--- /dev/null
+#!/bin/sh
+
+# input is a start, stop range pair
+# output is a list of code points with hexadecimal filler glyphs
+grep "^[0-9A-Fa-f]" $1 | \
+ awk 'NF == 1 {print "unihexgen " $1 " " $1;} \
+ NF == 2 {print "unihexgen " $1 " " $2;}' | \
+ /bin/sh -s