Re: Add function to rotate/transpose all windows

[Emanuel Berg <incal@dataswamp.org>]

Charles Choi wrote:

> As a side note, I received an issue that a package that
> I had recently published on MELPA required a dependency on
> transpose-frame. Investigating further, it seems that
> transpose-frame was ad-hoc packaged and it is unclear who
> actually maintains this code.
>
> https://github.com/emacsorphanage/transpose-frame/blob/master/transpose-frame.el
>
> My observation is that what transpose-frame is trying to do
> is so useful, that it would nice to have such behavior be
> "built-in" to Emacs core. I am not saying that this package
> should be included "as-is" though. I leave it to the core
> team to determine how to best implement this behavior.

There is a lot of transpose already in core Emacs:

  transpose-chars
  transpose-lines
  transpose-paragraphs
  transpose-regions
  transpose-sentences
  transpose-sexps
  transpose-sexps-default-function
  transpose-subr
  transpose-subr-1
  transpose-words

Slime has a general list transposer:

(defun slime-transpose-lists (list-of-lists)
  (let ((ncols (length (car list-of-lists))))
    (cl-loop for col-index below ncols
             collect (cl-loop for row in list-of-lists
                              collect (elt row col-index)))))

And I have a transposer that works for nested elements, here:
  https://dataswamp.org/~incal/bad/class/elem/bad-rotate.el

-- 
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