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+;;; mc-mark-more.el
+
+;; Copyright (C) 2012-2016 Magnar Sveen
+
+;; Author: Magnar Sveen <magnars@gmail.com>
+;; Keywords: editing cursors
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This file contains functions to mark more parts of the buffer.
+;; See ./features/mark-more.feature for examples.
+
+;; Please see multiple-cursors.el for more commentary.
+
+;;; Code:
+
+(require 'multiple-cursors-core)
+(require 'thingatpt)
+
+(defun mc/cursor-end (cursor)
+  (if (overlay-get cursor 'mark-active)
+      (max (overlay-get cursor 'point)
+           (overlay-get cursor 'mark))
+    (overlay-get cursor 'point)))
+
+(defun mc/cursor-beg (cursor)
+  (if (overlay-get cursor 'mark-active)
+      (min (overlay-get cursor 'point)
+           (overlay-get cursor 'mark))
+    (overlay-get cursor 'point)))
+
+(defun mc/furthest-region-end ()
+  (let ((end (max (mark) (point))))
+    (mc/for-each-fake-cursor
+     (setq end (max end (mc/cursor-end cursor))))
+    end))
+
+(defun mc/first-region-start ()
+  (let ((beg (min (mark) (point))))
+    (mc/for-each-fake-cursor
+     (setq beg (min beg (mc/cursor-beg cursor))))
+    beg))
+
+(defun mc/furthest-cursor-before-point ()
+  (let ((beg (if mark-active (min (mark) (point)) (point)))
+        furthest)
+    (mc/for-each-fake-cursor
+     (when (< (mc/cursor-beg cursor) beg)
+       (setq beg (mc/cursor-beg cursor))
+       (setq furthest cursor)))
+    furthest))
+
+(defun mc/furthest-cursor-after-point ()
+  (let ((end (if mark-active (max (mark) (point)) (point)))
+        furthest)
+    (mc/for-each-fake-cursor
+     (when (> (mc/cursor-end cursor) end)
+       (setq end (mc/cursor-end cursor))
+       (setq furthest cursor)))
+    furthest))
+
+(defun mc/fake-cursor-at-point (&optional point)
+  "Return the fake cursor with its point right at POINT (defaults
+to (point)), or nil."
+  (setq point (or point (point)))
+  (let ((cursors (mc/all-fake-cursors))
+        (c nil))
+    (catch 'found
+      (while (setq c (pop cursors))
+        (when (eq (marker-position (overlay-get c 'point))
+                  point)
+          (throw 'found c))))))
+
+(defun mc/region-strings ()
+  (let ((strings (list (buffer-substring-no-properties (point) (mark)))))
+    (mc/for-each-fake-cursor
+     (add-to-list 'strings (buffer-substring-no-properties
+                            (mc/cursor-beg cursor)
+                            (mc/cursor-end cursor))))
+    strings))
+
+(defvar mc/enclose-search-term nil
+  "How should mc/mark-more-* search for more matches?
+
+Match everything: nil
+Match only whole words: 'words
+Match only whole symbols: 'symbols
+
+Use like case-fold-search, don't recommend setting it globally.")
+
+(defun mc/mark-more-like-this (skip-last direction)
+  (let ((case-fold-search nil)
+        (re (regexp-opt (mc/region-strings) mc/enclose-search-term))
+        (point-out-of-order (cl-ecase direction
+                              (forwards       (< (point) (mark)))
+                              (backwards (not (< (point) (mark))))))
+        (furthest-cursor (cl-ecase direction
+                           (forwards  (mc/furthest-cursor-after-point))
+                           (backwards (mc/furthest-cursor-before-point))))
+        (start-char (cl-ecase direction
+                      (forwards  (mc/furthest-region-end))
+                      (backwards (mc/first-region-start))))
+        (search-function (cl-ecase direction
+                           (forwards  'search-forward-regexp)
+                           (backwards 'search-backward-regexp)))
+        (match-point-getter (cl-ecase direction
+                              (forwards 'match-beginning)
+                              (backwards 'match-end))))
+    (if (and skip-last (not furthest-cursor))
+        (error "No cursors to be skipped")
+      (mc/save-excursion
+       (goto-char start-char)
+       (when skip-last
+         (mc/remove-fake-cursor furthest-cursor))
+       (if (funcall search-function re nil t)
+           (progn
+             (push-mark (funcall match-point-getter 0))
+             (when point-out-of-order
+               (exchange-point-and-mark))
+             (mc/create-fake-cursor-at-point))
+         (user-error "no more matches found."))))))
+
+;;;###autoload
+(defun mc/mark-next-like-this (arg)
+  "Find and mark the next part of the buffer matching the currently active region
+If no region is active add a cursor on the next line
+With negative ARG, delete the last one instead.
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (if (< arg 0)
+      (let ((cursor (mc/furthest-cursor-after-point)))
+        (if cursor
+            (mc/remove-fake-cursor cursor)
+          (error "No cursors to be unmarked")))
+    (if (region-active-p)
+        (mc/mark-more-like-this (= arg 0) 'forwards)
+      (mc/mark-lines arg 'forwards)))
+  (mc/maybe-multiple-cursors-mode))
+
+;;;###autoload
+(defun mc/mark-next-like-this-word (arg)
+  "Find and mark the next part of the buffer matching the currently active region
+If no region is active, mark the word at the point and find the next match
+With negative ARG, delete the last one instead.
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (if (< arg 0)
+      (let ((cursor (mc/furthest-cursor-after-point)))
+        (if cursor
+            (mc/remove-fake-cursor cursor)
+          (error "No cursors to be unmarked")))
+    (if (region-active-p)
+        (mc/mark-more-like-this (= arg 0) 'forwards)
+      (mc--select-thing-at-point 'word)
+      (mc/mark-more-like-this (= arg 0) 'forwards)))
+  (mc/maybe-multiple-cursors-mode))
+
+(defun mc/mark-next-like-this-symbol (arg)
+  "Find and mark the next part of the buffer matching the currently active region
+If no region is active, mark the symbol at the point and find the next match
+With negative ARG, delete the last one instead.
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (if (< arg 0)
+      (let ((cursor (mc/furthest-cursor-after-point)))
+        (if cursor
+            (mc/remove-fake-cursor cursor)
+          (error "No cursors to be unmarked")))
+    (if (region-active-p)
+        (mc/mark-more-like-this (= arg 0) 'forwards)
+      (mc--select-thing-at-point 'symbol)
+      (mc/mark-more-like-this (= arg 0) 'forwards)))
+  (mc/maybe-multiple-cursors-mode))
+
+
+;;;###autoload
+(defun mc/mark-next-word-like-this (arg)
+  "Find and mark the next word of the buffer matching the currently active region
+The matching region must be a whole word to be a match
+If no region is active add a cursor on the next line
+With negative ARG, delete the last one instead.
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (let ((mc/enclose-search-term 'words))
+    (mc/mark-next-like-this arg)))
+
+;;;###autoload
+(defun mc/mark-next-symbol-like-this (arg)
+  "Find and mark the next symbol of the buffer matching the currently active region
+The matching region must be a whole symbol to be a match
+If no region is active add a cursor on the next line
+With negative ARG, delete the last one instead.
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (let ((mc/enclose-search-term 'symbols))
+    (mc/mark-next-like-this arg)))
+
+;;;###autoload
+(defun mc/mark-previous-like-this (arg)
+  "Find and mark the previous part of the buffer matching the
+currently active region.
+
+If no region is active ,add a cursor on the previous line.
+
+With negative ARG, delete the last one instead.
+
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (if (< arg 0)
+      (let ((cursor (mc/furthest-cursor-before-point)))
+        (if cursor
+            (mc/remove-fake-cursor cursor)
+          (error "No cursors to be unmarked")))
+    (if (region-active-p)
+        (mc/mark-more-like-this (= arg 0) 'backwards)
+      (mc/mark-lines arg 'backwards)))
+  (mc/maybe-multiple-cursors-mode))
+
+;;;###autoload
+(defun mc/mark-previous-like-this-word (arg)
+  "Find and mark the previous part of the buffer matching the
+currently active region.
+
+If no region is active, mark the word at the point and find the
+previous match.
+
+With negative ARG, delete the last one instead.
+
+With zero ARG, skip the last one and mark previous."
+  (interactive "p")
+  (if (< arg 0)
+      (let ((cursor (mc/furthest-cursor-after-point)))
+        (if cursor
+            (mc/remove-fake-cursor cursor)
+          (error "No cursors to be unmarked")))
+    (if (region-active-p)
+        (mc/mark-more-like-this (= arg 0) 'backwards)
+      (mc--select-thing-at-point 'word)
+      (mc/mark-more-like-this (= arg 0) 'backwards)))
+  (mc/maybe-multiple-cursors-mode))
+
+(defun mc/mark-previous-like-this-symbol (arg)
+  "Find and mark the previous part of the buffer matching the
+currently active region.
+
+If no region is active, mark the symbol at the point and find the
+previous match.
+
+With negative ARG, delete the last one instead.
+
+With zero ARG, skip the last one and mark previous."
+  (interactive "p")
+  (if (< arg 0)
+      (let ((cursor (mc/furthest-cursor-after-point)))
+        (if cursor
+            (mc/remove-fake-cursor cursor)
+          (error "No cursors to be unmarked")))
+    (if (region-active-p)
+        (mc/mark-more-like-this (= arg 0) 'backwards)
+      (mc--select-thing-at-point 'symbol)
+      (mc/mark-more-like-this (= arg 0) 'backwards)))
+  (mc/maybe-multiple-cursors-mode))
+
+
+;;;###autoload
+(defun mc/mark-previous-word-like-this (arg)
+  "Find and mark the previous part of the buffer matching the
+currently active region.
+
+The matching region must be a whole word to be a match.
+
+If no region is active, add a cursor on the previous line.
+
+With negative ARG, delete the last one instead.
+
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (let ((mc/enclose-search-term 'words))
+    (mc/mark-previous-like-this arg)))
+
+;;;###autoload
+(defun mc/mark-previous-symbol-like-this (arg)
+  "Find and mark the previous part of the buffer matching
+the currently active region.
+
+The matching region must be a whole symbol to be a match.
+
+If no region is active add a cursor on the previous line.
+
+With negative ARG, delete the last one instead.
+
+With zero ARG, skip the last one and mark next."
+  (interactive "p")
+  (let ((mc/enclose-search-term 'symbols))
+    (mc/mark-previous-like-this arg)))
+
+(defun mc/mark-lines (num-lines direction)
+  (dotimes (i (if (= num-lines 0) 1 num-lines))
+    (mc/save-excursion
+     (let ((furthest-cursor (cl-ecase direction
+                              (forwards  (mc/furthest-cursor-after-point))
+                              (backwards (mc/furthest-cursor-before-point)))))
+       (when (overlayp furthest-cursor)
+         (goto-char (overlay-get furthest-cursor 'point))
+         (when (= num-lines 0)
+           (mc/remove-fake-cursor furthest-cursor))))
+     (cl-ecase direction
+       (forwards (next-logical-line 1 nil))
+       (backwards (previous-logical-line 1 nil)))
+     (mc/create-fake-cursor-at-point))))
+
+;;;###autoload
+(defun mc/mark-next-lines (arg)
+  (interactive "p")
+  (mc/mark-lines arg 'forwards)
+  (mc/maybe-multiple-cursors-mode))
+
+;;;###autoload
+(defun mc/mark-previous-lines (arg)
+  (interactive "p")
+  (mc/mark-lines arg 'backwards)
+  (mc/maybe-multiple-cursors-mode))
+
+;;;###autoload
+(defun mc/unmark-next-like-this ()
+  "Deselect next part of the buffer matching the currently active region."
+  (interactive)
+  (mc/mark-next-like-this -1))
+
+;;;###autoload
+(defun mc/unmark-previous-like-this ()
+  "Deselect prev part of the buffer matching the currently active region."
+  (interactive)
+  (mc/mark-previous-like-this -1))
+
+;;;###autoload
+(defun mc/skip-to-next-like-this ()
+  "Skip the current one and select the next part of the buffer
+matching the currently active region."
+  (interactive)
+  (mc/mark-next-like-this 0))
+
+;;;###autoload
+(defun mc/skip-to-previous-like-this ()
+  "Skip the current one and select the prev part of the buffer
+matching the currently active region."
+  (interactive)
+  (mc/mark-previous-like-this 0))
+
+;;;###autoload
+(defun mc/mark-all-like-this ()
+  "Find and mark all the parts of the buffer matching the currently active region"
+  (interactive)
+  (unless (region-active-p)
+    (error "Mark a region to match first."))
+  (mc/remove-fake-cursors)
+  (let ((master (point))
+        (case-fold-search nil)
+        (point-first (< (point) (mark)))
+        (re (regexp-opt (mc/region-strings) mc/enclose-search-term)))
+    (mc/save-excursion
+     (goto-char 0)
+     (while (search-forward-regexp re nil t)
+       (push-mark (match-beginning 0))
+       (when point-first (exchange-point-and-mark))
+       (unless (= master (point))
+         (mc/create-fake-cursor-at-point))
+       (when point-first (exchange-point-and-mark)))))
+  (if (> (mc/num-cursors) 1)
+      (multiple-cursors-mode 1)
+    (mc/disable-multiple-cursors-mode)))
+
+(defun mc--select-thing-at-point (thing)
+  (let ((bound (bounds-of-thing-at-point thing)))
+    (when bound
+      (set-mark (car bound))
+      (goto-char (cdr bound))
+      bound)))
+
+(defun mc--select-thing-at-point-or-bark (thing)
+  (unless (or (region-active-p) (mc--select-thing-at-point thing))
+    (error "Mark a region or set cursor on a %s." thing)))
+
+;;;###autoload
+(defun mc/mark-all-words-like-this ()
+  (interactive)
+  (mc--select-thing-at-point-or-bark 'word)
+  (let ((mc/enclose-search-term 'words))
+    (mc/mark-all-like-this)))
+
+;;;###autoload
+(defun mc/mark-all-symbols-like-this ()
+  (interactive)
+  (mc--select-thing-at-point-or-bark 'symbol)
+  (let ((mc/enclose-search-term 'symbols))
+    (mc/mark-all-like-this)))
+
+;;;###autoload
+(defun mc/mark-all-in-region (beg end &optional search)
+  "Find and mark all the parts in the region matching the given search"
+  (interactive "r")
+  (let ((search (or search (read-from-minibuffer "Mark all in region: ")))
+        (case-fold-search nil))
+    (if (string= search "")
+        (message "Mark aborted")
+      (progn
+        (mc/remove-fake-cursors)
+        (goto-char beg)
+        (while (search-forward search end t)
+          (push-mark (match-beginning 0))
+          (mc/create-fake-cursor-at-point))
+        (let ((first (mc/furthest-cursor-before-point)))
+          (if (not first)
+              (error "Search failed for %S" search)
+            (mc/pop-state-from-overlay first)))
+        (if (> (mc/num-cursors) 1)
+            (multiple-cursors-mode 1)
+          (mc/disable-multiple-cursors-mode))))))
+
+;;;###autoload
+(defun mc/mark-all-in-region-regexp (beg end)
+  "Find and mark all the parts in the region matching the given regexp."
+  (interactive "r")
+  (let ((search (read-regexp "Mark regexp in region: "))
+        (case-fold-search nil))
+    (if (string= search "")
+        (message "Mark aborted")
+      (progn
+        (mc/remove-fake-cursors)
+        (goto-char beg)
+        (let ((lastmatch))
+          (while (and (< (point) end) ; can happen because of (forward-char)
+                      (search-forward-regexp search end t))
+            (push-mark (match-beginning 0))
+            (mc/create-fake-cursor-at-point)
+            (setq lastmatch (point))
+            (when (= (point) (match-beginning 0))
+              (forward-char)))
+          (unless lastmatch
+            (error "Search failed for %S" search)))
+        (goto-char (match-end 0))
+        (if (< (mc/num-cursors) 3)
+            (mc/disable-multiple-cursors-mode)
+          (mc/pop-state-from-overlay (mc/furthest-cursor-before-point))
+          (multiple-cursors-mode 1))))))
+
+(when (not (fboundp 'set-temporary-overlay-map))
+  ;; Backport this function from newer emacs versions
+  (defun set-temporary-overlay-map (map &optional keep-pred)
+    "Set a new keymap that will only exist for a short period of time.
+The new keymap to use must be given in the MAP variable. When to
+remove the keymap depends on user input and KEEP-PRED:
+
+- if KEEP-PRED is nil (the default), the keymap disappears as
+  soon as any key is pressed, whether or not the key is in MAP;
+
+- if KEEP-PRED is t, the keymap disappears as soon as a key *not*
+  in MAP is pressed;
+
+- otherwise, KEEP-PRED must be a 0-arguments predicate that will
+  decide if the keymap should be removed (if predicate returns
+  nil) or kept (otherwise). The predicate will be called after
+  each key sequence."
+
+    (let* ((clearfunsym (make-symbol "clear-temporary-overlay-map"))
+           (overlaysym (make-symbol "t"))
+           (alist (list (cons overlaysym map)))
+           (clearfun
+            `(lambda ()
+               (unless ,(cond ((null keep-pred) nil)
+                              ((eq t keep-pred)
+                               `(eq this-command
+                                    (lookup-key ',map
+                                                (this-command-keys-vector))))
+                              (t `(funcall ',keep-pred)))
+                 (remove-hook 'pre-command-hook ',clearfunsym)
+                 (setq emulation-mode-map-alists
+                       (delq ',alist emulation-mode-map-alists))))))
+      (set overlaysym overlaysym)
+      (fset clearfunsym clearfun)
+      (add-hook 'pre-command-hook clearfunsym)
+
+      (push alist emulation-mode-map-alists))))
+
+;;;###autoload
+(defun mc/mark-more-like-this-extended ()
+  "Like mark-more-like-this, but then lets you adjust with arrow keys.
+The adjustments work like this:
+
+   <up>    Mark previous like this and set direction to 'up
+   <down>  Mark next like this and set direction to 'down
+
+If direction is 'up:
+
+   <left>  Skip past the cursor furthest up
+   <right> Remove the cursor furthest up
+
+If direction is 'down:
+
+   <left>  Remove the cursor furthest down
+   <right> Skip past the cursor furthest down
+
+The bindings for these commands can be changed.
+See `mc/mark-more-like-this-extended-keymap'."
+  (interactive)
+  (mc/mmlte--down)
+  (set-transient-map mc/mark-more-like-this-extended-keymap t))
+
+(defvar mc/mark-more-like-this-extended-direction nil
+  "When using mc/mark-more-like-this-extended
+are we working on the next or previous cursors?")
+
+(make-variable-buffer-local 'mc/mark-more-like-this-extended)
+
+(defun mc/mmlte--message ()
+  (if (eq mc/mark-more-like-this-extended-direction 'up)
+      (message "<up> to mark previous, <left> to skip, <right> to remove, <down> to mark next")
+    (message "<down> to mark next, <right> to skip, <left> to remove, <up> to mark previous")))
+
+(defun mc/mmlte--up ()
+  (interactive)
+  (mc/mark-previous-like-this 1)
+  (setq mc/mark-more-like-this-extended-direction 'up)
+  (mc/mmlte--message))
+
+(defun mc/mmlte--down ()
+  (interactive)
+  (mc/mark-next-like-this 1)
+  (setq mc/mark-more-like-this-extended-direction 'down)
+  (mc/mmlte--message))
+
+(defun mc/mmlte--left ()
+  (interactive)
+  (if (eq mc/mark-more-like-this-extended-direction 'down)
+      (mc/unmark-next-like-this)
+    (mc/skip-to-previous-like-this))
+  (mc/mmlte--message))
+
+(defun mc/mmlte--right ()
+  (interactive)
+  (if (eq mc/mark-more-like-this-extended-direction 'up)
+      (mc/unmark-previous-like-this)
+    (mc/skip-to-next-like-this))
+  (mc/mmlte--message))
+
+(defvar mc/mark-more-like-this-extended-keymap (make-sparse-keymap))
+
+(define-key mc/mark-more-like-this-extended-keymap (kbd "<up>") 'mc/mmlte--up)
+(define-key mc/mark-more-like-this-extended-keymap (kbd "<down>") 'mc/mmlte--down)
+(define-key mc/mark-more-like-this-extended-keymap (kbd "<left>") 'mc/mmlte--left)
+(define-key mc/mark-more-like-this-extended-keymap (kbd "<right>") 'mc/mmlte--right)
+
+(defvar mc--restrict-mark-all-to-symbols nil)
+
+;;;###autoload
+(defun mc/mark-all-like-this-dwim (arg)
+  "Tries to guess what you want to mark all of.
+Can be pressed multiple times to increase selection.
+
+With prefix, it behaves the same as original `mc/mark-all-like-this'"
+  (interactive "P")
+  (if arg
+      (mc/mark-all-like-this)
+    (if (and (not (use-region-p))
+             (derived-mode-p 'sgml-mode)
+             (mc--on-tag-name-p))
+        (mc/mark-sgml-tag-pair)
+      (let ((before (mc/num-cursors)))
+        (unless (eq last-command 'mc/mark-all-like-this-dwim)
+          (setq mc--restrict-mark-all-to-symbols nil))
+        (unless (use-region-p)
+          (mc--mark-symbol-at-point)
+          (setq mc--restrict-mark-all-to-symbols t))
+        (if mc--restrict-mark-all-to-symbols
+            (mc/mark-all-symbols-like-this-in-defun)
+          (mc/mark-all-like-this-in-defun))
+        (when (<= (mc/num-cursors) before)
+          (if mc--restrict-mark-all-to-symbols
+              (mc/mark-all-symbols-like-this)
+            (mc/mark-all-like-this)))
+        (when (<= (mc/num-cursors) before)
+          (mc/mark-all-like-this))))))
+
+;;;###autoload
+(defun mc/mark-all-dwim (arg)
+  "Tries even harder to guess what you want to mark all of.
+
+If the region is active and spans multiple lines, it will behave
+as if `mc/mark-all-in-region'. With the prefix ARG, it will call
+`mc/edit-lines' instead.
+
+If the region is inactive or on a single line, it will behave like
+`mc/mark-all-like-this-dwim'."
+  (interactive "P")
+  (if (and (use-region-p)
+           (not (> (mc/num-cursors) 1))
+           (not (= (mc/line-number-at-pos (region-beginning))
+                   (mc/line-number-at-pos (region-end)))))
+      (if arg
+          (call-interactively 'mc/edit-lines)
+        (call-interactively 'mc/mark-all-in-region))
+    (progn
+      (setq this-command 'mc/mark-all-like-this-dwim)
+      (mc/mark-all-like-this-dwim arg))))
+
+(defun mc--in-defun ()
+  (bounds-of-thing-at-point 'defun))
+
+;;;###autoload
+(defun mc/mark-all-like-this-in-defun ()
+  "Mark all like this in defun."
+  (interactive)
+  (if (mc--in-defun)
+      (save-restriction
+        (widen)
+        (narrow-to-defun)
+        (mc/mark-all-like-this))
+    (mc/mark-all-like-this)))
+
+;;;###autoload
+(defun mc/mark-all-words-like-this-in-defun ()
+  "Mark all words like this in defun."
+  (interactive)
+  (mc--select-thing-at-point-or-bark 'word)
+  (if (mc--in-defun)
+      (save-restriction
+        (widen)
+        (narrow-to-defun)
+        (mc/mark-all-words-like-this))
+    (mc/mark-all-words-like-this)))
+
+;;;###autoload
+(defun mc/mark-all-symbols-like-this-in-defun ()
+  "Mark all symbols like this in defun."
+  (interactive)
+  (mc--select-thing-at-point-or-bark 'symbol)
+  (if (mc--in-defun)
+      (save-restriction
+        (widen)
+        (narrow-to-defun)
+        (mc/mark-all-symbols-like-this))
+    (mc/mark-all-symbols-like-this)))
+
+(defun mc--mark-symbol-at-point ()
+  "Select the symbol under cursor"
+  (interactive)
+  (when (not (use-region-p))
+    (let ((b (bounds-of-thing-at-point 'symbol)))
+      (goto-char (car b))
+      (set-mark (cdr b)))))
+
+(defun mc--get-nice-sgml-context ()
+  (car
+   (last
+    (progn
+      (when (looking-at "<") (forward-char 1))
+      (when (looking-back ">" 100) (forward-char -1))
+      (sgml-get-context)))))
+
+(defun mc--on-tag-name-p ()
+  (let* ((context (save-excursion (mc--get-nice-sgml-context)))
+         (tag-name-len (length (aref context 4)))
+         (beg (aref context 2))
+         (end (+ beg tag-name-len (if (eq 'open (aref context 1)) 1 3))))
+    (and context
+         (>= (point) beg)
+         (<= (point) end))))
+
+;;;###autoload
+(defun mc/toggle-cursor-on-click (event)
+  "Add a cursor where you click, or remove a fake cursor that is
+already there."
+  (interactive "e")
+  (mouse-minibuffer-check event)
+  ;; Use event-end in case called from mouse-drag-region.
+  ;; If EVENT is a click, event-end and event-start give same value.
+  (let ((position (event-end event)))
+    (if (not (windowp (posn-window position)))
+        (error "Position not in text area of window"))
+    (select-window (posn-window position))
+    (let ((pt (posn-point position)))
+      (if (numberp pt)
+          ;; is there a fake cursor with the actual *point* right where we are?
+          (let ((existing (mc/fake-cursor-at-point pt)))
+            (if existing
+                (mc/remove-fake-cursor existing)
+              (save-excursion
+                (goto-char pt)
+                (mc/create-fake-cursor-at-point))))))
+    (mc/maybe-multiple-cursors-mode)))
+
+;;;###autoload
+(defalias 'mc/add-cursor-on-click 'mc/toggle-cursor-on-click)
+
+;;;###autoload
+(defun mc/mark-sgml-tag-pair ()
+  "Mark the tag we're in and its pair for renaming."
+  (interactive)
+  (when (not (mc--inside-tag-p))
+    (error "Place point inside tag to rename."))
+  (let ((context (mc--get-nice-sgml-context)))
+    (if (looking-at "</")
+        (setq context (car (last (sgml-get-context)))))
+    (goto-char (aref context 2))
+    (let* ((tag-name (aref context 4))
+           (num-chars (length tag-name))
+           (master-start (1+ (point)))
+           (mirror-end (save-excursion
+                         (sgml-skip-tag-forward 1)
+                         (1- (point)))))
+      (goto-char (- mirror-end num-chars))
+      (set-mark mirror-end)
+      (mc/create-fake-cursor-at-point)
+      (goto-char master-start)
+      (set-mark (+ (point) num-chars))))
+  (mc/maybe-multiple-cursors-mode))
+
+(defun mc--inside-tag-p ()
+  (save-excursion
+    (not (null (sgml-get-context)))))
+
+(provide 'mc-mark-more)
+
+;;; mc-mark-more.el ends here