title: Can I write a "new command" for Visual Studio 2015 that comments out lines in a txt file?
body: <p>The file is written in a language not supported by Visual Studio (it's the language used to mod Stellaris, a game by Paradox. A very strange language by the way).</p>
  
  <p>They are saved as txt files. the comment in this language is any line that starts with a #</p>
  
  <p>Is it possible, and easy, to write some kind of extension for Visual Studio to comment out lines in a txt file with #?</p>
  
  <p>Maybe I could use find and replace but I'm not sure what the regular expression would be (I don't want to double comment, and I wouldn't be replacing anything, so it would have to be something like "add a # to the begining of any line that doesn't start with a #).</p>
  
  <p>If there's a way to do it find and replace, then there's probably a way to write an extension to add this command too. Or maybe there's already an extension that lets you add random characters at the begining of lines?</p>
  
  <p>Any help appreciated.</p>