navi.plugin.bash

#!/usr/bin/env bash

_navi_call() {
   local result="$(navi "$@" </dev/tty)"
   printf "%s" "$result"
}

_navi_widget() {
   local -r input="${READLINE_LINE}"
   local -r last_command="$(echo "${input}" | navi fn widget::last_command)"

   if [ -z "${last_command}" ]; then
      local -r output="$(_navi_call --print)"
   else
      local -r find="${last_command}_NAVIEND"
      local -r replacement="$(_navi_call --print --query "$last_command")"
      local output="$input"
      if [ -n "$replacement" ]; then
        output="${input}_NAVIEND"
        output=$(
          shopt -u patsub_replacement
          printf '%s' "${output//"$find"/"$replacement"}"
        )
      fi
   fi

   READLINE_LINE="$output"
   READLINE_POINT=${#READLINE_LINE}
}

_navi_widget_legacy() {
   _navi_call --print
}

if [ ${BASH_VERSION:0:1} -lt 4 ]; then
   bind '"__NAVI_KEY__": " \C-b\C-k \C-u`_navi_widget_legacy`\e\C-e\C-a\C-y\C-h\C-e\e \C-y\ey\C-x\C-x\C-f"'
else
   bind -x '"__NAVI_KEY__": _navi_widget'
fi