Screen scraping API

[migueldeicaza]

Now that I made HeadlessTerminal public, as I need it for fuzzing, perhaps I should surface more information about the contents of the screen and make a handful of internal classes public.

APIs to surface:

Saving:

• save (to: URL, format: SaveFormat = .txt)

Accessing content"

• cols/rows
• cursorLeft/cursorTop
• scrollRegion/marginRegion
• getCell (line: Int, col: Int) -> CharData
• getText (line: Int)
• getAttributedText (line: Int) -> [CharData]

Writing to the screen, some basic operations, could surface more:

• clear ()
• setColor (...)
• setCursorPosition (...)
• write (str)
• getRegionText (...) -> [String]

Record input/output:

• setOutputRecorder (...)
• setInputRecorder (...)