// Replace the given node's children with the given string.
func setNodeText(node *html.Node, s string) {
// remove all existing children
for node.FirstChild != nil {
node.RemoveChild(node.FirstChild)
}
// add the text
node.AppendChild(&html.Node{
Type: html.TextNode,
Data: s,
})
}
func RemoveAttr(n *html.Node, key string) {
for i, a := range n.Attr {
if a.Key == key {
copy(n.Attr[i:], n.Attr[i+1:])
n.Attr = n.Attr[:len(n.Attr)-1]
return
}
}
}
// removes an attribute from a node
func removeAttr(node *html.Node, attrName string) {
for i := 0; i < len(node.Attr); i++ {
if node.Attr[i].Key == attrName {
last := len(node.Attr) - 1
node.Attr[i] = node.Attr[last] // overwrite the target with the last attribute
node.Attr = node.Attr[:last] // then slice off the last attribute
i--
}
}
}
func InsertBefore(n *html.Node, nodes ...*html.Node) {
i := childIndex(n)
p := n.Parent
c := make([]*html.Node, len(p.Child)+len(nodes))
copy(c, p.Child[:i])
copy(c[i:], nodes)
copy(c[i+len(nodes):], p.Child[i:])
for _, n := range nodes {
n.Parent.Remove(n)
n.Parent = p
}
p.Child = c
}