Subject: [xsl] Boolean Short Curcuit From: Alan <alan-xsl-list@xxxxxxxxx> Date: Fri, 23 Sep 2005 04:50:51 -0400 |
In Saxon 8.(4|5). I'm calling this function. <xsl:function name="page:field" as="element()"> <xsl:param name="name" as="xs:string"/> <xsl:sequence select="document($form-uri)/form/field[name = $name][1]"/> </xsl:function> During this template match. Note that I'm performing a test to see if the parameter exists. I expect that when it doesn't exist, the function part of the test will not be called. <xsl:template match="page:message[ancestor::page:error[@name] and page:field(ancestor::page:error/@name)/error]" mode="page:page"> <page:message><xsl:value-of select="page:field(ancestor::page:error/@name)/error"/></page:message> </xsl:template> But it appears to be getting called. Recoverable error of : XPTY0004: An error occurred matching pattern {page:message[ancestor::page:error[@name] and page:field(ancestor::page:error/@name)/error]} : An empty sequence is not allowed as the result of function page:field() I can provide more context if necessary. I tried if/else statements in the call to page:field, but that still produced the error. Thanks. -- Alan Gutierrez - alan@xxxxxxxxx - http://engrm.com/blogometer/index.html - http://engrm.com/blogometer/rss.2.0.xml
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