ObjFW  Diff

			if ([attribute isEqual: @"version"]) {
				if (![value hasPrefix: @"1."])
					return false;

				hasVersion = true;
			}

			if ([attribute isEqual: @"encoding"]) {
				[value lowercase];

				if ([value isEqual: @"utf-8"])
					_encoding = OF_STRING_ENCODING_UTF_8;
				else if ([value isEqual: @"iso-8859-1"] ||
				    [value isEqual: @"iso_8859-1"])
					_encoding =
					    OF_STRING_ENCODING_ISO_8859_1;
				else if ([value isEqual: @"iso-8859-2"] ||
				    [value isEqual: @"iso_8859-2"])
					_encoding =
					    OF_STRING_ENCODING_ISO_8859_2;
				else if ([value isEqual: @"iso-8859-15"] ||
				    [value isEqual: @"iso_8859-15"])
					_encoding =
					    OF_STRING_ENCODING_ISO_8859_15;
				else if ([value isEqual: @"windows-1251"] ||
				    [value isEqual: @"cp1251"] ||
				    [value isEqual: @"cp-1251"])
					_encoding =
					    OF_STRING_ENCODING_WINDOWS_1251;
				else if ([value isEqual: @"windows-1252"] ||
				    [value isEqual: @"cp1252"] ||
				    [value isEqual: @"cp-1252"])
					_encoding =
					    OF_STRING_ENCODING_WINDOWS_1252;
				else if ([value isEqual: @"cp437"] ||
				    [value isEqual: @"cp-437"])
					_encoding =
					    OF_STRING_ENCODING_CODEPAGE_437;
				else if ([value isEqual: @"cp850"] ||
				    [value isEqual: @"cp-850"])
					_encoding =
					    OF_STRING_ENCODING_CODEPAGE_850;
				else if ([value isEqual: @"cp858"] ||
				    [value isEqual: @"cp-858"])
					_encoding =
					    OF_STRING_ENCODING_CODEPAGE_858;
				else if ([value isEqual: @"macintosh"])
					_encoding =
					    OF_STRING_ENCODING_MAC_ROMAN;
				else
					return false;
			}

			last = i + 1;
			PIState = 0;

			break;
		}
	}