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set expandtab " 设置tab键替换为tabstop规定的空格数
set tabstop=4 " 编辑时tab键占用的空格数
set shiftwidth=4 " 设置tab的间隔（格式化时）
set softtabstop=4 " 设置退格键退格的空格数，让vim把连续的空格当作一个tab
autocmd FileType asm,nasm,vim,sh,makefile set tabstop=4 softtabstop=4 shiftwidth=4 noexpandtab
set showmatch " 在输入括号时光标会短暂地跳到与之相匹配的括号处
set nowrap " 设置自动折行
set textwidth=500 " 设置自动换行的长度
set lbr " 设置自动换行
set foldmethod=syntax " 设置按语法折叠代码
set nofoldenable " 在打开文件时不要折叠
" 自动补全配置
autocmd FileType python set omnifunc=pythoncomplete#Complete
autocmd FileType javascript set omnifunc=javascriptcomplete#CompleteJS
autocmd FileType html set omnifunc=htmlcomplete#CompleteTags
autocmd FileType css set omnifunc=csscomplete#CompleteCSS
autocmd FileType xml set omnifunc=xmlcomplete#CompleteTags
autocmd FileType php set omnifunc=phpcomplete#CompletePHP
autocmd FileType c set omnifunc=ccomplete#Complete
" 要求格式化之后的代码不要移动光标，并且不要删除换行符和空行，保留原来的视图
autocmd BufReadPost,BufWritePre *.html,*.vim,*.sh,*.py normal! g1G=G`"z<CR>
" 在保存时自动使用clang-format格式化代码
augroup FormatAutocmd
autocmd!
autocmd BufWritePre *.c,*.cpp,*.h :let save_cursor = getpos(".")
autocmd BufWritePre *.c,*.cpp,*.h :normal! ggVG
autocmd BufWritePre *.c,*.cpp,*.h :ClangFormat
autocmd BufWritePost *.c,*.cpp,*.h :call setpos('.', save_cursor)
augroup END
command! -nargs=0 ClangFormat :call ClangFormat()
autocmd FileType c,h,cpp,hpp,cc nnoremap <buffer> gg=G :ClangFormat<CR>
" 定义ClangFormat命令：
" 当前文件的各级父目录下如果存在.clang-format，则使用
" 否则使用默认规则，缩进为4
function! ClangFormat()
let clang_format = "clang-format"
" find .clang-format file from cur path upward
let clang_format_file = findfile(".clang-format", ".;")
if clang_format_file != ""
let clang_format = clang_format . " -style=file"
else
let clang_format = clang_format . " -style='{IndentWidth: 4}'"
endif
let save_cursor = getpos(".")
let save_view = winsaveview()
let save_cursor = getpos(".")
let save_view = winsaveview()
execute ":silent %! ".clang_format
call setpos('.', save_cursor)
call winrestview(save_view)
endfunction
" 新建.c/.cpp/.sh/.py文件，自动插入文件头
autocmd BufNewFile *.cpp,*.[ch],*.sh exec ":call SetTitle()"
func SetTitle()
if &filetype == 'sh'
call setline(1,"#!/bin/bash")
call append(line("."), "" )
call append(line(".")+1, "\##########################################################################" )
call append(line(".")+2, "\# File Name : ".expand("%"))
call append(line(".")+3, "\# Encoding : utf-8")
call append(line(".")+4, "\# Author : We-unite")
call append(line(".")+5, "\# Email : weunite1848@gmail.com")
call append(line(".")+6, "\# Created Time : ".strftime("%Y-%m-%d %H:%M:%S",localtime()))
call append(line(".")+7, "\##########################################################################" )
call append(line(".")+8, "")
elseif &filetype =='py'
call setline(1,"#!/usr/bin/env python")
call append(line("."), "" )
call append(line(".")+1, "\##########################################################################" )
call append(line(".")+2, "\# File Name : ".expand("%"))
call append(line(".")+3, "\# Encoding : utf-8")
call append(line(".")+4, "\# Author : We-unite")
call append(line(".")+5, "\# Email : weunite1848@gmail.com")
call append(line(".")+6, "\# Created Time : ".strftime("%Y-%m-%d %H:%M:%S",localtime()))
call append(line(".")+7, "\##########################################################################" )
call append(line(".")+8, "")
else
call setline(1, "/*************************************************************************")
call append(line("."), " > File Name : ".expand("%"))
call append(line(".")+1, " > Encoding : utf-8")
call append(line(".")+2, " > Author : We-unite")
call append(line(".")+3, " > Email : weunite1848@gmail.com ")
call append(line(".")+4, " > Created Time : ".strftime("%Y-%m-%d %H:%M:%S",localtime()))
call append(line(".")+5, " ************************************************************************/")
call append(line(".")+6, "")
if &filetype == 'cpp'
call append(line(".")+7, "#include <iostream>")
call append(line(".")+8, "using namespace std;")
call append(line(".")+9, "")
elseif &filetype == 'c'
call append(line(".")+7, "#include <stdio.h>")
call append(line(".")+9, "")
endif
endif
" 光标移动到文件末尾
normal G
endfunc
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