parse_params

#!/usr/bin/env bash

set -o errexit
set -o nounset
set -o pipefail
set -o errtrace
(shopt -p inherit_errexit &>/dev/null) && shopt -s inherit_errexit

SCRIPT_DIR="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
readonly SCRIPT_DIR
# shellcheck source=./init.bash
source "$SCRIPT_DIR"/init.bash

declare -A opts=()
declare -a args=()

foo() {
  l.parse_params opts args "$@"
}

foo -a 3 -b12 -c=5 foo -d= bar -e -3 -4 a -F=abc -gh w -ij=5 -km= -5n -xzy --beep=boop baz --no-wow

echo "[${#opts[@]} Options]"
for key in "${!opts[@]}"; do
  echo "$key: ${opts[$key]}"
done

echo
echo "[${#args[@]} Arguments]"
declare i=0
for key in "${args[@]}"; do
  echo "$i: $key"
  (( i+=1 ))
done

echo "------Use Options------"

# NOTE: Use ${opts[c]:-} instead of ${opts[c]}. If `set -o nounset`, ${opts[c]} will throw error when option omitted.
if [[ -n ${opts[c]:-} ]]; then
  echo "c=${opts[c]}"
fi

echo "------Use Arguments------"
echo "${args[0]} ${args[1]} ${args[2]}"