title: How to parse a .m file in shell?
body: <p>I need to parse all .m files in a directory and its subdirectories for the occurrent of <code>[POEditor localizedStringWithKey:</code> or <code>[POEditor localizedStringWithKey:[NSString stringWithFormat:</code> then I need to get the <code>NSString</code> between the <code>"</code>. 
  For example: </p>
  
  <p>1st option: <code>[POEditor localizedStringWithKey:@"I need this string"];</code></p>
  
  <p>2nd option <code>[POEditor localizedStringWithKey:[NSString stringWithFormat:@"I need this string with formate %@", [self someFormatedString]]];</code></p>
  
  <p>Does anyone have a clue on how to solve this?</p>
  
  <p>Thanks, David</p>