Function PathRemoveLastItem

MdePkg/Library/BaseLib/FilePaths.c:20–46

Removes the last directory or file entry in a path. For a path which is like L"fs0:startup.nsh", it's converted to L"fs0:". @param[in,out] Path A pointer to the path to modify. @retval FALSE Nothing was found to remove. @retval TRUE A directory or file was removed. **/

  @retval TRUE      A directory or file was removed.
**/
BOOLEAN
EFIAPI
PathRemoveLastItem(
  IN OUT CHAR16 *Path
  )
{
  CHAR16        *Walker;
  CHAR16        *LastSlash;
  //
  // get directory name from path... ('chop' off extra)
  //
  for ( Walker = Path, LastSlash = NULL
      ; Walker != NULL && *Walker != CHAR_NULL
      ; Walker++
     ){
    if (*Walker == L'\\' && *(Walker + 1) != CHAR_NULL) {
      LastSlash = Walker+1;
    } else if (*Walker == L':' && *(Walker + 1) != L'\\' && *(Walker + 1) != CHAR_NULL) {
      LastSlash = Walker+1;
    }
  }
  if (LastSlash != NULL) {
    *LastSlash = CHAR_NULL;
    return (TRUE);
  }
  return (FALSE);
}

/**
  Function to clean up paths.