#
# set +o errexit -o noglob is assumed.
#

EXP_RTL_IFS="${IFS}";

ex_rtl_basename() { echo "${1##*/}"; };
ex_rtl_date() { command date "+${1:-${DEFAULT_TIMESTAMP_FMT}}"; };
ex_rtl_dirname() { echo "${1%/*}"; };
ex_rtl_pop_IFS() { IFS="${EXP_RTL_IFS}"; };
ex_rtl_push_IFS() { EXP_RTL_IFS="${IFS}"; IFS="${1}"; };
ex_rtl_set_var_unsafe() { [ -n "${2}" ] && eval ${1}=\"${2}\" || return 0; };
ex_rtl_test_cmd() { command -v "${1}" >/dev/null; };
ex_rtl_uniq() { echo "${@}" | sed 's/ /\n/g' | awk '!x[$0]++' | paste -s -d" "; };
ex_rtl_unset_vars() { while [ ${#} -gt 0 ]; do unset "${1}"; shift; done; };

# vim:filetype=sh