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#!/bin/sh
# Copyright (C) 2000-2023 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
# Checks that the iconv() implementation (in both directions) for a
# stateless encoding agrees with the charmap table.
common_objpfx=$1
objpfx=$2
test_program_prefix=$3
charset=$4
charmap=$5
# sort is used on the build system.
LC_ALL=C
export LC_ALL
set -e
# Get the charmap.
./tst-table-charmap.sh \
< ../localedata/charmaps/${charmap:-$charset} \
> ${objpfx}tst-${charset}.charmap.table
# When the charset is GB18030, truncate this table because for this encoding,
# the tst-table-from and tst-table-to programs scan the Unicode BMP only.
if test ${charset} = GB18030; then
grep '0x....$' < ${objpfx}tst-${charset}.charmap.table \
> ${objpfx}tst-${charset}.truncated.table
mv ${objpfx}tst-${charset}.truncated.table ${objpfx}tst-${charset}.charmap.table
fi
# Precomputed expexted differences between the charmap and iconv forward.
precomposed=${charset}.precomposed
# Precompute expected differences between the charmap and iconv backward.
if test ${charset} = EUC-TW; then
irreversible=${objpfx}tst-${charset}.irreversible
(grep '^0x8EA1' ${objpfx}tst-${charset}.charmap.table
cat ${charset}.irreversible
) > ${irreversible}
else
irreversible=${charset}.irreversible
fi
# iconv in one direction.
${test_program_prefix} \
${objpfx}tst-table-from ${charset} \
> ${objpfx}tst-${charset}.table
# iconv in the other direction.
${test_program_prefix} \
${objpfx}tst-table-to ${charset} | sort \
> ${objpfx}tst-${charset}.inverse.table
# Difference between the charmap and iconv backward.
diff ${objpfx}tst-${charset}.charmap.table ${objpfx}tst-${charset}.inverse.table | \
grep '^[<>]' | sed -e 's,^. ,,' > ${objpfx}tst-${charset}.irreversible.table
# Check 1: charmap and iconv forward should be identical, except for
# precomposed characters.
if test -f ${precomposed}; then
cat ${objpfx}tst-${charset}.table ${precomposed} | sort | uniq -u \
> ${objpfx}tst-${charset}.tmp.table
cmp -s ${objpfx}tst-${charset}.charmap.table ${objpfx}tst-${charset}.tmp.table ||
exit 1
else
cmp -s ${objpfx}tst-${charset}.charmap.table ${objpfx}tst-${charset}.table ||
exit 1
fi
# Check 2: the difference between the charmap and iconv backward.
if test -f ${irreversible}; then
cat ${objpfx}tst-${charset}.charmap.table ${irreversible} | sort | uniq -u \
> ${objpfx}tst-${charset}.tmp.table
cmp -s ${objpfx}tst-${charset}.tmp.table ${objpfx}tst-${charset}.inverse.table ||
exit 1
else
cmp -s ${objpfx}tst-${charset}.charmap.table ${objpfx}tst-${charset}.inverse.table ||
exit 1
fi
exit 0
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