#!/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