func addNode(x tree.Node, p *pathexpr.PathExpr, ret *[]tree.Node) {
add := false
tok := x.GetToken()
switch x.GetNodeType() {
case tree.NtAttr:
add = evalAttr(p, tok.(xml.Attr))
case tree.NtChd:
add = evalChd(p)
case tree.NtComm:
add = evalComm(p)
case tree.NtElem, tree.NtRoot:
add = evalEle(p, tok.(xml.StartElement))
case tree.NtNs:
add = evalNS(p, tok.(xml.Attr))
case tree.NtPi:
add = evalPI(p)
}
if add {
*ret = append(*ret, x)
}
}
func encTok(n tree.Node, e *xml.Encoder) error {
switch n.GetNodeType() {
case tree.NtAttr:
return encAttr(n.GetToken().(xml.Attr), e)
case tree.NtElem:
return encEle(n.(tree.Elem), e)
case tree.NtNs:
return encNS(n.GetToken().(xml.Attr), e)
case tree.NtRoot:
for _, i := range n.(tree.Elem).GetChildren() {
err := encTok(i, e)
if err != nil {
return err
}
}
return nil
}
//case tree.NtChd, tree.NtComm, tree.NtPi:
return e.EncodeToken(n.GetToken())
}
