import Foundation
let pattern = #".*Version (\S+)"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
//Version 1.0 Aug 31st 2011 -First Release.
//Version 1.1 Sep 29th 2011
//Bug fixed: When using hovercard in hovercard, the inner hovercard shows up as well when parent hovercard opens.
//
//Version 1.2 Sep 30th 2011
//Enhancement: The hovercard now adjust (either open on left or right) in accordance to the view port.
//Added options:
//openOnLeft: force hovercard to open on left. (eg: if the hovered name appear in the end of sentence)
//
//Version 2.0 Nov 8th 2011
//Bug Fixes: zindex issue.
//Enhancements: Supercool built in social profile cards like Twitter and Facebook!
//Added options:
//showTwitterCard: displays a built in twitter card format for a twitter screenname. Maximum 150 twitter lookup per hour.
//twitterScreenName: twitter screen name for the hovercard. If no username/screenname is provided, hovercard attempts to look up for hovered text.
//showFacebookCard: displays a built in facebook card format for a facebook username/pages/events etc. Works best with Facebook pages.
//facebookUserName: facebook username/pages/events/groups for the hovercard. If no username is provided, hovercard attempts to look up for hovered text.
//
//Version 2.1 Nov 22nd 2011
//Enhancement: attribute 'data-hovercard'. You may now use data-hovercard attribute with your label/link etc to set the twitter or facebook usernames.
//Added options:
//showCustomCard: You may now add your own custom data source and display the profile data using existing card format.
//
//Version 2.2 Dec 9th 2011
//Bug Fixes: zindex issue with IE7.
//
//Version 2.3 Dec 15th 2011
//Enhancement: The plugin now auto adjust on the edges of visible window/viewport!
//Added options:
//openOnTop: Set 'openOnTop' to true if you want the hovercard to always open on left.
//customCardJSON: Provide a local json data with showCustomCard. Inherits plugin's social card format/styles.
//delay: Delay the hovercard appearance on hover.
//
//Version 2.4 Apr 12th 2012
//Added options:
//autoAdjust: The plugin's default functionality to auto adjust to the viewport
"""#
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