d ctxt value like(xmlSchemaValidCtxtPtr)
d err like(xmlSchemaValidityErrorFunc)
d warn like(xmlSchemaValidityWarningFunc)
d ctx * void *(*)
d xmlSchemaSetValidOptions...
d ctxt value like(xmlSchemaValidCtxtPtr)
d err like(xmlSchemaValidityErrorFunc)
d warn like(xmlSchemaValidityWarningFunc)
d ctx * void *(*)
d xmlSchemaSetValidOptions...