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#!/bin/sh
#
# Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
unset LC_ALL
test_colrm()
{
args=$1
stdin=$2
expected=`echo -n "$3."`
export LC_CTYPE=en_US.UTF-8
result=`echo -n "$stdin" | colrm $args ; echo -n .`
if [ "$result" != "${expected}" ]; then
echo "echo -n \"$stdin\" | colrm $args"
echo -n "$stdin" | hexdump -C
echo "expected: \"$expected\""
echo -n "$expected" | hexdump -C
echo "result: \"$result\""
echo -n "$result" | hexdump -C
exit 1;
fi
if [ -n "$4" ]; then
expected=`echo -n "$4."`
fi
export LC_CTYPE=C
result=`echo -n "$stdin" | colrm $args ; echo -n .`
if [ "$result" != "${expected}" ]; then
echo "[C] echo -n \"$stdin\" | colrm $args"
echo -n "$stdin" | hexdump -C
echo "expected: \"$expected\""
echo -n "$expected" | hexdump -C
echo "result: \"$result\""
echo -n "$result" | hexdump -C
exit 1;
fi
}
# single byte characters
test_colrm "" "abcd" "abcd"
test_colrm "2" "abcd" "a"
test_colrm "5" "abcd" "abcd"
test_colrm "2 3" "abcd" "ad"
test_colrm "5 6" "abcd" "abcd"
# tab characters
test_colrm "" "a\tb" "a\tb"
test_colrm "10" "\tab" "\ta"
test_colrm "9" "\tab" "\t"
test_colrm "8" "\tab" " "
test_colrm "3 7" "a\tb" "a b"
test_colrm "7 9" "abcd\txe" "abcd e"
test_colrm "3 6" "abcd\tef" "ab ef"
# zero width
test_colrm "2 2" "ax\0314\0200b" "ab" "a\0314\0200b"
test_colrm "3 3" "ax\0314\0200bx\0314\0200c" "ax\0314\0200x\0314\0200c" \
"ax\0200bx\0314\0200c"
# double width
test_colrm "2 3" "a\0354\0277\0277b" "ab" "a\0277b"
test_colrm "2 2" "a\0354\0277\0277b" "a b" "a\0277\0277b"
test_colrm "3 3" "a\0354\0277\0277b" "a b" "a\0354\0277b"
test_colrm "4 4" "a\0354\0277\0277b\0354\0277\0277c" \
"a\0354\0277\0277\0354\0277\0277c" \
"a\0354\0277b\0354\0277\0277c"
# backspaces
test_colrm "3 3" "ab\b_cd\b_e" "ab\b_d\b_e"
test_colrm "2 2" "ab\b_c" "ac"
test_colrm "2 2" "ax\0314\0200\bb" "ab" "a\0314\0200\bb"
test_colrm "3 3" "ax\0314\0200\bbx\0314\0200\bc" \
"ax\0314\0200\bx\0314\0200\bc" \
"ax\0200\bbx\0314\0200\bc"
test_colrm "2 3" "a\0354\0277\0277\bbcde" "ade" "a\0277\bbcde"
test_colrm "2 2" "a\0354\0277\0277\bbcde" "acde" "a\0277\0277\bbcde"
test_colrm "3 3" "a\0354\0277\0277\bbcde" "abde" "a\0354\0277\bbcde"
test_colrm "4 4" \
"a\0354\0277\0277\b\0354\0277\0277b\0354\0277\0277\b\0354\0277\0277c" \
"a\0354\0277\0277\b\0354\0277\0277\0354\0277\0277\b\0354\0277\0277c" \
"a\0354\0277\0277\0277b\0354\0277\0277\b\0354\0277\0277c"
test_colrm "2 3" "a\0354\0277\0277\b\bbcde" "ade" "a\0277\bcde"
test_colrm "2 2" "a\0354\0277\0277\b\bbcde" "acde" "a\0277\0277\b\bbcde"
test_colrm "3 3" "a\0354\0277\0277\b\bbcde" "abde" "a\0354\0277\bcde"
test_colrm "4 4" \
"a\0354\0277\0277\b\b\0354\0277\0277b\0354\0277\0277\b\b\0354\0277\0277c" \
"a\0354\0277\0277\b\b\0354\0277\0277\0354\0277\0277\b\b\0354\0277\0277c" \
"a\0354\0277\b\0354\0277b\0354\0277\0277\b\b\0354\0277\0277c"
test_colrm "" "\bx" "\bx"
test_colrm "1" "\bx" "\b"
# invalid bytes and non-printable characters
test_colrm "3 3" "a\0377b\0377c" "a\0377\0377c"
test_colrm "2 2" "a\0377b" "ab"
test_colrm "3 3" "a\01b\01c" "a\01\01c"
test_colrm "2 2" "a\01b" "ab"
test_colrm "3 3" "a\0315\0270b\0315\0270c" "a\0315\0270\0315\0270c" \
"a\0315b\0315\0270c"
test_colrm "2 2" "a\0315\0270b" "ab" "a\0270b"
# edge cases
test_colrm "" "" ""
test_colrm "2 2" "\n" "\n"
exit 0
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