cxml-devel July 2012

cxml-devel@common-lisp.net

3 participants
2 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] Inconsistency in creating %children vector
by Raymond Wiker 09 Jul '12

09 Jul '12

I was scratching my head for a couple of hours today, because of an apparent failure of cxml-dom::make-space - it did not increase the size of the %children vector. On closer examination, it turned out that the reason was that the %children vector was not adjustable, at that point. The only places in cxml-stp where %children is set up are in %unchecked-insert-child (parent-node.lisp) and normalize-text-nodes! in xpath.lisp. The first of these has (make-array ... :adjustable t ...), while the other does not. My guess is that normalize-text-nodes! might be called as part of an xpath evaluation, and if this happens in code that is actually building the cxml-stp structure, the result might be a situation where the %children vector is not adjustable. I'm not sure if this is a valid use of cxml-stp/xpath, but there is at least one documented case where it has been done :-) I could (trivially) change my code to not use xpath as part of the construction process, but adding :adjustable t to the call to make-array in xpath.lisp makes my (current) code work, and I guess it also makes cxml-stp slightly more robust.

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cxml-devel July 2012