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Split multiline kill-ring entry over cursors when num lines match

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This commit is contained in:
Magnar Sveen 2012-09-23 18:36:33 +02:00
parent 7a655b0c0b
commit 067063a346
2 changed files with 63 additions and 6 deletions
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23
features/multiple-cursors-core.feature
View File

@ -131,3 +131,26 @@ Feature: Multiple cursors core
contains
twice
"""
Scenario: Split multiline kill-ring entry over cursors when num lines match
When I insert:
"""
a
b
c
"""
And I go to the front of the word "a"
And I press "C-SPC"
And I go to the end of the word "c"
And I press "M-w"
And I go to the end of the word "a"
And I press "H-SPC"
And I press "C-n"
And I press "C-n"
And I press "C-y"
Then I should see:
"""
aa
bb
cc
"""

46
multiple-cursors-core.el
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@ -62,11 +62,17 @@
(save-excursion ,@forms)
(mc/pop-state-from-overlay current-state)))
(defmacro mc/for-each-cursor (&rest forms)
(defun mc--compare-by-overlay-start (o1 o2)
(< (overlay-start o1) (overlay-start o2)))
(defmacro mc/for-each-cursor-ordered (&rest forms)
"Runs the body for each cursor, fake and real, bound to the name cursor"
`(let ((real-cursor (mc/create-fake-cursor-at-point)))
(mc/for-each-fake-cursor ,@forms)
(mc/remove-fake-cursor real-cursor)))
(mapc #'(lambda (cursor)
(when (mc/fake-cursor-p cursor)
,@forms))
(sort (overlays-in (point-min) (point-max)) 'mc--compare-by-overlay-start))
(mc/pop-state-from-overlay real-cursor)))
(defmacro mc/save-window-scroll (&rest forms)
"Saves and restores the window scroll position"
@ -177,6 +183,8 @@ Saves the current state in the overlay to be restored later."
(call-interactively cmd))
(when deactivate-mark (deactivate-mark)))
(defvar mc--executing-command-for-fake-cursor nil)
(defun mc/execute-command-for-all-fake-cursors (cmd)
"Calls CMD interactively for each cursor.
It works by moving point to the fake cursor, setting
@ -187,7 +195,8 @@ cursor with updated info."
(mc/save-window-scroll
(mc/for-each-fake-cursor
(save-excursion
(let ((id (overlay-get cursor 'mc-id))
(let ((mc--executing-command-for-fake-cursor t)
(id (overlay-get cursor 'mc-id))
(annoying-arrows-mode nil))
(mc/add-fake-cursor-to-undo-list
(mc/pop-state-from-overlay cursor)
@ -301,13 +310,38 @@ multiple cursors editing.")
(setq entries (cdr entries)))
all-equal))
(defun mc--maybe-consolidate-kill-rings ()
(defun mc--kill-ring-entries ()
(let (entries)
(mc/for-each-cursor
(mc/for-each-cursor-ordered
(setq entries (cons (car (overlay-get cursor 'kill-ring)) entries)))
(reverse entries)))
(defun mc--maybe-consolidate-kill-rings ()
(let ((entries (mc--kill-ring-entries)))
(unless (mc--all-equal entries)
(kill-new (mapconcat 'identity entries "\n")))))
(defun mc--kill-new (entries)
(mc/for-each-cursor-ordered
(let ((kill-ring (overlay-get cursor 'kill-ring))
(kill-ring-yank-pointer (overlay-get cursor 'kill-ring-yank-pointer)))
(kill-new (car entries))
(setq entries (cdr entries))
(overlay-put cursor 'kill-ring kill-ring)
(overlay-put cursor 'kill-ring-yank-pointer kill-ring-yank-pointer))))
(defun mc--maybe-split-kill-ring ()
(let ((entries (mc--kill-ring-entries)))
(when (mc--all-equal entries)
(let ((lines (split-string (car entries) "\n")))
(when (= (mc/num-cursors) (length lines))
(mc--kill-new lines))))))
(defadvice yank (before maybe-split-kill-ring activate)
(when (and (or multiple-cursors-mode rectangular-region-mode)
(not mc--executing-command-for-fake-cursor))
(mc--maybe-split-kill-ring)))
(define-minor-mode multiple-cursors-mode
"Mode while multiple cursors are active."
nil " mc" mc/keymap