562 lines
19 KiB
EmacsLisp
562 lines
19 KiB
EmacsLisp
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;;; mc-mark-more.el
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;; Copyright (C) 2012 Magnar Sveen
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;; Author: Magnar Sveen <magnars@gmail.com>
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;; Keywords: editing cursors
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This file contains functions to mark more parts of the buffer.
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;; See ./features/mark-more.feature for examples.
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;; Please see multiple-cursors.el for more commentary.
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;;; Code:
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(require 'multiple-cursors-core)
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(require 'thingatpt)
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(defun mc/cursor-end (cursor)
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(if (overlay-get cursor 'mark-active)
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(max (overlay-get cursor 'point)
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(overlay-get cursor 'mark))
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(overlay-get cursor 'point)))
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(defun mc/cursor-beg (cursor)
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(if (overlay-get cursor 'mark-active)
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(min (overlay-get cursor 'point)
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(overlay-get cursor 'mark))
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(overlay-get cursor 'point)))
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(defun mc/furthest-region-end ()
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(let ((end (max (mark) (point))))
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(mc/for-each-fake-cursor
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(setq end (max end (mc/cursor-end cursor))))
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end))
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(defun mc/first-region-start ()
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(let ((beg (min (mark) (point))))
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(mc/for-each-fake-cursor
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(setq beg (min beg (mc/cursor-beg cursor))))
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beg))
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(defun mc/furthest-cursor-before-point ()
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(let ((beg (min (mark) (point)))
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furthest)
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(mc/for-each-fake-cursor
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(when (< (mc/cursor-beg cursor) beg)
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(setq beg (mc/cursor-beg cursor))
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(setq furthest cursor)))
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furthest))
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(defun mc/furthest-cursor-after-point ()
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(let ((end (max (mark) (point)))
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furthest)
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(mc/for-each-fake-cursor
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(when (> (mc/cursor-end cursor) end)
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(setq end (mc/cursor-end cursor))
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(setq furthest cursor)))
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furthest))
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(defun mc/region-strings ()
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(let ((strings (list (buffer-substring-no-properties (point) (mark)))))
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(mc/for-each-fake-cursor
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(add-to-list 'strings (buffer-substring-no-properties
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(mc/cursor-beg cursor)
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(mc/cursor-end cursor))))
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strings))
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(defvar mc/enclose-search-term nil
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"How should mc/mark-more-* search for more matches?
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Match everything: nil
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Match only whole words: 'words
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Match only whole symbols: 'symbols
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Use like case-fold-search, don't recommend setting it globally.")
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(defun mc/mark-more-like-this (skip-last direction)
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(let ((case-fold-search nil)
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(re (regexp-opt (mc/region-strings) mc/enclose-search-term))
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(point-out-of-order (ecase direction
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(forwards (< (point) (mark)))
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(backwards (not (< (point) (mark))))))
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(furthest-cursor (ecase direction
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(forwards (mc/furthest-cursor-after-point))
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(backwards (mc/furthest-cursor-before-point))))
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(start-char (ecase direction
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(forwards (mc/furthest-region-end))
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(backwards (mc/first-region-start))))
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(search-function (ecase direction
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(forwards 'search-forward-regexp)
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(backwards 'search-backward-regexp)))
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(match-point-getter (ecase direction
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(forwards 'match-beginning)
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(backwards 'match-end))))
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(if (and skip-last (not furthest-cursor))
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(error "No cursors to be skipped")
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(mc/save-excursion
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(goto-char start-char)
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(when skip-last
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(mc/remove-fake-cursor furthest-cursor))
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(if (funcall search-function re nil t)
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(progn
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(push-mark (funcall match-point-getter 0))
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(when point-out-of-order
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(exchange-point-and-mark))
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(mc/create-fake-cursor-at-point))
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(error "no more matches found."))))))
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;;;###autoload
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(defun mc/mark-next-like-this (arg)
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"Find and mark the next part of the buffer matching the currently active region
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With negative ARG, delete the last one instead.
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With zero ARG, skip the last one and mark next."
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(interactive "p")
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(if (region-active-p)
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(if (< arg 0)
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(let ((cursor (mc/furthest-cursor-after-point)))
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(if cursor
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(mc/remove-fake-cursor cursor)
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(error "No cursors to be unmarked")))
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(mc/mark-more-like-this (= arg 0) 'forwards))
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(mc/mark-lines arg 'forwards))
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(mc/maybe-multiple-cursors-mode))
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;;;###autoload
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(defun mc/mark-next-word-like-this (arg)
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(interactive "p")
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(let ((mc/enclose-search-term 'words))
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(mc/mark-next-like-this arg)))
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;;;###autoload
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(defun mc/mark-next-symbol-like-this (arg)
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(interactive "p")
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(let ((mc/enclose-search-term 'symbols))
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(mc/mark-next-like-this arg)))
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;;;###autoload
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(defun mc/mark-previous-like-this (arg)
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"Find and mark the previous part of the buffer matching the currently active region
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With negative ARG, delete the last one instead.
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With zero ARG, skip the last one and mark next."
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(interactive "p")
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(if (region-active-p)
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(if (< arg 0)
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(let ((cursor (mc/furthest-cursor-before-point)))
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(if cursor
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(mc/remove-fake-cursor cursor)
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(error "No cursors to be unmarked")))
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(mc/mark-more-like-this (= arg 0) 'backwards))
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(mc/mark-lines arg 'backwards))
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(mc/maybe-multiple-cursors-mode))
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;;;###autoload
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(defun mc/mark-previous-word-like-this (arg)
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(interactive "p")
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(let ((mc/enclose-search-term 'words))
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(mc/mark-previous-like-this arg)))
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;;;###autoload
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(defun mc/mark-previous-symbol-like-this (arg)
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(interactive "p")
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(let ((mc/enclose-search-term 'symbols))
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(mc/mark-previous-like-this arg)))
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(defun mc/mark-lines (num-lines direction)
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(dotimes (i num-lines)
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(mc/create-fake-cursor-at-point)
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(ecase direction
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(forwards (loop do (next-logical-line 1 nil)
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while (mc/all-fake-cursors (point) (1+ (point)))))
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(backwards (loop do (previous-logical-line 1 nil)
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while (mc/all-fake-cursors (point) (1+ (point))))))))
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;;;###autoload
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(defun mc/mark-next-lines (arg)
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(interactive "p")
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(mc/mark-lines arg 'forwards)
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(mc/maybe-multiple-cursors-mode))
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;;;###autoload
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(defun mc/mark-previous-lines (arg)
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(interactive "p")
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(mc/mark-lines arg 'backwards)
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(mc/maybe-multiple-cursors-mode))
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;;;###autoload
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(defun mc/unmark-next-like-this ()
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"Deselect next part of the buffer matching the currently active region."
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(interactive)
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(mc/mark-next-like-this -1))
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;;;###autoload
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(defun mc/unmark-previous-like-this ()
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"Deselect prev part of the buffer matching the currently active region."
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(interactive)
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(mc/mark-previous-like-this -1))
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;;;###autoload
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(defun mc/skip-to-next-like-this ()
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"Skip the current one and select the next part of the buffer matching the currently active region."
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(interactive)
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(mc/mark-next-like-this 0))
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;;;###autoload
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(defun mc/skip-to-previous-like-this ()
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"Skip the current one and select the prev part of the buffer matching the currently active region."
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(interactive)
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(mc/mark-previous-like-this 0))
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;;;###autoload
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(defun mc/mark-all-like-this ()
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"Find and mark all the parts of the buffer matching the currently active region"
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(interactive)
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(unless (region-active-p)
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(error "Mark a region to match first."))
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(mc/remove-fake-cursors)
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(let ((master (point))
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(case-fold-search nil)
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(point-first (< (point) (mark)))
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(re (regexp-opt (mc/region-strings) mc/enclose-search-term)))
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(mc/save-excursion
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(goto-char 0)
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(while (search-forward-regexp re nil t)
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(push-mark (match-beginning 0))
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(when point-first (exchange-point-and-mark))
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(unless (= master (point))
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(mc/create-fake-cursor-at-point))
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(when point-first (exchange-point-and-mark)))))
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(if (> (mc/num-cursors) 1)
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(multiple-cursors-mode 1)
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(multiple-cursors-mode 0)))
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(defun mc--select-thing-at-point (thing)
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(let ((bound (bounds-of-thing-at-point thing)))
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(when bound
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(set-mark (car bound))
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(goto-char (cdr bound))
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bound)))
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(defun mc--select-thing-at-point-or-bark (thing)
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(unless (or (region-active-p) (mc--select-thing-at-point thing))
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(error "Mark a region or set cursor on a %s." thing)))
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;;;###autoload
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(defun mc/mark-all-words-like-this ()
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(interactive)
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(mc--select-thing-at-point-or-bark 'word)
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(let ((mc/enclose-search-term 'words))
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(mc/mark-all-like-this)))
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;;;###autoload
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(defun mc/mark-all-symbols-like-this ()
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(interactive)
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(mc--select-thing-at-point-or-bark 'symbol)
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(let ((mc/enclose-search-term 'symbols))
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(mc/mark-all-like-this)))
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;;;###autoload
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(defun mc/mark-all-in-region (beg end)
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"Find and mark all the parts in the region matching the given search"
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(interactive "r")
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(let ((search (read-from-minibuffer "Mark all in region: "))
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(case-fold-search nil))
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(if (string= search "")
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(message "Mark aborted")
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(progn
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(mc/remove-fake-cursors)
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(goto-char beg)
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(while (search-forward search end t)
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(push-mark (match-beginning 0))
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(mc/create-fake-cursor-at-point))
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(let ((first (mc/furthest-cursor-before-point)))
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(if (not first)
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(error "Search failed for %S" search)
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(mc/pop-state-from-overlay first)))
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(if (> (mc/num-cursors) 1)
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(multiple-cursors-mode 1)
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(multiple-cursors-mode 0))))))
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(when (not (fboundp 'set-temporary-overlay-map))
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;; Backport this function from newer emacs versions
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(defun set-temporary-overlay-map (map &optional keep-pred)
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"Set a new keymap that will only exist for a short period of time.
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The new keymap to use must be given in the MAP variable. When to
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remove the keymap depends on user input and KEEP-PRED:
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- if KEEP-PRED is nil (the default), the keymap disappears as
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soon as any key is pressed, whether or not the key is in MAP;
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- if KEEP-PRED is t, the keymap disappears as soon as a key *not*
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in MAP is pressed;
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- otherwise, KEEP-PRED must be a 0-arguments predicate that will
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decide if the keymap should be removed (if predicate returns
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nil) or kept (otherwise). The predicate will be called after
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each key sequence."
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(let* ((clearfunsym (make-symbol "clear-temporary-overlay-map"))
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(overlaysym (make-symbol "t"))
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(alist (list (cons overlaysym map)))
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(clearfun
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`(lambda ()
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(unless ,(cond ((null keep-pred) nil)
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((eq t keep-pred)
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`(eq this-command
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(lookup-key ',map
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(this-command-keys-vector))))
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(t `(funcall ',keep-pred)))
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(remove-hook 'pre-command-hook ',clearfunsym)
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(setq emulation-mode-map-alists
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(delq ',alist emulation-mode-map-alists))))))
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(set overlaysym overlaysym)
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(fset clearfunsym clearfun)
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(add-hook 'pre-command-hook clearfunsym)
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(push alist emulation-mode-map-alists))))
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;;;###autoload
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(defun mc/mark-more-like-this-extended ()
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"Like mark-more-like-this, but then lets you adjust with arrows key.
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The adjustments work like this:
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<up> Mark previous like this and set direction to 'up
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<down> Mark next like this and set direction to 'down
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If direction is 'up:
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<left> Skip past the cursor furthest up
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<right> Remove the cursor furthest up
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If direction is 'down:
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<left> Remove the cursor furthest down
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<right> Skip past the cursor furthest down
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The bindings for these commands can be changed. See `mc/mark-more-like-this-extended-keymap'."
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(interactive)
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|
(mc/mmlte--down)
|
||
|
|
(set-temporary-overlay-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 (= (line-number-at-pos (region-beginning))
|
||
|
|
(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 ">") (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/add-cursor-on-click (event)
|
||
|
|
"Add a cursor where you click."
|
||
|
|
(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))
|
||
|
|
(if (numberp (posn-point position))
|
||
|
|
(save-excursion
|
||
|
|
(goto-char (posn-point position))
|
||
|
|
(mc/create-fake-cursor-at-point)))
|
||
|
|
(mc/maybe-multiple-cursors-mode)))
|
||
|
|
|
||
|
|
;;;###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
|