#!/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/TAB"
+++ "b/X01"
@@ -1 +1 @@
-tab
+one
EOF

tab=$(printf 'TAB')
x01=$(printf 'X01')

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