使用 ruby 接管控制台输出

发布于 2024-11-29 09:19:46 字数 630 浏览 2 评论 0原文

当我从控制台运行 vim 或 top 时，它们能够接管渲染整个控制台。当我退出时，我会返回到控制台。

可以从红宝石中做到这一点吗？作为一个简单的示例，当我运行此命令时，我将如何执行以下操作

# Rakefile
task :clock do
  loop do
    console.render Time.now
    sleep 1
  end
end

，控制台将被清除，第一行将显示时间。当我退出时，我会继续控制台会话，就像我运行 rake Clock 之前一样。

更新

检查了 tictactoe 示例中的 ruby 诅咒后，这里是时钟示例的实现。我在随机线上显示了时钟来演示刷新整个控制台。

#!/usr/bin/env ruby
require 'curses'

loop do
  Curses.clear  
  Curses.setpos(rand * 10, 0)  
  Curses.addstr(Time.now.to_s);
  Curses.refresh
  sleep 1
end

原文

When I run vim or top from a console they are able to take over rendering the whole console. When I quit I'm then returned to the console.

Is it possible to do this from ruby? As a simple example, how would I do the following

# Rakefile
task :clock do
  loop do
    console.render Time.now
    sleep 1
  end
end

when I run this the console would be cleared and the first line would show the time. When I quit I'd then continue the console session as it was before I ran rake clock.

Update

Having checked the tictactoe example for ruby curses here's an implementation of the clock example. I've shown the clock on random lines to demonstrate refreshing the whole console.

#!/usr/bin/env ruby
require 'curses'

loop do
  Curses.clear  
  Curses.setpos(rand * 10, 0)  
  Curses.addstr(Time.now.to_s);
  Curses.refresh
  sleep 1
end

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