如何在Vim中用换行符替换字符 [英] How to replace a character by a newline in Vim

问题描述

我正在尝试用新行替换当前文件中的每个,:

I'm trying to replace each , in the current file by a new line:

:%s/,/\n/g 

但它会插入看起来像^@的内容，而不是实际的换行符.该文件不在DOS模式下.

But it inserts what looks like a ^@ instead of an actual newline. The file is not in DOS mode or anything.

我该怎么办?

如果您像我一样好奇，请检查问题 为什么\还可以是Vim的换行符吗? .

If you are curious, like me, check the question Why is \r a newline for Vim? as well.

推荐答案

使用\r代替\n.

用\n替换会在文本中插入一个空字符.要获取换行符，请使用\r. 搜索换行符时，您仍然会使用\n.这种不对称性是由于\n和\r 所做的事情稍有不同:

Use \r instead of \n.

Substituting by \n inserts a null character into the text. To get a newline, use \r. When searching for a newline, you’d still use \n, however. This asymmetry is due to the fact that \n and \r do slightly different things:

\n匹配行尾(换行符)，而\r匹配回车符.另一方面，在替换中，\n插入一个空字符，而\r插入一个换行符(更准确地说，它被视为输入< CR> ).这是一个小的非交互式示例，使用Vim命令行功能进行了说明(换句话说，您可以将以下内容复制并粘贴到终端中以运行它). xxd显示结果文件的十六进制转储.

\n matches an end of line (newline), whereas \r matches a carriage return. On the other hand, in substitutions \n inserts a null character whereas \r inserts a newline (more precisely, it’s treated as the input <CR>). Here’s a small, non-interactive example to illustrate this, using the Vim command line feature (in other words, you can copy and paste the following into a terminal to run it). xxd shows a hexdump of the resulting file.

echo bar > test
(echo 'Before:'; xxd test) > output.txt
vim test '+s/b/\n/' '+s/a/\r/' +wq
(echo 'After:'; xxd test) >> output.txt
more output.txt

Before:
0000000: 6261 720a                                bar.
After:
0000000: 000a 720a                                ..r.

换句话说，\n已将字节0x00插入到文本中. \r插入了字节0x0a.

In other words, \n has inserted the byte 0x00 into the text; \r has inserted the byte 0x0a.

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