1.3.0

New features

• The Json::parse() and parse_in_place() methods now have
  an additional options parameter, which can turn ON/OFF
  additional syntax that is not present in JSON standard.

• New optHex parsing option (OFF by default). It allows integers
  in hex format (like: 0x1A, 0X2b).

• New optIdentifiers parsing option (OFF by default). It allows
  object member names as C identifiers without quotes: {foo: "bar"}.

• Added parsing options that are ON by default.
  Previous version supported these features, but these could not
  be turned off. Note that JSON standard doesn't allow these:

  • optUniqueMembers: disallow duplicate member names within the
    object. Apparently standard JSON allows (but not recommends)
    duplicates, see https://datatracker.ietf.org/doc/html/rfc8259#section-4
  • optTrailingComma: allow one trailing comma in arrays and objects,
    like [1,2,].
  • optEmptyFraction: Allow floating point numbers with no digits after
    decimal point (like 1. or 2.e3).
  • optLineCommentC: allow // comments.

Changes

• Raise ErrSyntax if a null character is found before the text ends,
  when the length of input is passed explicitly to parse() method.

Fixes

• Avoid crash due to stack overflow when the nested level of values
  is too high. Raise ErrSyntax if nested level is 512 or higher.
  This issue was caught thanks to https://github.com/nst/JSONTestSuite
• Fix string parsing when " escape was present.
  This issue was caught thanks to https://github.com/nst/JSONTestSuite
• Fix string parsing when character code is greater than 0x7F. Basically
  parsing failed for all unescaped non-ASCII characters.
  This issue was caught thanks to https://github.com/nst/JSONTestSuite