Ruby Script to detect Emojis and special unicode symbols in files, usage: ruby emoji_detector.rb [FOLDER_PATH] [EXTENSION, ...]

emoji_detector.rb

path, *extensions = ARGV

file_paths = []
extensions.each do |ext|
  file_paths << "#{path}**/*#{ext}"
end

files = Dir.glob(file_paths,0)

regex = /[\u{00AE}\u{203C}\u{2049}\u{2122}\u{2139}\u{2194}-\u{2199}\u{21A9}-\u{21AA}\u{231A}-\u{231B}\u{2328}\u{23CF}\u{23E9}-\u{23F3}\u{23F8}-\u{23FA}\u{24C2}\u{25AA}-\u{25AB}\u{25B6}\u{25C0}\u{25FB}-\u{25FE}\u{2600}-\u{2604}\u{260E}\u{2611}\u{2614}-\u{2615}\u{2618}\u{261D}\u{2620}\u{2622}-\u{2623}\u{2626}\u{262A}\u{262E}-\u{262F}\u{2638}-\u{263A}\u{2640}\u{2642}\u{2648}-\u{2653}\u{2660}\u{2663}\u{2665}-\u{2666}\u{2668}\u{267B}\u{267F}\u{2692}-\u{2697}\u{2699}\u{269B}-\u{269C}\u{26A0}-\u{26A1}\u{26AA}-\u{26AB}\u{26B0}-\u{26B1}\u{26BD}-\u{26BE}\u{26C4}-\u{26C5}\u{26C8}\u{26CE}-\u{26CF}\u{26D1}\u{26D3}-\u{26D4}\u{26E9}-\u{26EA}\u{26F0}-\u{26F5}\u{26F7}-\u{26FA}\u{26FD}\u{2702}\u{2705}\u{2708}-\u{270D}\u{270F}\u{2712}\u{2714}\u{2716}\u{271D}\u{2721}\u{2728}\u{2733}-\u{2734}\u{2744}\u{2747}\u{274C}\u{274E}\u{2753}-\u{2755}\u{2757}\u{2763}-\u{2764}\u{2795}-\u{2797}\u{27A1}\u{27B0}\u{27BF}\u{2934}-\u{2935}\u{2B05}-\u{2B07}\u{2B1B}-\u{2B1C}\u{2B50}\u{2B55}\u{3030}\u{303D}\u{3297}\u{3299}\u{1F004}\u{1F0CF}\u{1F170}-\u{1F171}\u{1F17E}-\u{1F17F}\u{1F18E}\u{1F191}-\u{1F19A}\u{1F1E6}-\u{1F1FF}\u{1F201}-\u{1F202}\u{1F21A}\u{1F22F}\u{1F232}-\u{1F23A}\u{1F250}-\u{1F251}\u{1F300}-\u{1F321}\u{1F324}-\u{1F393}\u{1F396}-\u{1F397}\u{1F399}-\u{1F39B}\u{1F39E}-\u{1F3F0}\u{1F3F3}-\u{1F3F5}\u{1F3F7}-\u{1F4FD}\u{1F4FF}-\u{1F53D}\u{1F549}-\u{1F54E}\u{1F550}-\u{1F567}\u{1F56F}-\u{1F570}\u{1F573}-\u{1F57A}\u{1F587}\u{1F58A}-\u{1F58D}\u{1F590}\u{1F595}-\u{1F596}\u{1F5A4}-\u{1F5A5}\u{1F5A8}\u{1F5B1}-\u{1F5B2}\u{1F5BC}\u{1F5C2}-\u{1F5C4}\u{1F5D1}-\u{1F5D3}\u{1F5DC}-\u{1F5DE}\u{1F5E1}\u{1F5E3}\u{1F5E8}\u{1F5EF}\u{1F5F3}\u{1F5FA}-\u{1F64F}\u{1F680}-\u{1F6C5}\u{1F6CB}-\u{1F6D2}\u{1F6E0}-\u{1F6E5}\u{1F6E9}\u{1F6EB}-\u{1F6EC}\u{1F6F0}\u{1F6F3}-\u{1F6F8}\u{1F910}-\u{1F93A}\u{1F93C}-\u{1F93E}\u{1F940}-\u{1F945}\u{1F947}-\u{1F94C}\u{1F950}-\u{1F96B}\u{1F980}-\u{1F997}\u{1F9C0}\u{1F9D0}-\u{1F9E6}\u{200D}\u{20E3}\u{FE0F}\u{E0020}-\u{E007F}\u{2388}\u{2605}\u{2607}-\u{260D}\u{260F}-\u{2610}\u{2612}\u{2616}-\u{2617}\u{2619}-\u{261C}\u{261E}-\u{261F}\u{2621}\u{2624}-\u{2625}\u{2627}-\u{2629}\u{262B}-\u{262D}\u{2630}-\u{2637}\u{263B}-\u{263F}\u{2641}\u{2643}-\u{2647}\u{2654}-\u{265F}\u{2661}-\u{2662}\u{2664}\u{2667}\u{2669}-\u{267A}\u{267C}-\u{267E}\u{2680}-\u{2691}\u{2698}\u{269A}\u{269D}-\u{269F}\u{26A2}-\u{26A9}\u{26AC}-\u{26AF}\u{26B2}-\u{26BC}\u{26BF}-\u{26C3}\u{26C6}-\u{26C7}\u{26C9}-\u{26CD}\u{26D0}\u{26D2}\u{26D5}-\u{26E8}\u{26EB}-\u{26EF}\u{26F6}\u{26FB}-\u{26FC}\u{26FE}-\u{2701}\u{2703}-\u{2704}\u{270E}\u{2710}-\u{2711}\u{2765}-\u{2767}\u{1F000}-\u{1F003}\u{1F005}-\u{1F0CE}\u{1F0D0}-\u{1F0FF}\u{1F10D}-\u{1F10F}\u{1F12F}\u{1F16C}-\u{1F16F}\u{1F1AD}-\u{1F1E5}\u{1F203}-\u{1F20F}\u{1F23C}-\u{1F23F}\u{1F249}-\u{1F24F}\u{1F252}-\u{1F2FF}\u{1F322}-\u{1F323}\u{1F394}-\u{1F395}\u{1F398}\u{1F39C}-\u{1F39D}\u{1F3F1}-\u{1F3F2}\u{1F3F6}\u{1F4FE}\u{1F53E}-\u{1F548}\u{1F54F}\u{1F568}-\u{1F56E}\u{1F571}-\u{1F572}\u{1F57B}-\u{1F586}\u{1F588}-\u{1F589}\u{1F58E}-\u{1F58F}\u{1F591}-\u{1F594}\u{1F597}-\u{1F5A3}\u{1F5A6}-\u{1F5A7}\u{1F5A9}-\u{1F5B0}\u{1F5B3}-\u{1F5BB}\u{1F5BD}-\u{1F5C1}\u{1F5C5}-\u{1F5D0}\u{1F5D4}-\u{1F5DB}\u{1F5DF}-\u{1F5E0}\u{1F5E2}\u{1F5E4}-\u{1F5E7}\u{1F5E9}-\u{1F5EE}\u{1F5F0}-\u{1F5F2}\u{1F5F4}-\u{1F5F9}\u{1F6C6}-\u{1F6CA}\u{1F6D3}-\u{1F6DF}\u{1F6E6}-\u{1F6E8}\u{1F6EA}\u{1F6ED}-\u{1F6EF}\u{1F6F1}-\u{1F6F2}\u{1F6F9}-\u{1F6FF}\u{1F774}-\u{1F77F}\u{1F7D5}-\u{1F7FF}\u{1F80C}-\u{1F80F}\u{1F848}-\u{1F84F}\u{1F85A}-\u{1F85F}\u{1F888}-\u{1F88F}\u{1F8AE}-\u{1F90F}\u{1F93F}\u{1F94D}-\u{1F94F}\u{1F96C}-\u{1F97F}\u{1F998}-\u{1F9BF}\u{1F9C1}-\u{1F9CF}]/

files.each do |file_name|
  File.open(file_name) do |file|
    file.each_line.with_index do |line, index|
      if line.match(regex)
        puts "found emoji in file: #{File.basename(file_name)} on line: #{index+1}"
      end
    end
  end
end

Example usage to find your iOS source and UI files containing emojis: ruby emoji_detector.rb Projects/ProjectName/MyApp/ .xib .storyboard .swift

Output:

found emoji in file: UISwitch+Rx.swift on line: 27
found emoji in file: UISwitch+Rx.swift on line: 29
found emoji in file: Rx.swift on line: 96
found emoji in file: Rx.swift on line: 112