Method Select

query.go:241–267

(t iterator)

}

func (a *attributeQuery) Select(t iterator) NodeNavigator {
	for {
		if a.iterator == nil {
			node := a.Input.Select(t)
			if node == nil {
				return nil
			}
			node = node.Copy()
			a.iterator = func() NodeNavigator {
				for {
					onAttr := node.MoveToNextAttribute()
					if !onAttr {
						return nil
					}
					if a.Predicate(node) {
						return node
					}
				}
			}
		}

		if node := a.iterator(); node != nil {
			return node
		}
		a.iterator = nil
	}
}

func (a *attributeQuery) Evaluate(t iterator) interface{} {
	a.Input.Evaluate(t)