I wrote extension that create split method:
extension String {
func split(splitter: String) -> Array<String> {
return self.componentsSeparatedByString(splitter)
}
}
So in playground I can write:
var str = "Hello, playground"
if str.split(",").count > 1{
var out = str.split(",")[0]
println("output: \(out)") // output: Hello
}
What do I need to make it work with regex like in Java:
str.split("[ ]+")
Because this way it doesn't work.
Thanks,
First, your split function has some redundancy. It is enough to return
return self.componentsSeparatedByString(splitter)
Second, to work with a regular expression you just have to create a NSRegularExpression and then perhaps replace all occurrences with your own "stop string" and finally separate using that. E.g.
let regEx = NSRegularExpression.regularExpressionWithPattern
(splitter, options: NSRegularExpressionOptions(), error: nil)
let stop = "SomeStringThatYouDoNotExpectToOccurInSelf"
let modifiedString = regEx.stringByReplacingMatchesInString
(self, options: NSMatchingOptions(),
range: NSMakeRange(0, countElements(self)),
withTemplate:stop)
return modifiedString.componentsSeparatedByString(stop)
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