import Foundation
let pattern = ##"""
^
# Build information should not contain dev and nightly stuff:
(?!.*(nig(ht|th)ly|develop|development))
# Optional compatibility prefix "version-" or "v":
(?<compatibility>[a-z]*-|v)?
# Major, minor and patch numbers:
(?<major>\d+)\.(?<minor>\d+)\.(?<patch>\d+)
# Capture the optional build information:
(?:
[\.-]?
(?<build>.*)
)?
$
"""##
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .allowCommentsAndWhitespace])
let testString = #"""
100.200.300
100.200.300.7068-ls170
v100.200.300-ls213
version-100.200.300
version-100.200.300-ls180
version-100.200.300.11111
100.200.300.7068-ls170
nigthly-100.200.300
nightly-100.200.300.3604-ls587
100.200.300-development
100.200.300-develop
100.200.300-nigthly
"""#
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