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Does anyone know of a list of XSLT instructions/functions that change the context node?
For example, instruction like for-each is one of them.
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Thus, XSLT processors model an XML document as a tree that contains seven kinds of nodes: The root. Elements. Text.
XSLT considers an XML file to consist of a tree of nodes , in which each element, attribute, and string of text contained in an element is a node. Each attribute of an element is a child node of that element's node; each child element is also a child node of that element's node.
A context node is the node the XPath processor is currently looking at. The context node changes as the XPath processor evaluates a query. If you pass a document to the XPath processor, the root node is the initial context node.
The obvious XSLT 2.0 instructions that change the context are for-each, apply-templates, for-each-group, and analyze-string. But there's also, for example, xsl:sort and xsl:key.
In XPath, the operators / and [] change the context. There are no functions that change the context.
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There are only two things in XSLT 1.0 that change the context and neither of them are functions. These are:
<xsl:apply-templates select='some-test'/>
(which will lead to the selected nodes being processed, each one becoming the context node as it is processed)
and
<xsl:for-each select='some-test'/>
In XSLT 2.0, you also have
<xsl:for-each-group/>
(which sets the context node in slightly more complex way than xsl:apply-templates and xsl:for-each
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