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9af47f07d3
50% speedup. Fix #91 to run the benchmark: go test -test.run=NONE -bench=".*" -test.benchmem=true ./transform/ > new.txt to compare the results: /usr/local/go/misc/benchcmp baseline.txt new.txt Speedup and memory improvements benchmark old ns/op new ns/op delta BenchmarkChain 101219 50453 -50.15% BenchmarkTransform 51625 45531 -11.80% benchmark old allocs new allocs delta BenchmarkChain 222 103 -53.60% BenchmarkTransform 135 106 -21.48% benchmark old bytes new bytes delta BenchmarkChain 23919 10998 -54.02% BenchmarkTransform 11858 10665 -10.06%
49 lines
1 KiB
Go
49 lines
1 KiB
Go
package transform
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import (
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htmltran "code.google.com/p/go-html-transform/html/transform"
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"net/url"
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)
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func AbsURL(absURL string) (trs []*htmltran.Transform, err error) {
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var baseURL *url.URL
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if baseURL, err = url.Parse(absURL); err != nil {
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return
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}
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if trs, err = absUrlify(baseURL, elattr{"a", "href"}, elattr{"script", "src"}); err != nil {
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return
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}
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return
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}
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type elattr struct {
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tag, attr string
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}
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func absUrlify(baseURL *url.URL, selectors ...elattr) (trs []*htmltran.Transform, err error) {
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var inURL *url.URL
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replace := func(in string) string {
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if inURL, err = url.Parse(in); err != nil {
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return in + "?"
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}
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if fragmentOnly(inURL) {
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return in
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}
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return baseURL.ResolveReference(inURL).String()
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}
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for _, el := range selectors {
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mt := htmltran.MustTrans(htmltran.TransformAttrib(el.attr, replace), el.tag)
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trs = append(trs, mt)
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}
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return
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}
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func fragmentOnly(u *url.URL) bool {
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return u.Fragment != "" && u.Scheme == "" && u.Opaque == "" && u.User == nil && u.Host == "" && u.Path == "" && u.Path == "" && u.RawQuery == ""
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}
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