- collect the errors for statistics and report them after the game (try to get as close as possible to image above)
- persist the errors to disk (SQLite?) so we can do monthly reports
- fix display error with consecutive two newlines
- fix highlight issue with the "function" keyword
- add some real code to type, instead of the same old source file. perhaps randomize which file gets selected when the game is run?
- ignore lines that are just comments