emacs: stop polluting my kill-ring (still needs some adjustments)

pkgsets/emacs.nix

@@ -100,6 +100,65 @@ in rec {
 
       ;; Fix keyboard input of 'dead-keys'
       (require 'iso-transl)
+
+
+
+      ;; Some small helper functions
+      ;; These are based on the already existing 'kill' versions of the function
+      ;; It's literally just a M-x r-str kill delete (and getting rid of tabs)
+      (defun delete-word (arg)
+        "Delete characters forward until encountering the end of a word.
+      With argument ARG, do this that many times."
+        (interactive "p")
+        (delete-region (point) (progn (forward-word arg) (point))))
+      (define-key global-map [remap kill-word] 'delete-word)
+      ;; (define-key global-map (kbd <>) 'kill-word)
+
+      (defun backward-delete-word (arg)
+        "Delete characters backward until encountering the beginning of a word.
+      With argument ARG, do this that many times."
+        (interactive "p")
+        (delete-word (- arg)))
+      (define-key global-map [remap backward-kill-word] 'backward-delete-word)
+
+      (defun delete-whole-line (&optional arg)
+        "Delete current line.
+      With prefix ARG, delete that many lines starting from the current line.
+      If ARG is negative, delete backward.  Also delete the preceding newline.
+      \(This is meant to make \\[repeat] work well with negative arguments.)
+      If ARG is zero, delete current line but exclude the trailing newline."
+        (interactive "p")
+        (or arg (setq arg 1))
+        (if (and (> arg 0) (eobp) (save-excursion (forward-visible-line 0) (eobp)))
+            (signal 'end-of-buffer nil))
+        (if (and (< arg 0) (bobp) (save-excursion (end-of-visible-line) (bobp)))
+            (signal 'beginning-of-buffer nil))
+        (unless (eq last-command 'delete-region)
+          (delete-new "")
+          (setq last-command 'delete-region))
+        (cond ((zerop arg)
+         ;; We need to delete in two steps, because the previous command
+         ;; could have been a delete command, in which case the text
+         ;; before point needs to be prepended to the current delete
+         ;; ring entry and the text after point appended.  Also, we
+         ;; need to use save-excursion to avoid copying the same text
+         ;; twice to the delete ring in read-only buffers.
+         (save-excursion
+           (delete-region (point) (progn (forward-visible-line 0) (point))))
+         (delete-region (point) (progn (end-of-visible-line) (point))))
+        ((< arg 0)
+         (save-excursion
+           (delete-region (point) (progn (end-of-visible-line) (point))))
+         (delete-region (point)
+                (progn (forward-visible-line (1+ arg))
+                 (unless (bobp) (backward-char))
+                 (point))))
+        (t
+         (save-excursion
+           (delete-region (point) (progn (forward-visible-line 0) (point))))
+         (delete-region (point)
+                (progn (forward-visible-line arg) (point))))))
+      (define-key global-map [remap kill-whole-line] 'delete-whole-line)
     '';
   };