XSLT current() function
May 28, 2021 XSL T
Table of contents
XSLT current() function
The role of the XSLT current() function is to return a set of nodes that contain only the current node.
The complete XSLT function reference object
Definitions and usages
The current() function returns a set of nodes that contain only the current node. Typically, the current node is the same as the context node.
<xsl:value-of select="current()"/>
Equals
<xsl:value-of select="." />
However, there is a difference. L et's take a look at the following XPath expression: "catalog/cd". T he expression selects the child node of the current node, and then selects the child node of the node. This means that "." has a different meaning at every step of the calculation.
Here's the line:
<xsl:apply-templates select="//cd[@title=current()/@ref]"/>
All cd elements that will process the value of the title property equal to the value of the ref property of the current node.
Unlike this one:
<xsl:apply-templates select="//cd[@title=./@ref]"/>
This handles all cd elements with the same value as the title and ref properties.
Grammar
Instance 1
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<xsl:for-each select="catalog/cd/artist">
Current node: <xsl:value-of select="current()"/>
<br />
</xsl:for-each>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
The complete XSLT function reference object