Subject: RE: [xsl] Evaluating an expression as an XPath expression From: Mark Feblowitz <mfeblowitz@xxxxxxxxxxxxxxxx> Date: Sat, 22 Dec 2001 19:56:27 -0500 |
Yup - that did it! And thanks. The different document contexts were something I never would have gotten. Mark ---------------------------------------------------------------------------- ---- Mark Feblowitz [t] 617.715.7231 Frictionless Commerce Incorporated [f] 617.495.0188 XML Architect [e] mfeblowitz@xxxxxxxxxxxxxxxx 400 Technology Square, 9th Floor Cambridge, MA 02139 www.frictionless.com -----Original Message----- From: Trevor Nash [mailto:tcn@xxxxxxxxxxxxx] Sent: Saturday, December 22, 2001 9:58 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] Evaluating an expression as an XPath expression >In my real example (which didn't have the typo), I have multiple Expr >elements that I must process. By converting the result to a string, don't I >lose the ability to process it using a for-each? You said that I can "switch >it back by using a global variable to hold the root and another >for-each", at what point do I convert to string? > If you have more than one node, then yes you need to convert to a string within the for-each. You then need an inner for-each to switch the context back, like this: First a global variable <xsl:variable name="root" select="/" /> Then modify your original attempt by inserting a for-each as indicated by the >>>: <xsl:for-each select="document(VC.xml')//Expr"> <xsl:variable name="expr"> <xsl:value-of select="."/> </xsl:variable> >>> <xsl:for-each select="$root"> >>> <!-- context is now the main input document --> <xsl:if test="saxon:eval(saxon:expression($expr))"> <p>Found it: <xsl:value-of select="$expr"/></p> </xsl:if> >>> </xsl:for-each> </xsl:for-each> Regards, Trevor Nash -- Traditional training & distance learning, Consultancy by email Melvaig Software Engineering Limited voice: +44 (0) 1445 771 271 email: tcn@xxxxxxxxxxxxx XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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