Re: [bug-diffutils] [PATCH] diff: Encode file names with special characters

[Jim Meyering]

Andreas Gruenbacher wrote:
...
> Note that the test case might not survive sending over email as it
> contains a special character.  Maybe the test case can be turned into
> plain text somehow and stay reasonably portable.
...
> diff --git a/tests/filename-quoting b/tests/filename-quoting
> new file mode 100755
> index 0000000..d06ff60

I guess the ^A (0x01) was what you meant, but I'd suggest also
replacing a couple of TABs in nearby code.  I'll be happy to
include this change in your patch:

diff --git a/tests/filename-quoting b/tests/filename-quoting
index d06ff60..e3e9193 100755
--- a/tests/filename-quoting
+++ b/tests/filename-quoting
@@ -48,9 +48,12 @@ cat <<EOF > exp || fail=1
 +one
 EOF

-echo tab > "a/ " || fail=1
-echo one > "b/" || fail=1
-diff -u "a/    " "b/" > out 2> err; test $? = 1 || fail=1
+tab=$(printf '\t')
+x01=$(printf '\001')
+
+echo tab > "a/$tab"   || fail=1
+echo one > "b/$x01" || fail=1
+diff -u "a/$tab" "b/$x01" > out 2> err; test $? = 1 || fail=1
 # Remove date and time.
 sed -e 's/^\([-+*][-+*][-+*] [^        ]*\)    .*/\1/' out > k; mv k out
 compare exp out || fail=1