import Foundation
let pattern = #"http://www\.xinhuanet\.com/yuqing/([0-9]*)-([0-9]*)/([0-9]*)/([a-z])_([0-9]*)\.htm"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
</li>
<li class="clearfix">
<h3><a href="http://www.xinhuanet.com/yuqing/2015-10/25/c_128355180.htm" target="_blank">张志安：优秀微信公众号发展离不开这12个字</a></h3>
<i class="imgs"><a href="http://www.xinhuanet.com/yuqing/2015-10/25/c_128355180.htm" targrt="_blank"><img class="lazyload" src="http://www.news.cn/images2014/xh_load.gif" data-original="" /></a></i>
<p class="summary">移动互联网的本质是通过便利的方式将内容连接起来，而优秀微信公众号正是用内容和服务在社群之间建立连接。回归一个起点，一个基本的逻辑，一个人有怎样的风格，这个人所带领的团队，所运营的微信公众号就有怎样的风格，风格是价值观的直接体现，也是这个公众号可持续发展的关键。</p>
<div class="info">
<div class="bdsharebuttonbox clearfix"> </div>
<span class="time">2015-10-25</span>
</div>
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let matches = regex.matches(in: testString, range: stringRange)
var result: [[String]] = []
for match in matches {
var groups: [String] = []
for rangeIndex in 1 ..< match.numberOfRanges {
let nsRange = match.range(at: rangeIndex)
guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue }
let string = (testString as NSString).substring(with: nsRange)
groups.append(string)
}
if !groups.isEmpty {
result.append(groups)
}
}
print(result)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression