Re: How do we get state of a flag in set -o ...

[alex xmb ratchev]

On Tue, Jul 11, 2023, 22:05 Greg Wooledge <greg@wooledge.org> wrote:

> On Wed, Jul 12, 2023 at 02:54:10AM +0700, Budi wrote:
> > How do we get state of a flag in set -o ... that has no directly alias
> > set [-+] , e.g.
> > set -o posix
> > or
> > set -o vi
> > ?
> >
> > not, e.g. set -o errexit , as it can be retrieved by echo $-
>
> Parse the output of "set -o".
>

i was trying some simple code but fatally failed

+ ret
++ set -o
+ a=('allexport         off
braceexpand     on
emacs           on
errexit         off
errtrace        off
functrace       off
hashall         on
histexpand      on
history         on
ignoreeof       off
interactive-comments    on
keyword         off                                               monitor
       on                                                noclobber
 off                                               noexec          off
                                         noglob          off
                               nolog           off
                     notify          off
           nounset         off
 onecmd          off
 physical        off
pipefail        off
posix           off
privileged      off
verbose         off
vi              off
xtrace          on')
+ declare -gA a
+ declare -p a
declare -A a=([$'allexport      \toff\nbraceexpand    \ton\nemacs
\ton\nerrexit        \toff\nerrtrace       \toff\nfunctrace
\toff\nhashall        \ton\nhistexpand     \ton\nhistory
\ton\nignoreeof      \toff\ninteractive-comments\ton\nkeyword
\toff\nmonitor        \ton\nnoclobber      \toff\nnoexec
 \toff\nnoglob         \toff\nnolog          \toff\nnotify
 \toff\nnounset        \toff\nonecmd         \toff\nphysical
 \toff\npipefail       \toff\nposix          \toff\nprivileged
 \toff\nverbose        \toff\nvi             \toff\nxtrace
 \ton']="" )
~ $ IFS=$' \t\n' ; ret() { declare -gA a=( $( set -o ) ) ; declare -p a ; }
; sett() { declare -A m=( off + on - ) ; declare -ga args=( set ) ; for z
in ${!a[@]} ; do declare -n "v=a[$z]" "mm=m[$v]" ; echo args+= ${mm}o $z  ;
done ; echo set "${args[@]}" ; } ; ret

i didnt try without declare but ill try

why s that not split
might be declare issue

>