func findAncestor(x pathres.PathRes, p *pathexpr.PathExpr, ret *[]pathres.PathRes) {
if x.GetParent().EvalPath(p) {
*ret = append(*ret, x.GetParent())
}
if x.GetParent() != x {
findAncestor(x.GetParent(), p, ret)
}
}
func findPrecedingSibling(x pathres.PathRes, p *pathexpr.PathExpr, ret *[]pathres.PathRes) {
if x == x.GetParent() {
return
}
par := x.GetParent()
ch := par.GetChildren()
i := len(ch) - 1
for x != ch[i] {
i--
}
i--
for i >= 0 {
findSelf(ch[i], p, ret)
i--
}
}
func findFollowingSibling(x pathres.PathRes, p *pathexpr.PathExpr, ret *[]pathres.PathRes) {
if x == x.GetParent() {
return
}
par := x.GetParent()
ch := par.GetChildren()
i := 0
for x != ch[i] {
i++
}
i++
for i < len(ch) {
findSelf(ch[i], p, ret)
i++
}
}
func findParent(x pathres.PathRes, p *pathexpr.PathExpr, ret *[]pathres.PathRes) {
if x.GetParent() != x && x.GetParent().EvalPath(p) {
*ret = append(*ret, x.GetParent())
}
}