在Swift 3中搜索正则表达式 [英] Search for a Regular Expression in Swift 3

问题描述

此刻，我正在将项目转换为Swift 3.

At the moment I'm converting my project to Swift 3.

我有一个这样的代码块:

I have a code block like this:

let someString = "asd.asABCDEFG.HI"
let regexp = "^\\w*[.]\\w{2}"
let range = someString.rangeOfString(regexp, options: .RegularExpressionSearch)
let result = someString.substringWithRange(range!)

rangeOfString方法在Swift 3中不可用了.有人可以举一个例子来说明如何进行正则表达式搜索.预先感谢.

The rangeOfString method is gone in Swift 3. Can somebody post an example, how a regexp search can be done. Thanks in advance.

推荐答案

在Swift 3中，rangeOfString类似于range(of:options:)，而substringWithRange类似于substring(with:).

In Swift 3 rangeOfString is like range(of:options:) and substringWithRange is like substring(with:).

if let range = someString.range(of:regexp, options: .regularExpression) {
    let result = someString.substring(with:range)
}

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