Function json_normalize_number

strings/json_normalize.c:149–235

int
json_normalize_number(DYNAMIC_STRING *out, const char *str, size_t str_len)
{
  int err= 0;
  long int magnitude= 0;
  int negative= 0;
  size_t i= 0;
  size_t j= 0;
  size_t k= 0;
  char *buf= NULL;
  size_t buf_size = str_len + 1;

  buf= json_norm_malloc(buf_size);
  if (!buf)
    return 1;

  memset(buf, 0x00, buf_size);

  if (str[0] == '-')
  {
    negative= 1;
    ++i;
  }

  /* grab digits preceding the decimal */
  for (; i < str_len && str[i] != '.' && str[i] != 'e' && str[i] != 'E'; ++i)
    buf[j++] = str[i];

  magnitude = (long)(j - 1);

  if (i < str_len)
  {
    /* skip the . */
    if (str[i] == '.')
      ++i;

    /* grab rest of digits before the E */
    for (; i < str_len && str[i] != 'e' && str[i] != 'E'; ++i)
      buf[j++] = str[i];
  }

  /* trim trailing zeros */
  for (k = j - 1; k && buf[k] == '0'; --k, --j)
    buf[k] = '\0';

  /* trim the leading zeros */
  for (k = 0; buf[k] && buf[k] == '0'; ++k);
  if (k)
  {
    memmove(buf, buf + k, j - k);
    j = j - k;
    buf[j] = '\0';
    magnitude -= (long)k;
  }

  if (!j)
  {
    err= dynstr_append_mem(out, STRING_WITH_LEN("0.0E0"));