const go/doc.protoPart
2 uses
go/doc (current package)
comment.go#L64: protoPart = `(https?|ftp|file|gopher|mailto|nntp)`
comment.go#L70: urlRx = protoPart + `://` + hostPart + pathPart
The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)