Corrected applescript_utils.rb in "Search Safari and Chrome Tabs" Alfred 2 Workflow

applescript_utils.rb

module BrowserTabs
  module AppleScriptUtils
    class AppleScriptError < StandardError; end

    class << self
      def run_file(filename, *args)
        osascript(true, *args)
      end

      def run(src, *args)
        osascript(false, src, *args)
      end

      def escape_str(str)
        str.gsub("\\", "\\\\\\").gsub('"', '\\\\"')
      end

      private

      def osascript(is_file, *args)
        require 'open3'

        src = args.shift unless is_file

        Open3.popen3('osascript', *args) do |stdin, stdout, stderr, thr|
          stdin.write(src) unless is_file
          stdin.close

          if thr.value != 0
              err_msg = stderr.read.chomp
              raise AppleScriptError, "AppleScript error: #{err_msg}"
          end

          stdout.read.chomp
        end
      end
    end
  end
end