VIM 自动添加cscope.out 数据库

在.vimrc中添加如下代码：

if has("cscope")  
    set csprg=/usr/bin/cscope  
    set csto=0  
    set cst  
    set csverb  
    set cspc=3  
    "add any database in current dir  
    if filereadable("cscope.out")  
        cs add cscope.out  
    "else search cscope.out elsewhere  
    else  
        let cscope_file=findfile("cscope.out",".;")  
        let cscope_pre=matchstr(cscope_file,".*/")  
        if !empty(cscope_file) && filereadable(cscope_file)  
            exe "cs add" cscope_file cscope_pre  
        endif        
    endif  
endif