import Foundation
let pattern = #"\/\/\s*(TODO|TDOO|TOOD|TOODO|TODDO)\s*:"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
-- Standard (and with preceding space)
//TODO: Test
//TODO: Test
-- Space after //
// TODO: Test
// TODO: Test
-- Space befre :
//TODO : Test
//TODO : Test
-- Space after // AND befre :
// TODO : Test
// TODO : Test
// TODO : Test
^: "\/\/\s*TODO\s*:"(\s* is "zero or more of a space)
-- Misspellong TOOD
//TOOD: Test
// TOOD: Test
//TOOD : Test
//TOODO: Test
//TOODO : Test
//TODDO : Test
// TODDO : Test
-- Misspellong TDOO
//TDOO: Test
// TDOO: Test
// TDOO : Test
^^ [All above]: "\/\/\s*(TODO|TDOO|TOOD|TOODO|TODDO)\s*:" (with different misspelling options)
"""#
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