you simply must add a predicate to the context:
<rule context="/data/number[/data/selected = 'number']">
<assert test="number(.)=.">
You must specify a valid number.
</assert>
</rule>Furthermore I think you should change the test pattern. If someone writes 5.0, it can return false. I have in mind 5.0 and 5, if the transformer tests on strings and not on numbers. (I had the same problem a few days ago with XSLT. Is the behaviour simply processor dependent or specified anywhere?) If you change the test to "number() = number()" you are on the safe side, because "NaN = NaN" returns always false.
Regards,
Joerg
Rob Johnston wrote:
Hello -- I have a quick Schematron/XMLForm question.
Let's say I have the following XPath:
/data/selected which can be either "text" or "number" /data/number a valid number
I want to write a validation pattern that will assert iff /data/selected is 'number' and /data/number must be a number.
For instance:
<rule context="/data/number"> <assert test="number(.)=."> You must specify a valid number. </assert> </rule>
works fine, but I want the above to happen ONLY if /data/selected is the value "number". So if /data/selected is the value "text", it will completely ignore the check to see if the /data/number field is a numeric value.
Any help would be appreciated.
thanks, rob
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