问题描述
M-x flush-lines ^$
删除所有空白在缓冲区中的行。但是我只想删除额外的空行，也就是说如果有n个连续的空行，我想删除n-1并保留一个。
deletes all blank lines in a buffer. However I only want to delete extra blank lines, that is if there are n consecutive blank lines I want to delete n-1 and keep one.
我知道delete-空白线做了空白行的工作，但我想要一个简单的解决方案，适用于整个缓冲区。
I know that delete-blank-lines does the job for the blank lines under the point, however I want a simple solution which works for the whole buffer.
任何想法如何做到这一点？特别是可以从我的第一个例子修改正则表达式^ $，以仅匹配额外的行？
Any ideas how to do this? Especially is it possible to modify the regex ^$ from my first example to match only the extra lines?
推荐答案
C-x h M-x replace-regexp RET ^ C-q C-j C-q C-j + RET C-q C-j RET
标记整个缓冲区，并用单个空白行替换两个或多个空白行。
which marks the whole buffer and replaces two or more blank lines with a single blank line.
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