41 lines
850 B
Go
41 lines
850 B
Go
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package gxpath
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import (
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"goutil/xmlUtil/gxpath/internal/build"
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"goutil/xmlUtil/gxpath/internal/query"
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"goutil/xmlUtil/gxpath/xpath"
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)
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// NodeIterator holds all matched Node object.
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type NodeIterator struct {
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node xpath.NodeNavigator
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query query.Query
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}
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// Current returns current node which matched.
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func (t *NodeIterator) Current() xpath.NodeNavigator {
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return t.node
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}
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// MoveNext moves Navigator to the next match node.
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func (t *NodeIterator) MoveNext() bool {
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n := t.query.Select(t)
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if n != nil {
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if !t.node.MoveTo(n) {
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t.node = n.Copy()
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}
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return true
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}
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return false
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}
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// Select selects a node set using the specified XPath expression.
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func Select(root xpath.NodeNavigator, expr string) *NodeIterator {
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qy, err := build.Build(expr)
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if err != nil {
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panic(err)
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}
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t := &NodeIterator{query: qy, node: root}
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return t
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}
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