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-rwxr-xr-xt/op/pat.t88
1 files changed, 87 insertions, 1 deletions
diff --git a/t/op/pat.t b/t/op/pat.t
index 9f685502f2..142b82e2ad 100755
--- a/t/op/pat.t
+++ b/t/op/pat.t
@@ -4,7 +4,7 @@
# the format supported by op/regexp.t. If you want to add a test
# that does fit that format, add it to op/re_tests, not here.
-print "1..195\n";
+print "1..210\n";
BEGIN {
chdir 't' if -d 't';
@@ -905,3 +905,89 @@ $text = "abc dbf";
print "ok $test\n";
$test++;
+@a = map chr,0..255;
+
+@b = grep(/\S/,@a);
+@c = grep(/[^\s]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\S/,@a);
+@c = grep(/[\S]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\s/,@a);
+@c = grep(/[^\S]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\s/,@a);
+@c = grep(/[\s]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\D/,@a);
+@c = grep(/[^\d]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\D/,@a);
+@c = grep(/[\D]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\d/,@a);
+@c = grep(/[^\D]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\d/,@a);
+@c = grep(/[\d]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\W/,@a);
+@c = grep(/[^\w]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\W/,@a);
+@c = grep(/[\W]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\w/,@a);
+@c = grep(/[^\W]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+@b = grep(/\w/,@a);
+@c = grep(/[\w]/,@a);
+print "not " if "@b" ne "@c";
+print "ok $test\n";
+$test++;
+
+# see if backtracking optimization works correctly
+"\n\n" =~ /\n $ \n/x or print "not ";
+print "ok $test\n";
+$test++;
+
+"\n\n" =~ /\n* $ \n/x or print "not ";
+print "ok $test\n";
+$test++;
+
+"\n\n" =~ /\n+ $ \n/x or print "not ";
+print "ok $test\n";
+$test++;