“M-"iTerm2/Terminal 上的 vim 绑定不起作用 [英] "M-" bindings in vim on iTerm2/Terminal don't work

问题描述

我注意到 iTerm2 提供了使用Option key as +ESC"(或作为元，但显然这已经过时了).

I noticed that iTerm2 offers the very convenient feature of using "Option key as +ESC" (or as meta, but apparently that's obsolete).

我尝试了它们，选项键在 Bash(set -o emacs 模式)和 Emacs 中按预期工作，但在 Vim 中没有.因此，我不能使用任何M-"绑定.我发现的是:

I tried them both and the option key works as expected in Bash (set -o emacs mode) and Emacs, but not in Vim. Thus, I can't make use of any "M-" bindings. What I've found is that:

• 如果我将选项设置为+ESC"，vim 只会理解 ESC+key，并且不知道我实际上是指 Meta-key.
• 如果我将选项设置为meta"，用option"修改的键就像没有修饰符一样(不知道如何正式测试 vim 从我输入的组合键中理解的内容).

"M-" 映射在 MacVim (7.3.53) 中完美运行，但这不在控制台范围内，不在此问题的范围内.

"M-" mappings work perfectly in MacVim (7.3.53), but that's outside of a console and not in the scope of this question.

我对如何在 Vim、iTerm2 或终端下使这些映射工作感兴趣.

I'm interested in how to make those mappings work in Vim, under iTerm2 or Terminal.

我的规格:

• MAC OS X Lion 10.7.2
• iTerm2 1.0.0.20111020
• vim @7.3.107_0+python26 [通过 MacPorts]

推荐答案

我已经下载了最新的 iTerm2 并试图查看它发送到的内容/Vim 打印的内容 (i<C-v><M-a>) 具有以下设置:

I've downloaded the latest iTerm2 and tried to see what it sent to/what was printed by Vim (i<C-v><M-a>) with the following settings:

• 选项作为选项:

Vim 打印 æ 这在我的法语键盘上是正常的和预期的

Vim prints æ which is normal and expected on my french keyboard

元选项:

Vim 留在那里，等待某事发生.什么都不打印.如果我依次按下 Option 和 a，我只会得到 a.以某种随机顺序按下 Option 和 a 可能会打印 á，这很奇怪且完全出乎意料.

Vim stays there, waiting for something to happen. Nothing is printed. If I press Option and a in sequence I just obtain a. Pressing Option and a in some random order may print á, which is weird and totally unexpected.

+ESC 选项:

Vim 打印 ^[a，意思是转义字符后跟字符 a".

Vim prints ^[a which means "Escape character followed by the character a".

从这些测试来看，如果没有一些假设的黑魔法，Vim 似乎永远不会收到 <M->.

From these tests it appears that Vim will never ever receive <M-> without some hypothetical black magic.

如果您坚持使用Option as +ESC"，似乎您必须将所有自定义<M-something> 映射更改为<Esc>东西.这可能有效，但会使用任何非英语语言编写任何类型的散文都变得痛苦.

If you stick with "Option as +ESC", it seems that you will have to change all your custom <M-something> mappings to <Esc>something. This may work but it will make writing any kind of prose in any non-english language a pain.

我的工作:我保持 Option 键不变，这样我就可以轻松地输入像 œ…«» 这样的字符，我使用 <Leader>(映射到 ,，请参阅 :help mapleader) 以了解我的所有自定义映射.

What I do: I leave the Option key as it is so that I can type characters like œ…«» easily and I use <Leader> (mapped to ,, see :help mapleader) for all my custom mappings.

这里有些人喜欢将其保留给插件使用，并提倡一种更简单且可能更安全的方法.

Some people here like to reserve it for plugins and advocate a somewhat simpler and potentially safer approach.

inoremap <leader>, <C-x><C-o> "my way (copied elsewhere)
inoremap ,, <C-x><C-o>        "another way

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