import Foundation
let pattern = ##"<([^>\s]+)[^>]*>(?:\s*(?:br \/>| | | | | | | | )\s*)*<\/\1>"##
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
<td><img width="100%" style="padding-bottom: 5px;" src="http://portalvhdsy6f8km33yt638.blob.core.windows.net/mediacontainer/20150827-GLC-header.gif" alt="" /></td><b > </b>
<br />
<b> </b>
<p></p>
<td><br /></td>
<td></td>
CLEARLY CONFUSED HERE:
<b><br /></b>
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let substitutionString = #""#
let result = regex.stringByReplacingMatches(in: testString, range: stringRange, withTemplate: substitutionString)
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