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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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