def _expand_authorized_keys_path(path, user, home):
 converted_path = ''
 had_escape = False
 for char in path:
  if had_escape:
   had_escape = False
   if (char == '%'):
    converted_path += '%'
   elif (char == 'u'):
    converted_path += user
   elif (char == 'h'):
    converted_path += home
   else:
    error = 'AuthorizedKeysFile path: unknown token character "%{0}"'.format(char)
    raise CommandExecutionError(error)
   continue
  elif (char == '%'):
   had_escape = True
  else:
   converted_path += char
 if had_escape:
  error = "AuthorizedKeysFile path: Last character can't be escape character"
  raise CommandExecutionError(error)
 return converted_path

def _expand_authorized_keys_path ( path , user , home ) : converted_path = '' had_escape = False for char in path : if had_escape : had_escape = False if ( char == '%' ) : converted_path += '%' elif ( char == 'u' ) : converted_path += user elif ( char == 'h' ) : converted_path += home else : error = 'AuthorizedKeysFile path: unknown token character "%{0}"' . format ( char ) raise CommandExecutionError ( error ) continue elif ( char == '%' ) : had_escape = True else : converted_path += char if had_escape : error = "AuthorizedKeysFile path: Last character can't be escape character" raise CommandExecutionError ( error ) return converted_path
expand the authorizedkeysfile expression .