How to get the C-shell to recognize -?

[Ken Turkowski]

In trying to make my shell scripts understand a standard help inquiry,
I would like to have the csh recognize the flag "-?" , so that one might say:
	gobble -\?
and have it echo:
	gobble takes the flags:
	-v		Verbose
	-o <outfile>	Output is directed to <outfile> rather than the default
	-?		Prints this help message
	...
I have done this easily with sh, but csh is very stubborn.  I have tried
	switch ("$flag")
		case
		case -?:
		case '-?':
		case -\?:
		case "-?":
		case "-\?":
		case "-\\?":
		case "-\\\?":
		case "-\\\\?":
		case "-\\\\\?":
		case '-?':
		case '-\?':
		case '-\\?':
		case '-\\\?':
		case '-\\\\?':
		case '-\\\\\?':
	endsw
and none of them will match.  So I offer this problem as a puzzle to the
Unix community (including Bill Joy, the author).
-- 

Ken Turkowski @ CADLINC, Menlo Park, CA
UUCP: {amd,decwrl,hplabs,nsc,seismo,spar}!turtlevax!ken
ARPA: turtlevax!ken at DECWRL.ARPA