Method handle_backspace

src/sys/prompt.rs:254–272

Handle backspace key

(&mut self)

	// Handle backspace key
	fn handle_backspace(&mut self)
	{
		self.compupdate();
		self.histupdate();
		if self.cur > self.offset
		{
			let i = self.cur - self.offset - 1;
			self.ln.remove(i);

			// Use UTF-32
			let s = &self.ln[i..];
			let n = s.len() + 1;

			// Use UTF-8
			let s: String = s.iter().collect();
			print!("\x08{} \x1b[{}D", s, n);
			self.cur -= 1;
		}
	}


	// Handle backward key