#!/bin/bash -

Usage() { echo "$0 FontFile"; exit 1; }
SayError() { local error=$1; shift; echo "$0: $*"; exit "$error"; }

#[ "$#" -ne 1 ] && Usage

width=70
fontfile="$1"
echo "$fontfile"
[ -f "$fontfile" ] || SayError 4 "File not found: ${fontfile}"

list=$(fc-query --format='%{charset}\n' "$fontfile")

for    range in $list
do     IFS=- read start end <<<"$range"
       # if    [ "$end" ]
       # then
       #       start=$((16#$start))
       #   end=$((16#$end))
       #   for((i=start;i<=end;i++)); do
       #   #printf -v char '\\U%x' "$i"
       #   printf '%b\n' "$char"
       #   done
       # else
         printf '%b\n' "\\U${start}"
         # printf '%b - %b\n' "\\U$start" $char
       # fi
done | cat -e
#| ggrep -oP '.{'"$width"'}'