Hi Chris,
What you want is a bit harder in fish than in bash. In bash, the prompt is
specified by some kind of format string that can be manipulated. In fish,
it's a function, and functions are not really first class values in the way
they are in scripting languages like python. What you'd want to do is rename
the old fish_prompt function to something else, and make a new fish_prompt
function that calls the old one. Unfortunately, as far as I know there's no
direct way to rename a function. You can do it using this slightly hacky
way, though:
echo "function old_fish_prompt" > tmpfile
echo -n \# >> tmpfile # this will comment out the
# old 'function fish_prompt ... ' line
functions fish_prompt >> tmpfile # dump function definition
. tmpfile # source the 'renamed' function
rm tmpfile
Then you can redefine fish_prompt to do something and then call
old_fish_prompt.
Though if someone knows if it's possible to rename/shadow functions
directly, that would be better. I guess it requires a new builtin, though.
Jan
On Sat, Aug 28, 2010 at 03:37, Christopher Nilsson <
christop...@otherchirps.net> wrote:
> Hi all,
>
> I think I'm missing something obvious.
>
> I'm trying to add a fish_prompt function that adds to the existing prompt.
> I can clobber the old one easily enough, but am having trouble building on
> it.
>
> The aim is to convert a bash script, which is simply setting PS1="(new
> prompt stuff) $PS1". Is there a fishy equivalent?
>
> Thanks,
> Chris.
>
>
>
>
>
>
>
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