#!/bin/sh
# filename quoting

. "${srcdir=.}/init.sh"; path_prepend_ ../src

fail=0

cat <<EOF > exp- || fail=1
diff -N -r "a/ " "b/ "
0a1
> space
EOF

cat <<EOF > exp--u || fail=1
diff -N -r -u "a/ " "b/ "
--- "a/ "
+++ "b/ "
@@ -0,0 +1 @@
+space
EOF

cat <<EOF > exp--c || fail=1
diff -N -r -c "a/ " "b/ "
*** "a/ "
--- "b/ "
***************
*** 0 ****
--- 1 ----
+ space
EOF

mkdir a b
echo space > "b/ " || fail=1
for opt in '' -u -c; do
  returns_ 1 diff -N -r $opt a b > out 2> err || fail=1
  # Remove date and time.
  sed -e 's/^\([-+*][-+*][-+*] [^	]*\)	.*/\1/' out > k; mv k out
  compare exp-$(echo $opt|tr ' ' _) out || fail=1
done

rm -f "b/ "

cat <<EOF > exp || fail=1
--- "a/\t"
+++ "b/\001"
@@ -1 +1 @@
-tab
+one
EOF

tab=$(printf '\t')
x01=$(printf '\001')

echo tab > "a/$tab"   || fail=1
echo one > "b/$x01" || fail=1
returns_ 1 diff -u "a/$tab" "b/$x01" > out 2> err || fail=1
# Remove date and time.
sed -e 's/^\([-+*][-+*][-+*] [^	]*\)	.*/\1/' out > k; mv k out
compare exp out || fail=1

Exit $fail