Re: i cant see whats the issue, .. ps1 + propt command + date

[Alex fxmbsw7 Ratchev]

there is a bug in my alias, the restore must begin with a newline, due
to its a command ran

ill fix and check again
i have a good feeling it might fix it

On Sat, Sep 25, 2021 at 9:11 PM Alex fxmbsw7 Ratchev <fxmbsw7@gmail.com> wrote:
>
> btw also your two examples were invalid cause it does var=$var, not declare -p
> cause in the case the var is unset it will be set, with yours
> i dont mind, you tried, not so hard, i saw,
> but again.. thanks !
>
> On Sat, Sep 25, 2021 at 9:09 PM Alex fxmbsw7 Ratchev <fxmbsw7@gmail.com> 
> wrote:
> >
> > so thank you big time for writing me back
> >
> > i havent tried ( exactly ) the your two examples but i did with mine,
> > just on the term with --norc
> > it bugs..
> >
> > alias s='_s=$( declare -p 2>&- IFS ) ' r='eval "${_s:-unset -v IFS}" '
> > now=$EPOCHREALTIME s IFS=. now2=( $now ) r ; declare -p now2
> > bash: declare: now2: not found
> >
> > the regarding spaces and newlines i havent experienced any non working
> > aliases for me are 1:1 text replacements, ..
> > it just weird in this case another bug ( this here, not additionally more )
> >
> > i have to rely on bash being stable
> > a new2 not appearing / disappearing is a reason to make bash bugfixed
> > stable instead of work around ( .. such major bugs )
> >
> > On Sat, Sep 25, 2021 at 8:58 PM Greg Wooledge <greg@wooledge.org> wrote:
> > >
> > > On Sat, Sep 25, 2021 at 08:25:59PM +0200, Alex fxmbsw7 Ratchev wrote:
> > > > ++ prptnow=1632594230.535965
> > > > +++ declare -p IFS
> > > > ++ __savedIFS='declare -- IFS=$'\'' \t\n'\'''
> > > > ++ IFS=.
> > > > ++ prptnow2='(1632594230.535965)'
> > >
> > > I don't know why you're making your life so incredibly difficult.  You
> > > could use the ${now#*.} and ${now%.*} expansions as I showed before, and
> > > this would all be a thing of the past.
> > >
> > > If you still think there's a bug in bash's alias expansions, it would
> > > help enormously if you could write a simple recipe for how to produce
> > > the bug.  "Run these 3 commands.  The output is ___.  It should be ____."
> > >
> > > Anyway, here's what I get when I attempt something similar to your setup:
> > >
> > > unicorn:~$ bash
> > > unicorn:~$ alias saveIFS='qq=qq '
> > > unicorn:~$ x=y now=123.456 saveIFS IFS=. array=( $now )
> > > unicorn:~$ declare -p x now qq array
> > > declare -- x="y"
> > > declare -- now="123.456"
> > > declare -- qq="qq"
> > > declare -a array=([0]="123" [1]="456")
> > >
> > > Or another try with two aliases:
> > >
> > > unicorn:~$
> > > exit
> > > unicorn:~$ bash
> > > unicorn:~$ alias saveIFS='_save="$IFS" '
> > > unicorn:~$ alias restoreIFS='IFS="$_save" '
> > > unicorn:~$ now=123.456 saveIFS IFS=. array=( $now ) restoreIFS
> > > unicorn:~$ declare -p now array
> > > declare -- now="123.456"
> > > declare -a array=([0]="123" [1]="456")
> > >
> > > I guess that's ... correct?  Maybe?  Is that what you expected to see?
> > > I honestly can't even tell.  Your "alias expansion to an assignment
> > > (with trailing whitespace) in the middle of an assignment so that the
> > > syntax is completely different from what it looks like" construct is
> > > so incredibly arcane, cryptic and obtuse that I have no idea what is
> > > supposed to be happening.
> > >
> > > Do you get something different?  If so, what do you get?
> > >
> > > Can you show us a terminal session INCLUDING SHELL PROMPTS which starts
> > > from a vanilla interactive bash instance, with NOTHING being brought
> > > in from dot files, which shows behavior that you believe is wrong?
> > > Set up the aliases and the variables, and then run the commands that
> > > produce the output you don't like.  Then paste the whole thing into an
> > > email.
> > >
> > > If the erroneous output only happens when you have things stuffed into
> > > PROMPT_COMMAND or PS1 or DEBUG traps, and not when you type normal
> > > commands into a normal shell, then that's also important information.
> > > In that case, show us a vanilla bash session in which you set the aliases
> > > and then set the PROMPT_COMMAND variable and so on.  Don't bring it in
> > > from a dot file, because that's too hard for us to understand.  We can't
> > > SEE it.  We need to be able to see it.
> > >
> > > Use "bash --norc" if you have to, to get a clean starting point.
> > >