[英]Emacs: How to automatically insert space after colon in cc-mode derivatives
Suppose I have this code: 假设我有这个代码:
{
"type" : "home",
"number":"212 555-1234"
}
I want my emacs to automatically insert space after colon in some modes. 我希望我的emacs在某些模式下自动在冒号后插入空格。 Particularly I'm using javascript-mode based on cc-mode.
特别是我正在使用基于cc模式的javascript模式。 Can it help?
它有帮助吗?
Thank in advance. 预先感谢。
The simplest way to do this would be something like this (in your .emacs): 最简单的方法就是这样(在你的.emacs中):
(defun my-js-hook ()
(local-set-key ":" '(lambda () (interactive) (insert ": "))))
(add-hook 'js-mode-hook 'my-js-hook)
More sophisticated alternatives include yasnippet or skeleton mode . 更复杂的替代方案包括yasnippet或骨架模式 。 They are probably overkill for something this simple, but are useful tools if you want more sophisticated templating.
对于这么简单的事情来说,它们可能有些过分,但如果你想要更复杂的模板,它们是很有用的工具。
EDIT: I'm not aware of any cc-mode magic that allows for different behaviour inside comments. 编辑:我不知道任何cc模式魔术允许在评论中的不同行为。 I don't use cc-mode much, but I don't see anything obvious in the manual.
我不太多使用cc模式,但我在手册中看不到任何明显的内容。 Here's a bit of code that may do what you want though:
这里有一些代码可以做你想要的但是:
(defun my-js-hook ()
(local-set-key ":"
'(lambda ()
(interactive)
(let ((in-comment-p))
(save-excursion
(setq in-comment-p (comment-beginning)))
(if in-comment-p
(insert ":")
(insert ": "))))))
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