Emacs Lisp: Tip: Convert Regex to Lisp Regex String

Use emacs to Convert Regex to Elisp Regex String

There is a easy way to get the backslashes right.

• First, Alt + x list-matching-lines and enter a regex.
• Immediately do Alt + x repeat-complex-command.

The elisp string regex syntax will be shown in minibuffer. (with all correct backslashes if needed)