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 }