import Foundation
let pattern = #"(?<=\/\/\s*COLORS)[\r\n]+(.*)(?=\/\/\s*END\s*COLORS)"#
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .dotMatchesLineSeparators])
let testString = ##"""
// COLORS
$nipiter-green : #158C3F;
$green : #048e3c;
$light-green : #C4E2CF;
$nipiter-red : #e11b1c;
$dark-red : #a11b1b;
$black : #000000;
$dark-gray : #4c4c4c;
$gray : #e4e4e4;
$white : #ffffff;
$transparent-white : rgba(255, 255, 255, 0.59);
$feminist-purple : #2a1736;
$yellow : #ffff73;
$twitter-blue : #5a8dbd;
$facebook-blue : #184f83;
// END COLORS
"""##
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