vim 自动在操作符 前后加上空格 C语言

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')

    let replacement = substitute(newline,'\([^&]\)\(\s*\)\(&\)\s*\([a-zA-Z0-9_]\)','\1 \3\4','g')

    let newline = substitute(replacement,'\s\+->\s\+','->','g')

    let replacement = newline

    if '"' == matchstr(replacement,'"')

        let newline = substitute(replacement,'\s\+%\s\+','%','g')

    else

        let newline = replacement

    endif

    call setline('.',newline)

    if newline != current_line

        call cursor(line('.'),col('.') + 1)

    endif

endfunction

autocmd CursorMovedI *.[ch] call Align_Space()