On Wed, 24 Nov 2004 10:27:59 +0300, Vladimir Prus <ghost@cs.msu.su> wrote:
Ok, let me start with a caveat: ignoring unknown options can be ambiguous:
program --something 10 --known_option
Now, is "10" a value of unknown option or positional option? To remove the problems all unknown options must use this form:
--something=10
which may be problem, or may not, depending on your situation. What do you think?
I think it is unreasonable to expect all command lines to be specified in this way. If --something expects an argument, then 10 is that argument. If --something is a flag then its either an unknown argument or (if you allow argument vector rearranging ala GNU getopt) it is the first positional parameter. Allowing unknown options to be ignored is a very desirable feature, though it should be disabled by default. -- Caleb Epstein caleb dot epstein at gmail dot com