Function CleanupStr

misc/pstring.cpp:48–79

CleanupStr This function strips all leading and trailing spaces, keeping internal spaces. This goes for tabs too.

// CleanupStr
//    This function strips all leading and trailing spaces, keeping internal spaces. This goes for tabs too.
std::size_t CleanupStr(char *dest, const char *src, std::size_t destlen) {
  if (destlen == 0)
    return 0;

  const char *end;
  std::size_t out_size;

  // Trim leading space
  while (std::isspace((uint8_t)*src))
    src++;

  // All spaces?
  if (*src == '\0') {
    *dest = '\0';
    return 1;
  }

  // Trim trailing space
  end = src + std::strlen(src) - 1;
  while (end > src && std::isspace((uint8_t)*end))
    end--;
  end++;

  // Set output size to minimum of trimmed string length and buffer size minus 1
  out_size = (end - src) < destlen - 1 ? (end - src) : destlen - 1;

  // Copy trimmed string and add null terminator
  std::memcpy(dest, src, out_size);
  dest[out_size] = '\0';

  return out_size;
}