Move re::regexp_pattern to universal.c

From: "Jerry D. Hedden" <jdhedden@cpan.org>
Message-ID: <1ff86f510801081201q5c36f055re6165ebfe8876c2e@mail.gmail.com>

p4raw-id: //depot/perl@32911

1 files changed, 46 insertions, 0 deletions

diff --git a/t/op/re.t b/t/op/re.t
new file mode 100644
index 0000000000..d098bdc7da
--- /dev/null
+++ b/t/op/re.t
@@ -0,0 +1,46 @@
+#!./perl
+
+BEGIN {
+	chdir 't' if -d 't';
+	@INC = '../lib';
+}
+
+use strict;
+use warnings;
+
+use Test::More; # test count at bottom of file
+use re qw(is_regexp regexp_pattern
+          regname regnames regnames_count);
+{
+    my $qr=qr/foo/pi;
+    ok(is_regexp($qr),'is_regexp($qr)');
+    ok(!is_regexp(''),'is_regexp("")');
+    is((regexp_pattern($qr))[0],'foo','regexp_pattern[0]');
+    is((regexp_pattern($qr))[1],'ip','regexp_pattern[1]');
+    is(regexp_pattern($qr),'(?pi-xsm:foo)','scalar regexp_pattern');
+    ok(!regexp_pattern(''),'!regexp_pattern("")');
+}
+
+if ('1234'=~/(?:(?<A>\d)|(?<C>!))(?<B>\d)(?<A>\d)(?<B>\d)/){
+    my @names = sort +regnames();
+    is("@names","A B","regnames");
+    @names = sort +regnames(0);
+    is("@names","A B","regnames");
+    my $names = regnames();
+    is($names, "B", "regnames in scalar context");
+    @names = sort +regnames(1);
+    is("@names","A B C","regnames");
+    is(join("", @{regname("A",1)}),"13");
+    is(join("", @{regname("B",1)}),"24");
+    {
+        if ('foobar'=~/(?<foo>foo)(?<bar>bar)/) {
+            is(regnames_count(),2);
+        } else {
+            ok(0); ok(0);
+        }
+    }
+    is(regnames_count(),3);
+}
+# New tests above this line, don't forget to update the test count below!
+use Test::More tests => 14;
+# No tests here!