import Foundation
let pattern = #"^(?:[A-Z] \d|[^\W\d_]{2,}\.?)(?:[- '’][^\W\d_]+\.?)*$"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = ####################"""
########### Absolutly Fine ################
Mainstreet.
Mainstreet
Main Street
Big New mainstreet
Mainstreet-New
Mains Str.
St. Alexander Street
Übermorgen Straße
John Kennedy Street
Bahnhofstr.
Leonhard-Eck-Str.
Älterweg
Graf-Anton-Weg
Alexanderstraße
Prof.-Ernst-Nathan-Straße
Prof.-Albert-Einstein-Weg
Prof. Ernst-Nathan-Straße
Prof. Albert-Einstein-Weg
########## Not very common but fine!!! ###################
A 1
K 7
H 2
P 1
I 7
E 7
T 3
######## Not okay ################
A
B
Mainstreet #+;:_*´`?=)(/&%$§!
Mainstreet#+;:_*´`?=)(/&%$§!
Mainstreet 2
Mainstreet..
Mainstreet§
"""####################
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