import Foundation
let pattern = #"^(?i)(https?:\/\/)?(www\.)?facebook\.com\/group(s)?(\/?\/\d+)?(\/.*)?$"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
Https://wWw.facebook.Com/GROUpS/2233223616820715
httpS://Www.FACEBOOk.cOm/grouP/2233223616820715/?hoisteD_section_header_type=recentLY_seen&multi_permalinks=2744661819010223
https://www.facebook.com/groups/ukrainianenglishclubrachk21312Y
https://www.facebook.com/groups/ukrainianenglishclubrachky/events/fd
Http://wWw.facebook.Com/GROUpS/hhGGGh/22332
http://Www.FACEBOOk.cOm/grouP/2233223616820715/?hoisteD_section_header_type=recentLY_seen&multi_permalinks=2744661819010223
httP://www.facebook.com/groups/ukrainianenglishclubrachk21312Y
http://www.facebook.com/groups/ukrainianenglishclubrachky/events/fd
wWw.facebook.Com/GROUpS/2233223616820715
Www.FACEBOOk.cOm/grouP/2233223616820715/?hoisteD_section_header_type=recentLY_seen&multi_permalinks=2744661819010223
www.facebook.com/groups/ukrainianenglishclubrachk21312Y
www.facebook.com/groups/ukrainianenglishclubrachky/events/fd
facebook.Com/GROUpS/2233223616820715
FACEBOOk.cOm/grouP/2233223616820715/?hoisteD_section_header_type=recentLY_seen&multi_permalinks=2744661819010223
facebook.com/group/ukrainianenglishclubrachk21312Y
facebook.com/groups/ukrainianenglishclubrachky/events/fd
https://www.facebook.com/GROUPS/2233223616820715/?hoisted_section_header_type=recently_seen&multi_permalinks=2744661819010223
"""#
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