Convert HTML into Markdown for use in SwiftUI Text views.

html-to-markdown-swiftui-text.swift

//
// For use in SwiftUI Text() views
// Supports Italic, Bold and Links
// Feedback welcome!

extension String {
    @available(iOS 15, *)
    func toMarkdown() -> String {
      var transformed = self
          .replacingOccurrences(of: "<i>\\s?+", with: "*", options: .regularExpression, range: nil) /// italic
          .replacingOccurrences(of: "\\s?+</i>", with: "*", options: .regularExpression, range: nil) /// italic
          .replacingOccurrences(of: "<b>\\s?+", with: "**", options: .regularExpression, range: nil) /// bold
          .replacingOccurrences(of: "\\s?+</b>", with: "**", options: .regularExpression, range: nil) /// bold
          .replacingOccurrences(of: "<strong>\\s?+", with: "**", options: .regularExpression, range: nil) /// bold
          .replacingOccurrences(of: "\\s?+</strong>", with: "**", options: .regularExpression, range: nil) /// bold

      if #available(iOS 16.0, *) {
          transformed = transformed
              .replacing(/<a\s+href=.(.*?).>(.*)<\/a>/.ignoresCase()) { match in
                  return "[\(match.2)](\(match.1))"
              }
      }

      return transformed
          .replacingOccurrences(of: "<[^>]+>", with: "", options: .regularExpression, range: nil)  /// cleanup misc html
    }
}

// Example:
Text(.init(myText.toMarkdown()))