/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$match = $reader->findPattern($this->patterns->getNumberPattern());
if (!$match) {
return false;
}
$stream->push(new Token(Token::TYPE_NUMBER, $match[0], $reader->getPosition()));
$reader->moveForward(strlen($match[0]));
return true;
}
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$match = $reader->findPattern($this->patterns->getIdentifierPattern());
if (!$match) {
return false;
}
$value = $this->escaping->escapeUnicode($match[0]);
$stream->push(new Token(Token::TYPE_IDENTIFIER, $value, $reader->getPosition()));
$reader->moveForward(strlen($match[0]));
return true;
}
/**
* {@inheritdoc}
*/
public function handle(Reader $reader, TokenStream $stream)
{
$quote = $reader->getSubstring(1);
if (!in_array($quote, array("'", '"'))) {
return false;
}
$reader->moveForward(1);
$match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
if (!$match) {
throw new InternalErrorException(sprintf('Should have found at least an empty match at %s.', $reader->getPosition()));
}
// check unclosed strings
if (strlen($match[0]) === $reader->getRemainingLength()) {
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
}
// check quotes pairs validity
if ($quote !== $reader->getSubstring(1, strlen($match[0]))) {
throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
}
$string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
$stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
$reader->moveForward(strlen($match[0]) + 1);
return true;
}
