term_cursor

一个用于操作终端光标位置的纯Rust crate！还允许清除屏幕！

用法

    extern crate term_cursor as cursor;

    fn main() {
        // Clear the screen. Does not reset the cursor position!
        print!("{}", cursor::Clear);
        // Position the cursor at column 5 and row 10 and print "Hello world!".
        print!("{}Hello world!", cursor::Goto(5, 10));
        // Go up a line. Does not reset the column of the cursor!
        print!("{}I'm above", cursor::Up(1));

        // Let's do the same thing again, with the second API.
        cursor::clear().expect("Clear failed");
        cursor::set_pos(5, 10).expect("Setting the cursor position failed");
        print!("Hello world!");
        let (x, _y) = cursor::get_pos().expect("Getting the cursor position failed");
        cursor::set_pos(x, 9).expect("Set failed again");
        print!("I'm above");

        // To finish off the example, move the cursor down 2 lines.
        // That's where the command prompt will return once the program finishes.
        // We don't the command prompt to overprint our stuff!
        print!("{}", cursor::Goto(0, 12));
    }

注意事项

term_cursor的二维坐标系范围：x in 0..WIDTH 和 y in 0..HEIGHT，其中 WIDTH 和 HEIGHT 是终端缓冲区的字符尺寸。

将光标定位在范围外并打印文本是 未定义行为！ 您的文本可能会换行，负索引可能被转换为正索引，或者您的程序可能崩溃。这完全取决于平台。

您有责任确保所有绘图都在范围内。为了获取终端的尺寸，我建议使用crate term_size。