import Foundation
let pattern = #"parent\s*\{\s*type\s*\{[^{}]*subtype\s+TestSubType\s*\{[^{}]*element\s+TestElement\s*\{[^{}]*attributes\s*\{[^{}]*value\s+testvalue[^{}]*\}[^{}]*owner\s+person1"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
parent {
type {
subtype TestSubType {
element TestElement {
attributes {
name testname;
description testdescription;
count 1234;
value testvalue;
}
owner person1;
}
}
subtype TestSubType1 {
element TestElement1 {
attributes {
name testname1;
description testdescription1;
count 1;
value 1
}
owner person2;
}
}
subtype TestSubType2 {
element TestElement2 {
attributes {
name testname2;
description testdescription2;
count 2;
value 2
}
owner unknown;
}
}
subtype TestSubType3 {
element TestElement3 {
attributes {
name testname3;
description testdescription3;
count 3;
value 3
}
owner unknown;
}
}
subtype TestSubType3 {
element TestElement4 {
attributes {
name testname4;
description testdescription4;
count 4;
value 4
}
owner unknown;
}
}
subtype TestSubType4 {
element TestElement5 {
attributes {
name testname5;
description testdescription5;
count 5;
value 5
}
owner unknown;
}
}
subtype TestSubType5 {
element TestElement6 {
attributes {
name testname6;
description testdescription6;
count 6;
value 6
}
owner unknown;
}
}
subtype TestSubType6 {
element TestElement7 {
attributes {
name testname7;
description testdescription7;
count 7;
value 7
}
owner unknown;
}
}
subtype TestSubType7 {
element TestElement8 {
attributes {
name testname8;
description testdescription8;
count 8;
value 8
}
owner unknown;
}
}
subtype TestSubType8 {
element TestElement9 {
attributes {
name testname9;
description testdescription9;
count 9;
value 9
}
owner unknown;
}
}
subtype TestSubType9 {
element TestElement10 {
attributes {
name testname10;
description testdescription10;
count 10;
value 10
}
owner unknown;
}
}
subtype TestSubType10 {
element TestElement11 {
attributes {
name testname11;
description testdescription11;
count 11;
value 11
}
owner unknown;
}
}
}
}
"""#
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