Re: can't you tell me "unknown option" before drawing windows?

[Eli Zaretskii]

On 18 Jun 2001, Dan Jacobson wrote:

> Starting emacs with an unknown option, e.g.,
> $ emacs -nv filename
> should fail right there on the command line, instead of having to wait
> for emacs to bring up its windows, etc. just to tell you the same
> thing: "unknown option."

I don't think it can: some of the options are specific to the window
system you are using, and are not parsed until the window system is
detected and its support loaded at run time.

> emacs --help doesn't need to set up all of emacs to give you its
> output, so why should mistakes like emacs ---help, etc.

If you look closely at what "emacs --help" print, you will see that it
doesn't show all the options Emacs can accept.  For example, -rv and
--title are not shown, and neither are --background-color or --iconic.