Re: / (slash) command : fast way to temporarily change setting(s) to run a command

On 2019-04-16 02:48, Philippe Waroquiers wrote:
> On Mon, 2019-04-15 at 23:06 -0400, Simon Marchi wrote:
>> Hi Philippe,
>> 
>> I like the idea, I would probably use it most with /e (for long 
>> strings) and /p.
>> I just tried it a little bit, and I appreciate the fact that it's easy 
>> to apply
>> to your previous command.  Just type up and add the prefix to the 
>> beginning of the
>> line.
> Interesting, that was not the primary use case I was thinking to.
> 
> We could make this even easier by making COMMAND optional in:
>    Usage: /SETTING... [COMMAND]
> and giving no command means to repeat the previous command with the 
> additional
> given settings e.g. :
>     (gdb) some command
>     .... some command output
>     (gdb) /e
>         => executes /e some command
> 
>     (gdb) /e some command
>     ... some command output
>     (gdb) /p
>        => executes  /ep some command
> 
> I guess we probably call dont_repeat () in / command
> when no COMMAND is given.

Ah yeah, that sounds good too, I would be consistent with the fact that 
just like you can do:

(gdb) p 10
$4 = 10
(gdb) p/x
$5 = 0xa

Does it mean that as a side-effect, "/" alone would repeat the previos 
command unaltered?

Simon