import Foundation
let pattern = ##"""
# the opening delimiter
(["'])
# the body is
(?:
# either an escaped delimiter
\\\1
# or
|
# anything except a backslash or a delimiter
(?!\\|\1).
# (can't put \1 in a character class, so use a negative lookahead)
)*
# repeated zero or more times# the closing delimiter
\1
"""##
let regex = try! NSRegularExpression(pattern: pattern, options: .allowCommentsAndWhitespace)
let testString = #"""
{if Server:GetPhpSelf == "/ind'ex.php"}
foo 'hhhh"hhh""hhh' plonk
foo "meep\"meep" plonk
foo 'meep\'meep' plonk
"""#
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