search - 如何在Vim中进行不区分大小写的搜索(How to do case insensitive search in Vim)

Question

I'd like to search for an upper case word, for example COPYRIGHT in a file.

(我想搜索大写单词，例如文件中的COPYRIGHT。)

I tried performing a search like:

(我尝试过执行搜索：)

/copyright/i    # Doesn't work

but it doesn't work.

(但它不起作用。)

I know that in Perl, if I give the i flag into a regex it will turn the regex into a case-insensitive regex.

(我知道在Perl中，如果我将i标志放入正则表达式，它会将正则表达式转换为不区分大小写的正则表达式。)

It seems that Vim has its own way to indicate a case-insensitive regex.

(似乎Vim有自己的方式来表示不区分大小写的正则表达式。)

  ask by Haiyuan Zhang translate from so

Answer 1

You need to use the \c escape sequence.

(您需要使用\c转义序列。)

So:

(所以：)

/\ccopyright

To do the inverse (case sensitive matching), use \C instead.

(要进行反向（区分大小写的匹配），请使用\C代替。)