[Linux] How to indent spaces in VIM into tab indentation

Some students prefer to use spaces for indentation. Therefore, manyCodeThe row capital contains consecutive and repeated spaces, some of which are four or even eight. Uncle can't bear it.

Vim has some options such as retab that can be used to indent and convert all the files processed by VIM. However, it is so brutal that we do not want Vim to automatically process all the files.

Therefore, it is more appropriate to manually perform the conversion. You can use the following command in VIM:

: % S // \ t/g

Explanation:

The colon at the beginning is in vim.Execute CommandMust begin. Like '/',SEARCH Command.

% Indicates the operation on each row

S indicates replacement

The first '/' indicates the content to be replaced (four consecutive spaces)

The second '/' indicates the content to be replaced with (here '\ T' is the tab)

The third '/' indicates the replacement option ('/G' indicates replacement of the entire line,'/& 'only replaces the first matching item of this line)

Use ': Help: s' in VIM to view detailed instructions.

Above.