GetSize returns the current size of the terminal associated with fd.

IsTerminal returns whether the passed object is a terminal or not.

NewMaxWidthWriter is a Writer that supports a limit of characters on every line, but doesn't do any word wrapping automatically.

NewPunchCardWriter is a NewWordWrapWriter that limits the line width to 80 columns.

NewResponsiveWriter creates a Writer that detects the column width of the terminal we are in, and adjusts every line width to fit and use recommended terminal sizes for better readability.

NewWordWrapWriter is a Writer that supports a limit of characters on every line and does auto word wrapping that respects that limit.

TTY helps invoke a function and preserve the state of the terminal, even if the process is terminated during execution.

SafeFunc is a function to be invoked by TTY.