Subject: Re: [xsl] XSLT 1.1 comments From: "Steve Muench" <Steve.Muench@xxxxxxxxxx> Date: Wed, 14 Feb 2001 19:52:53 -0800 |
| > The <xsl:script> element could just as well be called: | > | > <xsl:associate-user-written-extension-function-implementation-with-namespace/> | | I don't understand. Do you mean msxml:script? I mean that the <xsl:script> element associates an implementation of user written extension functions with a given namespace, in a language-neutral way. Today each existing processor that supports user-written extension functions does this namespace-to-implementation binding in a proprietary way. Some use extension elements, some use funky recognize-something-in-the-namespace-uri tricks. <xsl:script> provides a standard way of accomplishing the same thing, and makes it much more clear that user-written extension functions are being used in the current stylesheet. Using the implementation I'm most familiar with, a concrete example of this difference is the following: Today, to use the java.util.Date class in a stylesheet to retrieve the current date, in OracleXSLT I do something like this: <xsl:stylesheet version="1.0" xmlns:xsl="..." xmlns:date="http://www.oracle.com/XSL/Transform/Java/java.util.Date"> <xsl:template match="/"> <xsl:value-of select="date:toString(date:new())"/> </xsl:template> </xsl:stylesheet> The fact that this is a user-written extension function and the fact that the language is java is totally buried in the uri. With <xsl:script> this becomes: <xsl:stylesheet version="1.0" xmlns:xsl="..." xmlns:date="urn:date"> <!-- | Fact that user-written extension functions are in use is | much more clear, and done in a uniform way. +--> <xsl:script implements-prefix="date" src="java:java.util.Date"/> <xsl:template match="/"> <xsl:value-of select="date:toString(date:new())"/> </xsl:template> </xsl:stylesheet> ______________________________________________________________ Steve Muench, Lead XML Evangelist & Consulting Product Manager BC4J & XSQL Servlet Development Teams, Oracle Rep to XSL WG Author "Building Oracle XML Applications", O'Reilly http://www.oreilly.com/catalog/orxmlapp/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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