Re: [xml] XML Schema Help

[James Yerge <james nixsecurity org>]

On 09/22/2011 08:21 PM, Syd Bauman wrote:
> I'm afraid I can't help out much more, here (you're problem goes
> beyond my meager capabilities). But if you haven't tried 
> xsdtorngconverter, it may be worth a shot:
> http://code.google.com/p/xsdtorngconverter/
>
> I cannot vouch that it works well, but I tried it on the snippet of
> XSD you posted, and the resulting RELAX NG looked quite reasonable.
> (And quite easy to change to do what you want.)
>
> > I apologize if I posted to the wrong list. Anyway, thanks for your help.
> > The schematron rule appears to be working, however, here's my scenario.
> > I have an XSD written already and don't have the time to convert it to
> > Schematron or relax-NG. I know xmllint doesn't fully implement the XSD
> > specification nor does it support XSD 1.1 but without having to
> > introduce an alternative validator to the build process, I'm stuck with
> > xmllint and an XSD. Also, I'm dealing with very large .xml files at
> > times, in some instances close to 1GB, so memory is of importance here.
> > I'll break down the process below.
> >
> > You import your XML file, validation is performed using xmllint, if
> > validation fails I simply discard the file and throw an error. However,
> > if validation succeeds, the XML file is parsed using PHP (the SAX
> > parser). I could use PHP to validate if the TARGET preference is set and
> > discard the file and throw an error if not found, however, I'd prefer
> > not to go that route. I'm also dealing with two separate formats of the
> > XML file but the problem exists with the schema validation for the newer
> > format.
> >
> > I've been trying to find the proper XSD rule, without any luck, to
> > validate the document. I'd prefer not to have to validate the XML file
> > twice using xmllint. I'm currently executing xmllint from the CLI,
> > without any luck using both the XSD and schematron (with the --stream
> > option). I need the --stream option so xmllint doesn't load the entire
> > document in memory. When executing xmllint with --schematron and the
> > --stream option, I get no validation messages back, whatsoever.
> >
> > Examples:
> > xmllint --noout --stream --schematron file.sch file.xml
> > xmllint --noout --stream --schema file.xsd --schematron file.sch file.xml
> >
> > James
> _______________________________________________
> xml mailing list, project page  http://xmlsoft.org/
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I appreciate the time and effort you've taken to help me. I'll check out
that converter, previously I used trang to go to relax-ng, however,
validating with xmllint using the --stream argument seems to throw
continuous validation errors when encountered. I'll mess around with the
arguments to see if I can get xmllint to return a single validation
error, if that doesn't work, I think I can surppress errors and possibly
check the return code from xmllint, if it's set.

Again, thanks for your time and help :)

James