simdjson-simdjson/tools/json2json.cpp

#include <unistd.h>

#include "simdjson/jsonparser.h"
#include "simdjson/jsonioutil.h"

using namespace std;

int main(int argc, char *argv[]) {
  int c;
  bool rawdump = false;

  while ((c = getopt (argc, argv, "d")) != -1)
    switch (c)
      {
      case 'd':
        rawdump = true;
        break;
      default:
        abort ();
      }
  if (optind >= argc) {
    cerr << "Reads json in, out the result of the parsing. " << endl;  
    cerr << "Usage: " << argv[0] << " <jsonfile>" << endl;
    exit(1);
  }
  const char * filename = argv[optind];
  if(optind + 1 < argc) {
    cerr << "warning: ignoring everything after " << argv[optind  + 1] << endl;
  }
  std::string_view p;
  try {
    p = get_corpus(filename);
  } catch (const std::exception& e) { // caught by reference to base
    std::cout << "Could not load the file " << filename << std::endl;
    return EXIT_FAILURE;
  }
  ParsedJson pj;
  bool allocok = pj.allocateCapacity(p.size(), 1024);
  if(!allocok) {
    std::cerr << "failed to allocate memory" << std::endl;
    return EXIT_FAILURE;
  }
  bool is_ok = json_parse(p, pj); // do the parsing, return false on error
  if (!is_ok) {
    std::cerr << " Parsing failed. " << std::endl;
    return EXIT_FAILURE;
  }
  is_ok = rawdump ? pj.dump_raw_tape() : pj.printjson();
  if(!is_ok) {
    std::cerr << " Could not print out parsed result. " << std::endl;
    return EXIT_FAILURE;      
  }
  return EXIT_SUCCESS;
}