#! /bin/sh

# generate list of ranges of wide characters, i.e.
# East Asian categories Wide (W) and FullWidth (F), from EastAsianWidth.txt,
# plus enclosing ranges as listed in Blocks.txt

if make Blocks.txt >&2
then	true
else	echo Could not acquire Unicode data file Blocks.txt >&2
	exit 1
fi
if make EastAsianWidth.txt >&2
then	true
else	echo Could not acquire Unicode data file EastAsianWidth.txt >&2
	exit 1
fi

sed -e "s,^\([^;]*\);[WF],\1," -e t -e d EastAsianWidth.txt > width-w
#uniset +width-w c > wide.h
#rm -f width-w


sed -e "s, .*,," width-w > width-w.lst
rm -f width-w


function isawidechar () {
	grep -w $1 width-w.lst > /dev/null
}

function hasawidechar () {
	chk=`printf %d 0x$1`
	end=`printf %d 0x$2`
	limit=`expr $chk + 222`
	if [ $limit -lt $end ]
	then	end=$limit
	fi
	while [ $chk -le $end ]
	do	if isawidechar `printf %04X $chk`
		then	return 0
		fi
		chk=`expr $chk + 1`
	done
	return 9
}

sed -e "s,^\([0-9A-F][0-9A-F]*\)[^0-9A-F][^0-9A-F]*\([0-9A-F][0-9A-F]*\);.*,\1 \2," \
	-e t -e d Blocks.txt |
while read block
do	if hasawidechar $block
	then	set - $block
		echo "	{0x$1, 0x$2},"
	fi
done
rm -f width-w.lst