libbb/lineedit: add support for preserving "broken" (non-unicode) chars
Signed-off-by: Tomas Heinrich <heinrich.tomas@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/testsuite/ash.tests b/testsuite/ash.tests
index 6b2caf3..ce585be 100755
--- a/testsuite/ash.tests
+++ b/testsuite/ash.tests
@@ -7,8 +7,30 @@
. ./testing.sh
+test -f "$bindir/.config" && . "$bindir/.config"
+
# testing "test name" "options" "expected result" "file input" "stdin"
+if test x"$CONFIG_UNICODE_PRESERVE_BROKEN" = x"y"; then
+testing "One byte which is not valid unicode char followed by valid input" \
+ "script -q -c 'ash' /dev/null >/dev/null; cat ash.output" \
+ "\
+00000000 ff 2d 0a |.-.|
+00000003
+" \
+ "" \
+ "echo \xff- | hexdump -C >ash.output; exit; exit; exit; exit\n"
+
+testing "30 bytes which are not valid unicode chars followed by valid input" \
+ "script -q -c 'ash' /dev/null >/dev/null; cat ash.output" \
+ "\
+00000000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
+00000010 ff ff ff ff ff ff ff ff ff ff ff ff ff ff 2d 0a |..............-.|
+00000020
+" \
+ "" \
+ "echo \xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff- | hexdump -C >ash.output; exit; exit; exit; exit\n"
+else
testing "One byte which is not valid unicode char followed by valid input" \
"script -q -c 'ash' /dev/null >/dev/null; cat ash.output" \
"\
@@ -27,6 +49,8 @@
" \
"" \
"echo \xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff- | hexdump -C >ash.output; exit; exit; exit; exit\n"
+fi
+
# Not sure this behavior is perfect: we lose all invalid input which precedes
# arrow keys and such. In this example, \xff\xff are lost