ref: dfab56b94698b9ebb5291931a9f67c6cebac8881
dir: opossum/nodes/experimental.go
package nodes
import (
"fmt"
"github.com/andybalholm/cascadia"
"golang.org/x/net/html"
)
func (n *Node) Query(s string) (ns []*Node, err error) {
cs, err := cascadia.Compile(s)
if err != nil {
return nil, fmt.Errorf("cssSel compile %v: %w", s, err)
}
var m func(doc *html.Node, nn *Node) *Node
m = func(doc *html.Node, nn *Node) *Node {
if nn.DomSubtree == doc {
return nn
}
for _, c := range nn.Children {
if res := m(doc, c); res != nil {
return res
}
}
return nil
}
if n == nil {
return nil, fmt.Errorf("nil node tree")
}
for _, el := range cascadia.QueryAll(n.DomSubtree, cs) {
if res := m(el, n); res != nil {
ns = append(ns, res)
}
}
return
}
func (n *Node) NumVClusters() (m int) {
if n.IsFlex() {
if n.IsFlexDirectionRow() {
return 1
} else {
return len(n.Children)
}
} else {
for i, c := range n.Children {
if i == 0 || !c.IsInline() {
m++
}
}
}
return
}
func (n *Node) VSlice(i, j int) (s []*Node) {
s = make([]*Node, 0, j-i)
m := 0
for l, c := range n.Children {
if l == 0 || !c.IsInline() {
m++
}
if i <= l && l <= j {
s = append(s, c)
}
}
return
}
type Fan struct {
from []int
to []int
}
func (f Fan) Slice(root *Node) *Node {
return nil
}
/*func FanSlice(root *Node, depth, k, i, j int) *Node {
newRoot := *root
if depth == 0 {
} else {
for i, c := range root.Children {
newRoot.Children[i] =
}
}
}*/