previous cmd in RPS1

previous cmd in RPS1

[Miek Gieben]

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hello all,

I have my prompt setup in such a way that it will print my previous
cmd in green (when the exitcode was 0) or red (exitcode != 0) on the
right side of my screen. This works really well, expect in some cases.

It seems that sometimes this setup fails, for instance when my
previous cmd had a % in it, this gets re-evaluated and results in
a weird looking prompt. Also when I try to type in a for-loop and I 
make a typo which causes the loop to hang, my prompt also hangs.

It there any way to make zsh /not/ to parse my previous cmd but
just show it as is?

Below are the relevant piecies of my prompt setup:

RPSL=$'%{\e[0m%}%{\e[$C;31m%}%(0?.%{\e[$C;32m%}.(%?%)) '
RPSR=$'%{\e[0m%}'

((MAXMID=$COLUMNS / 2)) # truncate to this value
RPSMID=$history[$[${(%):-%h}-1]]
RPS1="$RPSL%$MAXMID<... <$RPSMID$RPSR"

Thanks for any help,

--
grtz,
  - Miek

http://www.miek.nl                      http://www.nlnetlabs.nl
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Re: previous cmd in RPS1

[Bart Schaefer]

On Aug 26, 11:36am, Miek Gieben wrote:
}
} It there any way to make zsh /not/ to parse my previous cmd but
} just show it as is?

Use the psvar array and the %v prompt replacement.

psvar=( $history[$[${(%):-%h}-1]] )
RPS1="$RPSL%$MAXMID<... <%v$RPSR"

Or -- less good in my opinion -- use promptsubst:

setopt promptsubst
RPSMID=$history[$[${(%):-%h}-1]]
RPS1="$RPSL%$MAXMID<... <"\$RPSMID"$RPSR"

Re: previous cmd in RPS1

[Miek Gieben]

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[On 26 Aug, @18:18, Bart Schaefer wrote in "Re: previous cmd in RPS1 ..."]
> On Aug 26, 11:36am, Miek Gieben wrote:
> }
> } It there any way to make zsh /not/ to parse my previous cmd but
> } just show it as is?
> 
> Use the psvar array and the %v prompt replacement.
> 
> psvar=( $history[$[${(%):-%h}-1]] )
> RPS1="$RPSL%$MAXMID<... <%v$RPSR"

nice! This works. Never heard of psvar, but it seems to do the trick.
(now that I now about psvar, this msg also explains it:
http://www.zsh.org/mla/users/2005/msg00860.html) (also from you :) )

Thanks,

grtz Miek

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