Re: [xml] schema date handling

[Daniel Veillard <veillard redhat com>]

On Mon, Mar 31, 2003 at 10:54:22PM -0600, Charles Bozeman wrote:
> While looking at your changes in the schema date parsing, I noticed some
> oddities. You fixed the date_0.xsd file to have the correct gMonth
> format for the <mon1> element but the content of <mon1> in date_0.xml is
> incorrect (--05--) but not flagged as an error. 
> Using gdb I traced through the code (xmlschemas.c) and found that
> xmlSchemaValidatePredefinedType does return an error to
> xmlSchemaValidateSimpleValue which returns an error to
> xmlSchemaValidateSimpleContent which returns an error to
> xmlSchemaValidateSimpleType which was called by xmlSchemaValidateContent
> but does not check the return value. It appears xmlSchemaValidateContent
> expects the ctxt->err to be set to some error value.

 Arghhh, 

> Which routine should set the ctxt->err (to what value) and print an
> error message.

  Good question, seem th earliest possible in the chain where the
context for error reporting is available should be the one, 
apparently xmlSchemaValidateSimpleValue()

> A similar situation exists with xmlSchemaValidateBasicType which prints
> an error message when a predefined type is invalid but it does not set
> ctxt-err to any error value (what should the error value be?).

  XML_SCHEMAS_ERR_VALUE or a more specific one, adding it to 
xmlSchemaValidError if needed.

> I know you are concentrating on relaxng validation so I will be happy to
> create a patch if you can give me some direction on where to fix things.

   Go ahead, WXS conformance seems a far far away target, but we should
still try to fix bugs when some are raised.

Daniel

-- 
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veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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