Subject: Feature Suggestion - result subtrees as macro arguments From: "G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx> Date: Tue, 12 Jan 1999 14:12:50 -0500 |
Right now, macro arguments are attribute value templates: <!ELEMENT xsl:arg EMPTY> <!ATTLIST xsl:arg name NMTOKEN #REQUIRED value CDATA #REQUIRED > ... and their default value can be specified: <!ELEMENT xsl:macro-arg EMPTY> <!ATTLIST xsl:macro-arg name NMTOKEN #REQUIRED default CDATA #IMPLIED > I've come across a situation where I'd like to supply to the macro a fragment of the result tree as the value of an argument, as in the following example: <xsl:macro name="page-layout"> <xsl:macro-arg name="title-block"> <xsl:apply-templates match="title-prefix"/> <xsl:apply-templates match="title"/> <xsl:apply-templates match="title-suffix"/> </xsl:macro-arg> <xsl:apply-templates select="page-prefix"/> <xsl:arg name="title-block"/> <xsl:contents/> </xsl:macro> ... <xsl:template match="toc"> <xsl:invoke macro="page-layout"> <xsl:arg name="title-block"> <xsl:text>Table of Contents - </xsl:text> <xsl:apply-templates select="../prestitle"/> </xsl:arg> <xsl:use-arg name="title-block"/> <xsl:apply-templates mode="toccreation" select="/"> </xsl:invoke> </xsl:template> ... <xsl:template match="frame"> <xsl:invoke macro="page-layout"> <xsl:apply-templates/> </xsl:invoke> </xsl:template> In the above, matching a normal frame adds the default "title-block" subtree to the result tree, while matching the toc frame adds the supplied "title-block" subtree to the result tree. Can someone think of a better name than "xsl:use-arg" to mark the injection of the argument's subtree into the result tree? ............ Ken -- G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxxxxxxxx Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/ Training: http://www.CraneSoftwrights.com/s/schedule.htm Resources: http://www.CraneSoftwrights.com/s/resources.htm Shareware: http://www.CraneSoftwrights.com/s/shareware.htm Next XSL Training (see training link): WWW8 - 1999-05-11 XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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