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zsh/Functions/Zle/vi-pipe
Oliver Kiddle cb5f100bd3 39986, 39989: improve handling of vi-repeat-change
Save previous vi change and throw away a new change that fails.
Add zle -f vichange to allow shell widget to be a single change.
Fix repeat of command where numeric arguments were multiplied.
2016-11-20 23:59:48 +01:00

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# Example of a widget that takes a vi motion
# Filter part of buffer corresponding to a vi motion through an external
# program.
# To enable with vi compatible bindings use:
# autoload -Uz vi-pipe
# bindkey -a '!' vi-pipe
setopt localoptions noksharrays
autoload -Uz read-from-minibuffer
local _save_cut="$CUTBUFFER" REPLY
# mark this widget as a vi change so it can be repeated as a whole
zle -f vichange
# force movement to default to line mode
(( REGION_ACTIVE )) || zle -U V
# Use the standard vi-change to accept a vi motion.
zle .vi-change || return
read-from-minibuffer "!"
zle .vi-cmd-mode
local _save_cur=$CURSOR
# cut buffer contains the deleted text and can be modified
CUTBUFFER=$(eval "$REPLY" <<<"$CUTBUFFER")
# put the modified text back in position.
if [[ CURSOR -eq 0 || $BUFFER[CURSOR] = $'\n' ]]; then
# at the beginning of a line, vi-delete won't have moved the cursor
# back to a previous line
zle .vi-put-before -n 1
else
zle .vi-put-after -n 1
fi
# restore cut buffer and cursor to the start of the range
CUTBUFFER="$_save_cut" CURSOR="$_save_cur"