.vimrc

"Configuration file for vim
set modelines=0        " CVE-2007-2438

" Normally we use vim-extensions. If you want true vi-compatibility
" remove change the following statements
set nocompatible    " Use Vim defaults instead of 100% vi compatibility
set backspace=2        " more powerful backspacing

" Don't write backup file if vim is being called by "crontab -e"
au BufWrite /private/tmp/crontab.* set nowritebackup nobackup
" Don't write backup file if vim is being called by "chpass"
au BufWrite /private/etc/pw.* set nowritebackup nobackup
"onfiguration file for vim
set modelines=0" CVE-2007-2438

" Normally we use vim-extensions. If you want true vi-compatibility
" remove change the following statements
set nocompatible" Use Vim defaults instead of 100% vi compatibility
set backspace=2" more powerful backspacing

syntax on
" 语法高亮

set smartindent
" 智能对齐

set autoindent
" 自动对齐

set confirm
" 在处理未保存或只读文件的时候，弹出确认

set tabstop=4
" Tab键的宽度

set softtabstop=4
set shiftwidth=4
"  统一缩进为4


set number
" 显示行号

set history=50
" 历史纪录数

set hlsearch
set incsearch
" 搜索逐字符高亮

set gdefault
" 行内替换

set encoding=utf-8
set fileencodings=utf-8,ucs-bom,shift-jis,gb18030,gbk,gb2312,cp936,utf-16,big5,euc-jp,latin1
" 编码设置

"colorscheme torte
" 设置颜色主题

"set guifont=Menlo:h16:cANSI
" 设置字体

set langmenu=zn_CN.UTF-8
set helplang=cn
" 语言设置

set cmdheight=2
" 命令行（在状态行）的高度，默认为1,这里是2

set ruler
" 在编辑过程中，在右下角显示光标位置的状态行

set laststatus=2
" 总是显示状态行

set showcmd
" 在状态行显示目前所执行的命令，未完成的指令片段亦会显示出来

set scrolloff=3
" 光标移动到buffer的顶部和底部时保持3行距离

set showmatch
" 高亮显示对应的括号

set matchtime=5
" 对应括号高亮的时间（单位是十分之一秒）

set autowrite
" 在切换buffer时自动保存当前文件

set wildmenu
" 增强模式中的命令行自动完成操作

set linespace=2
" 字符间插入的像素行数目

set whichwrap=b,s,<,>,[,]
" 开启Normal或Visual模式下Backspace键，空格键，左方向键，右方向键，Insert或replace模式下左方向键，右方向键跳行的功能。

filetype plugin indent on
" 分为三部分命令：file on, file plugin on, file indent on.分别表示自动识别文件类型，用文件类型脚本，使用缩进定义文件。

"==================自定义的键映射======================

vnoremap $1 <esc>`>a)<esc>`<i(<esc>
vnoremap $2 <esc>`>a]<esc>`<i[<esc>
vnoremap $3 <esc>`>a}<esc>`<i{<esc>
vnoremap $$ <esc>`>a"<esc>`<i"<esc>
vnoremap $q <esc>`>a'<esc>`<i'<esc>
vnoremap $e <esc>`>a"<esc>`<i"<esc>
" 括号自动生成

map <F7> :if exists("syntax_on") <BAR>
    syntax off <BAR><CR>
  else <BAR>
syntax enable <BAR>
  endif
" 单键<F7>控制syntax on/off。原因是有时候颜色太多会妨碍阅读。

map <F5> :call CompileRunGcc()<CR>
func! CompileRunGcc()
exec "w"
exec "!gcc % -o %<"
exec "! ./%<"
endfunc
" <F5>编译和运行C程序

map <F6> :call CompileRunGpp<CR>
func! CompileRunGpp()
exec "w"
exec "!g++ % -o %<"
exec "! ./<"
endfunc
" <F6>编译和运行C++程序

" Don't write backup file if vim is being called by "crontab -e"
au BufWrite /private/tmp/crontab.* set nowritebackup
" Don't write backup file if vim is being called by "chpass"
au BufWrite /private/etc/pw.* set nowritebackup


"cscope设置
if has("cscope")
  set csprg=/usr/bin/cscope
  "set cscopequickfix=s-,c-,d-,i-,t-,e-
  set csto=0
  set cst
  set nocsverb
  " add any database in current directory
  if filereadable("cscope.out")
      cs add cscope.out
  " else add database pointed to by environment
  elseif $CSCOPE_DB != ""
      cs add $CSCOPE_DB
  endif
  set csverb
endif
nmap <C->s :cs find s <C-R>=expand("<cword>")<CR><CR>    "search for this c symbol
nmap <C->g :cs find g <C-R>=expand("<cword>")<CR><CR>
nmap <C->c :cs find c <C-R>=expand("<cword>")<CR><CR>
nmap <C->t :cs find t <C-R>=expand("<cword>")<CR><CR>    "search for this string
nmap <C->e :cs find e <C-R>=expand("<cword>")<CR><CR>
nmap <C->f :cs find f <C-R>=expand("<cfile>")<CR><CR>
nmap <C->i :cs find i ^<C-R>=expand("<cfile>")<CR>$<CR>
nmap <C->d :cs find d <C-R>=expand("<cword>")<CR><CR>