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| -rw-r--r-- | Functions/Zle/incarg | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Functions/Zle/incarg b/Functions/Zle/incarg new file mode 100644 index 000000000..c4b05d01f --- /dev/null +++ b/Functions/Zle/incarg @@ -0,0 +1,43 @@ +# Shell function to increment an integer either under the cursor or just +# to the left of it. Use +# autoload -U incarg +# zle -N incarg +# bindkey "..." incarg +# to define it. For example, +# echo 41 +# ^^^ cursor anywhere here +# with incarg gives +# echo 42 +# with the cursor in the same place. +# +# A numeric argument gives a number other than 1 to add (may be negative). +# If you're going to do it a lot with one particular number, you can set +# the parameter incarg to that number (a numeric argument still takes +# precedence). + +emulate -L zsh +setopt extendedglob + +local rrest lrest num + +rrest=${RBUFFER##[0-9]#} +if [[ $RBUFFER = [0-9]* ]]; then + if [[ -z $rrest ]]; then + num=$RBUFFER + else + num=${RBUFFER[1,-$#rrest-1]} + fi +fi + +lrest=${LBUFFER%%[0-9]#} +if [[ $LBUFFER = *[0-9] ]]; then + if [[ -z $lrest ]]; then + num="$LBUFFER$num" + else + num="${LBUFFER[$#lrest+1,-1]}$num" + fi +fi + +[[ -n $num ]] && (( num += ${NUMERIC:-${incarg:-1}} )) + +BUFFER="$lrest$num$rrest" |