import Foundation
let pattern = #"{(if '?{?)?(.*?)_en-us(.*?)}"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
{exp:channel:entries channel="" url_title="doors" limit="1"}
{exp:playa:children field="video_slider" var_prefix="videoslider"}
{if {videoslider:total_results} != '0'}
{if {videoslider:count}=='1'}
{if '{video_slider_title_en-us}'!='NULL'}
{video_slider_title_en-us}
{if:else}
Videos
{/if}
{/if}
{if video_thumb != ''}
{if:else}
{exp:url_tube:thumbnail src="{videoslider:video_file}" width="334" height="150"}
{/if}
{if video_thumb_title != ''}
{video_thumb_title}
{if:else}
{videoslider:title}
{/if}
{if {videoslider:count}=={videoslider:total_results}}
{/if}
{/exp:playa:children}
{/exp:channel:entries}
"""#
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