Subject: Wish List: Allow <xsl:choose> within <xsl:call-template> From: "Clark C. Evans" <clark.evans@xxxxxxxxxxxxxxxxxxxx> Date: Wed, 10 Nov 1999 13:55:20 -0500 (EST) |
One of the first things which I found disturbing with XSL is that the calling mechanism is extremely tedious. However, there is an unexpected advantage to this mechanism (if it were allowed): <xsl:template name="base-function" > <xsl:param name="one" select="'one-default'" /> <xsl:param name="two" select="'two-default'" /> ... </xsl:template> <xsl:template name="derived-function"> <xsl:param name="one" /> ... <xsl:variable name="done" select="false()"/> ... <xsl:call-template name="base-function"> <xsl:choose> <xsl:when test="$one"> <xsl:with-param name="one" select="$one" /> </xsl:when> <xsl:when test="$done" > <xsl:with-param name="one" select="$done" /> </xsl:when> </xsl:choose> ... </xsl:call-template> </xsl:template> The results are suprizing. The derived function may provides an alternative default for parameter "one" ($done) depending on some expression (currently false()). In addition, it allows the user to ovverride this derived default ($one). And, for those cases which slip through the cracks, the base function's default is provided. Nice. Very nice. Clark XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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