How to opt out from "Fit lines to terminal height"?

[carljohnson93]

It makes absolutely no sense to not display data that I need to display, I mean any information; User must be able to reach it by scrolling, it really makes no sense, so please tell me is there a way to disable that "feature" and log all I need to and not only what this library allows to?

[ehaynes99]

It absolutely does makes sense. Scrollback is not a feature of terminals; it's a feature of terminal emulators. This is an important distinction. Whatever app you run to "get a terminal" has its own custom implementation of logic to retain previous output and give you a means to view it (scroll, search, etc.). This is an important distinction, because from the perspective of the terminal, that area doesn't exist. Thus, a library like this one that updates terminal text can't update those lines; it would merely spew a bunch of random intermediate state into the scrollback

E.g. if your terminal is 2 lines tall, and you're trying to update 4 lines:

• 4 lines would be written, but 2 of them would be pushed "off screen" and captured by your emulator
• on the next update, it would replace 2 lines with 4, pushing 2 more out of bounds
• rinse & repeat for all updates

Say you were incrementally adding 3 dots to each line, the editor's scrollback would look like:

first
second
first.
second.
first..
second..
first...
second...
third...       # <-- visible area starts here
fourth...