在Perl调试器和CPAN客户端中，上下箭头不起作用 [英] Arrow up and down does not work any more in Perl debugger and CPAN client

问题描述

我曾经在Mac OS X（v 10.7.5）上使用Active Perl，然后切换到通过mac端口（v 5.12.4）提供的Perl。

现在，当我运行CPAN客户端或Perl调试器时，我无法使用ArrowUp和ArrowDown访问历史记录，提示符下显示的是 ^ [[A 和 ^ [[B $。

至少在调试器上，历史可以工作，我可以访问过去的命令！

解决方案

默认情况下，只有 Term :: ReadLine 处理程序你得到的是 Term :: ReadLine :: Perl 这是非常简单的，不了解像箭头键的东西。你可能要安装 Term :: ReadLine :: Gnu 。

I used to use Active Perl on my Mac OS X (v 10.7.5) and then I switched to the one provided via mac ports (v 5.12.4).

Now when I run the CPAN client or the perl debugger, I cannot access the history using ArrowUp and ArrowDown, what is shown at the prompt is ^[[A and ^[[B respectively.

At least on the debugger the history works, I can access past commands via !num.

解决方案

By default the only Term::ReadLine handler you get is Term::ReadLine::Perl which is quite simple and doesn't understand things like arrow keys. You probably want to install Term::ReadLine::Gnu.

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