/**
* Using the given token types as open and close
*
* @param \vc\iface\Tokens\Reader $reader
* @param Integer $open
* @param Integer $close
* @return String
*/
private function parse(\vc\iface\Tokens\Reader $reader, array $open, $close)
{
$depth = 0;
$first = TRUE;
$content = '';
while ($depth >= 0 && $reader->hasToken()) {
$token = $reader->popToken();
$type = $token->getType();
if ($first) {
$first = FALSE;
if (in_array($type, $open)) {
continue;
}
}
if (in_array($type, $open)) {
$depth++;
} else {
if ($type == $close) {
$depth--;
}
}
if ($depth >= 0) {
$content .= $token->getContent();
}
}
return $content;
}
/**
* Returns the next token in the stack without shifting it off the list
*
* @return \vc\Tokens\Token|NULL Returns NULL if no tokens are left
*/
public function peekAtToken()
{
if (!$this->active) {
return NULL;
}
return $this->inner->peekAtToken();
}
/**
* @see \vc\iface\Tokens\Search::findSkipping
*/
public function peekToSkipping(array $types)
{
while ($this->reader->hasToken()) {
$token = $this->reader->peekAtToken();
$type = $token->getType();
if (in_array($type, $types)) {
return $token;
}
$this->reader->popToken();
}
}
/**
* Reads the path of a namespace
*
* @param \vc\iface\Tokens\Reader $reader The token source to pull from
* @return NULL
*/
public function parsePath(\vc\iface\Tokens\Reader $reader)
{
// Skip past any white space
while ($reader->hasToken() && $reader->peekAtToken()->is(Token::T_WHITESPACE)) {
$reader->popToken();
}
if (!$reader->hasToken()) {
throw new \vc\Tokens\Exception\UnexpectedEnd(array(Token::T_STRING, Token::T_NS_SEPARATOR));
}
$reader->peekAtToken()->expect(array(Token::T_STRING, Token::T_NS_SEPARATOR));
$path = array();
while ($reader->hasToken()) {
$token = $reader->peekAtToken();
if ($token->is(array(Token::T_STRING, Token::T_NS_SEPARATOR))) {
$path[] = $token->getContent();
} else {
break;
}
$reader->popToken();
}
return implode('', $path);
}
/**
* Returns the next token
*
* @return \vc\Tokens\Token|NULL Returns NULL if no tokens are left
*/
public function popToken()
{
$this->peekAtToken();
return $this->inner->popToken();
}
/**
* Returns the next token in the stack without shifting it off the list
*
* @return \vc\Tokens\Token|NULL Returns NULL if no tokens are left
*/
public function peekAtToken()
{
return $this->inner->peekAtToken();
}
/**
* Dumps the remaining contents of this token reader to the output
*
* @return NULL
*/
public function dump()
{
while ($this->reader->hasToken()) {
$this->reader->popToken()->dump();
}
}