Escape character "\\003\", get unexpected value

[dota17]

I changed line 48 of the test_parse.c to

single_basic_parse("\"\\003\"", 0);

The program threw an incorrect value.

48              single_basic_parse("\"\\003\"", 0);
(gdb) n
new_obj.to_string("\003")=null

[hawicz]

That looks correct to me. Were you perhaps trying to do single_basic_parse("\"\\u0003\"", 0); ?

[dota17]

Thanks，your are right. I checked RFC8259.
In chapter seven.

   To escape an extended character that is not in the Basic Multilingual
   Plane, the character is represented as a 12-character sequence,
   encoding the UTF-16 surrogate pair.  So, for example, a string
   containing only the G clef character (U+1D11E) may be represented as
   "\uD834\uDD1E".

      string = quotation-mark *char quotation-mark

      char = unescaped /
          escape (
              %x22 /          ; "    quotation mark  U+0022
              %x5C /          ; \    reverse solidus U+005C
              %x2F /          ; /    solidus         U+002F
              %x62 /          ; b    backspace       U+0008
              %x66 /          ; f    form feed       U+000C
              %x6E /          ; n    line feed       U+000A
              %x72 /          ; r    carriage return U+000D
              %x74 /          ; t    tab             U+0009
              %x75 4HEXDIG )  ; uXXXX                U+XXXX

JSON does not support \ddd and \xhh escape characters.