Added support for the D programming languge.

It is still a bit rough around some edges, particularly with regard to multi-threading and operator overloading, and there are some documentation bits missing, but it should be fine for basic use.

The test-suite should build and run fine with the current versions of DMD, LDC and Tango (at least) on Linux x86_64 and Mac OS X 10.6.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12299 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/d/director_string_runme.1.d

@@ -0,0 +1,46 @@
+module director_string_runme;
+
+import Integer = tango.text.convert.Integer;
+import director_string.A;
+
+void main() {
+  char[] s;
+
+  auto c = new director_string_A("hi");
+  for (int i=0; i<3; ++i) {
+    s = c.call_get(i);
+    if (s != Integer.toString(i)) throw new Exception("director_string_A.get(" ~ Integer.toString(i) ~ ") failed. Got:" ~ s);
+  }
+
+  auto b = new director_string_B("hello");
+
+  s = b.call_get_first();
+  if (s != "director_string_B.get_first") throw new Exception("call_get_first() failed");
+
+  s = b.call_get(0);
+  if (s != "director_string_B.get: hello") throw new Exception("get(0) failed");
+}
+
+class director_string_B : A {
+public:
+  this(char[] first) {
+    super(first);
+  }
+  override char[] get_first() {
+    return "director_string_B.get_first";
+  }
+
+  override char[] get(int n) {
+    return "director_string_B.get: " ~ super.get(n);
+  }
+}
+
+class director_string_A : A {
+public:
+  this(char[] first) {
+    super(first);
+  }
+  override char[] get(int n) {
+    return Integer.toString(n);
+  }
+}