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Swift utility class for regular expression
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| import Foundation | |
| class Regexp { | |
| let internalRegexp: NSRegularExpression | |
| let pattern: String | |
| init(_ pattern: String) { | |
| self.pattern = pattern | |
| var error: NSError? | |
| self.internalRegexp = NSRegularExpression( pattern: pattern, options: NSRegularExpressionOptions.CaseInsensitive, error: &error)! | |
| } | |
| func isMatch(input: String) -> Bool { | |
| let matches = self.internalRegexp.matchesInString( input, options: nil, range:NSMakeRange(0, count(input)) ) | |
| return matches.count > 0 | |
| } | |
| func matches(input: String) -> [String]? { | |
| if self.isMatch(input) { | |
| let matches = self.internalRegexp.matchesInString( input, options: nil, range:NSMakeRange(0, count(input)) ) | |
| var results: [String] = [] | |
| for i in 0 ..< matches.count { | |
| results.append( (input as NSString).substringWithRange(matches[i].range) ) | |
| } | |
| return results | |
| } | |
| return nil | |
| } | |
| } |
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