组件在Swift中由多个分隔符以字符串分隔
组件在Swift中由多个分隔符以字符串分隔
提问于 2015-12-13 10:17:37
下面是字符串s
"Hi! How are you? I'm fine. It is 6 p.m. Thank you! That's it."我希望将它们分隔到一个数组中，如下所示：
["Hi", "How are you", "I'm fine", "It is 6 p.m", "Thank you", "That's it"]这意味着分隔符应该是". " + "? " + "! "
我试过了：
let charSet = NSCharacterSet(charactersInString: ".?!")
let array = s.componentsSeparatedByCharactersInSet(charSet)但它也会将p.m.分成两个元素。结果：
["Hi", " How are you", " I'm fine", " It is 6 p", "m", " Thank you", " That's it"]我也试过
let array = s.componentsSeparatedByString(". ")它可以很好地分离". "，但是如果我还想分离"? "和"! "，它就会变得混乱。
所以我有办法做到吗？谢谢!
回答 2
Stack Overflow用户
发布于 2019-04-01 06:46:36
如果拆分基础是比句子更深奥的东西，这个扩展可能会起作用。
extension String {
public func components(separatedBy separators: [String]) -> [String] {
var output: [String] = [self]
for separator in separators {
output = output.flatMap { $0.components(separatedBy: separator) }
}
return output.map { $0.trimmingCharacters(in: .whitespaces)}
}
}
let artists = "Rihanna, featuring Calvin Harris".components(separated by: [", with", ", featuring"])页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/34247316
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