showdate() #@ Convert ISO date to English date
{ #@ USAGE: showdate ISO_DATE [VAR]
local _monthname=( '' January February March April May June July
August September October November December )
local _iso=$1 _var=$2
local _year _month _day _date
IFS=${_iso//[0-9]} read _year _month _day <<< "$_iso"
_date="${_day#0} ${_monthname[10#$_month]} $_year"
((debug)) &&
pr1 "year=$_year" "month=$_month" "day=$_day" "date=$_date"
is_var "$_var" && printf -v "$_var" %s "$_date" || printf '%s\n' "$_date"
}