int _scanner::transition (int curr_state, char next_char) {


	switch (curr_state) {
		case STRING:
			switch (next_char) {
				case '"':
					return FINAL;
				default:
					return STRING;
			}
		case DECIMAL:
			switch (next_char) {
				case '.':
					return FLOAT;
				case '0':
				case '1':
				case '2':
				case '3':
				case '4':
				case '5':
				case '6':					
				case '7':					
				case '8':
				case '9':
					return DECIMAL;
				default:
					return FINAL;
			}
			break;
	}

	return 0;

}