added fontcharlist

bin/fontcharlist

@@ -0,0 +1,28 @@
+#!/bin/bash -
+
+Usage() { echo "$0 FontFile"; exit 1; }
+SayError() { local error=$1; shift; echo "$0: $@"; exit "$error"; }
+
+[ "$#" -ne 1 ] && Usage
+
+width=70
+fontfile="$1"
+
+[ -f "$fontfile" ] || SayError 4 'File not found'
+
+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   ' "$char"
+         done
+       else
+         printf '%b   ' "\\U$start"
+       fi
+done | grep -oP '.{'"$width"'}'