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Sample XSLT
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" indent="yes" encoding="UTF-8"/>
<xsl:param name="my-param" select="'none'"/>
<xsl:template match="sample">
<html><body><p>
parameter: <xsl:value-of select="$my-param"/>
</p></body></html>
</xsl:template>
Sample XML:
<sample/>
Using xmlpatterns like so:
xmlpatterns sample.xsl sample.xml -param my-param=funky
I can make the HTML output read:
<html><body><p>
parameter: funky</p></body></html>
Brilliant!
Q: How do I pass my-param to my XSLT using QXmlQuery?
I suspect it must be one of the bindVariable() overloads, but none seem a match for a simple string parameter.
Additional information in case it matters: We are still using Qt4.7 at work. But having had a quick look on the internet, the public interface for QXmlQuery seems no different in Qt 5.x
EDIT
What I have so far:
QString output;
QXmlQuery query(QXmlQuery::XSLT20);
query.setFocus(QUrl(input_xml));
query.setQuery(QUrl::fromLocalFile(":/sample.xsl"));
query.evaluateTo(&output);
I use QXmlQuery::XSLT20 because it gives me the least headaches even though my XSLT is targeted at version 1.0 (just in case this has you confused)
488
asked Nov 25 '25 20:11
You can use the bindVariable method effectively, but it depends on your XSLT, though.
If you have
<xsl:param name="my-param" select="$qt-var"/>
and later
parameter: <xsl:value-of select="$my-param"/>
This code will work as expected (please notice that variables must be bound before setting the query):
QXmlQuery query(QXmlQuery::XSLT20);
query.bindVariable("qt-var", QVariant("my value"));
query.setFocus(input_xml);
query.setQuery(xslt);
query.evaluateTo(&output);
If you omit the xsl:param declaration, and just have
parameter: <xsl:value-of select="$qt-var"/>
it will work as well.
You can still use xmlpatterns, as long as the qt-var is passed in:
xmlpatterns sample.xsl sample.xml -param qt-var=qtfunky
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