Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes:
> So while you can combine flags for *most* programs, you still won't
> be able to say things like
>
> git clean -qdx
>
> just because that's still a shellscript, and doing any fancy argument
> parsing in shell is just painful.
Indeed... but for my personal shell scripts I like to use a construct
like the following for parsing args:
while :; do
case "$1" in
... lots of cases to handle normal args ...
-[!-]?*)
# split concatenated single-letter options apart
FIRST="$1"; shift
set -- `echo $FIRST | $SED 's/-\(.\)\(.*\)/-\1 -\2/'` "$@"
;;
-*)
# unrecognized option
unrec_opt "$1"; exit 1;;
*)
# non-option
break;
esac
done
I'm sure there are problems with it, but it generally seems to work
pretty reasonably for short options.
-Miles
--
97% of everything is grunge
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