Oh, wow. ANSI escape codes -- this takes me back to the mid-80's, when I discovered if I added the ANSI.SYS device driver to my CONFIG.SYS, I could use escape sequences to do Clever Windowing Stuff on the video screen. I graduated from there to using BIOS calls to do the same thing, but much more portably. (Because, strangely enough, some users didn't want to update their CONFIG.SYS.)