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/,/
/g
但它插入了一个看起来像 ^@
的东西,而不是一个真正的换行符.该文件不是在 DOS 模式下或其他任何东西.
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?
如果你和我一样好奇,请查看问题为什么Vim 的换行符? 也是.
If you are curious, like me, check the question Why is a newline for Vim? as well.
推荐答案
使用
而不是
.
用
替换会在文本中插入一个空字符.要获得换行符,请使用
.但是,当搜索换行符时,您仍然会使用
.这种不对称是由于
和
做稍微不同的事情:
Use
instead of
.
Substituting by
inserts a null character into the text. To get a newline, use
. When searching for a newline, you’d still use
, however. This asymmetry is due to the fact that
and
do slightly different things:
匹配行尾(换行),而
匹配回车.另一方面,在替换中
插入一个空字符而
插入一个换行符(更准确地说,它被视为输入 CR).这是一个使用 Vim 命令行功能的小型非交互式示例来说明这一点(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.
matches an end of line (newline), whereas
matches a carriage return. On the other hand, in substitutions
inserts a null character whereas
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/
/' '+s/a/
/' +wq
(echo 'After:'; xxd test) >> output.txt
more output.txt
Before:
0000000: 6261 720a bar.
After:
0000000: 000a 720a ..r.
换句话说,
已经将字节 0x00 插入到文本中;
已插入字节 0x0a.
In other words,
has inserted the byte 0x00 into the text;
has inserted the byte 0x0a.
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