--- /dev/null
+package org.bouncycastle.asn1.x509;
+
+/**
+ * class for breaking up an X509 Name 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 X509NameTokenizer
+{
+ private String oid;
+ private int index;
+
+ public X509NameTokenizer(
+ String oid)
+ {
+ this.oid = oid;
+ this.index = 0;
+ }
+
+ public boolean hasMoreTokens()
+ {
+ return (index != -1);
+ }
+
+ public String nextToken()
+ {
+ if (index == -1)
+ {
+ return null;
+ }
+
+ String token;
+ int end = oid.indexOf(',', index);
+
+ if (end == -1)
+ {
+ token = oid.substring(index);
+ index = -1;
+ return token.trim();
+ }
+
+ token = oid.substring(index, end);
+
+ index = end + 1;
+ return token.trim();
+ }
+}