Re: dynamic prompt

[Stefan Monnier]

>> > I'd like to have a prompt that shows the number of characters entered
>> > in the response
>> > Prompt (3): bla
>> > Prompt (7): bla bla
>> > Is that in any way possible?
>> Of course: the prompt is normal text present in the (mini)buffer, which
>> itself is a perfectly normal buffer (tho displayed in a special
>> (mini)window) and you can edit it like any other buffer text.
> I suspect he wants the character count to be updated automatically.

Of course.  But that can use any of the standard hooks for that:
post-command-hook or after-change-functions.

> Seems like he needs to enable a hook when he goes into the mini-buffer, 
> that modifies the prompt after each command.

minibuffer-setup-hook should do the trick, or minibuffer-with-setup-hook
depending on whether he wants it in one particular case or in all cases.


        Stefan