Error Handling

neujson has test built in error types

neujson::error::OK
ok
neujson::error::ROOT_NOT_SINGULAR
root not singular, e.g. null x, 0123, 0x0, 0x123
neujson::error::BAD_VALUE
bad value, e.g. nul, ?, +0, +1, .123, 1., INF, inf, NAN, nan, [1,], ["a", nul]
neujson::error::EXPECT_VALUE
expect value, e.g. "", " "
neujson::error::NUMBER_TOO_BIG
number too big, e.g. 1e309, -1e309
neujson::error::BAD_STRING_CHAR
bad character, e.g. ascii 0x01-0x1f
neujson::error::BAD_STRING_ESCAPE
bad escape, e.g. \v, \', \0, \x12, only \", \\, \/, \b, \f, \n, \r, \t is valid
neujson::error::BAD_UNICODE_HEX
bad unicode hex, e.g. \u, \u/000, uG000, \u 123
neujson::error::BAD_UNICODE_SURROGATE
bad unicode surrogate, e.g. \uD800, \uDBFF, \uD800\uE000
neujson::error::MISS_QUOTATION_MARK
miss quotation mark, e.g. ", "abc
neujson::error::MISS_COMMA_OR_SQUARE_BRACKET
miss comma or square bracket, e.g. [1, [1}, [1 2, [[]
neujson::error::MISS_KEY
miss key, e.g. {:1,, {1:1,, {true:1,, {null:1,, {[]:1,, {{}:1,, {"a":1,
neujson::error::MISS_COLON
miss colon, e.g. {"a"}, {"a","b"}
neujson::error::MISS_COMMA_OR_CURLY_BRACKET
miss comma or curly bracket, e.g. {"a":1, {"a":1], {"a":1 "b", {"a":{}
neujson::error::USER_STOPPED
user stopped parse, e.g. user-defined Handler is incomplete

neujson provides error code and error message conversion functions: neujson::parseErrorStr(error::ParseError _err), this function outputs a char * with an error message

#include <cstdio>

#include "neujson/document.h"

int main() {
  neujson::Document doc;
  auto err = doc.parse(R"(
{
    "a":1,
    "b"
}
)");

  if (err != neujson::error::PARSE_OK) {
    puts(neujson::parseErrorStr(err));
    return EXIT_FAILURE;
  }
}

Output:

miss colon

# Error Handling

Error Handling