empty($oldItems)) {
foreach (array_reverse($oldItems) as $item) {
/* @var $token \Zend\Markup\Token */
$this->_current->addChild($item);
$item->setParent($this->_current);
$this->_current = $item;
// re-add the group
$groupStack[] = $this->_group;
$this->_group = $this->_getGroup($item->getName());
}
}
} else {
if ($token['type'] == Token::TYPE_MARKUP) {
if ($token['tag'] == self::NEWLINE) {
// this is a newline tag, add it as a token
$this->_current->addChild(new Token("\n", Token::TYPE_NONE, '', array(), $this->_current));
} elseif (isset($token['name']) && $token['name'][0] == '/') {
// this is a stopper, add it as a empty token
$this->_current->addChild(new Token($token['tag'], Token::TYPE_NONE, '', array(), $this->_current));
} elseif (!$this->_checkTagAllowed($token)) {
// TODO: expand this to using groups for the context-awareness
$this->_current->addChild(new Token($token['tag'], Token::TYPE_NONE, '', array(), $this->_current));
} else {
// add the tag
$child = new Token($token['tag'], $token['type'], $token['name'], $token['attributes'], $this->_current);
$this->_current->addChild($child);
// set the new group
$groupStack[] = $this->_group;
$this->_group = $this->_getGroup($token['name']);
// add stoppers for this tag, if its has stoppers
if ($this->_getType($token['name']) == self::TYPE_DEFAULT) {
$this->_current = $child;
$this->_addToSearchedStoppers($this->_current);
}
}
} else {
// no tag, just add it as a simple token
$this->_current->addChild(new Token($token['tag'], Token::TYPE_NONE, '', array(), $this->_current));
}
}
}
return $this->_tree;
}
