/**
* Attempts to match the current lookahead token with any of the given tokens.
*
* If any of them matches, this method updates the lookahead token; otherwise
* a syntax error is raised.
*
* @param array $tokens
*
* @return boolean
*/
private function matchAny(array $tokens)
{
if (!$this->lexer->isNextTokenAny($tokens)) {
$this->syntaxError(implode(' or ', array_map(array($this->lexer, 'getLiteral'), $tokens)));
}
return $this->lexer->moveNext();
}
/**
* Matches any one of the tokens and advances.
*
* @param array $tokens The list of tokens.
*
* @return boolean TRUE if the next token matches, FALSE if not.
*
* @throws Exception
* @throws SyntaxException If a syntax error is found.
*/
private function matchAny(array $tokens)
{
if (!$this->lexer->isNextTokenAny($tokens)) {
throw SyntaxException::expectedToken(implode(' or ', array_map(array($this->lexer, 'getLiteral'), $tokens)), null, $this->lexer);
}
return $this->lexer->moveNext();
}
/**
* Identifier ::= string
*
* @return string
*/
private function Identifier()
{
// check if we have an annotation
if (!$this->lexer->isNextTokenAny(self::$classIdentifiers)) {
$this->syntaxError('namespace separator or identifier');
}
$this->lexer->moveNext();
$className = $this->lexer->token['value'];
while ($this->lexer->lookahead['position'] === $this->lexer->token['position'] + strlen($this->lexer->token['value']) && $this->lexer->isNextToken(DocLexer::T_NAMESPACE_SEPARATOR)) {
$this->match(DocLexer::T_NAMESPACE_SEPARATOR);
$this->matchAny(self::$classIdentifiers);
$className .= '\\' . $this->lexer->token['value'];
}
return $className;
}
