newlib-cygwin/winsup/cygwin/linux-locale-helpers/fetch-lc_collate-elements-f...

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#!/bin/bash
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Assuming
#
# git clone https://sourceware.org/git/glibc.git
# cd glibc
#
topdir="$(git rev-parse --show-toplevel)"
if [ -z "${topdir}" ]
then
echo "Not a git dir? Exit."
exit 1
fi
cd "${topdir}"
glibc_conf="$(grep 'GNU C Library' configure.ac)"
if [ -z "${glibc_conf}" ]
then
echo "No GLibc configure.ac? Wrong git repo? Exit."
exit 1
fi
if [ ! -f version.h ]
then
echo "No version.h file? Exit."
exit 1
fi
version=$(sed -n -e 's/#define VERSION "\(.*\)"/\1/p' version.h)
if [ -z "${version}" ]
then
echo "Malformed version.h file. Exit."
exit 1
fi
if [ ! -d localedata/locales ]
then
echo "No localedata/locales subdir. Broken repo? Exit."
exit 1
fi
(
cd localedata/locales
cat <<-EOF
/* This struct of collating elements data has been generated by fetching
locale data from a GLibc ${version} source dir on $(date +%F). */
struct collating_element_t
{
const char32_t *element;
const char *locale;
};
collating_element_t collating_element[] =
{
EOF
grep -r collating-element * \
| sed -e 's#^\([^:]*\):collating-element[ \t]*\([^ \t]*\)[ \t]*from[ \t]*"\(.*\)".*$# { U"\3", "\1" }, /* \2 */#
s/<U\([[:xdigit:]]\{4\}\)>/\\U0000\1/g
s/<U\([[:xdigit:]]\{5\}\)>/\\U000\1/g
s/<U\([[:xdigit:]]\{6\}\)>/\\U00\1/g
s/iso14651_t1_common//g' \
| sort
echo "};"
) > lc_collelem.h