Inspired by Explaining Code using ASCII Art.
Supports box / line drawing, text input and eraser.
go get -u github.com/aca/tdraw
or download from https://github.com/aca/tdraw/releases
tdraw > draw.txt
// tdraw has 4 mode.
ESC: Box(+Undirected line, default)
l: Directed line
t: Text
e: Erase
CTRL-C/CTRL-D: exit
// It might not work if terminal emulator consumes right click(iterm2)
MouseR: Eraser
