Dart: Move cursor in command-line app

Question

1. What methods are there to move the cursor in a command line app?

2. I've tried simpler things, such as using "\b", but that didn't work:

   print("test\ba");

   I expected the output tesa but I get testa (\b was ignored).

Update

Regarding (2), that was the output in the webstorm IDE, however it worked fine in the normal OS X Terminal.

Answer 1

On Linux or OSX you can use ANSI sequences https://en.wikipedia.org/wiki/ANSI_escape_code. On Windows you are pretty much out of luck AFAIK. Take a look at https://pub.dartlang.org/packages/ansicolor for an example how to use ANSI codes.

See also this similar question Clearing the terminal screen in a command-line Dart app