Re: Usability suggestion : completion for M-:

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> - if the indentation code always makes changes (e.g. because it cycles
>> through several possible indentation points), then completion is
>> never used.

> Can you post the code ? I have a similar setup, but I can't remember
> running into that particular problem before.

Because you don't use code written in languages where indentation is
significant, maybe? (e.g. Haskell and Python)

> The biggest issue I noticed with overloaded commands is that Emacs
> commands will inspect this-command. An overloaded command
> needs to adjust these sorts of variables so other code isn't adversely
> affected. Some parts of Emacs definitely don't appreciate the current
> command being a lambda either.

That's just a minor implementation issue, which wouldn't both us, since
we have control over the rest of the code as well.

>> - if the completion code only gets called when you repeat TAB, then
>> well... you have to repeat TAB to get to completion.
>> - if not, then you get surprising results when you do TAB C-n TAB C-n
>> ... intending to reindent a chunk of code and once of the lines
>> happens to be properly indented already and you end up
>> completing instead.
>> 
>> So it's not a satisfactory solution.

> I definitely have a different implementation that sounds more robust.
> I hit tab repeatedly and the result is always the same in regards to
> the behavior selected.
 
What's the behavior?  When does it indent and when does it complete?


        Stefan