ruby - 从 url 中提取后缀（正则表达式）

Question

我需要从 url 中提取后缀，意思是：

http://google.com/sports/golf => 运动/高尔夫 http://yahoo.com/blog?id=7 => blog/id=7

我怎样才能用正则表达式（红宝石风格）来实现这一点？

谢谢

Answer 1

将URI模块与.path + .query.

uri = URI("http://google.com/sports/golf")
uri.path + "/" + uri.query

Answer 2

下面怎么样:)

require 'uri'
p URI.split("http://google.com/sports/golf").compact.drop(2).join("/")
p URI.split("http://yahoo.com/blog?id=7").compact.drop(2).join("/")

或者，

require 'uri'

a = ["http://google.com/sports/golf","http://stackoverflow.com/questions/15766337/extract-suffix-from-url-regex/15766456#15766456","http://yahoo.com/blog?id=7"]
a.each { |url| p URI.split(url).compact.drop(2).join("/") }

输出：

"/sports/golf"
"/questions/15766337/extract-suffix-from-url-regex/15766456/15766456"
"/blog/id=7"

Answer 3

试试这个：

irb(main):011:0> /(?:http:\/\/\w+\.\w+\/)(.+)/.match("http://yahoo.com/blog?id=7")[1]
=> "blog?id=7"
irb(main):012:0> /(?:http:\/\/\w+\.\w+\/)(.+)/.match("http://google.com/sports/golf")[1]
=> "sports/golf"
irb(main):013:0>