黑科技

好久没写博客了，随便扔点东西上来除个草.

其实也说不上是黑科技，就是自己平时折腾linux，折腾vim之类的东西的时候发现的一些小技巧罢了.

esc键太远

平时用vim的时候经常要用到esc键，vim的设计理念本来是让手不用离开主键区，但是esc似乎就在主键区之外. 事实上vim刚被开发出来那会的键盘和现在是不一样的，那个时候esc还在主键区里面. 解决这个东西的方法有几个，我用的方法是把esc和caps lock调换一下，只需要在~/.xprofile里面加上这样一行代码（应该只对linux有效）：

setxkbmap -option caps:swapescape

vim配置文件

set autoindent
set tabstop=4
set shiftwidth=4
set noexpandtab
let g:python_recommended_style=0
set nu
set backspace=2
set mouse=a
syntax on
colorscheme desert

map <space> :
nnoremap j gj
vnoremap j gj
nnoremap k gk
vnoremap k gk
map JJ <esc>
imap JJ <esc>
map JK g$
map KJ g^
imap JK <esc>lg$a
imap KJ <esc>hg^i

map <f7> :%s/[\u4E00-\u9FCC]//gn<cr>

function! P1()
	:%s/\\\\\\{/\\{/g
	:%s/\\\\\\}/\\}/g
	:%s/\\\\\\\\/\\\\/g
endfunction

function! P2()
	:%s/\\\\/\\\\\\\\/g
	:%s/\\{/\\\\\\{/g
	:%s/\\}/\\\\\\}/g
endfunction

call plug#begin('~/.vim/plugged')
Plug 'godlygeek/tabular'
Plug 'plasticboy/vim-markdown'
Plug 'iamcco/markdown-preview.vim'
Plug 'iamcco/mathjax-support-for-mkdp'
Plug 'vim-scripts/fcitx.vim'
Plug 'Shougo/neocomplete.vim'
call plug#end()

autocmd filetype markdown set shell=bash\ -i
let g:instant_markdown_autostart=0
" let g:instant_markdown_slow=1

let g:vim_markdown_folding_disabled=1

"Note: This option must be set in .vimrc(_vimrc).  NOT IN .gvimrc(_gvimrc)!
" Disable AutoComplPop.
let g:acp_enableAtStartup = 0
" Use neocomplete.
let g:neocomplete#enable_at_startup = 1
" Use smartcase.
let g:neocomplete#enable_smart_case = 1
" Set minimum syntax keyword length.
let g:neocomplete#sources#syntax#min_keyword_length = 3

" Define dictionary.
let g:neocomplete#sources#dictionary#dictionaries = {
    \ 'default' : '',
    \ 'vimshell' : $HOME.'/.vimshell_hist',
    \ 'scheme' : $HOME.'/.gosh_completions'
        \ }

" Define keyword.
if !exists('g:neocomplete#keyword_patterns')
    let g:neocomplete#keyword_patterns = {}
endif
let g:neocomplete#keyword_patterns['default'] = '\h\w*'

" Plugin key-mappings.
inoremap <expr><C-g>     neocomplete#undo_completion()
inoremap <expr><C-l>     neocomplete#complete_common_string()

" Recommended key-mappings.
" <CR>: close popup and save indent.
inoremap <silent> <CR> <C-r>=<SID>my_cr_function()<CR>
function! s:my_cr_function()
  return (pumvisible() ? "\<C-y>" : "" ) . "\<CR>"
  " For no inserting <CR> key.
  "return pumvisible() ? "\<C-y>" : "\<CR>"
endfunction
" <TAB>: completion.
inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"
" <C-h>, <BS>: close popup and delete backword char.
inoremap <expr><C-h> neocomplete#smart_close_popup()."\<C-h>"
inoremap <expr><BS> neocomplete#smart_close_popup()."\<C-h>"
" Close popup by <Space>.
"inoremap <expr><Space> pumvisible() ? "\<C-y>" : "\<Space>"

" AutoComplPop like behavior.
"let g:neocomplete#enable_auto_select = 1

" Shell like behavior(not recommended).
"set completeopt+=longest
"let g:neocomplete#enable_auto_select = 1
"let g:neocomplete#disable_auto_complete = 1
"inoremap <expr><TAB>  pumvisible() ? "\<Down>" : "\<C-x>\<C-u>"

" Enable omni completion.
autocmd FileType css setlocal omnifunc=csscomplete#CompleteCSS
autocmd FileType html,markdown setlocal omnifunc=htmlcomplete#CompleteTags
autocmd FileType javascript setlocal omnifunc=javascriptcomplete#CompleteJS
autocmd FileType python setlocal omnifunc=pythoncomplete#Complete
autocmd FileType xml setlocal omnifunc=xmlcomplete#CompleteTags

" Enable heavy omni completion.
if !exists('g:neocomplete#sources#omni#input_patterns')
  let g:neocomplete#sources#omni#input_patterns = {}
endif
"let g:neocomplete#sources#omni#input_patterns.php = '[^. \t]->\h\w*\|\h\w*::'
"let g:neocomplete#sources#omni#input_patterns.c = '[^.[:digit:] *\t]\%(\.\|->\)'
"let g:neocomplete#sources#omni#input_patterns.cpp = '[^.[:digit:] *\t]\%(\.\|->\)\|\h\w*::'

" For perlomni.vim setting.
" https://github.com/c9s/perlomni.vim
let g:neocomplete#sources#omni#input_patterns.perl = '\h\w*->\h\w*\|\h\w*::'

如果只是要用于OI比赛的话，应该只需要前面的一部分.

希望很久以后我还能看得懂这份配置文件，懒得没修改一次就重新写一次解释了.