Why won't Firefox parse this XSLT?
I've recently been playing around with XML formatting and XLST files, because it seems like the most direct solution to a UI problem I've been wrestling with involving users accessing the central data differently. In my experimentation I've created a really nice formatting sheet that looks great... in Internet Explorer. When I test it in Firefox, I consistently get the same error message:
"Error loading stylesheet: Parsing an XSLT stylesheet failed."
I've tried paring the stylesheet down to a very basic document and still experience the same problem. I've been checkin开发者_C百科g tutorials and other webforums and mimic'ing examples, but I can't seem to find anything that is explicitly applicable.
Here's my test XML file:
<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet type="text/xsl" href="fox.xslt"?>
<article>
<title>Making Excellent Pasta Sauce</title>
<synopsis>A simple recipe for an amazing sauce, with tips on getting that extra flavor.</synopsis>
<content>Here is my content.</content>
<tags>
<tag>sauce</tag>
<tag>recipes</tag>
</tags>
</article>
And then, here's my XSLT file (named, as you might tell from the example block above, "fox.xslt".
<?xml version="1.0" ?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl">
<xsl:template match="/">
<html>
<head>
</head>
<body>
<xsl:for-each select="article">
TITLE: <xsl:value-of select="title"/> <BR/>
SYNOPSIS: <xsl:value-of select="synopsis"/> <BR/><BR/>
</xsl:for-each>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
I suspect that it may have something to do with
<xsl:stylesheet xmlns:xsl="http://www.w3.org/TR/WD-xsl"> because I've seen a few different things done with this in examples, I've tried a few of the different values here and haven't seem to hit on one that works with this example.
I'm sure it's probably a basic problem, I just have been flummoxed at tracking down. Hopefully someone can lead me to the "forehead smacking moment".
Thanks in advance!
Try to replace your stylesheet element with this:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
You may also want to add this:
xmlns="http://www.w3.org/1999/xhtml"
I find it most useful to use a separate tool to find the problems that FireFox (et al) will not report. Install and use, say, the xsltproc command, which gives much more helpful results.
For example, I encountered a file where Firefox's only response was (take your pick): "Parsing an XSLT stylesheet failed" or, with version=1.1 in the stylesheet, " the equally useless "Parsing an XSLT expression failed."
So, I went to the command-line and entered, say ..."xsltproc bah.xsl humbug.xml" then, presto, there it was:
error
xsltCompileStepPattern : ']' expected
compilation error: file bah.xsl line 157 element template
xsltCompilePattern : failed to compile 'ATOM[@STATE='GAS''
I therefore routinely run all of my XML and XSL files through xsltproc or its equivalent such that they "run clean" before feeding it to my friendly neighborhood browser. I have not yet found any browser that "graciously and informatively" handles an XSLT issue.
In addition, I find it quite-frankly easier to look at the command output (which is HTML), say by piping it to the less or more commands for pagination, than to try looking at it in a browser, until I know that I am very close to what I am looking for. If I'm trying to find a problem in the generated (say) HTML output, I really don't want to look at it "as HTML" at first. If the XSL transforms are "spewing nonsense" (as, of course, they do at first, at least for me), a browser's attempts to turn it into something beautiful just gets in the way of finding the bugs in the stylesheet.
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