import Foundation
let pattern = #"""
(?(DEFINE)
(?<item>\s*(?:(?&curly)|(?&square))|[^\[\{]*)
(?<attr>\s+\w+="[^"]*")
(?<curly>\{(\w+)(?&attr)*\}(?&item)*\{\/\w+\})
(?<square>\[(\w+)(?&attr)*\](?&item)*\[\/\w+\])
)\[tab(?&attr)*\](?&item)*\[\/tab\]
"""#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
{jmstabs type="horizontal" theme="two" nav="left"}
[tab title="Tab title 1"]Tab content 1[/tab]
[tab title="Tab title 2"]Tab content 2[/tab]
[tab title="Tab title 3"]
{jmstabs}
[tab title="Tab child 1"]Tab child 1[/tab]
[tab title="Tab child 2"]Tab child 2[/tab]
{/jmstabs}
[/tab]
{/jmstabs}
"""#
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