ObjFW  Diff

		if (options & OFJSONRepresentationOptionIsIdentifier) {
			const char *cString = self.UTF8String;

			if ((!OFASCIIIsAlpha(cString[0]) &&
			    cString[0] != '_' && cString[0] != '$') ||
			    strpbrk(cString, " \n\r\t\b\f\\\"'") != NULL) {
				[JSON prependString: @"\""];
				[JSON insertString: @"\"" atIndex: 0];
				[JSON appendString: @"\""];
			}
		} else {
			[JSON prependString: @"\""];
			[JSON insertString: @"\"" atIndex: 0];
			[JSON appendString: @"\""];
		}
	} else {
		[JSON replaceOccurrencesOfString: @"\n" withString: @"\\n"];

		[JSON prependString: @"\""];
		[JSON insertString: @"\"" atIndex: 0];
		[JSON appendString: @"\""];
	}

	[JSON makeImmutable];

	return JSON;
}