Re: [xml-dev] Conditional statements in DTD?

[rjelliffe@allette.com.au]

Oh, that is for a <report> btw, the <assert> would have it negated.  You
get the idea!

Cheers
Rick



>>
>>> (Without extension functions, though, I don't
>>> think Schematron can require that if @x is "yes", then @y
>>> must be a prime number.)
>>
>> if(@x='yes') then
>>  not(some $i in 2 to (xs:integer(@y)-1) satisfies (@y mod $i) = 0)
>
> Even in XML 1.0
>
>   (@x mod 2) = 0 or
>   (@x mod 3) = 0 or
>   (@x mod 5) = 0 or
>   (@x mod 7) = 0 or
>   (@x mod 11) = 0 or
>   (@x mod 13) = 0 or
>   (@x mod 17) = 0 or
>   (@x mod 19) = 0
>
> on the understanding that the assertion *test* may be lossy compared to
> the assertion *text* (no false negatives).
>
> In Schematron the assertion text has the primacy: you can even make
> assertions for which no effective test exists, such as "This element is a
> date, in any notation and calendar, but ISO 8601 is preferred."
>
> Cheers
> Rick
>
>
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