Re: Intelligent stacking of messages in the echo area

[Juri Linkov]

> If two or more packages use the echo area for informational messages
> then often they fight each other, overwriting each other's messages.
>
> For example, in lisp mode eldoc is automatically enabled in my emacs
> 26.2 If I also turn on a paren mode which shows in the message area
> the matching part of a paren outside of the screen then eldoc often
> overwrites this message with its own documentation message.
>
> Maybe the echo area could be smarter and stack messages on top of each
> other if they come from diferent sources and they are close to each
> other in time.
>
> So in case of the above example, if a message comes from eldoc and
> parens at the same time in quick succession then the echo area could
> show both of them in two lines.
>
> And if the same source is sending multiple messsages or there is
> enough delay between two messages from different sources (e.g. 1-2
> seconds) then it would work as today using only a single line.

Please try to eval the following code in the current master.

It allows messages produced in quick succession to be stacked
in the echo area.

So for example when both show-paren-mode and eldoc want to show their
messages at the same time, the echo area shows both of them in two lines,
e.g.:

  No matching parenthesis found
  defun: (NAME ARGLIST &optional DOCSTRING DECL &rest BODY)

Caveat: it works best only when resize-mini-windows is at its default value
'grow-only'.

messages-stack.el
Description: application/emacs-lisp