在Go中某些参数前后分割字符串

Question

My string splitting skills are really poor using Go. I don't know why but I just can't wrap my head around this one and I've tried different ways to do what I need but I always get the wrong output.

I have this string:

https://docs.google.com/spreadsheets/d/1k2RNDSh6K7jH3fezjjfgVrHqVstBF569al4F28hqAM/edit#gid=0

I need to get a key from this URL that is found after '/d/' up until the next '/'.

So the key in this case would be:

1k2RNDSh6K7jH3fezjjfgVrHqVstBF569al4F28hqAM

How would I go about doing this?

Answer 1

strings.Index can help you with this:

s := "https://docs.google.com/spreadsheets/d/1k2RNDSh6K7jH3fezjjfgVrHqVstBF569al4F28hqAM/edit#gid=0"
i := strings.Index(s, "/d/") + len("/d/")
j := strings.Index(s[i:], "/") + i
fmt.Println(s[i:j]) // Prints "1k2RNDSh6K7jH3fezjjfgVrHqVstBF569al4F28hqAM"

Playground: http://play.golang.org/p/Mqnnc_tNFk.