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); }