英文:
Scandinavian characters not working in go-lang go-instagram API bindings
问题
嗨，我正在努力理解这个开源库（https://github.com/carbocation/go-instagram/）中似乎存在的多字节支持问题。我正在使用下面的代码来获取关于瑞典语标签“blå”（蓝色）的信息。然而，当我尝试时，却得到一个空数组。
fmt.Println("Starting instagram download.")
client := instagram.NewClient(nil)
client.ClientID = "myid"
media, _, _ := client.Tags.RecentMedia("blå", nil)
fmt.Println(media)
我已经尝试通过浏览器使用API，发现有几张带有该标签的图片。我还尝试使用英文标签（如blue）的代码片段，也能返回最新的图片。如果有人能解释为什么会出现这种情况，我会很高兴。我想更新这个库，使其支持多字节，但我没有足够的Go语言知识。这是一个Go语言的问题还是库的问题？
谢谢。
英文:
Hi I'm trying to wrap my head around what seems to be a problem with multibyte support in this open source library (https://github.com/carbocation/go-instagram/). I am using the code below to retrieve information about the tag blue in swedish. How ever I get an empty array when trying.
fmt.Println("Starting instagram download.")
client := instagram.NewClient(nil)
client.ClientID = "myid"
media, _, _ := client.Tags.RecentMedia("blå", nil)
fmt.Println(media)
I have tried using the api trough the browser and there are several pictures tagged with the tag. I have also tried using the code snippet with tags in English like blue and that returns the latest pictures as well. I would be glad if any one could explain why this might happen. Id like to update the lib so it supports multi-byte but I haven't got the go knowledge required. Is this a go problem or a problem with the library?
Thank you
答案1
得分: 1
问题出在validTagName()函数中：
// 去除Instagram不接受的内容，例如连字符
func validTagName(tagName string) (bool, error) {
// \W 匹配任何非单词字符
reg, err := regexp.Compile(`\W`)
if err != nil {
return false, err
}
if reg.MatchString(tagName) {
return false, nil
}
return true, nil
}
在Go语言中，\W精确匹配[^0-9A-Za-z_]。这个验证检查是不正确的。
英文:
The problem is in validTagName():
// Strip out things we know Instagram won't accept. For example, hyphens.
func validTagName(tagName string) (bool, error) {
//\W matches any non-word character
reg, err := regexp.Compile(`\W`)
if err != nil {
return false, err
}
if reg.MatchString(tagName) {
return false, nil
}
return true, nil
}
In Go, \W matches precisely [^0-9A-Za-z_]. This validation check is incorrect.
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