Error()
This function is useful in softcoded commands, especially @addcommand'ed ones. If the global_error_obj config parameter is not set, this will return the default error message. If it is, it passes <string> as if the player had typed it and gotten a bad command.
Example
> say error()
You say, "Huh? (Type 'help' for help.)"
> say error(@pmit)
You typed '@pmit'.