func (t *Transformer) ApplyToFirstMatch(f TransformFunc, sels ...string) error {
cs := make([]Collector, 0, len(sels))
for _, sel := range sels {
sq, err := selector.Selector(sel)
if err != nil {
return err
}
cs = append(cs, sq)
}
t.ApplyWithCollector(f, FirstMatch(cs...))
return nil
}
// SubTransform constructs a TransformFunc that runs a TransformFunc on
// any nodes in the tree rooted by the node the the TransformFunc is run
// against.
// This is useful for creating self contained Transforms that are
// meant to work on subtrees of the html document.
func Subtransform(f TransformFunc, sel string) (TransformFunc, error) {
sq, err := selector.Selector(sel)
return SubtransformCollector(f, sq), err
}
// The ApplyWithSelector method applies a TransformFunc to the nodes matched
// by the CSS3 Selector.
func (t *Transformer) Apply(f TransformFunc, sel string) error {
sq, err := selector.Selector(sel)
t.ApplyWithCollector(f, sq)
return err
}
// Trans creates a Transform that you can apply using ApplyAll.
// It takes a TransformFunc and a valid CSS3 Selector.
// It returns a *Transform or an error if the selector wasn't valid
func Trans(f TransformFunc, sel string) (*Transform, error) {
sq, err := selector.Selector(sel)
return TransCollector(f, sq), err
}