url - Golang 如何将 punycode 转换为 unicode？

Question

我想转换 url f.e.:

xn--h1aaebtrh5b.xn--p1ai --> кисточки.рф

当然还有反过来:

kremlin.ru ---> xn--d1abbgf6aiiy.xn--p1ai

我尝试使用idna 包，但我无法导入 vendor 包idna

Link在文档上: https://godoc.org/golang.org/x/net/idna#Profile.ToUnicode

尝试导入:

import "golang_org/x/net/idna"

获取错误:

main.go:18:8: cannot find package "golang_org/x/net/idna" in any of:
    /usr/local/go/src/golang_org/x/net/idna (from $GOROOT)
    /home/arseny/go/src/golang_org/x/net/idna (from $GOPATH)

另一个尝试:

import "vendor/golang_org/x/net/idna"

错误:

main.go:18:8: must be imported as golang_org/x/net/idna

main.go:19:2: use of vendored package not allowed

Answer 1

有人说这段代码行得通

在 bash 中:

go get golang.org/x/net/idna

示例代码:

package main

import (
    "fmt"
    "golang.org/x/net/idna"
)

var p *idna.Profile

func main() {
    // Raw Punycode has no restrictions and does no mappings.
    p = idna.New()
    fmt.Println(p.ToUnicode("xn--d1abbgf6aiiy.xn--p1ai"))
}

但我仍然希望存在另一种方式。我不喜欢将包的本地副本复制到 $GOROOT 路径中。