不一致的Mx对齐，正则表达式对铜的Mx对齐，正则表达式的行为 [英] Inconsistent M-x align-regexp vs. C-u M-x align-regexp behaviour

问题描述

我试着写了Emacs的一些新的对齐规则，发现这个奇怪的和不一致的行为。当前缓冲区的内容：

I've tried to write some new align rules for emacs and found this strange and inconsistent behaviour. Current buffer contents:

"some thing" like => this
   hello => world
and => again

在打字M-x<$c$c>align-regexpRET<$c$c>[[:lower:]]+\(\s-+\)=>RET结果看起来期望：

After typing M-xalign-regexpRET[[:lower:]]+\(\s-+\)=>RET result looks as desired:

"some thing" like => this
             hello => world
             and => again

但经过C-uM-x<$c$c>align-regexpRET<$c$c>[[:lower:]]+\(\s-+\)=>RET<$c$c>1RET<$c$c>1RET<$c$c>yRET我得到这个代替：

"some thing" like => this
   hello          => world
and               => again

同样的（错误的）事情发生，如果我把这个变成对齐-规则列表。如何解决这一问题？我想要得到的结果类似第一。

The same (wrong) thing happens if I put this into align-rules-list. How to fix this? I want to get the results like first.

推荐答案

有趣的问题。

当您运行的命令的在Emacs，记住互动形式 你pre-加工参数。

When you run commands in Emacs, keep in mind that interactive forms are pre-processing arguments for you.

要看看的功能的最终接收，preSS <大骨节病> CX ESC ESC

To see what the function finally receives, press C-x ESC ESC

在这种情况下，您将在前者的情况看：

In this case, you'll see in the former case:

(align-regexp 1 57 "\\(\\s-*\\)[[:lower:]]+\\(\\s-+\\)=>" 1 1 nil)

和这个在后一

(align-regexp 1 57 "[[:lower:]]+\\(\\s-+\\)=>" 1 1 t)

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