mirror of
git://git.code.sf.net/p/zsh/code
synced 2025-01-21 00:01:26 +01:00
64 lines
2.1 KiB
Text
64 lines
2.1 KiB
Text
# This set of functions implements a sort of magic history searching.
|
|
# After predict-on, typing characters causes the editor to look backward
|
|
# in the history for the first line beginning with what you have typed
|
|
# so far. After predict-off, editing returns to normal for the line found.
|
|
# In fact, you often don't even need to use predict-off, because if the
|
|
# line doesn't match something in the history, adding a key at the end
|
|
# behaves as normal --- though editing in the middle is liable to delete
|
|
# the rest of the line.
|
|
#
|
|
# To use it:
|
|
# autoload -U predict-on
|
|
# zle -N predict-on
|
|
# zle -N predict-off
|
|
# bindkey '...' predict-on
|
|
# bindkey '...' predict-off
|
|
# Note that all the functions are defined when you first call type the
|
|
# predict-on key, which means typing the predict-off key before that gives
|
|
# a harmless error message.
|
|
|
|
predict-on() {
|
|
zle -N self-insert insert-and-predict
|
|
zle -N magic-space insert-and-predict
|
|
zle -N backward-delete-char delete-backward-and-predict
|
|
}
|
|
predict-off() {
|
|
zle -A .self-insert self-insert
|
|
zle -A .magic-space magic-space
|
|
zle -A .backward-delete-char backward-delete-char
|
|
}
|
|
insert-and-predict () {
|
|
emulate -L zsh
|
|
if [[ ${RBUFFER[1]} = ${KEYS[-1]} ]]
|
|
then
|
|
# same as what's typed, just move on
|
|
((++CURSOR))
|
|
else
|
|
LBUFFER="$LBUFFER$KEYS"
|
|
if [[ $LASTWIDGET == (self-insert|magic-space|backward-delete-char) ]]
|
|
then
|
|
zle .history-beginning-search-backward || RBUFFER=""
|
|
fi
|
|
fi
|
|
return 0
|
|
}
|
|
delete-backward-and-predict() {
|
|
emulate -L zsh
|
|
if [[ -n "$LBUFFER" ]]
|
|
then
|
|
# If the last widget was e.g. a motion, then probably the intent is
|
|
# to actually edit the line, not change the search prefix.
|
|
if [[ $LASTWIDGET == (self-insert|magic-space|backward-delete-char) ]]
|
|
then
|
|
((--CURSOR))
|
|
zle .history-beginning-search-forward || RBUFFER=""
|
|
return 0
|
|
else
|
|
# Depending on preference, you might call "predict-off" here,
|
|
# and also set up forward deletions to turn off prediction.
|
|
LBUFFER="$LBUFFER[1,-2]"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
[[ -o kshautoload ]] || predict-on "$@"
|