vimrc

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" => General
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Sets how many lines of history VIM has to remember
set history=2000

" Sets leader to ','
let mapleader = ','
let g:mapleader = ','

" Sets syntax on
syntax on

" import bundle configuration
if filereadable(expand("~/.vimrc.bundles"))
    source ~/.vimrc.bundles
endif

" Enable filetype plugins
filetype on
filetype indent on
filetype plugin on
filetype plugin indent on

" Cancel backup and swapfile, we use version control system
set nobackup
set noswapfile

" Sets to auto read when a file is modified from outside
set autoread

colorscheme seoul256
set t_Co=256

" :W sudo saves the file
command W w !sudo tee % > /dev/null

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => VIM user interface
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

" Hides the save child slogan
set shortmess=atI
" Set 7 lines to the cursor - when moving vertically using j/k
set scrolloff=7

" Avoid garbled characters in Chinese language windows OS
let $LANG='en'
set langmenu=en
source $VIMRUNTIME/menu.vim

" Turn on wild menu
set wildmenu

" Ignore some types of files
set wildignore=*.swp,*.bak,*.pyc,*.class,*.svn,*~,*.o,.git\*,.hg\*,.svn\*

" Always show the current positon
set ruler

" Height of the command bar
set cmdheight=2

" A buffer becomes hidden when it is abandoned
set hidden
set wildmode=list:longest
set ttyfast

" Configure backspace so it acts as it should act
set backspace=eol,start,indent
set whichwrap+=<,>,h,l

" In many terminal emulators the mouse works just fine, thus enable it.
if has('mouse')
    set mouse-=a
endif

" Increment as decimal
set nrformats=

" Ignore case when searching
set ignorecase

" When searching try to be smart about cases
set smartcase

" Highlight search results
set hlsearch

" Makes search act like search in modern browsers
set incsearch

" Keep search pattern at the center of the screen
nnoremap <silent> n nzz
nnoremap <silent> N Nzz
nnoremap <silent> * *zz
nnoremap <silent> # #zz
nnoremap <silent> g* g*zz


" Don't redraw while executing macros (good performance config)
set lazyredraw

" For regular expressions turn magic on
set magic

" Show matching brackets when text indicator is over them
set showmatch
" How many tenths of a second to blink when matching brackets
set mat=2

" No annoying sound on errors
set noerrorbells
set novisualbell
set t_vb=
set tm=500

" Add a bit extra margin to the left
set foldcolumn=1

set cursorcolumn
set cursorline

" Keep closed file on screen
set t_ti= t_te=

set selection=inclusive
set selectmode=mouse,key

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Colors and Fonts
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Enable syntax highlighting
syntax enable

" Set utf8 as standard encoding and en_US as the standard language
set encoding=utf8

" Use Unix as the standard file type
set ffs=unix,dos,mac

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Files, backups and undo
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Turn backup off, since most stuff is in SVN, git et.c anyway...
set nobackup
set nowb
set noswapfile


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" => Text, tab and indent related
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" Use spaces instead of tabs
set expandtab

" Be smart when using tabs ;)
set smarttab

" 1 tab == 4 spaces
set shiftwidth=4
set tabstop=4

" Linebreak on 500 characters
set lbr
set tw=500

set ai "Auto indent
set si "Smart indent
set wrap "Wrap lines
"Reselect visual block after indent/outdent.
vnoremap < <gv
vnoremap > >gv


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" => Visual mode related
""""""""""""""""""""""""""""""
" Visual mode pressing * or # searches for the current selection
" Super useful! From an idea by Michael Naumann
vnoremap <silent> * :call VisualSelection('f', '')<CR>
vnoremap <silent> # :call VisualSelection('b', '')<CR>


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" => Moving around, tabs, windows and buffers
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" Treat long lines as break lines (useful when moving around in them)
map j gj
map k gk

" Map <Space> to / (search) and Ctrl-<Space> to ? (backwards search)
map <space> /

" Disable highlight when <leader><cr> is pressed
map <silent> <leader>/ :noh<cr>

" Smart way to move between windows
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" Close the current buffer
map <leader>bd :Bclose<cr>

" Close all the buffers
map <leader>ba :1,1000 bd!<cr>

" Useful mappings for managing tabs
map <leader>tn :tabnew<cr>
map <leader>to :tabonly<cr>
map <leader>tc :tabclose<cr>
map <leader>tm :tabmove
map <leader>t<leader> :tabnext

" Let 'tl' toggle between this and the last accessed tab
let g:lasttab = 1
nmap <Leader>tl :exe "tabn ".g:lasttab<CR>
au TabLeave * let g:lasttab = tabpagenr()

" Opens a new tab with the current buffer's path
" Super useful when editing files in the same directory
map <leader>te :tabedit <c-r>=expand("%:p:h")<cr>/

" Switch CWD to the directory of the open buffer
map <leader>cd :cd %:p:h<cr>:pwd<cr>

" Specify the behavior when switching between buffers
try
    set switchbuf=useopen,usetab,newtab
    set stal=2
catch
endtry

" Return to last edit position when opening files (You want this!)
autocmd BufReadPost *
            \ if line("'\"") > 0 && line("'\"") <= line("$") |
            \   exe "normal! g`\"" |
            \ endif
" Remember info about open buffers on close
set viminfo^=%


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" => Status line
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Always show the status line
set laststatus=2

" Format the status line
set statusline=\ %{HasPaste()}%F%m%r%h\ %w\ \ CWD:\ %r%{getcwd()}%h\ \ \ Line:\ %l


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" => Editing mappings
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Remap VIM 0 to first non-blank character
map 0 ^

" Move a line of text using ALT+[jk] or Comamnd+[jk] on mac
nmap <M-j> mz:m+<cr>`z
nmap <M-k> mz:m-2<cr>`z
vmap <M-j> :m'>+<cr>`<my`>mzgv`yo`z
vmap <M-k> :m'<-2<cr>`>my`<mzgv`yo`z

if has("mac") || has("macunix")
    nmap <D-j> <M-j>
    nmap <D-k> <M-k>
    vmap <D-j> <M-j>
    vmap <D-k> <M-k>
endif

" Delete trailing white space on save, useful for Python and CoffeeScript ;)
func! DeleteTrailingWS()
    exe "normal mz"
    %s/\s\+$//ge
    exe "normal `z"
endfunc
autocmd BufWrite *.py :call DeleteTrailingWS()
autocmd BufWrite *.coffee :call DeleteTrailingWS()


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" => Spell checking
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Pressing ,ss will toggle and untoggle spell checking
map <leader>ss :setlocal spell!<cr>

" Shortcuts using <leader>
map <leader>sn ]s
map <leader>sp [s
map <leader>sa zg
map <leader>s? z=

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" => Relative linenumber
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set relativenumber number
au FocusLost * :set norelativenumber number
au FocusGained * :set relativenumber
autocmd InsertEnter * :set norelativenumber number
autocmd InsertLeave * :set relativenumber
function! NumberToggle()
    if(&relativenumber == 1)
        set norelativenumber number
    else
        set relativenumber
    endif
endfunc
nnoremap <C-n> :call NumberToggle()<cr>


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" => File encodings
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
set encoding=utf-8
set fileencodings=ucs-bom,utf-8,cp936,gb18030,big5,euc-jp,euc-kr,latin1
set termencoding=utf-8
" Use Unix as the standard file type
set ffs=unix,dos,mac
set formatoptions+=m
set formatoptions+=B


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" => Autoload configure files
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
autocmd! bufwritepost _vimrc source % " windows。
autocmd! bufwritepost .vimrc source % " linux。

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" => Better paste mode
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! HideNumber()
    if(&relativenumber == &number)
        set relativenumber! number!
    elseif(&number)
        set number!
    else
        set relativenumber!
    endif
    set number?
endfunc
nnoremap <F2> :call HideNumber()<CR>
nnoremap <F3> :set list! list?<CR>
nnoremap <F4> :set wrap! wrap?<CR>
"set paste
set pastetoggle=<F5>            "    when in insert mode, press <F5> to go to
"    paste mode, where you can paste mass data
"    that won't be autoindented

" disbale paste mode when leaving insert mode
au InsertLeave * set nopaste


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" => Misc
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Remove the Windows ^M - when the encodings gets messed up
noremap <Leader>m mmHmt:%s/<C-V><cr>//ge<cr>'tzt'm

" Quickly open a buffer for scribble
map <leader>q :e ~/buffer<cr>

" Quickly open a markdown buffer for scribble
map <leader>x :e ~/buffer.md<cr>

" Toggle paste mode on and off
set completeopt=longest,menu
autocmd InsertLeave * if pumvisible() == 0|pclose|endif
nnoremap <F6> :exec exists('syntax_on') ? 'syn off' : 'syn on'<CR>
hi! link SignColumn   LineNr
hi! link ShowMarksHLl DiffAdd
hi! link ShowMarksHLu DiffChange

"" for error highlight，防止错误整行标红导致看不清
highlight clear SpellBad
highlight SpellBad term=standout ctermfg=1 term=underline cterm=underline
highlight clear SpellCap
highlight SpellCap term=underline cterm=underline
highlight clear SpellRare
highlight SpellRare term=underline cterm=underline
highlight clear SpellLocal
highlight SpellLocal term=underline cterm=underline


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" => Enhanced commandline
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
cnoremap <C-j> <t_kd>
cnoremap <C-k> <t_ku>
cnoremap <C-a> <Home>
cnoremap <C-e> <End>


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" => Tab navigations
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
nnoremap <C-t>     :tabnew<CR>
inoremap <C-t>     <Esc>:tabnew<CR>

map <leader>th :tabfirst<cr>
map <leader>tl :tablast<cr>

map <leader>tj :tabnext<cr>
map <leader>tk :tabprev<cr>
map <leader>tn :tabnext<cr>
map <leader>tp :tabprev<cr>

map <leader>te :tabedit<cr>
map <leader>td :tabclose<cr>
map <leader>tm :tabm<cr>

noremap <leader>1 1gt
noremap <leader>2 2gt
noremap <leader>3 3gt
noremap <leader>4 4gt
noremap <leader>5 5gt
noremap <leader>6 6gt
noremap <leader>7 7gt
noremap <leader>8 8gt
noremap <leader>9 9gt
noremap <leader>0 :tablast<cr>

let g:last_active_tab = 1
nnoremap <silent> <leader>tt :execute 'tabnext ' . g:last_active_tab<cr>
vnoremap <silent> <leader>tt :execute 'tabnext ' . g:last_active_tab<cr>
autocmd TabLeave * let g:last_active_tab = tabpagenr()


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" => Filetype settings
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
autocmd FileType python set tabstop=4 shiftwidth=4 expandtab ai
autocmd FileType ruby set tabstop=2 shiftwidth=2 softtabstop=2 expandtab ai
fun! <SID>StripTrailingWhitespaces()
    let l = line(".")
    let c = col(".")
    %s/\s\+$//e
    call cursor(l, c)
endfun
autocmd FileType c,cpp,java,go,php,javascript,puppet,python,rust,twig,xml,yml,perl autocmd BufWritePre <buffer> :call <SID>StripTrailingWhitespaces()

autocmd BufNewFile *.sh,*.py,*.php,*.rb exec ":call AutoSetFileHead()"
function! AutoSetFileHead()
    if &filetype == 'sh'
        call setline(1, "\#!/bin/bash")
    endif

    if &filetype == 'python'
        call setline(1, "\#!/usr/bin/env python")
        call append(1, "\# encoding: utf-8")
    endif

    if &filetype == 'php'
        call setline(1, "\<\?php")
    endif

    if &filetype == 'ruby'
        call setline(1, "\#!/usr/bin/env ruby")
    endif

    normal G
    normal o
    normal o
endfunc

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" => Quick compile and run
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
map <F10> :call CompileRun()<CR>
func! CompileRun()
    exec "w"
    if &filetype == 'c'
        exec "!g++ % -o %<"
        exec "!time ./%<"
        exec "!rm ./%<"
    elseif &filetype == 'cpp'
        exec "!g++ % -o %<"
        exec "!time ./%<"
        exec "!rm ./%<"
    elseif &filetype == 'java'
        exec "!javac %"
        exec "!time java %<"
        exec "!rm ./%<.class"
    elseif &filetype == 'sh'
        exec "!time bash %"
    elseif &filetype == 'python'
        exec "!time python %"
    elseif &filetype == 'html'
        exec "!chrome % &"
    elseif &filetype == 'go'
        exec "!go build %<"
        exec "!time go run %"
    elseif &filetype == 'mkd'
        exec "!chrome % &"
    elseif &filetype == 'javascript'
        exec "!time node %"
    elseif &filetype == 'coffee'
        exec "!time coffee %"
    elseif &filetype == 'ruby'
        exec "!time ruby %"
    elseif &filetype == 'php'
        exec "!time php %"
    endif
endfunc

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" => Helper functions
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! CmdLine(str)
    exe "menu Foo.Bar :" . a:str
    emenu Foo.Bar
    unmenu Foo
endfunction

function! VisualSelection(direction, extra_filter) range
    let l:saved_reg = @"
    execute "normal! vgvy"

    let l:pattern = escape(@", '\\/.*$^~[]')
    let l:pattern = substitute(l:pattern, "\n$", "", "")

    if a:direction == 'b'
        execute "normal ?" . l:pattern . "^M"
    elseif a:direction == 'gv'
        call CmdLine("Ack \"" . l:pattern . "\" " )
    elseif a:direction == 'replace'
        call CmdLine("%s" . '/'. l:pattern . '/')
    elseif a:direction == 'f'
        execute "normal /" . l:pattern . "^M"
    endif

    let @/ = l:pattern
    let @" = l:saved_reg
endfunction


" Returns true if paste mode is enabled
function! HasPaste()
    if &paste
        return 'PASTE MODE  '
    en
    return ''
endfunction


" Don't close window, when deleting a buffer
command! Bclose call <SID>BufcloseCloseIt()
function! <SID>BufcloseCloseIt()
    let l:currentBufNum = bufnr("%")
    let l:alternateBufNum = bufnr("#")

    if buflisted(l:alternateBufNum)
        buffer #
    else
        bnext
    endif

    if bufnr("%") == l:currentBufNum
        new
    endif

    if buflisted(l:currentBufNum)
        execute("bdelete! ".l:currentBufNum)
    endif
endfunction