[分享] 在 mini-buffer 里输入 rx expression 而不是 regexp

Emacs-general
1

贴上代码：

(defun mk/minibuffer-read-rx-expresion-to-regexp ()
  "Read rx expression and inert the converted regexp into the current minibuffer"
  (interactive)
  (insert (rx-to-string (read--expression "Enter expression: " "(seq )"))))
  
(define-key minibuffer-local-map (kbd "C-r") #'mk/minibuffer-read-rx-expresion-to-regexp)

rx expression 比 regexp 更加直观，因此我想在 mini-buffer 也输入 rx expression 例子：

(rx bol "El" (or "Psy" "Kongaroo") eol)
=> "^El\\(?:Kongaroo\\|Psy\\)$"

关于 rx 的更多内容请阅读： (info “(elisp) Rx Notation”)

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