Re: C-c / r key-setting bug (?)

[Carsten Dominik <carsten.dominik@gmail.com>]

On Oct 21, 2010, at 4:11 PM, Andreas Röhler wrote:

> Am 21.10.2010 16:04, schrieb Carsten Dominik:
>>
>> On Oct 21, 2010, at 3:34 PM, Andreas Röhler wrote:
>>
>>> Am 21.10.2010 15:00, schrieb Carsten Dominik:
>>>>
>>>> On Oct 21, 2010, at 2:42 PM, Andreas Röhler wrote:
>>>>
>>>>> [ ... ]
>>>>>>>> C-c / will prompt for another key and then dispatch depending  
>>>>>>>> on
>>>>>>>> that
>>>>>>>> key.
>>>>>>>> Many do.
>>>>>>>
>>>>>>> Hmm, that would fit into the already mentioned coding-style  
>>>>>>> category.
>>>>>>> Is it wise to do it that way?
>>>>>>> For example M-x describe-mode fails telling about these keys.
>>>>>>> Are reasons for this?
>>>>>>
>>>>>> Yes. There are not enough keys, unless I introduce a larger  
>>>>>> number
>>>>>> of full-scale prefix keys. And it is much easier to remember  
>>>>>> just `C-c
>>>>>> /' and then get a friendly prompt for a number of options. For
>>>>>> interactive use, I think this is just perfect.
>>>>>>
>>>>>> Now, if you want to write programs based on these functions,  
>>>>>> then you
>>>>>> want to have the real command names. This is one of the reasons  
>>>>>> why I
>>>>>> like to have them in the manual, for look up.
>>>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> I'm following, thanks for the explanation.
>>>>> Remains a describe-mode bug than (?)
>>>>
>>>> I would not call it a bug. Describe-mode looks at the key maps, it
>>>> cannot look into the functions.
>>>>
>>>
>>> OK, but can't you make it known to the keymap?
>>
>> No, I cannot.
>>
>> - Carsten
>>
>>
>>
>>
>
> Ah, we can, I'm sure.
> Let's assume you assigned the same keys to different commands.
> Somehow Emacs must discriminate the states where the one or the  
> other are to use.
> So let's call these states modes, make a keymap for it, no?

Hi Andreas,

We could make C-c / a prefix and define the other commands in the
keymap of the prefix command.  But this would defeat the purpose of  
the dispatcher with its friendly prompt etc.

In fact, I do not want describe-mode to show all these.  I have  
thought carefully about this.

- Carsten