electric-indent-mode

[TobiasZawada]

Don't have much time. Have to work.

But, the following advice lets electric-indent-mode work more like intended:

(defun adocTZA-polymode-electric-indent-line (fun)
  "Give `electric-indent-post-self-insert-function' the right indentation.
This is an advice for `electric-indent-post-self-insert-function' as FUN."
  (let ((electric-indent-functions-without-reindent
	 (and
	  (memq pm--indent-line-function-original electric-indent-functions-without-reindent)
	  '(pm-indent-line-dispatcher))))
    (funcall fun)))

(advice-add 'electric-indent-post-self-insert-function :around #'adocTZA-polymode-electric-indent-line)

(Really sorry, that I cannot be of more help at the moment...)

Without the advice electric-indent-mode also indents the current line at newline in modes where it shouldn't. (It should only indent the newly created line.)
For examples of affected modes, see the current setting of electric-indent-functions-without-reindent.