On Thursday, December 29, 2005, 8:49:47 AM, George wrote: GCB> [...] Probably your DTD does not define the elements that are GCB> present in your expanded document thus you get validation errors. GCB> I do not understand exactly against what DTD/schema you want your GCB> document to be valid. If a document is not valid against some DTD or GCB> schema you have two options: either correct the document to match the GCB> DTD/schema or change the DTD or schema to allow the content from your GCB> document. Neither of those options are universally applicable. Consider the common case where a DTD is used for infoset augmentation (eg, declaring an attribute to be of type ID) or for entity declaration, but is not intended to be used for validation. GCB> In version 7 (we made available a beta a few days ago [1]) you should be GCB> able to specify a Relax NG schema (using a PI inside the document, see GCB> the associate schema action in oXygen) and a DTD and configure oXygen to GCB> ignore the DTD for validation if a schema is also specified, thus you GCB> will get Relax NG validation and entities support through the DTD but no GCB> validation against the DTD will be performed. Excellent. -- Chris Lilley mailto:chris@w3.org Chair, W3C SVG Working Group W3C Graphics Activity Lead Co-Chair, W3C Hypertext CG