added lucene & solr libraries as well as initial tibetan language processing code + new build file

source/org/thdl/lucene/NumberPadder.java

@@ -0,0 +1,32 @@
+package org.thdl.lucene;
+
+import org.apache.lucene.analysis.*;
+import java.text.DecimalFormat;
+import java.io.*;
+
+public class NumberPadder extends TokenFilter {
+    public static final String NUMBER_TYPE = "Number";
+    private static final DecimalFormat formatter = new DecimalFormat("0000000000");
+
+    public static String pad(int n) {
+        return formatter.format(n);
+    }    
+
+    public NumberPadder(TokenStream input) {
+        super(input);
+    }
+    
+    public Token next() throws IOException {
+        Token token = input.next();
+        if (token == null) 
+            return null;
+        try {
+            int i = Integer.parseInt(token.termText());
+            Token replace = new Token(pad(i), token.startOffset(), token.endOffset(), NUMBER_TYPE);
+            replace.setPositionIncrement(token.getPositionIncrement());
+            return replace;
+        } catch (NumberFormatException nfe) {
+            return token;
+        }
+    }
+}