import Foundation
// WARNING: You included a flag that Swift doesn't support: U
// When this flag is set, it inverts the "greediness" of the quantifiers so that they are not greedy by default, but become greedy if followed by '?'.
// As an alternative, this effect can also be achieved by setting a (?U) modifier setting within the pattern or by a question mark behind a quantifier (e.g. .*?).
let pattern = ##"""
^(?:(?<!\/\/|\/\*|<!--).)* #check if commented out
<[a-z][a-z0-9]*?\b #find start of a tag
(?:.(?![^?]>))+ #Must not find > between start and class unless ?>
class=(["']) #Find class and opening quotes
(?:(?!\1).)* \bmatch\b (?:(?!\1).)* #see if our tag is in between the quotes
\1 #closing quotes
.*(?<!\?)> #find first > without ? in front of it
"""##
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .caseInsensitive, .allowCommentsAndWhitespace])
let testString = #"""
<h1 class="match">Match list</h1>
<p class="match">Simple class element.</p>
<p></p> <h6 class='more match classes'> more classes different comma</h6>
<fdf <?php echo 'data="extra data test to disturb the page."'; ?> class='incluEdit match classes' > dffd
<div class='hoppa match more classes' <?=$zooi ?> > nested elements </div></div>
// <h1 class='match more classes'> no Match list</h1>
/* <h1 class='match more classes'> no Match list</h1>
<!-- <h1 class='match more classes'> no Match list</h1>
<p class='nomatch more classes'>shouldn't match</p>
"""#
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