配置YouCompleteMe
1. 安装vundle
vundle是一个管理vim插件的工具,使用vundle安装YouCompleteMe比较方便。
按照作者在https://github.com/gmarik/Vundle.vim#about提供的方法安装好vundle。(主要是下载解压,病略微修改 .vimrc)
2. 使用vundle安装YouCompleteMe
主要根据作者自己的建议整理 https://github.com/Valloric/YouCompleteMe
在.vimrc中 vundle部分,添加一行:
Plugin ‘Valloric/YouCompleteMe‘
然后,打开vim,输入命令
:PluginInstall
就会开始自动安装vundle指定的各种插件。
由于要安装clang等,安装过程是非常久的,大概需要一个小时,这个时间完全可以去做些别的。
等安装好后,在.vim/vundle/YouCompleteMe目录下多了一堆目录和文件。
3. 使用YouCompleteMe
YouCompleteMe进行补全时需要查找一个 ycm_global_ycm_extra_conf文件。可以每次在工作目录中放置这个文件,也可以设置全局。全局设置要在.vimrc中添加一行
let g:ycm_global_ycm_extra_conf=‘~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py‘
4. 效果图
YCM作者主页的效果图
实用的 .vimrc 文件
主要参考http://www.cnblogs.com/ma6174/archive/2011/12/10/2283393.html。 加入了前面介绍的ctags, YouCompleteMe的配置。1 " Suzzz 2014.11.03
2 " 主要参考 http://www.cnblogs.com/ma6174/archive/2011/12/10/2283393.html
3 " 额外添加了 ctags, YouCompleteMe等
4 " 主要特点
5
6 "1.按F5可以直接编译并执行C、C++、java代码以及执行shell脚本,按“F8”可进行C、C++代码的调试
7 "2.自动插入文件头 ,新建C、C++源文件时自动插入表头:包括文件名、作者、联系方式、建立时间等,读者可根据需求自行更改
8 "3.映射“Ctrl + A”为全选并复制快捷键,方便复制代码
9 "4.按“F2”可以直接消除代码中的空行
10 "5.“F3”可列出当前目录文件,打开树状文件目录
11 "6. 支持鼠标选择、方向键移动
12 "7. 代码高亮,自动缩进,显示行号,显示状态行
13 "8. 按“Ctrl + P”可自动补全
14 "9. []、{}、()、""、‘ ‘等都自动补全 --- 如果需要{}做函数形式的补全(右括号自动换行,加一个空行,光标定位到空行,可以看下面的修改提示)
15 "10. 使用YouCompleteMe提供C++的自动补全提示,效果类似 Visual Studio那种,可以解析系统头文件
16
17
18 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
19 " """""""""""""" Suzzz """""""""""""""""""""
20 "Vundle相关。Vundle是vim插件管理器,使用它来管理插件很方便,而且功能强大
21 "https://github.com/gmarik/Vundle.vim#about
22
23 set nocompatible " be iMproved, required
24 filetype off " required
25
26 " set the runtime path to include Vundle and initialize
27 set rtp+=~/.vim/bundle/Vundle.vim
28 call vundle#begin()
29
30 " alternatively, pass a path where Vundle should install plugins
31 "call vundle#begin(‘~/some/path/here‘)
32
33 " let Vundle manage Vundle, required
34 Plugin ‘gmarik/Vundle.vim‘
35
36 " plugin on GitHub repo 添加github上的vimn插件,形式非常简单
37 Plugin ‘tpope/vim-fugitive‘ 38 39 40 "语法检查 41 Plugin ‘scrooloose/syntastic‘ 42 "让 syntastic忽略 python 文件 43 let g:syntastic_ignore_files=[".*\.py$"] 44 45 "补全 python 46 Plugin ‘davidhalter/jedi‘ 47 48 Plugin ‘rstacruz/sparkup‘, {‘rtp‘: ‘vim/‘} 49 50 " YouCompleteMe插件,很好的智能提示,基本达到 IDE 级别 51 Plugin ‘Valloric/YouCompleteMe‘ 52 53 54 " All of your Plugins must be added before the following line 所有Vundle管理的插件必须安装在这里之前 55 call vundle#end() " required 56 filetype plugin indent on " required 57 " To ignore plugin indent changes, instead use: 58 "filetype plugin on 59 " YouCompleteMe 通过这个cm_global_ycm_extra_conf来获得补全规则,可以如下指定,也可以每次放置在工作目录 60 let g:ycm_global_ycm_extra_conf=‘~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py‘ 61 "让YouCompleteMe同时利用原来的ctags 62 let g:ycm_collect_identifiers_from_tag_files = 1 63 64 65 66 67 " """"""""""""" By ma6174 """"""""""""""""""""" 68 69 " 显示相关 70 71 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 72 73 "set shortmess=atI " 启动的时候不显示那个援助乌干达儿童的提示 74 75 "winpos 5 5 " 设定窗口位置 76 77 "set lines=40 columns=155 " 设定窗口大小 78 79 "set nu " 显示行号 80 81 set go= " 不要图形按钮 82 83 "color asmanian2 " 设置背景主题 84 85 set guifont=Courier_New:h10:cANSI " 设置字体 86 87 "syntax on " 语法高亮 88 89 autocmd InsertLeave * se nocul " 用浅色高亮当前行 90 91 autocmd InsertEnter * se cul " 用浅色高亮当前行 92 93 "set ruler " 显示标尺 94 95 set showcmd " 输入的命令显示出来,看的清楚些 96 97 "set cmdheight=1 " 命令行(在状态行下)的高度,设置为1 98 99 "set whichwrap+=<,>,h,l " 允许backspace和光标键跨越行边界(不建议) 100 101 "set scrolloff=3 " 光标移动到buffer的顶部和底部时保持3行距离 102 103 set novisualbell " 不要闪烁(不明白) 104 105 set statusline=%F%m%r%h%w\ [FORMAT=%{&ff}]\ [TYPE=%Y]\ [POS=%l,%v][%p%%]\ %{strftime(\"%d/%m/%y\ -\ %H:%M\")} "状态行显示的内容 106 107 set laststatus=1 " 启动显示状态行(1),总是显示状态行(2) 108 109 set foldenable " 允许折叠 110 111 set foldmethod=manual " 手动折叠 112 113 "set background=dark "背景使用黑色 114 115 set nocompatible "去掉讨厌的有关vi一致性模式,避免以前版本的一些bug和局限 116 117 " 显示中文帮助 118 119 if version >= 603 120 121 set helplang=cn 122 123 set encoding=utf-8 124 125 endif 126 127 " 设置配色方案 128 129 "colorscheme murphy 130 131 "字体 132 133 "if (has("gui_running")) 134 135 " set guifont=Bitstream\ Vera\ Sans\ Mono\ 10 136 137 "endif 138 139 140 141 set fencs=utf-8,ucs-bom,shift-jis,gb18030,gbk,gb2312,cp936 142 143 set termencoding=utf-8 144 145 set encoding=utf-8 146 147 set fileencodings=ucs-bom,utf-8,cp936 148 149 set fileencoding=utf-8 150 151 152 153 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 154 155 """""新文件标题"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 156 157 "新建.c,.h,.sh,.java文件,自动插入文件头 158 159 autocmd BufNewFile *.cpp,*.[ch],*.sh,*.java exec ":call SetTitle()" 160 161 ""定义函数SetTitle,自动插入文件头 162 163 func SetTitle() 164 165 "如果文件类型为.sh文件 166 167 if &filetype == ‘sh‘ 168 169 call setline(1,"\#########################################################################") 170 171 call append(line("."), "\# File Name: ".expand("%")) 172 173 call append(line(".")+1, "\# Author: YourName") 174 175 call append(line(".")+2, "\# mail: YourEmail") 176 177 "张鹏 原来的时间形式比较复杂,不喜欢,改变一下 178 179 "call append(line(".")+3, "\# Created Time: ".strftime("%c")) 180 call append(line(".")+3, "\# Created Time: ".strftime("%Y-%m-%d",localtime())) 181 182 call append(line(".")+4, "\#########################################################################") 183 184 call append(line(".")+5, "\#!/bin/bash") 185 186 call append(line(".")+6, "") 187 188 else 189 190 call setline(1, "/*************************************************************************") 191 192 call append(line("."), " > File Name: ".expand("%")) 193 194 call append(line(".")+1, " > Author: YourName") 195 196 call append(line(".")+2, " > Mail: YourEmail ") 197 198 " 同样的 改变时间格式 199 "call append(line(".")+3, " > Created Time: ".strftime("%c")) 200 call append(line(".")+3, " > Created Time: ".strftime("%Y-%m-%d",localtime())) 201 202 call append(line(".")+4, " ************************************************************************/") 203 204 call append(line(".")+5, "") 205 206 endif 207 208 if &filetype == ‘cpp‘ 209 210 call append(line(".")+6, "#include<iostream>") 211 212 call append(line(".")+7, "using namespace std;") 213 214 call append(line(".")+8, "") 215 216 endif 217 218 if &filetype == ‘c‘ 219 220 call append(line(".")+6, "#include<stdio.h>") 221 222 call append(line(".")+7, "") 223 224 endif 225 226 "新建文件后,自动定位到文件末尾 227 228 autocmd BufNewFile * normal G 229 230 endfunc 231 232 " Suzzz: 模仿上面,新建python文件时,添加文件头 233 234 autocmd BufNewFile *py exec ":call SetPythonTitle()" 235 236 func SetPythonTitle() 237 call setline(1,"#!/usr/bin/env python") 238 call append( line("."),"#-*- coding: utf-8 -*-" ) 239 call append(line(".")+1," ") 240 call append(line(".")+2, "\# File Name: ".expand("%")) 241 call append(line(".")+3, "\# Author: Peng Zhang") 242 call append(line(".")+4, "\# mail: YourEmail") 243 call append(line(".")+5, "\# Created Time: ".strftime("%Y-%m-%d",localtime())) 244 endfunc 245 246 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 247 248 "键盘命令 249 250 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 251 252 253 254 nmap <leader>w :w!<cr> 255 256 nmap <leader>f :find<cr> 257 258 259 260 " 映射全选+复制 ctrl+a 261 262 map <C-A> ggVGY 263 264 map! <C-A> <Esc>ggVGY 265 266 map <F12> gg=G 267 268 " 选中状态下 Ctrl+c 复制 269 270 vmap <C-c> "+y 271 272 "去空行 273 274 nnoremap <F2> :g/^\s*$/d<CR> 275 276 "比较文件 277 278 nnoremap <C-F2> :vert diffsplit 279 280 "新建标签 281 282 map <M-F2> :tabnew<CR> 283 284 "列出当前目录文件 285 286 map <F3> :tabnew .<CR> 287 288 "打开树状文件目录
289
290 map <C-F3> \be
291
292 "C,C++ 按F5编译运行
293
294 map <F5> :call CompileRunGcc()<CR>
295
296 func! CompileRunGcc()
297
298 exec "w"
299
300 if &filetype == ‘c‘
301
302 exec "!g++ % -o %<"
303
304 exec "! ./%<"
305
306 elseif &filetype == ‘cpp‘
307
308 exec "!g++ % -o %<"
309
310 exec "! ./%<"
311
312 elseif &filetype == ‘java‘
313
314 exec "!javac %"
315
316 exec "!java %<"
317
318 elseif &filetype == ‘sh‘
319
320 :!./%
321
322 endif
323
324 endfunc
325
326 "C,C++的调试
327
328 map <F8> :call Rungdb()<CR>
329
330 func! Rungdb()
331
332 exec "w"
333
334 exec "!g++ % -g -o %<"
335
336 exec "!gdb ./%<"
337
338 endfunc
339
340 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
341
342 ""实用设置
343
344 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
345
346 " 设置当文件被改动时自动载入
347
348 set autoread
349
350 " quickfix模式
351
352 autocmd FileType c,cpp map <buffer> <leader><space> :w<cr>:make<cr>
353
354 "代码补全
355
356 set completeopt=preview,menu
357
358 "允许插件
359
360 filetype plugin on
361
362 "共享剪贴板
363
364 set clipboard+=unnamed
365
366 "从不备份
367
368 set nobackup
369
370 "make 运行
371
372 :set makeprg=g++\ -Wall\ \ %
373
374 "自动保存
375
376 set autowrite
377
378 set ruler " 打开状态栏标尺
379
380 set cursorline " 突出显示当前行
381
382 set magic " 设置魔术
383
384 set guioptions-=T " 隐藏工具栏
385
386 set guioptions-=m " 隐藏菜单栏
387
388 "set statusline=\ %<%F[%1*%M%*%n%R%H]%=\ %y\ %0(%{&fileformat}\ %{&encoding}\ %c:%l/%L%)\ 389 390 " 设置在状态行显示的信息 391 392 set foldcolumn=0 393 394 set foldmethod=indent 395 396 set foldlevel=3 397 398 set foldenable " 开始折叠 399 400 " 不要使用vi的键盘模式,而是vim自己的 401 402 set nocompatible 403 404 " 语法高亮 405 406 set syntax=on 407 408 " 去掉输入错误的提示声音 409 410 set noeb 411 412 " 在处理未保存或只读文件的时候,弹出确认 413 414 set confirm 415 416 " 自动缩进 417 418 set autoindent 419 420 set cindent 421 422 " Tab键的宽度 423 424 set tabstop=4 425 426 " 统一缩进为4 427 428 set softtabstop=4 429 430 set shiftwidth=4 431 432 " 不要用空格代替制表符 433 434 set noexpandtab 435 436 " 在行和段开始处使用制表符 437 438 set smarttab 439 440 " 显示行号 441 442 set number 443 444 " 历史记录数 445 446 set history=1000 447 448 "禁止生成临时文件 449 450 set nobackup 451 452 set noswapfile 453 454 "搜索忽略大小写 455 456 set ignorecase 457 458 "搜索逐字符高亮 459 460 set hlsearch 461 462 set incsearch 463 464 "行内替换 465 466 set gdefault 467 468 "编码设置 469 470 set enc=utf-8 471 472 set fencs=utf-8,ucs-bom,shift-jis,gb18030,gbk,gb2312,cp936 473 474 "语言设置 475 476 set langmenu=zh_CN.UTF-8 477 478 set helplang=cn 479 480 " 我的状态行显示的内容(包括文件类型和解码) 481 482 "set statusline=%F%m%r%h%w\ [FORMAT=%{&ff}]\ [TYPE=%Y]\ [POS=%l,%v][%p%%]\ %{strftime(\"%d/%m/%y\ -\ %H:%M\")} 483 484 "set statusline=[%F]%y%r%m%*%=[Line:%l/%L,Column:%c][%p%%] 485 486 " 总是显示状态行 487 488 set laststatus=2 489 490 " 命令行(在状态行下)的高度,默认为1,这里是2 491 492 set cmdheight=2 493 494 " 侦测文件类型 495 496 filetype on 497 498 " 载入文件类型插件 499 500 filetype plugin on 501 502 " 为特定文件类型载入相关缩进文件 503 504 filetype indent on 505 506 " 保存全局变量 507 508 set viminfo+=! 509 510 " 带有如下符号的单词不要被换行分割 511 512 set iskeyword+=_,$,@,%,#,- 513 514 " 字符间插入的像素行数目 515 516 set linespace=0 517 518 " 增强模式中的命令行自动完成操作 519 520 set wildmenu 521 522 " 使回格键(backspace)正常处理indent, eol, start等 523 524 set backspace=2 525 526 " 允许backspace和光标键跨越行边界 527 528 set whichwrap+=<,>,h,l 529 530 " 可以在buffer的任何地方使用鼠标(类似office中在工作区双击鼠标定位) 531 532 set mouse=a 533 534 set selection=exclusive 535 536 set selectmode=mouse,key 537 538 " 通过使用: commands命令,告诉我们文件的哪一行被改变过 539 540 set report=0 541 542 " 在被分割的窗口间显示空白,便于阅读 543 544 set fillchars=vert:\ ,stl:\ ,stlnc:545 546 " 高亮显示匹配的括号 547 548 set showmatch 549 550 " 匹配括号高亮的时间(单位是十分之一秒) 551 552 set matchtime=1 553 554 " 光标移动到buffer的顶部和底部时保持3行距离 555 556 set scrolloff=3 557 558 " 为C程序提供自动缩进 559 560 set smartindent 561 562 " 高亮显示普通txt文件(需要txt.vim脚本) 563 564 au BufRead,BufNewFile * setfiletype txt 565 566 "自动补全 567 568 :inoremap ( ()<ESC>i 569 570 :inoremap ) <c-r>=ClosePair(‘)‘)<CR> 571 572 "by Suzzz: 原作者这种设置,输入{会自动补全,并且中间插入一个空行,将光标定位到空行。这对于函数是OK的,但是使用花括号初始化数组、vector时就不方便了。所以改为现在这种。只是补全,然后光标在左右括号中间。 573 ":inoremap { {<CR>}<ESC>O 574 :inoremap { {}<ESC>i 575 576 :inoremap } <c-r>=ClosePair(‘}‘)<CR> 577 578 :inoremap [ []<ESC>i 579 580 :inoremap ] <c-r>=ClosePair(‘]‘)<CR> 581 582 :inoremap " ""<ESC>i 583 584 :inoremap ‘ ‘‘<ESC>i 585 586 function! ClosePair(char) 587 588 if getline(‘.‘)[col(‘.‘) - 1] == a:char 589 590 return "\<Right>" 591 592 else 593 594 return a:char 595 596 endif 597 598 endfunction 599 600 filetype plugin indent on 601 602 "打开文件类型检测, 加了这句才可以用智能补全 603 604 set completeopt=longest,menu 605 606 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 607 608 " CTags的设定 609 610 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 611 612 let Tlist_Sort_Type = "name" " 按照名称排序 613 614 let Tlist_Use_Right_Window = 1 " 在右侧显示窗口 615 616 let Tlist_Compart_Format = 1 " 压缩方式 617 618 let Tlist_Exist_OnlyWindow = 1 " 如果只有一个buffer,kill窗口也kill掉buffer 619 620 let Tlist_File_Fold_Auto_Close = 0 " 不要关闭其他文件的tags 621 622 let Tlist_Enable_Fold_Column = 0 " 不要显示折叠树 623 624 autocmd FileType java set tags+=D:\tools\java\tags 625 626 "autocmd FileType h,cpp,cc,c set tags+=D:\tools\cpp\tags 627 628 "let Tlist_Show_One_File=1 "不同时显示多个文件的tag,只显示当前文件的 629 630 "设置tags 631 632 set tags=tags 633 634 "set autochdir 635 636 637 638 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 639 640 "其他东东 641 642 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" 643 644 "默认打开Taglist 645 646 let Tlist_Auto_Open=1 647 648 """""""""""""""""""""""""""""" 649 650 " Tag list (ctags) 651 652 """""""""""""""""""""""""""""""" 653 654 let Tlist_Ctags_Cmd = ‘/usr/bin/ctags‘ 655 656 let Tlist_Show_One_File = 1 "不同时显示多个文件的tag,只显示当前文件的 657 658 let Tlist_Exit_OnlyWindow = 1 "如果taglist窗口是最后一个窗口,则退出vim 659 660 let Tlist_Use_Right_Window = 1 "在右侧窗口中显示taglist窗口 661 662 " minibufexpl插件的一般设置 663 664 let g:miniBufExplMapWindowNavVim = 1 665 666 let g:miniBufExplMapWindowNavArrows = 1 667 668 let g:miniBufExplMapCTabSwitchBufs = 1 669 let g:miniBufExplModSelTarget = 1
配置
不同于很多vim插件,YCM首先需要编译,另外还需要有配置。在vim启动后,YCM会找寻当前路径以及上层路径的.ycm_extra_conf.py
.在~/.vim/bundle/YouCompleteMe/cpp/ycm/.ycm_extra_conf.py
中提供了默认的模板。也可以参考我的(就在模板上改改而已)。不过这个解决了标准库提示找不到的问题。
一般来说,我会在~
目录下放一个默认的模板,而后再根据不同的项目在当前目录下再拷贝个.ycm_extra_conf.py。
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|
# This file is NOT licensed under the GPLv3, which is the license for the rest
# of YouCompleteMe.
#
# Here's the license text for this file:
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# For more information, please refer to <http://unlicense.org/>
import
os
import
ycm_core
# These are the compilation flags that will be used in case there's no
# compilation database set (by default, one is not set).
# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
flags = [
'-Wall'
,
'-Wextra'
,
#'-Werror',
#'-Wc++98-compat',
'-Wno-long-long'
,
'-Wno-variadic-macros'
,
'-fexceptions'
,
'-stdlib=libc++'
,
# THIS IS IMPORTANT! Without a "-std=<something>" flag, clang won't know which
# language to use when compiling headers. So it will guess. Badly. So C++
# headers will be compiled as C headers. You don't want that so ALWAYS specify
# a "-std=<something>".
# For a C project, you would set this to something like 'c99' instead of
# 'c++11'.
'-std=c++11'
,
# ...and the same thing goes for the magic -x option which specifies the
# language that the files to be compiled are written in. This is mostly
# relevant for c++ headers.
# For a C project, you would set this to 'c' instead of 'c++'.
'-x'
,
'c++'
,
'-I'
,
'.'
,
'-isystem'
,
'/usr/include'
,
'-isystem'
,
'/usr/local/include'
,
'-isystem'
,
'/Library/Developer/CommandLineTools/usr/include'
,
'-isystem'
,
'/Library/Developer/CommandLineTools/usr/bin/../lib/c++/v1'
,
]
# Set this to the absolute path to the folder (NOT the file!) containing the
# compile_commands.json file to use that instead of 'flags'. See here for
# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
#
# Most projects will NOT need to set this to anything; you can just change the
# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
compilation_database_folder =
''
if
os.path.exists( compilation_database_folder ):
database = ycm_core.CompilationDatabase( compilation_database_folder )
else
:
database = None
SOURCE_EXTENSIONS = [
'.cpp'
,
'.cxx'
,
'.cc'
,
'.c'
,
'.m'
,
'.mm'
]
def DirectoryOfThisScript():
return
os.path.
dirname
( os.path.abspath( __file__ ) )
def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
if
not working_directory:
return
list( flags )
new_flags = []
make_next_absolute = False
path_flags = [
'-isystem'
,
'-I'
,
'-iquote'
,
'--sysroot='
]
for
flag
in
flags:
new_flag = flag
if
make_next_absolute:
make_next_absolute = False
if
not flag.startswith(
'/'
):
new_flag = os.path.
join
( working_directory, flag )
for
path_flag
in
path_flags:
if
flag == path_flag:
make_next_absolute = True
break
if
flag.startswith( path_flag ):
path = flag[ len( path_flag ): ]
new_flag = path_flag + os.path.
join
( working_directory, path )
break
if
new_flag:
new_flags.append( new_flag )
return
new_flags
def IsHeaderFile( filename ):
extension = os.path.splitext( filename )[ 1 ]
return
extension
in
[
'.h'
,
'.hxx'
,
'.hpp'
,
'.hh'
]
def GetCompilationInfoForFile( filename ):
# The compilation_commands.json file generated by CMake does not have entries
# for header files. So we do our best by asking the db for flags for a
# corresponding source file, if any. If one exists, the flags for that file
# should be good enough.
if
IsHeaderFile( filename ):
basename
= os.path.splitext( filename )[ 0 ]
for
extension
in
SOURCE_EXTENSIONS:
replacement_file =
basename
+ extension
if
os.path.exists( replacement_file ):
compilation_info = database.GetCompilationInfoForFile(
replacement_file )
if
compilation_info.compiler_flags_:
return
compilation_info
return
None
return
database.GetCompilationInfoForFile( filename )
def FlagsForFile( filename, **kwargs ):
if
database:
# Bear in mind that compilation_info.compiler_flags_ does NOT return a
# python list, but a "list-like" StringVec object
compilation_info = GetCompilationInfoForFile( filename )
if
not compilation_info:
return
None
final_flags = MakeRelativePathsInFlagsAbsolute(
compilation_info.compiler_flags_,
compilation_info.compiler_working_dir_ )
# NOTE: This is just for YouCompleteMe; it's highly likely that your project
# does NOT need to remove the stdlib flag. DO NOT USE THIS IN YOUR
# ycm_extra_conf IF YOU'RE NOT 100% SURE YOU NEED IT.
#try:
# final_flags.remove( '-stdlib=libc++' )
#except ValueError:
# pass
else
:
relative_to = DirectoryOfThisScript()
final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )
return
{
'flags'
: final_flags,
'do_cache'
: True
}
|
YouCompleteMe提供的其他功能
YCM除了提供了基本的补全功能,自动提示错误的功能外,还提供了类似tags的功能:
- 跳转到定义
GoToDefinition
- 跳转到声明
GoToDeclaration
- 以及两者的合体
GoToDefinitionElseDeclaration
可以在.vimrc中配置相应的快捷键。
1
2
3
|
nnoremap <leader>gl :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>gf :YcmCompleter GoToDefinition<CR>
nnoremap <leader>gg :YcmCompleter GoToDefinitionElseDeclaration<CR>
|
另外,YCM也提供了丰富的配置选项,同样在.vimrc中配置。具体请参考
1
2
|
let
g:ycm_error_symbol =
'>>'
let
g:ycm_warning_symbol =
'>*'
|
同时,YCM可以打开location-list来显示警告和错误的信息:YcmDiags。
个人关于ycm的配置如下:
1
2
3
4
5
6
7
|
"
for
ycm
let
g:ycm_error_symbol =
'>>'
let
g:ycm_warning_symbol =
'>*'
nnoremap <leader>gl :YcmCompleter GoToDeclaration<CR>
nnoremap <leader>gf :YcmCompleter GoToDefinition<CR>
nnoremap <leader>gg :YcmCompleter GoToDefinitionElseDeclaration<CR>
nmap <F4> :YcmDiags<CR>
|
YCM提供的跳跃功能采用了vim的jumplist,
往前跳和往后跳的快捷键为Ctrl+O
以及Ctrl+I。
总结
YouCompleteMe
是我用过的最爽的一个自动补全的插件了。之前使用acp时,遇到大文件基本上就卡死了,以至于都不怎么敢使用。由于YCM使用的时C/S结构,部分使用vim脚本编写,部分认为原生代码,使得跑起来速度飞快。
抛弃Vim自带的坑爹的补全吧,抛弃ctags
吧,抛弃cscope
吧,YCM才是终极的补全神器。