Re: document.write & copy-of

[Jeni Tennison <mail at jenitennison dot com>]

Lee,

>	<xsl:element name="A">
>		<xsl:attribute name="href">
>
javascript:Popup=window.open('','IntlPopup','alwaysRaised=1,dependent=1,heig
ht=300,location=0,menubar=1,personalbar=0,scrollbars=0,status=0,toolbar=0,wi
dth=590,resizable=0');
>			Popup.focus();
>			Popup.document.write('
>			<TABLE>
>			<xsl:copy-of select="tr"/>
>			</TABLE>
>			');
>		</xsl:attribute>
>			Enlarge this table
>	</xsl:element>

If you look at the code above, you'll see that you're setting the @href
attribute on the generated A element to a string inside which (as far as
the XSLT processor's concerned) you're creating a TABLE element, and a
number of copies of other elements as well.

XSLT processors justifiably won't let you put elements within attribute
content: you have to escape the < and >.  This means that you can't simply
copy the tr elements across - you have to output them as serialised XML.  I
wrote this template earlier today for a similar problem:

<xsl:template match="*" mode="serialise">
  <xsl:text />&lt;<xsl:value-of select="name()" />
  <xsl:for-each select="@*">
    <xsl:text> </xsl:text>
    <xsl:value-of select="name()" />
    <xsl:text />="<xsl:value-of select="." />"<xsl:text />
  </xsl:for-each>
  <xsl:text>&gt;</xsl:text>
  <xsl:apply-templates mode="serialise" />
  <xsl:text />&lt;/<xsl:value-of select="name()" />&gt;<xsl:text />
</xsl:template>

So, you can either replace the above with:

	<xsl:element name="A">
		<xsl:attribute name="href">

javascript:Popup=window.open('','IntlPopup','alwaysRaised=1,dependent=1,heig
ht=300,location=0,menubar=1,personalbar=0,scrollbars=0,status=0,toolbar=0,wi
dth=590,resizable=0');
			Popup.focus();
			Popup.document.write('
			&lt;TABLE&gt;
			<xsl:apply-templates select="tr" mode="serialise" />
			&lt;/TABLE&gt;
			');
		</xsl:attribute>
			Enlarge this table
	</xsl:element>

Or you can use CDATA sections so that you don't have to worry about
escaping the < and > around the TABLE element:

	<xsl:element name="A">
		<xsl:attribute name="href">

<![CDATA[javascript:Popup=window.open('','IntlPopup','alwaysRaised=1,depende
nt=1,height=300,location=0,menubar=1,personalbar=0,scrollbars=0,status=0,too
lbar=0,width=590,resizable=0');
			Popup.focus();
			Popup.document.write('
			<TABLE>]]>
			<xsl:apply-templates select="tr" mode="serialise" />
			<![CDATA[</TABLE>
			');]]>
		</xsl:attribute>
			Enlarge this table
	</xsl:element>

The resultant output will be:

<A
href="javascript:Popup=window.open('','IntlPopup','alwaysRaised=1,dependent=
1,height=300,location=0,menubar=1,personalbar=0,scrollbars=0,status=0,toolba
r=0,width=590,resizable=0');
	Popup.focus();
	Popup.document.write('
	&lt;TABLE&gt;
	&lt;tr&gt;...&lt;/tr&gt;
	&lt;/TABLE&gt;
	');">Enlarge this table</A>

but the Javascript processor will see the unescaped string:

javascript:Popup=window.open('','IntlPopup','alwaysRaised=1,dependent=1,heig
ht=300,location=0,menubar=1,personalbar=0,scrollbars=0,status=0,toolbar=0,wi
dth=590,resizable=0');
	Popup.focus();
	Popup.document.write('
	<TABLE>
	<tr>...</tr>
	</TABLE>
	');

and therefore 'do the right thing'.  Or should, anyway.

I hope that this helps,

Jeni

Jeni Tennison
http://www.jenitennison.com/


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