Hi, I'm using cxml as of 2006-01-05 and encounter problems with documents which refer to a local DTD. The important constraint here is that I'm working on a system on which all catalogs are old-style SGML catalogs and using XML catalogs is out. Before rolling my own entity resolver or working out a general solution using cxml:make-extid, I simply wanted to test SYSTEM ids. However, this doesn't work out as expected. I get an error from xstream-open-extid, which seems to get passed an absolute path instead of the relative path given in the doctype declaration. I.e., <!DOCTYPE review SYSTEM "review.dtd" > results in 2: (XSTREAM-OPEN-EXTID #S(EXTID :PUBLIC NIL :SYSTEM #<URI file://+/review.dtd>)) Locals: SB-DEBUG::ARG-0 = #S(EXTID :PUBLIC NIL :SYSTEM #<URI file://+/review.dt>) which is afterwards translated to /review.dtd. I did some fairly low-level digging through the code, and think that the error is related to the following piece of code in p/doctype-decl: (when extid (let* ((effective-extid (extid-using-catalog (absolute-extid input extid))) I don't understand why the effective-extid is computed based on an absolute-extid -- I would have expected some test whether the path is absolute or relative. However, maybe I misinterpret something, and the comment below is related to the problem: (defun absolute-uri (sysid source-stream) (let ((base-sysid (zstream-base-sysid source-stream))) ;; XXX is the IF correct? (if base-sysid (puri:merge-uris sysid base-sysid) sysid))) I have an additional theory here: base-sysid is "file://+/", and indeed inspecting source-stream shows that the URI associated with it is indeed just The object is a STRUCTURE-OBJECT of type STREAM-NAME. [type: STREAM-NAME] -------------------- ENTITY-NAME: "main document" ENTITY-KIND: :MAIN URI: #<URI file://+> This also doesn't seem to make to much sense to me either. However, I'm just debugging cluelessly around, so ultimately, I'm just asking for help. :-) With kind regards, Holger -- --- http://www.coling.uni-freiburg.de/~schauer/ --- Fachbegriffe der Informatik - Einfach erklärt 19: voll konfigurierbar nicht vorinstalliert. (Peter Berlich)