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Re: Validation of complex content

• From: George Cristian Bina <george@oxygenxml.com>
• To: Edwin Dankert <edankert@gmail.com>
• Date: Fri, 06 Apr 2012 10:33:39 +0300

Hi Edwin,

Henri Sivonen uses the datatype libraries for his (X)HTML5 validator. 
This may be an interesting example for you, see:
http://about.validator.nu/#details
http://hsivonen.iki.fi/html5-datatypes/

Best Regards,
George
--
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com

On 4/5/12 12:25 PM, Edwin Dankert wrote:
> Hello George,
>
>> You should look also into Relax NG datatype libraries - basically you can
>> define a type for your expressions and write an implementation for that
>> datatype for your Relax NG processor, Jing for example, then you should be
>> able to use that from a Relax NG schema.
>
> Thank you very much for this. This would have been the solution I
> wanted to implement initially however after some looking at the code
> and documentation for the different validation languages there didn't
> seem to be a clear way to implement this, which lead me to conclude
> that this might not generally be regarded as the preferred way to
> handle this type of functionality and prompted my question.
>
> However if you say that this is actually possible and a valid way to
> handle this issue and I am well aware of your experience in this area,
> I will definitely look at this again but now in more depth using the
> pointers you provided.
>
> Thanks again,
> Edwin
>
> On 4 April 2012 19:56, George Cristian Bina<george@oxygenxml.com>  wrote:
>> Hi Edwin,
>>
>> You should look also into Relax NG datatype libraries - basically you can
>> define a type for your expressions and write an implementation for that
>> datatype for your Relax NG processor, Jing for example, then you should be
>> able to use that from a Relax NG schema.
>>
>> Best Regards,
>> George
>> --
>> George Cristian Bina
>> <oXygen/>  XML Editor, Schema Editor and XSLT Editor/Debugger
>> http://www.oxygenxml.com
>>
>>
>> On 3/30/12 3:35 PM, Edwin Dankert wrote:
>>>
>>> Hello,
>>>
>>> I hope you can guide me in the best way to proceed with this validation
>>> issue.
>>>
>>> I have a XML structure with most of the nodes representing simple
>>> data, like names, references and numeric values.
>>>
>>> <person>
>>>    <name>John<name>
>>>    <salary>1000<salary>
>>> </person>
>>>
>>> However some of the numeric nodes can not only represent the data as
>>> simple numeric values, they can also be specified as an expression and
>>> point to other items in the document.
>>>
>>> <person xmlns="x">
>>>    <name>John<name>
>>>    <salary>100000/$no-of-employees}<salary>
>>> </person>
>>>
>>> The expression language is quite complex and cannot be represented by
>>> a regular-expression. The syntax is however specified using EBNF and
>>> only the syntax needs to be validated.
>>>
>>> A XML Schema for this exists:
>>>
>>> <schema>
>>>    <element name="person">
>>>      <sequence>
>>>        <element name="name" type="Name">
>>>        <element name="salary" type="string">
>>>      </sequence>
>>>    </element>
>>> <schema>
>>>
>>> The goal is to have a standalone tool which can validate using the
>>> more simple constraints specified by the schema and also validate the
>>> values which contain the expression language.
>>>
>>> My preferred solution would involve validating the expression value
>>> syntax directly from the EBNF using standard XML technologies but
>>> don't believe this is currently an option.
>>>
>>> My questions now is: what would be the best way to validate these
>>> values in your opinion or how was this solved in any of your previous
>>> projects? (Note: The validator tool-set already includes Java, NVDL,
>>> XSLT 2.0, XML Schema 1.0.)
>>>
>>> Any suggestions are very welcome.
>>>
>>> Thanks in advance,
>>> Edwin
>>>
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>>
>

• References:
  • Re: Validation of complex content
    • From: George Cristian Bina <george@oxygenxml.com>
  • Re: Validation of complex content
    • From: Edwin Dankert <edankert@gmail.com>