.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
" 語法高亮

set smartindent
" 智能對齊

set autoindent
" 自動對齊

set confirm
" 在處理未保存或只讀文件的時候，彈出確認

set tabstop=4
" Tab鍵的寬度

set softtabstop=4
set shiftwidth=4
"  統一縮進爲4


set number
" 顯示行號

set history=50
" 歷史紀錄數

set hlsearch
set incsearch
" 搜索逐字符高亮

set gdefault
" 行內替換

set encoding=utf-8
set fileencodings=utf-8,ucs-bom,shift-jis,gb18030,gbk,gb2312,cp936,utf-16,big5,euc-jp,latin1
" 編碼設置

"colorscheme torte
" 設置顏色主題

"set guifont=Menlo:h16:cANSI
" 設置字體

set langmenu=zn_CN.UTF-8
set helplang=cn
" 語言設置

set cmdheight=2
" 命令行（在狀態行）的高度，默認爲1,這裏是2

set ruler
" 在編輯過程當中，在右下角顯示光標位置的狀態行

set laststatus=2
" 老是顯示狀態行

set showcmd
" 在狀態行顯示目前所執行的命令，未完成的指令片斷亦會顯示出來

set scrolloff=3
" 光標移動到buffer的頂部和底部時保持3行距離

set showmatch
" 高亮顯示對應的括號

set matchtime=5
" 對應括號高亮的時間（單位是十分之一秒）

set autowrite
" 在切換buffer時自動保存當前文件

set wildmenu
" 加強模式中的命令行自動完成操做

set linespace=2
" 字符間插入的像素行數目

set whichwrap=b,s,<,>,[,]
" 開啓Normal或Visual模式下Backspace鍵，空格鍵，左方向鍵，右方向鍵，Insert或replace模式下左方向鍵，右方向鍵跳行的功能。

filetype plugin indent on
" 分爲三部分命令：file on, file plugin on, file indent on.分別表示自動識別文件類型，用文件類型腳本，使用縮進定義文件。

"==================自定義的鍵映射======================

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>
" 括號自動生成

map <F7> :if exists("syntax_on") <BAR>
\    syntax off <BAR><CR>
\  else <BAR>
\syntax enable <BAR>
\  endif
" 單鍵<F7>控制syntax on/off。緣由是有時候顏色太多會妨礙閱讀。

map <F5> :call CompileRunGcc()<CR>
func! CompileRunGcc()
exec "w"
exec "!gcc % -o %<"
exec "! ./%<"
endfunc
" <F5>編譯和運行C程序

map <F6> :call CompileRunGpp<CR>
func! CompileRunGpp()
exec "w"
exec "!g++ % -o %<"
exec "! ./<"
endfunc
" <F6>編譯和運行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設置
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>