在括号对后将Emacs设置为智能自动线？ [英] Set Emacs to smart auto-line after a parentheses pair?

问题描述

我有电对模式（这不是真正特别相关的，因为这可能适用于任何自动配对模式或甚至手动括号），但是简而言之，我想要这样，以便我有这样的情况：

I have electric-pair-mode on (which isn't really particularly relevant, as this could apply to any auto-pairing mode or even manual parens), but in a nutshell, I'd like it so that in the case I have:

function foo（）{|}

（其中 | 是标记）

如果我按Enter键，我想自动进入

If I press enter, I would like to have it automatically go to

function foo() {
|
}

这也意味着

function foo（|）{}

将成为

function foo(
|
){}

我已经有事情要照顾缩进，但我不知道如何说如果我在任何空的一对匹配的括号内，当我按回车，实际上插入两个新线，把我放在第一个。

I already have things to take care of the indentation, but I'm not sure how to say "if I'm inside any empty pair of matched parenthesis, when I press return, actually insert two new lines and put me at the first one".

谢谢！

推荐答案

这是我在init档案，我从Magnar Sveen的 .emacs.d

Here is what I have in my init file, I got this from Magnar Sveen's .emacs.d

(defun new-line-dwim ()
  (interactive)
  (let ((break-open-pair (or (and (looking-back "{") (looking-at "}"))
                             (and (looking-back ">") (looking-at "<"))
                             (and (looking-back "(") (looking-at ")"))
                             (and (looking-back "\\[") (looking-at "\\]")))))
    (newline)
    (when break-open-pair
      (save-excursion
        (newline)
        (indent-for-tab-command)))
    (indent-for-tab-command)))

您可以将其绑定到您选择的键。我已经将它绑定到 M-RET ，但如果需要，可以将其绑定到 RET 。线条

You can bind it to a key of your choice. I have bound it to M-RET but if you want, you can bind it to RET. The lines

(or (and (looking-back "{") (looking-at "}"))
    (and (looking-back ">") (looking-at "<"))
    (and (looking-back "(") (looking-at ")"))
    (and (looking-back "\\[") (looking-at "\\]")))

检查光标是否在 {|} ， [|] ，（$）$ / code>或> |< （html）

check if cursor is at {|}, [|], (|) or >|< (html).

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