Method handle_down

src/sys/prompt.rs:311–339

Handle down key

(&mut self)

	// Handle down key
	fn handle_down(&mut self)
	{
		self.compupdate();
		let n = self.hist.items.len();
		if n == 0
		{
			return;
		}

		let (bs, i) = match self.hist.pos
		{
			Some(i) => (self.hist.items[i].chars().count(), i + 1),
			None => return,
		};

		let (pos, ln) = if i < n
		{
			(Some(i), self.hist.items[i].clone())
		}
		else
		{
			(None, self.ln.iter().collect())
		};

		let erase = '\x08'.to_string().repeat(bs);
		print!("{}{}", erase, ln);
		self.cur = self.offset + ln.chars().count();
		self.hist.pos = pos;
	}


	// Handle forward key