regexp replace

[Emanuel Berg]

Hey, this idea is stupid, right, it shouldn't matter what
direction you go?

;;; -*- lexical-binding: t -*-
;;
;; this file:
;;   https://dataswamp.org/~incal/emacs-init/regexp.el

(require 'cl-lib)
(require 'dwim)

(defun replace-regexp-1 (re rep &optional beg end rev)
  (interactive
   `(,(read-string "regexp: ")
     ,(read-string "replace: ")
     ,@(use-region t)
     ,current-prefix-arg))
  (or beg (setq beg (point-min)))
  (or end (setq end (point-max)))
  (pcase-let ((`(,start ,sfun ,stop) (if rev
                                         (list end #'re-search-backward beg)
                                       (list beg #'re-search-forward end) )))
    (save-excursion
      (goto-char start)
      (let ((c 0))
        (while (apply sfun re stop '(t))
          (cl-incf c)
          (replace-match rep) )
        (message "matches replaced: %d" c) ))))

(defalias 'rr #'replace-regexp-1)

(provide 'regexp)

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