func Blacklist(w io.Writer, n *html.Node, filterItems []htmlrender.MinimalHtmlNode) error {
// returns false if there is ANY 100% match between the node any MinimumHTMLNode
renderDecisionFunc := func(n html.Node, filterItems []htmlrender.MinimalHtmlNode) bool {
for _, minNode := range filterItems {
if htmlrender.TagMatch(n, minNode) && htmlrender.AttributeMatch(n.Attr, minNode.Attr) {
return false
}
}
return true
}
err := htmlrender.RenderSans(w, n, renderDecisionFunc, filterItems)
if err != nil {
return err
}
return nil
}
func Whitelist(w io.Writer, n *html.Node, filterItems []htmlrender.MinimalHtmlNode) error {
for _, minNode := range filterItems {
nodeCopy := html.Node{
Data: n.Data,
Attr: n.Attr,
}
if htmlrender.TagMatch(nodeCopy, minNode) && htmlrender.AttributeMatch(n.Attr, minNode.Attr) {
err := html.Render(w, n)
if err != nil {
return err
}
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
Whitelist(w, c, filterItems)
}
return nil
}