Function TrimSpaces

ShellPkg/Application/Shell/Shell.c:82–107

Cleans off leading and trailing spaces and tabs. @param[in] String pointer to the string to trim them off. **/

  @param[in] String pointer to the string to trim them off.
**/
EFI_STATUS
TrimSpaces(
  IN CHAR16 **String
  )
{
//  ASSERT(String != NULL);
//  ASSERT(*String!= NULL);
  if (!String || !(*String)) {
    return EFI_INVALID_PARAMETER;
  }
  //
  // Remove any spaces and tabs at the beginning of the (*String).
  //
  while (((*String)[0] == L' ') || ((*String)[0] == L'\t')) {
    CopyMem((*String), (*String)+1, StrSize((*String)) - sizeof((*String)[0]));
  }

  //
  // Remove any spaces and tabs at the end of the (*String).
  //
  while ((StrLen (*String) > 0) && (((*String)[StrLen((*String))-1] == L' ') || ((*String)[StrLen((*String))-1] == L'\t'))) {
    (*String)[StrLen((*String))-1] = CHAR_NULL;
  }

  return (EFI_SUCCESS);
}

/**
  Parse for the next instance of one string within another string. Can optionally make sure that