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zsh/Functions/Zle/delete-whole-word-match
2003-10-13 17:23:01 +00:00

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# Delete the entire word around the cursor. Does not handle
# a prefix argument; either the cursor is in the word or it isn't.
# The word may be just before the cursor, e.g.
# print this is a line
# ^ here
# and then the word before (i.e. `this') will be deleted.
#
# If the widget has the name `kill' in, the text deleted will be
# saved for future yanking in the normal way.
emulate -L zsh
setopt extendedglob
local curcontext=:zle:$WIDGET
local -a matched_words
# Start and end of range of characters to remove.
integer pos1 pos2
autoload -U match-words-by-style
match-words-by-style
if [[ -n "${matched_words[3]}" ]]; then
# There's whitespace before the cursor, so the word we are deleting
# starts at the cursor position.
pos1=$CURSOR
else
# No whitespace before us, so delete any wordcharacters there.
pos1="${#matched_words[1]}"
fi
if [[ -n "${matched_words[4]}" ]]; then
# There's whitespace at the cursor position, so only delete
# up to the cursor position.
pos2=$CURSOR
else
# No whitespace at the cursor position, so delete the
# current character and any following wordcharacters.
(( pos2 = CURSOR + ${#matched_words[5]} + 1 ))
fi
# Move the cursor then delete the block in one go for the
# purpose of undoing (and yanking, if appropriate).
(( CURSOR = pos1 ))
# If the widget name includes the word `kill', the removed
# text goes into the cutbuffer in the standard way.
if [[ $WIDGET = *kill* ]]; then
local word="${BUFFER[pos1+1,pos2-1]}"
if [[ $LASTWIDGET = *kill* ]]; then
CUTBUFFER="$CUTBUFFER$word"
else
killring=("$CUTBUFFER" "${(@)killring[1,-2]}")
CUTBUFFER=$word
fi
fi
BUFFER="${BUFFER[1,pos1]}${BUFFER[pos2,-1]}"