On Sat, Apr 14, 2018 at 06:03:29PM -0700, Philip Guenther wrote:
> On Sun, 15 Apr 2018, Martijn Dekker wrote:
> > $ ksh -c 'trap "" CONT; trap'
> > trap -- CONT
> >
> > That is not "suitable for re-entry into the shell". Empty words must be
> > quoted, or they disappear. Expected output:
> >
> > trap -- '' CONT
> >
> > Patch below. OK?
>
> That also changes the output of set, export, and alias:
>
> : morgaine; ksh -c 'alias foo=""; alias -p; export foo=; set; export -p' |
> grep foo
> alias foo=
> foo=
> export foo=
> : morgaine; obj/ksh -c 'alias foo=""; alias -p; export foo=; set; export -p'
> | grep foo
> alias foo=''
> foo=''
> export foo=''
> : morgaine;
It also badly effects non-empty cases:
$ ksh -c alias
autoload='typeset -fu'
functions='typeset -f'
hash='alias -t'
history='fc -l'
integer='typeset -i'
local=typeset
login='exec login'
nohup='nohup '
r='fc -s'
stop='kill -STOP'
type='whence -v'
$ ./obj/ksh -c alias
autoload=''
functions=''
hash=''
history=''
integer=''
local=''
login=''
nohup=''
r=''
stop=''
type=''
