I'm writing a Foundation tool that will take both options and pathname
arguments.
If you use NSUserDefaults, you can handle key-value options (-threshold 17)
pretty easily, but this has limitations. I don't see how it can be graceful for
* Two-hyphen options (chatty --verbose).
* Non-value options (ls -a).
* Single-item key-value options (chatty --verbose=3 -or- chatty -v3).
* Concatenated options (ls -al)
I also don't know what you do about "normal" arguments (ls -al /Users/fritza)
without using NSUserDefaults _and_ running through [[NSProcessInfo processInfo]
arguments] with at least a minimal state machine, which defeats the purpose.
Enough complaining. Correct me if I'm wrong.
I remember from 2001 or so that there was an open-source framework inherited
from the OpenStep days, that included a helper for getopt(3) sorts of tasks,
but for the life of me, I can't remember its name, and I don't know where it
would be hosted or whether it would be compatible with today's Foundation
framework.
Yes, iterating through [[NSProcessInfo processInfo] arguments] and parsing for
myself is the ultimate option, but if it's a solved problem, why make all the
mistakes again?
Google doesn't turn up much, beyond the NSUserDefaults trick. Any ideas?
— F
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