first commit

src/main/java/com/baidu/ueditor/Encoder.java

@@ -0,0 +1,24 @@
+package com.baidu.ueditor;
+
+public class Encoder {
+
+	public static String toUnicode ( String input ) {
+		
+		StringBuilder builder = new StringBuilder();
+		char[] chars = input.toCharArray();
+		
+		for ( char ch : chars ) {
+			
+			if ( ch < 256 ) {
+				builder.append( ch );
+			} else {
+				builder.append( "\\u" +  Integer.toHexString( ch& 0xffff ) );
+			}
+			
+		}
+		
+		return builder.toString();
+		
+	}
+	
+}