Re: zshaddhistory confusion

["Benjamin R. Haskell" <zsh@xxxxxxxxxx>]

On Tue, 27 Sep 2011, Bart Schaefer wrote:

> On Sep 26, 11:01pm, Benjamin R. Haskell wrote:
> }
> } The following doesn't seem to work, though I'd have thought it would
> } based on the documentation...
> }
> } zshaddhistory () {
> }     fc -p ~/.zsh_history_detail
> }     print -sr -- "${1%%$'\n'} ### ${PWD} $(date '+%Y-%m-%d %R')"
> }     fc -P
> } }
>
> "Doesn't work" how?  What does it [not] do that you were expecting?
>
>     A hook function may call `fc -p ...' to switch the history context
>     so that the history is saved in a different file from the that in
>     the global HISTFILE parameter.  This is handled specially: the
>     history context is automatically restored after the processing of
>     the history line is finished.
>
> What "handled specially" means here is that pushing the history stack 
> when you are inside the history hook automatically disables writing to 
> the normal history file, regardless of whether you "return 1" or call 
> "fc -P" or anything else.  That should probably be made more explicit 
> in the doc, the only thing it's describing is the implicit "fc -pa".

Yes, it sounds like you understand my confusion:

I expected the implicit "fc -pa".

I didn't expect that writing to the normal history file was disabled.

--
Best,
Ben