#!/bin/sh

prefix="$(printf '%s\\|' "$@" | sed 's/..$//')"

definitions_with_max="$(sed -n 's/^\s*#\s*define\s\+\(\('"$prefix"'\)_[A-Za-z0-9_]*\)\s\+\(0[xX][0-9A-Fa-f]\+\|[0-9]\+\)\(.*\)$/\3 \1/p')"

definitions="$(echo "$definitions_with_max" | sed '/ \('"$prefix"'\)_MAX$/d')"
max=$(printf '%u\n' $(echo "$definitions_with_max" | sed -n 's/^\(.*\) \('"$prefix"'\)_MAX$/\1/p'))

nonunique="$(echo "$definitions" | while read num name; do printf '0x%03X\n' $num; done | sort | uniq -d)"

(echo "$definitions" |
	while read line; do
		printf '0x%03X %s\n' $line
	done |
	sed '/^\('"$(echo "$nonunique" | tr '\n' '|' | sed 's/|$/\n/' | sed 's/|/\\|/g')"'\) /d'

	last_num=x
	last_name=x
	while read num name; do
		num=$(printf '0x%03X\n' $num)
		if ! test $last_num = $num && ! test $last_num = x; then
			printf '%s %s\n' $last_num $last_name
		fi
		last_num=$num
		last_name=$name
	done
	if ! test $last_num = x; then
		printf '%s %s\n' $last_num $last_name
	fi
) |
sort |
while read num name; do
	printf '%s %u\n' $name $num;
done |
uniq -f 1 |
awk '
BEGIN {num = 0}
{
	while ($2 != num) {
		printf "\"0x%03X\",\n", num
		num += 1
	}
	printf "\"%s\",\n", $1
	num += 1
}
END {
	while (num <= '"$max"') {
		printf "\"0x%03X\",\n", num
		num += 1
	}
}' |
sed '$s/,$//'