At the beginning of a，Swift did not provide regular expression support，So we can only package，For example write a structure，Like this：
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struct MyRegex { let regex: NSRegularExpression? init(_ pattern: String) { regex = try? NSRegularExpression(pattern: pattern, options: .CaseInsensitive) } func match(input: String) -> Bool { if let matches = regex?.matchesInString(input, options: [], range: NSMakeRange(0, (input as NSString).length)) { return matches.count > 0 } else { return false } } } |
In fact, Swift already has support for regular expressions，We just need to：
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let result = name.rangeOfString("^[a-z]", options: .RegularExpressionSearch) |
Direct will be able to get the captured content。
Gets to be a Range ，Tie strings as the corresponding methods，Nature can get captured content。If there is no，Returns an empty，Tie if Optional value binding，Fast and easy!
Original article written by LogStudio：R0uter's Blog » Swift in regular expressions
Reproduced Please keep the source and description link：https://www.logcg.com/archives/1948.html
