public function testNextCharSpaces()
{
$scanner = new Scanner(new File(FILES_DIR . 'spaces_file'));
$this->assertEquals('t', $scanner->nextChar());
$this->assertEquals('h', $scanner->nextChar());
$this->assertFalse($scanner->getFile()->isEOF());
$this->assertFalse($scanner->nextChar());
$this->assertTrue($scanner->getFile()->isEOF());
$this->assertFalse($scanner->nextChar());
$this->assertTrue($scanner->getFile()->isEOF());
}
public static function parse(Scanner $scanner)
{
$file = $scanner->getFile();
$char = $file->nextChar();
$state = 0;
$value = '';
while (true) {
switch ($state) {
case 0:
// T_ATTRIBUTE begins with [a-zA-Z] or _
if ($scanner->isLetter($char) || $char == '_') {
$state = 1;
$value .= $char;
$char = $file->nextChar();
// Exception
} else {
// Unexpected EOF
if ($char == false) {
throw ExceptionFactory::createUnexpectedEOF(__FILE__, __LINE__, $file->getFileName(), $file->getCurrentLine());
// Unexpected Char
} else {
throw ExceptionFactory::createUnexpectedChar(__FILE__, __LINE__, $file->getFileName(), $file->getCurrentLine(), $char);
}
}
break;
case 1:
// The second char can be [a-zA-Z0-9] or _
if ($scanner->isAlpha($char) || $char == '_') {
$state = 1;
$value .= $char;
$char = $file->nextChar();
// Space indicates the end of the T_ATTRIBUTE
// But we have to eat the next = char
} elseif ($scanner->isSpace($char)) {
$state = 2;
$char = $scanner->nextChar();
// If the next char is =, we're done
} elseif ($char == '=') {
break 2;
// 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(), $char);
}
}
break;
case 2:
// If the next char is =, we're done
if ($char == '=') {
break 2;
// 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;
}
}
// Next lookAhead
$scanner->setLookAhead(Token::T_VALUE);
// T_ATTRIBUTE token found
return new SimpleToken(Token::T_ATTRIBUTE, $value);
}
