Vim automatically adds the C language above and after the operator

function! Align_space () let      current_line = Getline ('. ')    Let replacement = substitute (Current_line, ' \ ([() a-za-z0-9_]\) \ ([!| ^&=<>%*/+-]\) ', ' \1 \2 ', ' g ') let    newline = substitute (replacement, ' \ ([!| ^&=<>%*/+-]\) \ ([() a-za-z0-9_]\) ', ' \1 \2 ', ' G ') call      setline ('. ', newline) "Call    cursor" (Line ('. '), Col ('. ') + 1) endfunction  autocmd Cursormovedi *.[ CH] Call Align_space ()

Company code specification requires the operator to add spaces before and after the error

To prevent omissions, write a simple vim function

Using the principle of regular expression substitution to automatically add spaces before and after operators when entering operators

Substitution uses the principle of reverse referencing

() a-za-z0-9_ characters that may appear before and after the match operator

!| ^&=<>%*/+-matching operator

A feeling for vim:

1 VIM document is not comprehensive enough, do not know whether the substitute parameters can not move the cursor

2 If you return in the function, the Autocmd cursormovedi configuration function will not be called again unless you exit and enter insert mode.

Legacy issues:

#include <stdio.h> and + + are still adding spaces it feels weird.

Vim automatically adds the C language above and after the operator