test="string(bk:ISBN) instance of bk:ISBN-type">
Thanks Ken, I see what you're saying.
I gave that a try (I replaced data with string). Unfortunately, I get the same
error message.
/Roger
-----Original Message-----
From: G. Ken Holman [mailto:g(_dot_)ken(_dot_)holman(_at_)gmail(_dot_)com] On
Behalf Of G. Ken Holman
Sent: Monday, July 15, 2013 3:16 PM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com;
xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] How to check an element's type against an XSD simpleType and
skip that element if it does not conform to the simpleType?
At 2013-07-15 18:55 +0000, Costello, Roger L. wrote:
The item of interest, however, is this snippet:
<xsl:for-each select="/bk:BookStore/bk:Book">
<xsl:if test="data(bk:ISBN) instance of bk:ISBN-type">
<ISBN><xsl:value-of select="bk:ISBN"/></ISBN>
</xsl:if>
</xsl:for-each>
The for-loop iterates through each Book and checks to see if the
value of its ISBN element conforms to ISBN-type; if it doesn't
conform, then it skips that ISBN and goes to the next Book.
In the XML document shown above, the Book element has an ISBN
(xxx1-56592-235-2) that is not valid, so I expect my XSLT program to skip it.
However, that is not happening. I get this error message:
The content "xxx1-56592-235-2" of element <ISBN> does not
match the required simple type. Value "xxx1-56592-235-2"
contravenes the pattern facet "\d{1}-\d{5}-\d{3}-\d{1}|\d{1}-..."
of the type ISBN-type
Yep! Because I think you are taking one step too far. I haven't
tested it, but I think this will work for you:
test="string(bk:ISBN) instance of bk:ISBN-type">
What am I doing wrong please?
You are enforcing the schema constraint by using data() before
checking that the content conforms to the constraint. In my code I'm
simply getting the value as a string, thus not imposing any
constrains, and then checking that string to be convertible to the
said constraints.
Please let me know if that works for you.
I hope it helps.
. . . . . . . Ken
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