Function appendHex

Utilities/cmjsoncpp/src/lib_json/json_writer.cpp:272–274

}

static void appendHex(String& result, unsigned ch) {
  result.append("\\u").append(toHex16Bit(ch));
}

static String valueToQuotedStringN(const char* value, size_t length,
                                   bool emitUTF8 = false) {