Re: regular expression matching in <assert>

I have no easy way to test it, but I think your expression could be simplified, ie.

test="if (matches(string(@target), '.*')) then true() else false()"

seems to be the same as

test="matches(string(@target), '.*'))"

I've checked the following URL:

http://www.w3.org/TR/xquery-operators/#func-matches

and it seems that "matches" returns xs:boolean:

fn:matches($input as xs:string?, $pattern as xs:string) as xs:boolean
Summary: The function returns true if $input matches the regular expression supplied as $pattern as influenced by the value of $flags, if present; otherwise, it returns false.

Best regards,
Dawid


W dniu 17.04.2013 19:28, Jim Barnett pisze:
> Mukul,
>    Yes, that fixed it.  Thank you for your prompt reply.
>
> - Jim
>
> -----Original Message-----
> From: Mukul Gandhi [mailto:[email protected]]
> Sent: Wednesday, April 17, 2013 12:26 PM
> To: [email protected]
> Subject: Re: regular expression matching in <assert>
>
> Hi Jim,
>      Thanks for sending across the schema and XML instance documents. I looked at the schema document you've shared.
>
> The following fix seems to work for your problem <assert>,
>
> <xsd:assert test="if (matches(string(@target), '.*')) then true() else false()"  xpathDefaultNamespace="##targetNamespace"/>
>
> i.e, we use a string() function around attribute node @target. The 'target' attribute within your schema has type annotation of xsd:IDREFS, therefore we seem to need this workaround.
>
> On Wed, Apr 17, 2013 at 9:06 PM, Jim Barnett <[email protected]> wrote:
>> Mukul,
>>    Thanks for your response.  I've attached a sample schema and test file (the schema is edited down from a much larger document, so it's structure may not make much sense.)   The problem is in the <assert> in line 74 of the schema.  (The simpler <assert> in line 73 works properly.)
>>
>> I suspect that you may be right about there being a namespace problem,
>> because the <assert> in line 74 fails even if I wrap not() around it.
>> So both
>>
>> <xsd:assert test="if (matches(@target, '.*')) then true() else
>> false()"  xpathDefaultNamespace="##targetNamespace"/>
>> And
>> <xsd:assert test="if not((matches(@target, '.*'))) then true() else
>> false()"  xpathDefaultNamespace="##targetNamespace"/>
>>
>> both fail, which makes it look like the processor is not finding the matches() function.
>>
>> The 'xpathDefaultNamespace="##targetNamespace"' attribute is something I stumbled across when trying to get some other assertions to work, but I admit that I don't really understand what effects it may be having.
>>
>> Thank you for your help.
>>
>> - Jim
>
>
>
>
> --
> Regards,
> Mukul Gandhi
>
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