Extract information from a string

Question

I have strings in form of an URL. The strings looks like

http://www.somezwebsite.com/en/someString/xx-38944672

I am interested on the last part of the URL, the /xx-38944672. I need to extract the xx between the last / and the - which could be one or more characters. I also need to extract the number, 38944672 in this example. The number could also have a different length.

I think I could achieve this by determining the index of the last / the index of the last - and the index of the last character in the string, then proceed the sub-strings. Is there a cleaner way to do this?

split using '/' and then in the last element of the array (xx-38944672) split again and use '-' as the separator, your xx will be the first element of the array now, more info in: https://stackoverflow.com/questions/25678373/swift-split-a-string-into-an-array — João Silva, May 24 '17 at 10:17

score 1 · Answer 1 · answered May 24 '17 at 10:32

1

This is the one you needed:

/\w+(?=-)/g

DEMO

answered May 24 '17 at 10:32

Vishal Suthar

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score 0 · Answer 2 · answered May 24 '17 at 10:22

The keyword URL implies a part of the solution

The code takes the last path component of the URL and separates the value into two parts by the - character:

let url = URL(string:"http://www.somezwebsite.com/en/someString/xx-38944672")!
let components = url.lastPathComponent.components(separatedBy: "-")
if components.count == 2 {
    let firstPart = components[0]
    let secondPart = components[1]
    print(firstPart, secondPart)
}

score 0 · Accepted Answer · answered May 24 '17 at 10:33

It can be done this way:

let urlString = "http://www.somezwebsite.com/en/someString/xx-38944672"
        let str = urlString.components(separatedBy: "/").last
        let firstSring = str?.components(separatedBy: "-").first
        let secondString = str?.components(separatedBy: "-").last

Extract information from a string

3 Answers3