>Hi, I am not sure if this is the right mailing list to ask these questions. I apologize if it is not. This forum is very useful, for that questions, in my experience this forum was saved my life in very times. I have a few esperience with SRw, I am doing a project about it. >Another question is about how CQL is expected to be used. Right now there are several CQL parsers/compilers but most of them compiles a statement into XCQL. I used the parser CQL java, and it convert a tree of CQL, and an option if you want is to give you the parser in XCQL. You can use CQL tree for translate more easy to any languaje for example in my case is XPath for XML documents. Because you have nodes of treem and you can analiza each one and translate to proper form of you languaje that you want or need. (In my case I applied of this form). Karol Guzman Cuenca-Ecuador __________________________________________________ Correo Yahoo! Espacio para todos tus mensajes, antivirus y antispam ¡gratis! Regístrate ya - http://correo.espanol.yahoo.com/