1 files changed, 45 insertions, 0 deletions
diff --git a/crypto/src/asn1/OidTokenizer.cs b/crypto/src/asn1/OidTokenizer.cs
new file mode 100644
index 000000000..6e76e8c8b
--- /dev/null
+++ b/crypto/src/asn1/OidTokenizer.cs
@@ -0,0 +1,45 @@
+namespace Org.BouncyCastle.Asn1
+{
+    /**
+     * class for breaking up an Oid into it's component tokens, ala
+     * java.util.StringTokenizer. We need this class as some of the
+     * lightweight Java environment don't support classes like
+     * StringTokenizer.
+     */
+    public class OidTokenizer
+    {
+        private string  oid;
+        private int     index;
+
+		public OidTokenizer(
+            string oid)
+        {
+            this.oid = oid;
+        }
+
+		public bool HasMoreTokens
+        {
+			get { return index != -1; }
+        }
+
+		public string NextToken()
+        {
+            if (index == -1)
+            {
+                return null;
+            }
+
+            int end = oid.IndexOf('.', index);
+            if (end == -1)
+            {
+                string lastToken = oid.Substring(index);
+                index = -1;
+                return lastToken;
+            }
+
+            string nextToken = oid.Substring(index, end - index);
+			index = end + 1;
+            return nextToken;
+        }
+    }
+}