public function testForwarding()
{
$scanner = new Scanner(new File(FILES_DIR . 'not_empty_file'));
$scanner->getFile()->nextChar();
$this->assertEquals('ot', $scanner->forward(2));
$scanner->getFile()->nextChar();
$this->assertEquals('empty_file', $scanner->forward(20));
}
public static function parse(Scanner $scanner)
{
$file = $scanner->getFile();
$char = $file->nextChar();
$state = 0;
$value = '';
$pos = 0;
while (true) {
switch ($state) {
case 0:
// Ex: "value"
if ($char == '"') {
$state = 1;
$pos = $file->find('"');
// Ex: 'value'
} elseif ($char == "'") {
$state = 2;
$pos = $file->find("'");
// Exception
} else {
// Unexpected EOF
if ($char == false) {
throw ExceptionFactory::createUnexpectedEOF(__FILE__, __LINE__, $file->getFileName(), $file->getCurrentLine());
// Unexpected Char
} else {
throw ExceptionFactory::createUnexpectedChar(__FILE__, __LINE__, $file->getFileName(), $file->getCurrentLine(), $char);
}
}
break;
case 1:
// Char " not found
if ($pos === false) {
throw ExceptionFactory::createCannotFindChar(__FILE__, __LINE__, $file->getFileName(), $file->getCurrentLine(), '"');
}
// Get the value
$value .= $scanner->forward($pos);
// Bypass "
$scanner->forward(1);
break 2;
case 2:
// Char ' not found
if ($pos === false) {
throw ExceptionFactory::createCannotFindChar(__FILE__, __LINE__, $file->getFileName(), $file->getCurrentLine(), "'");
}
// Get the value
$value .= $scanner->forward($pos);
// Bypass '
$scanner->forward(1);
break 2;
}
}
// Next lookAhead
$scanner->setLookAhead(Token::T_ATTRIBUTE | Token::T_END | Token::T_CLOSE);
// T_VALUE token found
return new SimpleToken(Token::T_VALUE, $value);
}
public static function parse(Scanner $scanner)
{
// We eat the character >
$scanner->forward(1);
// Next lookAhead
$scanner->setLookAhead(Token::T_OPEN_TAG | Token::T_CLOSE_TAG | Token::T_TEXT);
// T_END token found
return new Token(Token::T_END);
}
