;;; rect.el --- rectangle functions for GNU Emacs -*- lexical-binding:t -*-
-;; Copyright (C) 1985, 1999-2015 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1999-2016 Free Software Foundation, Inc.
;; Maintainer: Didier Verna <didier@xemacs.org>
;; Keywords: internal
(apply-on-rectangle 'extract-rectangle-line start end lines)
(nreverse (cdr lines))))
+(defun extract-rectangle-bounds (start end)
+ "Return the bounds of the rectangle with corners at START and END.
+Return it as a list of (START . END) positions, one for each line of
+the rectangle."
+ (let (bounds)
+ (apply-on-rectangle
+ (lambda (startcol endcol)
+ (move-to-column startcol)
+ (push (cons (prog1 (point) (move-to-column endcol)) (point))
+ bounds))
+ start end)
+ (nreverse bounds)))
+
(defvar killed-rectangle nil
"Rectangle for `yank-rectangle' to insert.")
(defun delete-whitespace-rectangle-line (startcol _endcol fill)
(when (= (move-to-column startcol (if fill t 'coerce)) startcol)
(unless (= (point) (point-at-eol))
- (delete-region (point) (progn (skip-syntax-forward " ") (point))))))
+ (delete-region (point) (progn (skip-syntax-forward " " (point-at-eol))
+ (point))))))
;;;###autoload
(defalias 'close-rectangle 'delete-whitespace-rectangle) ;; Old name
"Delete all whitespace following a specified column in each line.
The left edge of the rectangle specifies the position in each line
at which whitespace deletion should begin. On each line in the
-rectangle, all continuous whitespace starting at that column is deleted.
+rectangle, all contiguous whitespace starting at that column is deleted.
When called from a program the rectangle's corners are START and END.
With a prefix (or a FILL) argument, also fill too short lines."
(defun rectangle--space-to (col)
(propertize " " 'display `(space :align-to ,col)))
-(defface rectangle-preview-face '((t :inherit region))
- "The face to use for the `string-rectangle' preview.")
+(defface rectangle-preview '((t :inherit region))
+ "The face to use for the `string-rectangle' preview."
+ :version "25.1")
(defcustom rectangle-preview t
"If non-nil, `string-rectangle' will show an-the-fly preview."
+ :version "25.1"
:type 'boolean)
(defun rectangle--string-preview ()
- (let ((str (minibuffer-contents)))
- (when (equal str "")
- (setq str (or (car-safe minibuffer-default)
- (if (stringp minibuffer-default) minibuffer-default))))
- (when str (setq str (propertize str 'face 'region)))
- (with-selected-window rectangle--string-preview-window
- (unless (or (null rectangle--string-preview-state)
- (equal str (car rectangle--string-preview-state)))
- (rectangle--string-flush-preview)
- (apply-on-rectangle
- (lambda (startcol endcol)
- (let* ((sc (move-to-column startcol))
- (start (if (<= sc startcol) (point)
- (forward-char -1)
- (setq sc (current-column))
- (point)))
- (ec (move-to-column endcol))
- (end (point))
- (ol (make-overlay start end)))
- (push ol (nthcdr 3 rectangle--string-preview-state))
- ;; FIXME: The extra spacing doesn't interact correctly with
- ;; the extra spacing added by the rectangular-region-highlight.
- (when (< sc startcol)
- (overlay-put ol 'before-string (rectangle--space-to startcol)))
- (let ((as (when (< endcol ec)
- ;; (rectangle--space-to ec)
- (spaces-string (- ec endcol))
- )))
- (if (= start end)
- (overlay-put ol 'after-string (if as (concat str as) str))
- (overlay-put ol 'display str)
- (if as (overlay-put ol 'after-string as))))))
- (nth 1 rectangle--string-preview-state)
- (nth 2 rectangle--string-preview-state))))))
+ (when rectangle-preview
+ (let ((str (minibuffer-contents)))
+ (when (equal str "")
+ (setq str (or (car-safe minibuffer-default)
+ (if (stringp minibuffer-default) minibuffer-default))))
+ (when str (setq str (propertize str 'face 'rectangle-preview)))
+ (with-selected-window rectangle--string-preview-window
+ (unless (or (null rectangle--string-preview-state)
+ (equal str (car rectangle--string-preview-state)))
+ (rectangle--string-flush-preview)
+ (apply-on-rectangle
+ (lambda (startcol endcol)
+ (let* ((sc (move-to-column startcol))
+ (start (if (<= sc startcol) (point)
+ (forward-char -1)
+ (setq sc (current-column))
+ (point)))
+ (ec (move-to-column endcol))
+ (end (point))
+ (ol (make-overlay start end)))
+ (push ol (nthcdr 3 rectangle--string-preview-state))
+ ;; FIXME: The extra spacing doesn't interact correctly with
+ ;; the extra spacing added by the rectangular-region-highlight.
+ (when (< sc startcol)
+ (overlay-put ol 'before-string (rectangle--space-to startcol)))
+ (let ((as (when (< endcol ec)
+ ;; (rectangle--space-to ec)
+ (spaces-string (- ec endcol))
+ )))
+ (if (= start end)
+ (overlay-put ol 'after-string (if as (concat str as) str))
+ (overlay-put ol 'display str)
+ (if as (overlay-put ol 'after-string as))))))
+ (nth 1 rectangle--string-preview-state)
+ (nth 2 rectangle--string-preview-state)))))))
;; FIXME: Should this be turned into inhibit-region-highlight and made to apply
;; to non-rectangular regions as well?
#'rectangle--string-erase-preview nil t)
(add-hook 'post-command-hook
#'rectangle--string-preview nil t))
- (read-string (format "String rectangle (default %s): "
- (or (car string-rectangle-history) ""))
- nil 'string-rectangle-history
+ (read-string (format "String rectangle (default %s): "
+ (or (car string-rectangle-history) ""))
+ nil 'string-rectangle-history
(car string-rectangle-history)))))))
+ ;; If we undo this change, we want to have the point back where we
+ ;; are now, and not after the first line in the rectangle (which is
+ ;; the first line to be changed by the following command).
+ (unless (eq buffer-undo-list t)
+ (push (point) buffer-undo-list))
(goto-char
(apply-on-rectangle 'string-rectangle-line start end string t)))
#'rectangle--unhighlight-for-redisplay)
(add-function :around region-extract-function
#'rectangle--extract-region)
+(add-function :around region-insert-function
+ #'rectangle--insert-region)
(defvar rectangle-mark-mode-map
(let ((map (make-sparse-keymap)))
(defun rectangle--extract-region (orig &optional delete)
- (if (not rectangle-mark-mode)
- (funcall orig delete)
+ (cond
+ ((not rectangle-mark-mode)
+ (funcall orig delete))
+ ((eq delete 'bounds)
+ (extract-rectangle-bounds (region-beginning) (region-end)))
+ (t
(let* ((strs (funcall (if delete
#'delete-extract-rectangle
#'extract-rectangle)
(put-text-property 0 (length str) 'yank-handler
`(rectangle--insert-for-yank ,strs t)
str)
- str))))
+ str)))))
+
+(defun rectangle--insert-region (orig strings)
+ (cond
+ ((not rectangle-mark-mode)
+ (funcall orig strings))
+ (t
+ (funcall #'insert-rectangle strings))))
(defun rectangle--insert-for-yank (strs)
(push (point) buffer-undo-list)