import Foundation
let pattern = #"^LIN[\s\S]*(?=^UNS)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
UNB+UNOC:3+O0013001550GDID0000Z6H:14+80585:14+200218:1455+8'
UNH+1+ORDERS:D:96B:UN'
BGM+120+4016026958'
DTM+4:20200218:102'
NAD+BY+437750'
NAD+SU+0000080585'
NAD+OB+0000080585'
NAD+DP+4000::9++Cronus Company:Cronus GmbH & Co. KG+Musterstrasse 3+Kirchdorf++12345+DE'
CUX+2:EUR'
TOD+6++DAP'
LIN+00010++079790040080030:SA'
PIA+1+079790040080030:SA'
IMD+F++:::DIN 7979 D Stahl blank | 8x30 Zylin'
QTY+12:10,000:PCE'
PRI+AAA:23,56:::100:PCE'
SCC+1'
QTY+1:10,000'
DTM+2:20200223:102'
LIN+00020++079790040080040:SA'
PIA+1+079790040080040:SA'
IMD+F++:::DIN 7979 D Stahl blank | 8x40 Zylin'
QTY+12:10,000:PCE'
PRI+AAA:24,58:::100:PCE'
SCC+1'
QTY+1:10,000'
DTM+2:20200223:102'
LIN+00030++009128009060016:SA'
PIA+1+009128009060016:SA'
IMD+F++:::DIN 912 Stahl 8.8 blank | M6x16 Zyl'
QTY+12:100,000:PCE'
PRI+AAA:2,36:::100:PCE'
SCC+1'
QTY+1:100,000'
DTM+2:20200223:102'
UNS+S'
UNT+35+1'
UNZ+1+8'
"""#
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