Keybindings

Lem 2.0 keybindings

This is the full list of Lem 2.0 keybindings.

You can get this list in Lem itself with M-x documentation-describe-bindings (new after Lem 2.0).

The up to date list it to be found on Github: https://github.com/lem-project/lem/blob/main/docs/default-keybindings.md

Move

Note: this doesn’t list vi-mode keys.

Command	Key bindings	Documentation
next-line	C-n, Down	Move the cursor to next line.
next-logical-line		Move the cursor to the next logical line.
previous-line	C-p, Up	Move the cursor to the previous line.
previous-logical-line		Move the cursor to the previous logical line.
forward-char	C-f, Right	Move the cursor to the next character.
backward-char	C-b, Left	Move the cursor to the previous character.
move-to-beginning-of-buffer	M-<	Move the cursor to the beginning of the buffer.
move-to-end-of-buffer	M->	Move the cursor to the end of the buffer.
move-to-beginning-of-line	C-a, Home	Move the cursor to the beginning of the line.
move-to-beginning-of-logical-line		Move the cursor to the beginning of the logical line.
move-to-end-of-line	C-e, End	Move the cursor to the end of the line.
move-to-end-of-logical-line		Move the cursor to the end of the logical line.
next-page	C-v, PageDown	Move the cursor to the next page by one page.
previous-page	M-v, PageUp	Move the cursor to the previous page by one page.
next-page-char	C-x ]	Move the cursor to the next page character (^L).
previous-page-char	C-x [	Move the cursor to the previous page character (^L).
goto-line	M-g	Move the cursor to the specified line number.

Edit

Command	Key bindings	Documentation
self-insert		Insert the input character.
newline	Return	Insert a new line.
open-line	C-o	Insert a new line without moving the cursor position.
quoted-insert	C-q	Insert the next entered key (including control characters).
delete-next-char	C-d, Delete	Delete the next character.
delete-previous-char	C-h, Backspace	Delete the previous character.
copy-region	M-w	Copy the text of region.
copy-region-to-clipboard		Copy the selected text to the clipboard.
kill-region	C-w	Kill the text of region.
kill-region-to-clipboard		Kill the text of region and copy to the clipboard.
kill-line	C-k	Kill from the current cursor position to the end of the line.
kill-whole-line	C-Shift-Backspace	Kill the entire line and the remaining whitespace
yank	C-y	Paste the copied text.
yank-pop	M-y	Replaces the immediately pasted text with the next text in the killring.
yank-pop-next		Replaces the immediately preceding yank-pop text with the text before the kill ring.
yank-to-clipboard		Copy the text of the killring to the clipboard.
paste-from-clipboard		Inserts text from the clipboard.
entab-line		Replaces the indent of the current line from space to tab.
detab-line		Replaces the indent of the current line from tab to space.
delete-blank-lines	C-x C-o	Delete blank lines before and after the cursor.
just-one-space	M-Space	Combines consecutive whitespace before and after the cursor into one.
delete-indentation	M-^	Merge the current line with the previous line.
transpose-characters	C-t	Swaps the characters before and after the cursor.
undo	C-\	Undo.
redo	C-_, C-/	Redo.
delete-trailing-whitespace		Removes all end-of-line and end-of-buffer whitespace from the current buffer.

Mark

Command	Key bindings	Documentation
mark-set	C-@, C-Space	Sets a mark at the current cursor position.
exchange-point-mark	C-x C-x	Exchange the current cursor position with the marked position.
mark-set-whole-buffer	C-x h	Select the whole buffer as a region.

Word

Command	Key bindings	Documentation
forward-word	M-f, C-Right	Move to cursor to next word.
previous-word	M-b, C-Left	Move to cursor to previous word
delete-word	M-d, C-Delete	Delete the next word.
backward-delete-word	M-C-h, M-Backspace, C-Backspace	Delete the previous word.
downcase-region	C-x C-l	Replaces the selected region with a downcase.
uppercase-region	C-x C-u	Replaces the selected region with a uppercase.
capitalize-word	M-c	Replace the following word with capital-case.
lowercase-word	M-l	Replace the following word with lowercase.
uppercase-word	M-u	Replace the following word with uppercase.
forward-paragraph	M-}	Move cursor to forward paragraph.
backward-paragraph	M-{	Move cursor to backward paragraph.
kill-paragraph	M-k	Kill the forward paragraph.
count-words	M-=	Count the number of lines/words/characters in the buffer.

S-Expression

Command	Key bindings	Documentation
forward-sexp	M-C-f	Move the cursor to the forward expression.
backward-sexp	M-C-b	Move the cursor to the backward expression.
forward-list	M-C-n	Move the cursor to the forward list.
backward-list	M-C-p	Move the cursor to the backward list.
down-list	M-C-d	Move the cursor to the inner expression.
backward-up-list	M-C-u	Move the cursor to the outer expression.
mark-sexp	M-C-@, M-C-Space	Select the forward expression as a region.
kill-sexp	M-C-k	Kill the forward expression as a region.
transpose-sexps	M-C-t	Swaps the expression before and after the cursor.

File

Command	Key bindings	Documentation
find-file	C-x C-f	Open the file.
find-file-recursively		Open a file, from the list of all files present under the buffer’s direcotry, recursively.
read-file	C-x C-r	Open the file as a read-only.
save-current-buffer	C-x C-s	Saves the current buffer text to a file
write-file	C-x C-w	Saves the text in the current buffer to the specified file
write-region-file		Saves the region of text to the specified file
insert-file	C-x Tab	Inserts the contents of the file into the current buffer.
save-some-buffers	C-x s	Save some files in the open buffer.
revert-buffer		Restores the buffer. Normally this command will cause the contents of the file to be reflected in the buffer.
change-directory		Change directories associated with the buffer.

Project

Command	Key bindings	Documentation
project-find-file		Open a file, from the list of all files in this project.
project-root		Display this buffer’s project directory.
project-root-directory		Open this project’s root directory.
project-delete-buffers		Delete all this project’s buffers, except: if `delete-repl-buffer` is non t, we don’t delete the REPL buffer, if `delete-last-buffer` is non nil, we will delete the last buffer. This would cause Lem to exit.

Buffer

Command	Key bindings	Documentation
toggle-read-only	C-x C-q	Toggle the buffer read-only.
rename-buffer		Rename the buffer.
unmark-buffer	M-~	Remove the mark where the buffer was changed.

Window

Command	Key bindings	Documentation
select-buffer	C-x b	Switches to the selected buffer.
kill-buffer	C-x k	Delete buffer.
previous-buffer	C-x Left	Switches to the previous buffer.
next-buffer	C-x Right	Switches to the next buffer.
recenter	C-l	Scroll so that the cursor is in the middle.
split-active-window-vertically	C-x 2	Split the current window vertically.
split-active-window-horizontally	C-x 3	Split the current window horizontally.
other-window	C-x o, M-o	Go to the next window.
switch-to-last-focused-window		Go to the window that was last in focus.
window-move-down		Go to the window on the down.
window-move-up		Go to the window on the up.
window-move-right		Go to the window on the right.
window-move-left		Go to the window on the left.
delete-other-windows	C-x 1	Delete all other windows.
delete-active-window	C-x 0	Delete the active window.
quit-active-window		Quit the active window. This is a command for a popped-up window.
grow-window	C-x ^	Grow the window’s height.
shrink-window	C-x C-z	Shrink the window’s height.
grow-window-horizontally	C-x }	Grow the window’s width.
shrink-window-horizontally	C-x {	Shrink the window’s width.
scroll-down	C-Down, M-Down	Scroll down.
scroll-up	C-Up, M-Up	Scroll up.
find-file-other-window	C-x 4 f	Open a file in another window. Split the screen vertically if needed.
read-file-other-window	C-x 4 r	Read a file in another window.
select-buffer-other-window	C-x 4 b	Select a buffer in another window.
compare-windows

Multiple-Cursors

Command	Key bindings	Documentation
add-cursors-to-next-line	M-C	Duplicates the cursor under the currently existing cursors.

Process

Command	Key bindings	Documentation
filter-buffer	C-x #	Replaces the contents of the buffer with the result of executing the command entered.
pipe-command	C-x @	Run a command and displays the output.

Help

Command	Key bindings	Documentation
describe-key	C-x ?	Tell what is the command associated to a keybinding.
describe-bindings		Describe the bindings of the buffer’s current major mode.
list-modes		Output all available major and minor modes.
apropos-command		Find all symbols in the running Lisp image whose names match a given string.
lem-version		Display Lem’s version.

Font

Command	Key bindings	Documentation
font-size-increase	C-+	Make the font larger (this currently only works with SDL2 frontend)
font-size-decrease	C–	Make the font smaller (this currently only works with SDL2 frontend)

Other

Command	Key bindings	Documentation
nop-command	NopKey
undefined-key		Signal undefined key error.
keyboard-quit	C-g	Signal a `quit` condition.
escape	Escape	Signal a `quit` condition silently.
exit-lem	C-x C-c	Ask for modified buffers before exiting lem.
quick-exit		Exit the lem job and kill it.
execute-command	M-x	Read a command name, then read the ARG and call the command.
show-context-menu	Shift-F10, M-h
load-library		Load the Lisp library named NAME.