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config update | add toggle [ qalc ] #1

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75 changes: 44 additions & 31 deletions zsh-calc.zsh
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Original file line number Diff line number Diff line change
@@ -1,51 +1,64 @@
if [[ -z $CALC_CMD ]]; then
for cmd in qalc calc bc;do
command -v $cmd >/dev/null 2>&1 ||
continue
#copying CALC_CMD to your .zshrc would decrease startup time if that's even a problem
#and also allow you to change command line arguments
case "$cmd" in
"qalc") CALC_CMD="echo \$BUFFER > /tmp/"$USER"qalctemp; qalc -t -c -f /tmp/"$USER"qalctemp"
;;
"calc") CALC_CMD="echo \$BUFFER > /tmp/"$USER"calctemp; calc -f /tmp/"$USER"calctemp"
;;
"bc") CALC_CMD="echo \$BUFFER' | bc -l"
;;
esac
break
done
for cmd in qalc calc bc;do
command -v $cmd >/dev/null 2>&1 ||
continue
#copying CALC_CMD to your .zshrc would decrease startup time if that's even a problem
#and also allow you to change command line arguments
case "$cmd" in
"qalc") CALC_CMD="echo \$BUFFER > /tmp/"$USER"qalctemp; qalc -t -c -f /tmp/"$USER"qalctemp"
;;
"calc") CALC_CMD="echo \$BUFFER > /tmp/"$USER"calctemp; calc -f /tmp/"$USER"calctemp"
;;
"bc") CALC_CMD="echo \$BUFFER' | bc -l"
;;
esac
break
done
fi

if [[ -z $CALC_CMD ]]; then
echo "zsh-calc Failed to find a calculation program (qalc,calc,bc)"
return
echo "zsh-calc Failed to find a calculation program (qalc,calc,bc)"
return
fi

#helper function for setting qalc's base
function base() {
echo "base $@" | qalc > /dev/null
echo "base $@" | qalc > /dev/null
}

function accept-line() {
if [[ $BUFFER =~ '^[ ]?[-+\(0-9]' ]]; then
echo
print -S -- "$BUFFER" #saving the command to history
eval $CALC_CMD
BUFFER=
calcuated='1'
else
unset calcuated
fi
zle .$WIDGET
if [[ $BUFFER =~ '^[ ]?[-+\(0-9]' ]]; then
echo
print -S -- "$BUFFER" #saving the command to history
eval $CALC_CMD
BUFFER=
calcuated='1'
else
unset calcuated
fi
zle .$WIDGET
}

calc_precmd(){
if ! [[ -z $calcuated ]]; then
printf '\033[F'
fi
if ! [[ -z $calcuated ]]; then
printf '\033[F'
fi
}

[[ -z $precmd_functions ]] && precmd_functions=()
precmd_functions=($precmd_functions calc_precmd)

zle -N accept-line

add_qalc_to_start() {
if [[ -z $BUFFER ]]; then
BUFFER="qalc "
elif [[ $BUFFER == qalc\ * ]]; then
BUFFER="${BUFFER#qalc }"
else
BUFFER="qalc $BUFFER"
fi
zle end-of-line
}
zle -N add_qalc_to_start
bindkey '^T' add_qalc_to_start