我注意到 iTerm2 提供了非常方便的功能，可以使用“Option key as +ESC”（或作为元，但是显然这已经过时了）。
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 中却不行。因此，我无法使用任何“M-”绑定。
我发现：
- 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指的是 Meta-key。
- 如果我将 option 设置为“meta”，则用“option”修改的键的行为就像没有修饰符一样（不知道如何正式测试 vim 从我键入的组合键中理解的内容）。
“M-”映射在 MacVim (7.3.53) 中完美工作，但那不在控制台之外，不在这个问题的范围内。
我感兴趣的是如何使这些映射在 Vim 中的 iTerm2 或 Terminal 下工作。
我的规格：
- MAC OS X Lion 10.7.2
- iTerm2 1.0.0.20111020
- vim @7.3.107_0+python26 [尽管MacPorts]
I noticed that iTerm2 offers the very convenient feature of using "Option key as +ESC" (or as meta, but apparently that's obsolete).
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:
- if I set option to "+ESC", vim just understands ESC+key, and has no idea I actually meant Meta-key.
- if I set option to "meta", keys modified with "option" behave just as without a modifier (don't know how to formally test what vim understands from a key combination that I'm typing).
"M-" mappings work perfectly in MacVim (7.3.53), but that's outside of a console and not in the scope of this question.
I'm interested in how to make those mappings work in Vim, under iTerm2 or Terminal.
My specs:
- MAC OS X Lion 10.7.2
- iTerm2 1.0.0.20111020
- vim @7.3.107_0+python26 [though MacPorts]
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我已经下载了最新的 iTerm2 并尝试查看它发送到的内容/Vim 打印的内容 (
i)，设置如下：Option作为选项：
Vim 打印
æ这是正常的，在我的法语键盘上是正常的选项作为元：
Vim 呆在那里，等待事情发生。没有打印任何内容。如果我依次按 Option 和
a，我只会获得a。以某种随机顺序按 Option 和a可能会打印á，这很奇怪并且完全出乎意料。选项为+ESC：
Vim 打印
^[a这意味着“转义字符后跟字符 a”。从这些测试来看，如果没有一些假设的黑魔法，Vim 永远不会收到
如果您坚持使用“Option as +ESC”，则似乎您必须将所有自定义 映射更改为
;某事 我所做的：我保留 Option 键不变，这样我就可以轻松键入
œ…«»之类的字符，并使用,，请参阅:help mapleader) 了解我的所有自定义映射。这里的一些人喜欢将其保留给插件，并提倡一种更简单且可能更安全的方法。
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:Option as Option:
Vim prints
æwhich is normal and expected on my french keyboardOption as Meta:
Vim stays there, waiting for something to happen. Nothing is printed. If I press Option and
ain sequence I just obtaina. Pressing Option andain some random order may printá, which is weird and totally unexpected.Option as +ESC:
Vim prints
^[awhich means "Escape character followed by the character a".From these tests it appears that Vim will never ever receive
<M->without some hypothetical black magic.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.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.Some people here like to reserve it for plugins and advocate a somewhat simpler and potentially safer approach.
我将选项键设置为普通，发现 Vim 将它们视为 绑定。因此，例如，我在 .vimrc 中有此映射设置，以便在插入模式下移动到单词的末尾：
I left my option key to act as Normal and discovered that Vim saw them as
<T-bindings. So, for example, I have this mapping setup in my .vimrc to move to the end of a word when in Insert mode:以下是我在
iterm2（版本：3.4.23）中的关键设置：Esc+xterm控制序列可以启用modifyOtherKeys模式< img src="https://i.sstatic.net/6lVu6.png" alt="在此处输入图像描述">
Here were the key settings in
iterm2(version:3.4.23) for me:Esc+xterm control sequence can enable modifyOtherKeys mode