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Filename : update_unicode.sh

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#!/bin/sh
#See http://www.unicode.org/reports/tr44/
#
#Me Enclosing_Mark  an enclosing combining mark
#Mn Nonspacing_Mark a nonspacing combining mark (zero advance width)
#Cf Format          a format control character
#
cd "$(dirname "$0")"
UNICODEWIDTH_H=$(git rev-parse --show-toplevel)/unicode-width.h

wget -N http://www.unicode.org/Public/UCD/latest/ucd/UnicodeData.txt \
	http://www.unicode.org/Public/UCD/latest/ucd/EastAsianWidth.txt &&
if ! test -d uniset; then
	git clone https://github.com/depp/uniset.git &&
	( cd uniset && git checkout 4b186196dd )
fi &&
(
	cd uniset &&
	if ! test -x uniset; then
		autoreconf -i &&
		./configure --enable-warnings=-Werror CFLAGS='-O0 -ggdb'
	fi &&
	make
) &&
UNICODE_DIR=. && export UNICODE_DIR &&
cat >$UNICODEWIDTH_H <<-EOF
static const struct interval zero_width[] = {
	$(uniset/uniset --32 cat:Me,Mn,Cf + U+1160..U+11FF - U+00AD)
};
static const struct interval double_width[] = {
	$(uniset/uniset --32 eaw:F,W)
};
EOF