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Re: using default params?
Subject: Re: using default params? From: David Carlisle <davidc@xxxxxxxxx> Date: Wed, 29 Mar 2000 11:07:32 GMT |
> the syntax > choose-when-/when-otherwise-/otherwise-/choose is more than a little > bit stupid for this... It's an XML feature. If you close your eyes, the syntax doesn't look so bad. > this I don't understand. As Paul commented, your understanding wasn't helped by me messing up the example. > what if I want to do something like > <table bgcolor="#ff0000" border="1"> and have both overridden? <table bgcolor="#ff0000" border="1"> <xsl:if test="@foo"> <xsl:attribute name="bgcolor"><xsl:value-of select="@foo"/></xsl:attribute> </xsl:if> <xsl:if test="@bar"> <xsl:attribute name="border"><xsl:value-of select="@bar"/></xsl:attribute> </xsl:if> > And I don't understand this, too :-( > why don't you need a test for existence in this example around the > xsl:copy-of ? 'cause <xsl:copy-of select="@bgcolor"/> copys the nodes it selects and if there isn't a bgcolor attribute node, that isn't an error you just get the empty node set so nothing in the output. People often go in a template <table border="{@border}"> hoping to copy the border attribute from some input table to an output table but that is only ok if the input attribute is always there, otherwise you get border="". better to go <table border> <xsl:copy-of select="@border"/> or if you want as in your case to supply a default <table border border="1001! > <xsl:copy-of select="@border"/> except you also want to change the name of the attribute so you have to go back to testing. David XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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