On 12/14/23 1:24 PM, Grisha Levit wrote:
On Thu, Dec 14, 2023, 12:51 Chet Ramey <chet.ra...@case.edu
<mailto:chet.ra...@case.edu>> wrote:
On 12/12/23 3:55 PM, Grisha Levit wrote:
> Since expanding a prompt string that contains a funsub will modify the
> value of $_, would it make sense to restore the value of $_ after the
> expansion is complete, as we do when executing PROMPT_COMMAND?
If we're worried about this as a side effect, why not preserve $_ around
calls to function_substitute()? Or are the prompt string expansions the
only reasonable use case?
I was concerned that since $_ "expands to the
last argument to the previous simple command executed in the foreground",
and commands in funsubs fit that criteria it might not be exactly correct
to preserve $_ around funsubs in general.
We'll start with decode_prompt_string and see if any other use cases
present themselves.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
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