CSC in vimrc

csc.vim

function! BuildOutput(output)
    let winnum = bufwinnr('BUILD')
    if winnum != -1
        if winnr() != winnum
            exec winnum . "wincmd w"
        endif
    else
        belowright split BUILD
        setlocal buftype=nofile
        resize 15
    endif

    normal! ggdG
    call append(0, split(a:output, '\v\n'))
endfunction

function! CSC(file)
    let command = "csc " . a:file
    let results = system(command)
    call BuildOutput(command . "\r\n" . results)
endfunction

nnoremap <leader>bc :w!<CR>:call CSC(expand("%"))<CR>