1 files changed, 91 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x509/X509NameTokenizer.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x509/X509NameTokenizer.java
new file mode 100644
index 000000000..864f0e81c
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x509/X509NameTokenizer.java
@@ -0,0 +1,91 @@
+package org.spongycastle.asn1.x509;
+
+/**
+ * class for breaking up an X500 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.
+ * @deprecated use X500NameTokenizer
+ */
+public class X509NameTokenizer
+{
+    private String          value;
+    private int             index;
+    private char separator;
+    private StringBuffer    buf = new StringBuffer();
+
+    public X509NameTokenizer(
+        String  oid)
+    {
+        this(oid, ',');
+    }
+    
+    public X509NameTokenizer(
+        String  oid,
+        char separator)
+    {
+        this.value = oid;
+        this.index = -1;
+        this.separator = separator;
+    }
+
+    public boolean hasMoreTokens()
+    {
+        return (index != value.length());
+    }
+
+    public String nextToken()
+    {
+        if (index == value.length())
+        {
+            return null;
+        }
+
+        int     end = index + 1;
+        boolean quoted = false;
+        boolean escaped = false;
+
+        buf.setLength(0);
+
+        while (end != value.length())
+        {
+            char    c = value.charAt(end);
+
+            if (c == '"')
+            {
+                if (!escaped)
+                {
+                    quoted = !quoted;
+                }
+                buf.append(c);
+                escaped = false;
+            }
+            else
+            {
+                if (escaped || quoted)
+                {
+                    buf.append(c);
+                    escaped = false;
+                }
+                else if (c == '\\')
+                {
+                    buf.append(c);
+                    escaped = true;
+                }
+                else if (c == separator)
+                {
+                    break;
+                }
+                else
+                {
+                    buf.append(c);
+                }
+            }
+            end++;
+        }
+
+        index = end;
+
+        return buf.toString();
+    }
+}