n-options

# Copy this file into /usr/share/zsh/site-functions/
# and add 'autoload n-options` to .zshrc
#
# This function allows to browse and toggle shell's options
#
# Uses n-list

#emulate -L zsh

zmodload zsh/curses

local IFS="
"

unset NLIST_COLORING_PATTERN

[ -f ~/.config/znt/n-list.conf ] && builtin source ~/.config/znt/n-list.conf
[ -f ~/.config/znt/n-options.conf ] && builtin source ~/.config/znt/n-options.conf

# TODO restore options
unsetopt localoptions

integer kshoptionprint=0
[[ -o kshoptionprint ]] && kshoptionprint=1
setopt kshoptionprint

local list
local selected
local option
local state

# 0 - don't remember, 1 - remember, 2 - init once, then remember
NLIST_REMEMBER_STATE=2

local NLIST_GREP_STRING="${1:=}"

while (( 1 )); do
    list=( `setopt` )
    list=( "${(M)list[@]:#*${1:=}*}" )
    list=( "${list[@]:#kshoptionprint*}" )

    if [ "$#list" -eq 0 ]; then
        echo "No matching options"
        break
    fi

    local red=$'\x1b[00;31m' green=$'\x1b[00;32m' reset=$'\x1b[00;00m'
    list=( "${list[@]/ off/${red} off$reset}" )
    #list=( "${list[@]/ on/${green} on$reset}" )
    list=( "${(i)list[@]}" )

    n-list "${list[@]}"

    if [ "$REPLY" -gt 0 ]; then
        [[ -o ksharrays ]] && selected="${reply[$(( REPLY - 1 ))]}" || selected="${reply[$REPLY]}"
        option="${selected%% *}"
        state="${selected##* }"

        if [[ -o globsubst ]]; then
            unsetopt globsubst
            state="${state%$reset}"
            setopt globsubst
        else
            state="${state%$reset}"
        fi

        # Toggle the option
        if [ "$state" = "on" ]; then
            echo "Setting |$option| to off"
            unsetopt "$option"
        else
            echo "Setting |$option| to on"
            setopt "$option"
        fi
    else
        break
    fi
done

NLIST_REMEMBER_STATE=0

[[ "$kshoptionprint" -eq 0 ]] && unsetopt kshoptionprint

# vim: set filetype=zsh: