From: Sebastian Stark <sstark+zsh@mailbox.org>
To: zsh-users@zsh.org
Subject: Dynamic parameters for PROMPT_SUBST functions
Date: Fri, 19 Jun 2020 08:32:33 +0200 [thread overview]
Message-ID: <20200619063233.zybs27xvqp56t4p5@singold> (raw)
Hello,
I am trying to have a function call in my prompt that gets the return
value of the last command as a parameter (%?).
However I am having trouble to get this right. Instead of an actual
number, what is handed to the function is the literal string %?.
Is there anything I can do better or is this just not possible?
I could probably use $? in the function itself, but that sounds a bit
fragile to me because I maybe get a different value of $?.
In this example I write the parameter to a file, because if I just print
it it would get printed as a literal %? and expanded later and thus hide
the issue I am facing
% zsh -f
% x(){print $1 >>/tmp/lll}
% setopt PROMPT_SUBST
% PROMPT=$'$(x %?) %m%# '
% cat /tmp/lll
%?
Thanks for any hints.
Sebastian
next reply other threads:[~2020-06-19 6:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-19 6:32 Sebastian Stark [this message]
2020-06-19 6:58 ` Lawrence Velázquez
2020-06-19 10:56 ` Daniel Shahaf
2020-06-19 17:08 ` Sebastian Stark
2020-06-20 11:06 ` Daniel Shahaf
2020-06-21 15:17 ` Sebastian Stark
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