fish-shell/share/functions/fish_vi_key_bindings.fish
SeekingBlues cf620c829b Improve newline behavior of kill-whole-line
Previously, `kill-whole-line` kills the line and its following
newline. This is insufficient when we are on the last line, because
it would not actually clear the line. The cursor would stay on the
line, which is not the correct behavior for bindings like `dd`.

Also, `cc` in vi-mode used `kill-whole-line`, which is not correct
because it should not remove any newlines. We have to introduce
another special input function (`kill-inner-line`) to fix this.
2022-06-04 13:45:25 -07:00

310 lines
15 KiB
Fish

function fish_vi_key_bindings --description 'vi-like key bindings for fish'
if contains -- -h $argv
or contains -- --help $argv
echo "Sorry but this function doesn't support -h or --help" >&2
return 1
end
# Erase all bindings if not explicitly requested otherwise to
# allow for hybrid bindings.
# This needs to be checked here because if we are called again
# via the variable handler the argument will be gone.
set -l rebind true
if test "$argv[1]" = --no-erase
set rebind false
set -e argv[1]
else
bind --erase --all --preset # clear earlier bindings, if any
end
# Allow just calling this function to correctly set the bindings.
# Because it's a rather discoverable name, users will execute it
# and without this would then have subtly broken bindings.
if test "$fish_key_bindings" != fish_vi_key_bindings
and test "$rebind" = true
# Allow the user to set the variable universally.
set -q fish_key_bindings
or set -g fish_key_bindings
# This triggers the handler, which calls us again and ensures the user_key_bindings
# are executed.
set fish_key_bindings fish_vi_key_bindings
return
end
set -l init_mode insert
# These are only the special vi-style keys
# not end/home, we share those.
set -l eol_keys \$ g\$
set -l bol_keys \^ 0 g\^
if contains -- $argv[1] insert default visual
set init_mode $argv[1]
else if set -q argv[1]
# We should still go on so the bindings still get set.
echo "Unknown argument $argv" >&2
end
# Inherit shared key bindings.
# Do this first so vi-bindings win over default.
for mode in insert default visual
__fish_shared_key_bindings -s -M $mode
end
# Add a way to switch from insert to normal (command) mode.
# Note if we are paging, we want to stay in insert mode
# See #2871
bind -s --preset -M insert \e "if commandline -P; commandline -f cancel; else; set fish_bind_mode default; commandline -f backward-char repaint-mode; end"
# Default (command) mode
bind -s --preset :q exit
bind -s --preset -m insert \cc cancel-commandline repaint-mode
bind -s --preset -M default h backward-char
bind -s --preset -M default l forward-char
bind -s --preset -m insert \n execute
bind -s --preset -m insert \r execute
bind -s --preset -m insert o insert-line-under repaint-mode
bind -s --preset -m insert O insert-line-over repaint-mode
bind -s --preset -m insert i repaint-mode
bind -s --preset -m insert I beginning-of-line repaint-mode
bind -s --preset -m insert a forward-single-char repaint-mode
bind -s --preset -m insert A end-of-line repaint-mode
bind -s --preset -m visual v begin-selection repaint-mode
#bind -s --preset -m insert o "commandline -a \n" down-line repaint-mode
#bind -s --preset -m insert O beginning-of-line "commandline -i \n" up-line repaint-mode # doesn't work
bind -s --preset gg beginning-of-buffer
bind -s --preset G end-of-buffer
for key in $eol_keys
bind -s --preset $key end-of-line
end
for key in $bol_keys
bind -s --preset $key beginning-of-line
end
bind -s --preset u undo
bind -s --preset \cr redo
bind -s --preset [ history-token-search-backward
bind -s --preset ] history-token-search-forward
bind -s --preset k up-or-search
bind -s --preset j down-or-search
bind -s --preset b backward-word
bind -s --preset B backward-bigword
bind -s --preset ge backward-word
bind -s --preset gE backward-bigword
bind -s --preset w forward-word forward-single-char
bind -s --preset W forward-bigword forward-single-char
bind -s --preset e forward-single-char forward-word backward-char
bind -s --preset E forward-bigword backward-char
# Vi/Vim doesn't support these keys in insert mode but that seems silly so we do so anyway.
bind -s --preset -M insert -k home beginning-of-line
bind -s --preset -M default -k home beginning-of-line
bind -s --preset -M insert -k end end-of-line
bind -s --preset -M default -k end end-of-line
# Vi moves the cursor back if, after deleting, it is at EOL.
# To emulate that, move forward, then backward, which will be a NOP
# if there is something to move forward to.
bind -s --preset -M default x delete-char forward-single-char backward-char
bind -s --preset -M default X backward-delete-char
bind -s --preset -M insert -k dc delete-char forward-single-char backward-char
bind -s --preset -M default -k dc delete-char forward-single-char backward-char
# Backspace deletes a char in insert mode, but not in normal/default mode.
bind -s --preset -M insert -k backspace backward-delete-char
bind -s --preset -M default -k backspace backward-char
bind -s --preset -M insert \ch backward-delete-char
bind -s --preset -M default \ch backward-char
bind -s --preset -M insert \x7f backward-delete-char
bind -s --preset -M default \x7f backward-char
bind -s --preset -M insert -k sdc backward-delete-char # shifted delete
bind -s --preset -M default -k sdc backward-delete-char # shifted delete
bind -s --preset dd kill-whole-line
bind -s --preset D kill-line
bind -s --preset d\$ kill-line
bind -s --preset d\^ backward-kill-line
bind -s --preset d0 backward-kill-line
bind -s --preset dw kill-word
bind -s --preset dW kill-bigword
bind -s --preset diw forward-single-char forward-single-char backward-word kill-word
bind -s --preset diW forward-single-char forward-single-char backward-bigword kill-bigword
bind -s --preset daw forward-single-char forward-single-char backward-word kill-word
bind -s --preset daW forward-single-char forward-single-char backward-bigword kill-bigword
bind -s --preset de kill-word
bind -s --preset dE kill-bigword
bind -s --preset db backward-kill-word
bind -s --preset dB backward-kill-bigword
bind -s --preset dge backward-kill-word
bind -s --preset dgE backward-kill-bigword
bind -s --preset df begin-selection forward-jump kill-selection end-selection
bind -s --preset dt begin-selection forward-jump backward-char kill-selection end-selection
bind -s --preset dF begin-selection backward-jump kill-selection end-selection
bind -s --preset dT begin-selection backward-jump forward-single-char kill-selection end-selection
bind -s --preset dh backward-char delete-char
bind -s --preset dl delete-char
bind -s --preset di backward-jump-till and repeat-jump-reverse and begin-selection repeat-jump kill-selection end-selection
bind -s --preset da backward-jump and repeat-jump-reverse and begin-selection repeat-jump kill-selection end-selection
bind -s --preset 'd;' begin-selection repeat-jump kill-selection end-selection
bind -s --preset 'd,' begin-selection repeat-jump-reverse kill-selection end-selection
bind -s --preset -m insert s delete-char repaint-mode
bind -s --preset -m insert S kill-inner-line repaint-mode
bind -s --preset -m insert cc kill-inner-line repaint-mode
bind -s --preset -m insert C kill-line repaint-mode
bind -s --preset -m insert c\$ kill-line repaint-mode
bind -s --preset -m insert c\^ backward-kill-line repaint-mode
bind -s --preset -m insert c0 backward-kill-line repaint-mode
bind -s --preset -m insert cw kill-word repaint-mode
bind -s --preset -m insert cW kill-bigword repaint-mode
bind -s --preset -m insert ciw forward-single-char forward-single-char backward-word kill-word repaint-mode
bind -s --preset -m insert ciW forward-single-char forward-single-char backward-bigword kill-bigword repaint-mode
bind -s --preset -m insert caw forward-single-char forward-single-char backward-word kill-word repaint-mode
bind -s --preset -m insert caW forward-single-char forward-single-char backward-bigword kill-bigword repaint-mode
bind -s --preset -m insert ce kill-word repaint-mode
bind -s --preset -m insert cE kill-bigword repaint-mode
bind -s --preset -m insert cb backward-kill-word repaint-mode
bind -s --preset -m insert cB backward-kill-bigword repaint-mode
bind -s --preset -m insert cge backward-kill-word repaint-mode
bind -s --preset -m insert cgE backward-kill-bigword repaint-mode
bind -s --preset -m insert cf begin-selection forward-jump kill-selection end-selection repaint-mode
bind -s --preset -m insert ct begin-selection forward-jump backward-char kill-selection end-selection repaint-mode
bind -s --preset -m insert cF begin-selection backward-jump kill-selection end-selection repaint-mode
bind -s --preset -m insert cT begin-selection backward-jump forward-single-char kill-selection end-selection repaint-mode
bind -s --preset -m insert ch backward-char begin-selection kill-selection end-selection repaint-mode
bind -s --preset -m insert cl begin-selection kill-selection end-selection repaint-mode
bind -s --preset -m insert ci backward-jump-till and repeat-jump-reverse and begin-selection repeat-jump kill-selection end-selection repaint-mode
bind -s --preset -m insert ca backward-jump and repeat-jump-reverse and begin-selection repeat-jump kill-selection end-selection repaint-mode
bind -s --preset '~' togglecase-char forward-single-char
bind -s --preset gu downcase-word
bind -s --preset gU upcase-word
bind -s --preset J end-of-line delete-char
bind -s --preset K 'man (commandline -t) 2>/dev/null; or echo -n \a'
bind -s --preset yy kill-whole-line yank
bind -s --preset Y kill-whole-line yank
bind -s --preset y\$ kill-line yank
bind -s --preset y\^ backward-kill-line yank
bind -s --preset y0 backward-kill-line yank
bind -s --preset yw kill-word yank
bind -s --preset yW kill-bigword yank
bind -s --preset yiw forward-single-char forward-single-char backward-word kill-word yank
bind -s --preset yiW forward-single-char forward-single-char backward-bigword kill-bigword yank
bind -s --preset yaw forward-single-char forward-single-char backward-word kill-word yank
bind -s --preset yaW forward-single-char forward-single-char backward-bigword kill-bigword yank
bind -s --preset ye kill-word yank
bind -s --preset yE kill-bigword yank
bind -s --preset yb backward-kill-word yank
bind -s --preset yB backward-kill-bigword yank
bind -s --preset yge backward-kill-word yank
bind -s --preset ygE backward-kill-bigword yank
bind -s --preset yf begin-selection forward-jump kill-selection yank end-selection
bind -s --preset yt begin-selection forward-jump-till kill-selection yank end-selection
bind -s --preset yF begin-selection backward-jump kill-selection yank end-selection
bind -s --preset yT begin-selection backward-jump-till kill-selection yank end-selection
bind -s --preset yh backward-char begin-selection kill-selection yank end-selection
bind -s --preset yl begin-selection kill-selection yank end-selection
bind -s --preset yi backward-jump-till and repeat-jump-reverse and begin-selection repeat-jump kill-selection yank end-selection
bind -s --preset ya backward-jump and repeat-jump-reverse and begin-selection repeat-jump kill-selection yank end-selection
bind -s --preset f forward-jump
bind -s --preset F backward-jump
bind -s --preset t forward-jump-till
bind -s --preset T backward-jump-till
bind -s --preset ';' repeat-jump
bind -s --preset , repeat-jump-reverse
# in emacs yank means paste
# in vim p means paste *after* current character, so go forward a char before pasting
# also in vim, P means paste *at* current position (like at '|' with cursor = line),
# \ so there's no need to go back a char, just paste it without moving
bind -s --preset p forward-char yank
bind -s --preset P yank
bind -s --preset gp yank-pop
# same vim 'pasting' note as upper
bind -s --preset '"*p' forward-char "commandline -i ( xsel -p; echo )[1]"
bind -s --preset '"*P' "commandline -i ( xsel -p; echo )[1]"
#
# Lowercase r, enters replace_one mode
#
bind -s --preset -m replace_one r repaint-mode
bind -s --preset -M replace_one -m default '' delete-char self-insert backward-char repaint-mode
bind -s --preset -M replace_one -m default \r 'commandline -f delete-char; commandline -i \n; commandline -f backward-char; commandline -f repaint-mode'
bind -s --preset -M replace_one -m default \e cancel repaint-mode
#
# Uppercase R, enters replace mode
#
bind -s --preset -m replace R repaint-mode
bind -s --preset -M replace '' delete-char self-insert
bind -s --preset -M replace -m insert \r execute repaint-mode
bind -s --preset -M replace -m default \e cancel repaint-mode
# in vim (and maybe in vi), <BS> deletes the changes
# but this binding just move cursor backward, not delete the changes
bind -s --preset -M replace -k backspace backward-char
#
# visual mode
#
bind -s --preset -M visual h backward-char
bind -s --preset -M visual l forward-char
bind -s --preset -M visual k up-line
bind -s --preset -M visual j down-line
bind -s --preset -M visual b backward-word
bind -s --preset -M visual B backward-bigword
bind -s --preset -M visual ge backward-word
bind -s --preset -M visual gE backward-bigword
bind -s --preset -M visual w forward-word
bind -s --preset -M visual W forward-bigword
bind -s --preset -M visual e forward-word
bind -s --preset -M visual E forward-bigword
bind -s --preset -M visual o swap-selection-start-stop repaint-mode
bind -s --preset -M visual f forward-jump
bind -s --preset -M visual t forward-jump-till
bind -s --preset -M visual F backward-jump
bind -s --preset -M visual T backward-jump-till
for key in $eol_keys
bind -s --preset -M visual $key end-of-line
end
for key in $bol_keys
bind -s --preset -M visual $key beginning-of-line
end
bind -s --preset -M visual -m insert c kill-selection end-selection repaint-mode
bind -s --preset -M visual -m insert s kill-selection end-selection repaint-mode
bind -s --preset -M visual -m default d kill-selection end-selection repaint-mode
bind -s --preset -M visual -m default x kill-selection end-selection repaint-mode
bind -s --preset -M visual -m default X kill-whole-line end-selection repaint-mode
bind -s --preset -M visual -m default y kill-selection yank end-selection repaint-mode
bind -s --preset -M visual -m default '"*y' "fish_clipboard_copy; commandline -f end-selection repaint-mode"
bind -s --preset -M visual -m default '~' togglecase-selection end-selection repaint-mode
bind -s --preset -M visual -m default \cc end-selection repaint-mode
bind -s --preset -M visual -m default \e end-selection repaint-mode
# Make it easy to turn an unexecuted command into a comment in the shell history. Also, remove
# the commenting chars so the command can be further edited then executed.
bind -s --preset -M default \# __fish_toggle_comment_commandline
bind -s --preset -M visual \# __fish_toggle_comment_commandline
bind -s --preset -M replace \# __fish_toggle_comment_commandline
# Set the cursor shape
# After executing once, this will have defined functions listening for the variable.
# Therefore it needs to be before setting fish_bind_mode.
fish_vi_cursor
set fish_bind_mode $init_mode
end