Re: Occur stack

["Andreas Röhler" <andreas.roehler@online.de>]

Am 16.01.2014 18:19, schrieb Tom:
> Tom <adatgyujto <at> gmail.com> writes:
>>
>> The code is generic, so in theory it can work for other
>> commands too, but I only tested it with occur.
>>
>
> I tried it with grep too, specifically grep-find. You need to
> add  the saving function to compilation-finish-functions:
>
>
> (defun buffer-history-grep-save (buf result)
>    (if (and (eq major-mode 'grep-mode)
>             (equal result "finished\n"))
>        (buffer-history-save)))
>
> (add-hook 'compilation-finish-functions 'buffer-history-grep-save)
>
>
> If you do some grepping and then run M-x buffer-history-list
> in the *grep* buffer then you can see your previous greps
> and you can restore them.
>
> The listing is not as useful as with occur, because this
> simple implementation only takes the first line of the
> output, assuming it describes the contents which is true
> for occur, but not really true for grep-find. It only gives
> you the directory, so a proper implementation should be more
> clever about that, it should have a way to retrieve the relevant
> inputs from the target command.
>
> Another thing is that unlike occur it does not work seamlessly
> if you do grep-find in different directories, because the
> results are displayed as relative file names, so default-directory
> should be restored too.
>
> A proper implementation should restore the buffer local variables too
> in addition to the buffer contents.
>
>
>

Hi Tom,

works for me, great, thanks!

BTW needed a (require 'cl) still.

In cases where a plenty of occur-calls is done, maybe the discussion WRT to memory pertains?

Andreas