cxml-devel May 2012

cxml-devel@common-lisp.net

4 participants
3 discussions

[cxml-devel] validating XML: document
by Alexandre Rademaker 12 Jul '12

12 Jul '12

Hello, I need to validate a XML file that doesn't have the doctype declaration. Actually, I don't control how the XML files are created so I am not able to change the fact that those files don't have doctype declarations. My problem is how to validate does files agains a DTD. I found at http://common-lisp.net/project/cxml/sax.html#parser that the correctly way should be: > (let ((d (cxml:parse-file "0675365413696898.xml" (cxml-dom:make-dom-builder))) (x (cxml:parse-dtd-file "LMPLCurriculo.DTD"))) (dom:map-document (cxml:make-validator x #"CURRICULO-VITAE") d)) But that gives me two warnings and return a NIL Warning: deprecated SAX default method used by a handler that is not a subclass of SAX:ABSTRACT-HANDLER or HAX:ABSTRACT-HANDLER Warning: deprecated SAX default method used by a handler that is not a subclass of SAX:ABSTRACT-HANDLER or HAX:ABSTRACT-HANDLER NIL It seems to work. I also tried with an invalid XML and the code fired an error! Nevertheless, what are bothering me are does warnings!! Any idea? Best, Alexandre Rademaker http://arademaker.github.com/

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[cxml-devel] Exported symbols [was: Re: Possible bug in cxml-stp]
by Raymond Wiker 25 May '12

25 May '12

On Wed, May 23, 2012 at 12:02 AM, David Lichteblau <david(a)lichteblau.com>wrote: > Quoting Raymond Wiker (rwiker(a)gmail.com): > > Would it be an idea to add functionality similar to what > > plexippus-xpath provides via with-namespaces? I.e, a special variable > > that holds the current set of namespace tag/uri mappings, and have > > some some additional constructors that use split-qname to extract the > > tag and look-up the url from the current set of mappings. > > Possibly... cxml currently has such a macro only for its serialization > API, i.e. > > CL-USER> (cxml:with-xml-output (stp:make-builder) > (cxml:with-namespace ("a" "http://a") > (cxml:with-element "a:b" > (cxml:text "xyz")))) > #.(CXML-STP-IMPL::DOCUMENT > :CHILDREN '(#.(CXML-STP:ELEMENT > #| :PARENT of type DOCUMENT |# > :CHILDREN '(#.(CXML-STP:TEXT > #| :PARENT of type ELEMENT |# > :DATA > "xyz")) > :LOCAL-NAME "b" > :NAMESPACE-PREFIX "a" > :NAMESPACE-URI "http://a"))) > > That API can't really modify STP in place though; the builder only knows > how to set up a full document. > [Subject: changed, as it was getting embarassingly inappropriate.] I ended up modifying my add-element function, based on the code that you included earlier. It now looks like this: (defun add-element (parent element-name attributes &optional element-value) (let ((element-name (if (listp element-name) (first element-name) element-name)) (namespace-uri (if (listp element-name) (second element-name) (cxml-stp:find-namespace (cxml::split-qname element-name) parent)))) (let ((new-element (cxml-stp:make-element element-name namespace-uri))) (cxml-stp:append-child parent new-element) (loop for (name value) on attributes by #'cddr do (cxml-stp:add-attribute new-element (cxml-stp:make-attribute (princ-to-string value) name (cxml-stp-impl::find-attribute-namespace (cxml::split-qname name) new-element)))) (when element-value (cxml-stp:append-child new-element (cxml-stp:make-text (princ-to-string element-value)))) new-element))) This seems to work, but I'm not 100% sure of the code that handles namespaces for attributes. Note that the code uses two un-exported symbols: cxml::split-name and cxml-stp-impl::find-attribute-namespace. Should these be exported? Best Regards, Raymond Wiker

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[cxml-devel] Possible bug in cxml-stp
by Raymond Wiker 23 May '12

23 May '12

I'm using cxml-stp to build XML responses for a web service that implements Microsoft's "Research" API (actually, this is just a generalised search interface). While building this, I found something that looks like a bug in cxml-stp. If this is _not_ a bug, I'd be happy for any hint about what I'm doing wrong :-) The attachment contains a small test case which builds an XML document and serializes it. The attachment should be compiled and loaded after cxml-stp has been loaded, and the commented-out test form at the end of the file should then be evaluated. The test uses two implementations of cxml-stp-impl::collect-local-namespaces. With the original implementation, the "Status" and "Providers" elements get incorrect xmlns attributes. With the modified version, this is not the case.

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cxml-devel May 2012