Re: [resend] please test and commit: upgrade for pkgsrc/shells/mksh

[Thorsten Glaser <tg%mirbsd.de@localhost>]

Aleksey Cheusov dixit:

>Have you a plan to implement in mksh an analog to bash's ${PIPESTATUS[@]},
>or zsh's $pipestatus?

I don't know GNU bash or zsh that well…

>                      IMHO it very useful feature for interactive use.
>
>example of my prompt:
>
>0 ~>true
>0 ~>false
>1 ~>true | true | false
>0 0 1 ~>false | true | false
>1 0 1 ~>

… but judging from this, it's not possible to do that because the last
command of a pipeline is run in a subshell. I also do not intend to
add “orthogonal” extensions like this one, because mksh, even if it's
designed to not put stones in your way if you use it interactively,
is primarily a scripting shell. Let me illustrate this with a small
example. Someone wanted a zsh-like precmd() hook, which I told him
to implement it like this:

| export PS1='$(precmd)'"$PS1"

Same for zsh-like chpwd():

| function cd
| {
|       chpwd "$@"
|       builtin cd "$@"
| }

I want the “core” of the shell small but functional, and adding these
directly in the core isn't going along well with the KISS, BSD, whatever
principles I have.

But you might have noticed I have $? in my prompt as well ;)

bye,
//mirabile
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