json-parser/boolean.c at master · RiadhAdrani/json-parser · GitHub

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#include <stdlib.h>
#include <string.h>

#include "boolean.h"

JsonValue *match_boolean(char *json, int *index, int size)
{
  JsonValue *result = create_json_value();
  result->start = *index;
  result->end = *index;
  result->error->code = "";

  int ok = 0;

  // remaining size should be 4 or 5
  if (size >= *index + 5)
  {
    ok = 1;

    for (int i = 0; i < 5; i++)
    {

      if (json[*index + i] != FALSE[i])
      {
        ok = 0;
        break;
      }

      result->end++;
    }

    if (ok)
    {
      result->type = JSON_FALSE;
    }
  }

  if (result->type != JSON_FALSE && size >= *index + 4)
  {
    ok = 1;
    result->end = *index;

    for (int i = 0; i < 4; i++)
    {
      if (json[*index + i] != TRUE[i])
      {
        ok = 0;
        break;
      }

      result->end++;
    }

    if (ok)
    {
      result->type = JSON_TRUE;
    }
  }

  if (ok)
  {
    free_json_error(result->error);
    result->error = NULL;
    result->end--;
  }
  else
  {
    result->error->code = "boolean-invalid-value";
  }

  return result;
};