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;;; acdw-re.el -*- lexical-binding: t; coding: utf-8-unix -*-
;; Author: Case Duckworth <acdw@acdw.net>
;; Created: 2021-04-29
;; Keywords: configuration
;; URL: https://tildegit.org/acdw/emacs
;; This file is NOT part of GNU Emacs.
;;; License:
;; Everyone is permitted to do whatever with this software, without
;; limitation. This software comes without any warranty whatsoever,
;; but with two pieces of advice:
;; - Don't hurt yourself.
;; - Make good choices.
;;; Commentary:
;; Pulled mostly from karthinks:
;; https://karthinks.com/software/bridging-islands-in-emacs-1/
;;; Code:
(defvar acdw/re-builder-positions nil
"Store point and region bounds before calling re-builder")
(defun acdw/re-builder-save-state (&rest _)
"Save into `acdw/re-builder-positions' the point and region
positions before calling `re-builder'."
(setq acdw/re-builder-positions
(cons (point)
(when (region-active-p)
(list (region-beginning)
(region-end))))))
(defun reb-replace-regexp (&optional delimited)
"Run `query-replace-regexp' with the contents of re-builder. With
non-nil optional argument DELIMITED, only replace matches
surrounded by word boundaries."
(interactive "P")
(reb-update-regexp)
(let* ((re (reb-target-binding reb-regexp))
(replacement (query-replace-read-to
re
(concat "Query replace"
(if current-prefix-arg
(if (eq current-prefix-arg '-)
" backward"
" word")
"")
" regexp"
(if (with-selected-window reb-target-window
(region-active-p)) " in region" ""))
t))
(pnt (car acdw/re-builder-positions))
(beg (cadr acdw/re-builder-positions))
(end (caddr acdw/re-builder-positions)))
(with-selected-window reb-target-window
;; replace with (goto-char (match-beginning 0)) if you want to control
;; where in the buffer the replacement starts with re-builder
(goto-char pnt)
(setq acdw/re-builder-positions nil)
(reb-quit)
(query-replace-regexp re replacement delimited beg end))))
(provide 'acdw-re)
;;; acdw-re.el ends here
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