sed: correctly handle 'w FILE' commands writing to the same file
function old new delta
sed_xfopen_w - 84 +84
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/testsuite/sed.tests b/testsuite/sed.tests
index 2b78c9b..e62b839 100755
--- a/testsuite/sed.tests
+++ b/testsuite/sed.tests
@@ -405,6 +405,15 @@
"" \
"abca\n"
+# This only works if file name is exactly the same.
+# For example, w FILE; w ./FILE won't work.
+testing "sed understands duplicate file name" \
+ "sed -n -e '/a/w sed.output' -e '/c/w sed.output' 2>&1 && cat sed.output && rm sed.output" \
+ "a\nc\n" \
+ "" \
+ "a\nb\nc\n"
+
+
# testing "description" "commands" "result" "infile" "stdin"
exit $FAILCOUNT