import Foundation
let pattern = #"(\d+:\d{4}) (\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3}) ([A-Za-z\n]+) (.*?)(?=\n\d+:|$)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .dotMatchesLineSeparators)
let testString = ####"""
5376:0084 2015-08-07 13:51:29.103 Error ### Error Message ###
5376:0084 2015-08-07 13:51:35.545 Error Discarding invalid session
System.Web.Services.Protocols.SoapException: Verify Session ID failed
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
5376:0084 2015-08-07 13:51:36.013 Error ### Error Message ###
"""####
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