Reserved s-= for my-calc-line (to avoid excessive typing of M-x my-calc-line). er/expand-region is now s-w to be near C-w/M-w.
--- a/.emacs-my Sun Jan 31 20:35:05 2021 +0200
+++ b/.emacs-my Wed Feb 03 12:32:49 2021 +0200
@@ -944,7 +944,7 @@
(setq x-select-enable-clipboard t))
(when (fboundp 'er/expand-region)
- (global-set-key (kbd "s-=") 'er/expand-region))
+ (global-set-key (kbd "s-w") 'er/expand-region))
(defun my-mark-line ()
"Mark current line."
@@ -1664,6 +1664,8 @@
(insert ?\ ))
(insert result)))))
+(global-set-key (kbd "s-=") #'my-calc-line)
+
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(message "rst, reStructuredText")