.

4 files changed, 694 insertions, 5 deletions

diff --git a/tests/tac/Makefile.am b/tests/tac/Makefile.am
index a15e548d1..4c8eab7b1 100644
--- a/tests/tac/Makefile.am
+++ b/tests/tac/Makefile.am
@@ -4,9 +4,15 @@
 x = tac
 explicit =
 maint_gen = basic-0.I basic-0.X basic-a.I basic-a.X basic-b.I basic-b.X \
-basic-c.I basic-c.X basic-d.I basic-d.X basic-e.I basic-e.X
+basic-c.I basic-c.X basic-d.I basic-d.X basic-e.I basic-e.X basic-f.I \
+basic-f.X basic-g.I basic-g.X basic-h.I basic-h.X basic-i.I basic-i.X \
+basic-j.I basic-j.X basic-k.I basic-k.X b2-e.I b2-e.X b2-f.I b2-f.X b2-g.I \
+b2-g.X b2-h.I b2-h.X b2-i.I b2-i.X b2-j.I b2-j.X b2-k.I b2-k.X
 run_gen = basic-0.O basic-0.E basic-a.O basic-a.E basic-b.O basic-b.E \
-basic-c.O basic-c.E basic-d.O basic-d.E basic-e.O basic-e.E
+basic-c.O basic-c.E basic-d.O basic-d.E basic-e.O basic-e.E basic-f.O \
+basic-f.E basic-g.O basic-g.E basic-h.O basic-h.E basic-i.O basic-i.E \
+basic-j.O basic-j.E basic-k.O basic-k.E b2-e.O b2-e.E b2-f.O b2-f.E b2-g.O \
+b2-g.E b2-h.O b2-h.E b2-i.O b2-i.E b2-j.O b2-j.E b2-k.O b2-k.E
 ##test-files-end
 
 EXTRA_DIST = mk-script.pl Test.pm $x-tests $(explicit) $(maint_gen)
diff --git a/tests/tac/Makefile.in b/tests/tac/Makefile.in
index e7f0a34a2..3abd6c88b 100644
--- a/tests/tac/Makefile.in
+++ b/tests/tac/Makefile.in
@@ -45,9 +45,15 @@ CC = @CC@
 x = tac
 explicit =
 maint_gen = basic-0.I basic-0.X basic-a.I basic-a.X basic-b.I basic-b.X \
-basic-c.I basic-c.X basic-d.I basic-d.X basic-e.I basic-e.X
+basic-c.I basic-c.X basic-d.I basic-d.X basic-e.I basic-e.X basic-f.I \
+basic-f.X basic-g.I basic-g.X basic-h.I basic-h.X basic-i.I basic-i.X \
+basic-j.I basic-j.X basic-k.I basic-k.X b2-e.I b2-e.X b2-f.I b2-f.X b2-g.I \
+b2-g.X b2-h.I b2-h.X b2-i.I b2-i.X b2-j.I b2-j.X b2-k.I b2-k.X
 run_gen = basic-0.O basic-0.E basic-a.O basic-a.E basic-b.O basic-b.E \
-basic-c.O basic-c.E basic-d.O basic-d.E basic-e.O basic-e.E
+basic-c.O basic-c.E basic-d.O basic-d.E basic-e.O basic-e.E basic-f.O \
+basic-f.E basic-g.O basic-g.E basic-h.O basic-h.E basic-i.O basic-i.E \
+basic-j.O basic-j.E basic-k.O basic-k.E b2-e.O b2-e.E b2-f.O b2-f.E b2-g.O \
+b2-g.E b2-h.O b2-h.E b2-i.O b2-i.E b2-j.O b2-j.E b2-k.O b2-k.E
 
 EXTRA_DIST = mk-script.pl Test.pm $x-tests $(explicit) $(maint_gen)
 noinst_SCRIPTS = $x-tests
diff --git a/tests/tac/Test.pm b/tests/tac/Test.pm
index cf90d7bab..7b5b067c4 100644
--- a/tests/tac/Test.pm
+++ b/tests/tac/Test.pm
@@ -11,6 +11,20 @@ my @tv = (
 ['basic-c', '', "a\n", "a\n", 0],
 ['basic-d', '', "a\nb", "b\na\n", 0],
 ['basic-e', '', "a\nb\n", "b\na\n", 0],
+['basic-f', '', "1234567\n8\n", "8\n1234567\n", 0],
+['basic-g', '', "12345678\n9\n", "9\n12345678\n", 0],
+['basic-h', '', "123456\n8\n", "8\n123456\n", 0],
+['basic-i', '', "12345\n8\n", "8\n12345\n", 0],
+['basic-j', '', "1234\n8\n", "8\n1234\n", 0],
+['basic-k', '', "123\n8\n", "8\n123\n", 0],
+
+['b2-e', '', "a\nb", "b\na\n", 0],
+['b2-f', '', "1234567\n8", "8\n1234567\n", 0],
+['b2-g', '', "12345678\n9", "9\n12345678\n", 0],
+['b2-h', '', "123456\n8", "8\n123456\n", 0],
+['b2-i', '', "12345\n8", "8\n12345\n", 0],
+['b2-j', '', "1234\n8", "8\n1234\n", 0],
+['b2-k', '', "123\n8", "8\n123\n", 0],
 );
 
 sub test_vector
diff --git a/tests/tac/tac-tests b/tests/tac/tac-tests
index 078b50bd8..48c7af901 100755
--- a/tests/tac/tac-tests
+++ b/tests/tac/tac-tests
@@ -315,8 +315,671 @@ else
   esac
 fi
 test -s basic-e.E || rm -f basic-e.E
+$xx  $srcdir/basic-f.I > basic-f.O 2> basic-f.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-f(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-f.O $srcdir/basic-f.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-f(F)"; fi ;;
+    1) $echo "Test basic-f(F) failed: files basic-f.O and $srcdir/basic-f.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-f(F) may have failed." 1>&2;
+       $echo The command "cmp basic-f.O $srcdir/basic-f.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-f.E || rm -f basic-f.E
+cat $srcdir/basic-f.I | $xx  > basic-f.O 2> basic-f.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-f(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-f.O $srcdir/basic-f.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-f(|)"; fi ;;
+    1) $echo "Test basic-f(|) failed: files basic-f.O and $srcdir/basic-f.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-f(|) may have failed." 1>&2;
+       $echo The command "cmp basic-f.O $srcdir/basic-f.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-f.E || rm -f basic-f.E
+$xx  < $srcdir/basic-f.I > basic-f.O 2> basic-f.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-f(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-f.O $srcdir/basic-f.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-f(<)"; fi ;;
+    1) $echo "Test basic-f(<) failed: files basic-f.O and $srcdir/basic-f.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-f(<) may have failed." 1>&2;
+       $echo The command "cmp basic-f.O $srcdir/basic-f.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-f.E || rm -f basic-f.E
+$xx  $srcdir/basic-g.I > basic-g.O 2> basic-g.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-g(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-g.O $srcdir/basic-g.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-g(F)"; fi ;;
+    1) $echo "Test basic-g(F) failed: files basic-g.O and $srcdir/basic-g.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-g(F) may have failed." 1>&2;
+       $echo The command "cmp basic-g.O $srcdir/basic-g.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-g.E || rm -f basic-g.E
+cat $srcdir/basic-g.I | $xx  > basic-g.O 2> basic-g.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-g(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-g.O $srcdir/basic-g.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-g(|)"; fi ;;
+    1) $echo "Test basic-g(|) failed: files basic-g.O and $srcdir/basic-g.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-g(|) may have failed." 1>&2;
+       $echo The command "cmp basic-g.O $srcdir/basic-g.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-g.E || rm -f basic-g.E
+$xx  < $srcdir/basic-g.I > basic-g.O 2> basic-g.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-g(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-g.O $srcdir/basic-g.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-g(<)"; fi ;;
+    1) $echo "Test basic-g(<) failed: files basic-g.O and $srcdir/basic-g.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-g(<) may have failed." 1>&2;
+       $echo The command "cmp basic-g.O $srcdir/basic-g.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-g.E || rm -f basic-g.E
+$xx  $srcdir/basic-h.I > basic-h.O 2> basic-h.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-h(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-h.O $srcdir/basic-h.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-h(F)"; fi ;;
+    1) $echo "Test basic-h(F) failed: files basic-h.O and $srcdir/basic-h.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-h(F) may have failed." 1>&2;
+       $echo The command "cmp basic-h.O $srcdir/basic-h.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-h.E || rm -f basic-h.E
+cat $srcdir/basic-h.I | $xx  > basic-h.O 2> basic-h.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-h(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-h.O $srcdir/basic-h.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-h(|)"; fi ;;
+    1) $echo "Test basic-h(|) failed: files basic-h.O and $srcdir/basic-h.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-h(|) may have failed." 1>&2;
+       $echo The command "cmp basic-h.O $srcdir/basic-h.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-h.E || rm -f basic-h.E
+$xx  < $srcdir/basic-h.I > basic-h.O 2> basic-h.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-h(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-h.O $srcdir/basic-h.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-h(<)"; fi ;;
+    1) $echo "Test basic-h(<) failed: files basic-h.O and $srcdir/basic-h.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-h(<) may have failed." 1>&2;
+       $echo The command "cmp basic-h.O $srcdir/basic-h.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-h.E || rm -f basic-h.E
+$xx  $srcdir/basic-i.I > basic-i.O 2> basic-i.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-i(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-i.O $srcdir/basic-i.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-i(F)"; fi ;;
+    1) $echo "Test basic-i(F) failed: files basic-i.O and $srcdir/basic-i.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-i(F) may have failed." 1>&2;
+       $echo The command "cmp basic-i.O $srcdir/basic-i.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-i.E || rm -f basic-i.E
+cat $srcdir/basic-i.I | $xx  > basic-i.O 2> basic-i.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-i(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-i.O $srcdir/basic-i.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-i(|)"; fi ;;
+    1) $echo "Test basic-i(|) failed: files basic-i.O and $srcdir/basic-i.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-i(|) may have failed." 1>&2;
+       $echo The command "cmp basic-i.O $srcdir/basic-i.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-i.E || rm -f basic-i.E
+$xx  < $srcdir/basic-i.I > basic-i.O 2> basic-i.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-i(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-i.O $srcdir/basic-i.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-i(<)"; fi ;;
+    1) $echo "Test basic-i(<) failed: files basic-i.O and $srcdir/basic-i.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-i(<) may have failed." 1>&2;
+       $echo The command "cmp basic-i.O $srcdir/basic-i.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-i.E || rm -f basic-i.E
+$xx  $srcdir/basic-j.I > basic-j.O 2> basic-j.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-j(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-j.O $srcdir/basic-j.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-j(F)"; fi ;;
+    1) $echo "Test basic-j(F) failed: files basic-j.O and $srcdir/basic-j.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-j(F) may have failed." 1>&2;
+       $echo The command "cmp basic-j.O $srcdir/basic-j.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-j.E || rm -f basic-j.E
+cat $srcdir/basic-j.I | $xx  > basic-j.O 2> basic-j.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-j(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-j.O $srcdir/basic-j.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-j(|)"; fi ;;
+    1) $echo "Test basic-j(|) failed: files basic-j.O and $srcdir/basic-j.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-j(|) may have failed." 1>&2;
+       $echo The command "cmp basic-j.O $srcdir/basic-j.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-j.E || rm -f basic-j.E
+$xx  < $srcdir/basic-j.I > basic-j.O 2> basic-j.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-j(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-j.O $srcdir/basic-j.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-j(<)"; fi ;;
+    1) $echo "Test basic-j(<) failed: files basic-j.O and $srcdir/basic-j.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-j(<) may have failed." 1>&2;
+       $echo The command "cmp basic-j.O $srcdir/basic-j.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-j.E || rm -f basic-j.E
+$xx  $srcdir/basic-k.I > basic-k.O 2> basic-k.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-k(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-k.O $srcdir/basic-k.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-k(F)"; fi ;;
+    1) $echo "Test basic-k(F) failed: files basic-k.O and $srcdir/basic-k.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-k(F) may have failed." 1>&2;
+       $echo The command "cmp basic-k.O $srcdir/basic-k.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-k.E || rm -f basic-k.E
+cat $srcdir/basic-k.I | $xx  > basic-k.O 2> basic-k.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-k(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-k.O $srcdir/basic-k.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-k(|)"; fi ;;
+    1) $echo "Test basic-k(|) failed: files basic-k.O and $srcdir/basic-k.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-k(|) may have failed." 1>&2;
+       $echo The command "cmp basic-k.O $srcdir/basic-k.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-k.E || rm -f basic-k.E
+$xx  < $srcdir/basic-k.I > basic-k.O 2> basic-k.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test basic-k(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp basic-k.O $srcdir/basic-k.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed basic-k(<)"; fi ;;
+    1) $echo "Test basic-k(<) failed: files basic-k.O and $srcdir/basic-k.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test basic-k(<) may have failed." 1>&2;
+       $echo The command "cmp basic-k.O $srcdir/basic-k.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s basic-k.E || rm -f basic-k.E
+$xx  $srcdir/b2-e.I > b2-e.O 2> b2-e.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-e(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-e.O $srcdir/b2-e.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-e(F)"; fi ;;
+    1) $echo "Test b2-e(F) failed: files b2-e.O and $srcdir/b2-e.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-e(F) may have failed." 1>&2;
+       $echo The command "cmp b2-e.O $srcdir/b2-e.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-e.E || rm -f b2-e.E
+cat $srcdir/b2-e.I | $xx  > b2-e.O 2> b2-e.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-e(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-e.O $srcdir/b2-e.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-e(|)"; fi ;;
+    1) $echo "Test b2-e(|) failed: files b2-e.O and $srcdir/b2-e.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-e(|) may have failed." 1>&2;
+       $echo The command "cmp b2-e.O $srcdir/b2-e.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-e.E || rm -f b2-e.E
+$xx  < $srcdir/b2-e.I > b2-e.O 2> b2-e.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-e(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-e.O $srcdir/b2-e.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-e(<)"; fi ;;
+    1) $echo "Test b2-e(<) failed: files b2-e.O and $srcdir/b2-e.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-e(<) may have failed." 1>&2;
+       $echo The command "cmp b2-e.O $srcdir/b2-e.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-e.E || rm -f b2-e.E
+$xx  $srcdir/b2-f.I > b2-f.O 2> b2-f.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-f(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-f.O $srcdir/b2-f.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-f(F)"; fi ;;
+    1) $echo "Test b2-f(F) failed: files b2-f.O and $srcdir/b2-f.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-f(F) may have failed." 1>&2;
+       $echo The command "cmp b2-f.O $srcdir/b2-f.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-f.E || rm -f b2-f.E
+cat $srcdir/b2-f.I | $xx  > b2-f.O 2> b2-f.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-f(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-f.O $srcdir/b2-f.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-f(|)"; fi ;;
+    1) $echo "Test b2-f(|) failed: files b2-f.O and $srcdir/b2-f.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-f(|) may have failed." 1>&2;
+       $echo The command "cmp b2-f.O $srcdir/b2-f.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-f.E || rm -f b2-f.E
+$xx  < $srcdir/b2-f.I > b2-f.O 2> b2-f.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-f(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-f.O $srcdir/b2-f.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-f(<)"; fi ;;
+    1) $echo "Test b2-f(<) failed: files b2-f.O and $srcdir/b2-f.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-f(<) may have failed." 1>&2;
+       $echo The command "cmp b2-f.O $srcdir/b2-f.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-f.E || rm -f b2-f.E
+$xx  $srcdir/b2-g.I > b2-g.O 2> b2-g.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-g(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-g.O $srcdir/b2-g.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-g(F)"; fi ;;
+    1) $echo "Test b2-g(F) failed: files b2-g.O and $srcdir/b2-g.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-g(F) may have failed." 1>&2;
+       $echo The command "cmp b2-g.O $srcdir/b2-g.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-g.E || rm -f b2-g.E
+cat $srcdir/b2-g.I | $xx  > b2-g.O 2> b2-g.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-g(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-g.O $srcdir/b2-g.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-g(|)"; fi ;;
+    1) $echo "Test b2-g(|) failed: files b2-g.O and $srcdir/b2-g.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-g(|) may have failed." 1>&2;
+       $echo The command "cmp b2-g.O $srcdir/b2-g.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-g.E || rm -f b2-g.E
+$xx  < $srcdir/b2-g.I > b2-g.O 2> b2-g.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-g(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-g.O $srcdir/b2-g.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-g(<)"; fi ;;
+    1) $echo "Test b2-g(<) failed: files b2-g.O and $srcdir/b2-g.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-g(<) may have failed." 1>&2;
+       $echo The command "cmp b2-g.O $srcdir/b2-g.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-g.E || rm -f b2-g.E
+$xx  $srcdir/b2-h.I > b2-h.O 2> b2-h.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-h(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-h.O $srcdir/b2-h.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-h(F)"; fi ;;
+    1) $echo "Test b2-h(F) failed: files b2-h.O and $srcdir/b2-h.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-h(F) may have failed." 1>&2;
+       $echo The command "cmp b2-h.O $srcdir/b2-h.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-h.E || rm -f b2-h.E
+cat $srcdir/b2-h.I | $xx  > b2-h.O 2> b2-h.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-h(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-h.O $srcdir/b2-h.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-h(|)"; fi ;;
+    1) $echo "Test b2-h(|) failed: files b2-h.O and $srcdir/b2-h.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-h(|) may have failed." 1>&2;
+       $echo The command "cmp b2-h.O $srcdir/b2-h.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-h.E || rm -f b2-h.E
+$xx  < $srcdir/b2-h.I > b2-h.O 2> b2-h.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-h(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-h.O $srcdir/b2-h.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-h(<)"; fi ;;
+    1) $echo "Test b2-h(<) failed: files b2-h.O and $srcdir/b2-h.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-h(<) may have failed." 1>&2;
+       $echo The command "cmp b2-h.O $srcdir/b2-h.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-h.E || rm -f b2-h.E
+$xx  $srcdir/b2-i.I > b2-i.O 2> b2-i.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-i(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-i.O $srcdir/b2-i.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-i(F)"; fi ;;
+    1) $echo "Test b2-i(F) failed: files b2-i.O and $srcdir/b2-i.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-i(F) may have failed." 1>&2;
+       $echo The command "cmp b2-i.O $srcdir/b2-i.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-i.E || rm -f b2-i.E
+cat $srcdir/b2-i.I | $xx  > b2-i.O 2> b2-i.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-i(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-i.O $srcdir/b2-i.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-i(|)"; fi ;;
+    1) $echo "Test b2-i(|) failed: files b2-i.O and $srcdir/b2-i.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-i(|) may have failed." 1>&2;
+       $echo The command "cmp b2-i.O $srcdir/b2-i.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-i.E || rm -f b2-i.E
+$xx  < $srcdir/b2-i.I > b2-i.O 2> b2-i.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-i(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-i.O $srcdir/b2-i.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-i(<)"; fi ;;
+    1) $echo "Test b2-i(<) failed: files b2-i.O and $srcdir/b2-i.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-i(<) may have failed." 1>&2;
+       $echo The command "cmp b2-i.O $srcdir/b2-i.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-i.E || rm -f b2-i.E
+$xx  $srcdir/b2-j.I > b2-j.O 2> b2-j.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-j(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-j.O $srcdir/b2-j.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-j(F)"; fi ;;
+    1) $echo "Test b2-j(F) failed: files b2-j.O and $srcdir/b2-j.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-j(F) may have failed." 1>&2;
+       $echo The command "cmp b2-j.O $srcdir/b2-j.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-j.E || rm -f b2-j.E
+cat $srcdir/b2-j.I | $xx  > b2-j.O 2> b2-j.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-j(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-j.O $srcdir/b2-j.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-j(|)"; fi ;;
+    1) $echo "Test b2-j(|) failed: files b2-j.O and $srcdir/b2-j.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-j(|) may have failed." 1>&2;
+       $echo The command "cmp b2-j.O $srcdir/b2-j.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-j.E || rm -f b2-j.E
+$xx  < $srcdir/b2-j.I > b2-j.O 2> b2-j.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-j(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-j.O $srcdir/b2-j.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-j(<)"; fi ;;
+    1) $echo "Test b2-j(<) failed: files b2-j.O and $srcdir/b2-j.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-j(<) may have failed." 1>&2;
+       $echo The command "cmp b2-j.O $srcdir/b2-j.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-j.E || rm -f b2-j.E
+$xx  $srcdir/b2-k.I > b2-k.O 2> b2-k.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-k(F) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-k.O $srcdir/b2-k.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-k(F)"; fi ;;
+    1) $echo "Test b2-k(F) failed: files b2-k.O and $srcdir/b2-k.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-k(F) may have failed." 1>&2;
+       $echo The command "cmp b2-k.O $srcdir/b2-k.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-k.E || rm -f b2-k.E
+cat $srcdir/b2-k.I | $xx  > b2-k.O 2> b2-k.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-k(|) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-k.O $srcdir/b2-k.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-k(|)"; fi ;;
+    1) $echo "Test b2-k(|) failed: files b2-k.O and $srcdir/b2-k.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-k(|) may have failed." 1>&2;
+       $echo The command "cmp b2-k.O $srcdir/b2-k.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-k.E || rm -f b2-k.E
+$xx  < $srcdir/b2-k.I > b2-k.O 2> b2-k.E
+code=$?
+if test $code != 0 ; then
+  $echo "Test b2-k(<) failed: ../../src/tac return code $code differs from expected value 0" 1>&2
+  errors=`expr $errors + 1`
+else
+  cmp b2-k.O $srcdir/b2-k.X
+  case $? in
+    0) if test "$VERBOSE" ; then $echo "passed b2-k(<)"; fi ;;
+    1) $echo "Test b2-k(<) failed: files b2-k.O and $srcdir/b2-k.X differ" 1>&2;
+       errors=`expr $errors + 1` ;;
+    2) $echo "Test b2-k(<) may have failed." 1>&2;
+       $echo The command "cmp b2-k.O $srcdir/b2-k.X" failed. 1>&2 ;
+       errors=`expr $errors + 1` ;;
+  esac
+fi
+test -s b2-k.E || rm -f b2-k.E
 if test $errors = 0 ; then
-  $echo Passed all 18 tests. 1>&2
+  $echo Passed all 57 tests. 1>&2
 else
   $echo Failed $errors tests. 1>&2
 fi