HI all
I would to check for the existance of an element, and act upon it,
rather than act everytime the element is matched. What i mean is I have
xml that describes how a web page looks, and an xsl that transforms that
to html and javascript.
For example, i may have this :
<page>
<groupbox x="10" y="10">
<text value="Blaa Blaa" x="10" y="10"/>
<input x="10" y="20" name="foo"/>
</groupbox>
<groupbox x="10" y="30">
<text value="Something Else" x="10" y="10"/>
<input x="10" y="20" name="bar"/>
</groupbox>
<input x="10" y="50" name="gle"/>
</page>
The issue is that at the moment i have some javascript that operates on
the input fields, so I am including it everytime I produce a page, but I
want to only include it iff the xml has at least one <input .../>
element. This is of course simplified, the real xml and the html it
produces is a lot more complicated, some of the html pages produced are
getting fairly large :)
The xsl root match is where i am including all the various javascript
files. Here is a simplified version of my xslt, for those who dont do html :
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="html"/>
<xsl:template match="/">
<html>
<head>
<script language="JavaScript"
src="Shared/Javascript/validate.js"></script>
</head>
<body>
<xsl:apply-templates/>
</body>
</html>
</xsl:template>
<xsl:template match="input">
<!-- input field code goes here -->
</xsl:template>
.
.
.
</xsl:stylesheet>
I only want that <script language="JavaScript"
src="Shared/Javascript/validate.js"></script> part to appear once in the
resulting html iff the xml i am processing has at least one <input..../>
element. I figure i can parse the xml twice, but i cant work out how i
would only match unique elements the first time :) What sort of thing
should i be googleing for in order to solve this problem, it seems like
the sort of thing people would want to do....
Jake
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