.vimrc

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" Lot of stuff is from the Internetz, especially from
" https://github.com/s3rvac/dotfiles/blob/master/vim/.vimrc
" and
" https://github.com/amix/vimrc/blob/master/vimrcs/basic.vim
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" Vundle config
set nocompatible              " be iMproved, required
filetype off                  " required

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let g:netrw_banner = 0		" disable banner
let g:netrw_liststyle = 3 	" tree view

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call plug#begin('~/.vim/plugged')

Plug 'prabirshrestha/async.vim'
Plug 'prabirshrestha/vim-lsp'
Plug 'ajh17/vimcompletesme'
Plug 'itchyny/lightline.vim'
Plug 'Townk/vim-autoclose'

" Initialize plugin system
call plug#end()

if executable('clangd')
    augroup lsp_clangd
        autocmd!
        autocmd User lsp_setup call lsp#register_server({
                    \ 'name': 'clangd',
                    \ 'cmd': {server_info->['clangd']},
                    \ 'whitelist': ['c', 'cpp', 'objc', 'objcpp'],
                    \ })
        autocmd FileType c setlocal omnifunc=lsp#complete
        autocmd FileType cpp setlocal omnifunc=lsp#complete
        autocmd FileType objc setlocal omnifunc=lsp#complete
        autocmd FileType objcpp setlocal omnifunc=lsp#complete
    augroup end
endif

function! s:on_lsp_buffer_enabled() abort
    setlocal omnifunc=lsp#complete
    setlocal signcolumn=yes
    if exists('+tagfunc') | setlocal tagfunc=lsp#tagfunc | endif
    nmap <buffer> gd <plug>(lsp-definition)
    nmap <buffer> gs <plug>(lsp-document-symbol-search)
    nmap <buffer> gS <plug>(lsp-workspace-symbol-search)
    nmap <buffer> gr <plug>(lsp-references)
    nmap <buffer> gi <plug>(lsp-implementation)
    nmap <buffer> gt <plug>(lsp-type-definition)
    nmap <buffer> <leader>rn <plug>(lsp-rename)
    nmap <buffer> [g <plug>(lsp-previous-diagnostic)
    nmap <buffer> ]g <plug>(lsp-next-diagnostic)
    nmap <buffer> K <plug>(lsp-hover)
    inoremap <buffer> <expr><c-f> lsp#scroll(+4)
    inoremap <buffer> <expr><c-d> lsp#scroll(-4)

    let g:lsp_format_sync_timeout = 1000
    autocmd! BufWritePre *.rs,*.go call execute('LspDocumentFormatSync')

	nnoremap <Esc>d :LspDefinition<cr>
	nnoremap <Esc>h :LspHover<cr>
	nnoremap <Esc>rn :LspRename<cr>
	nnoremap <Esc>rf :LspReference<cr>
	nnoremap <Esc>ne :LspNextError<cr>
	nnoremap <Esc>e :LspNextError<cr>
	nnoremap <Esc>pe :LspPreviousError<cr>
	nnoremap <Esc>ne :LspNextError<cr>    " refer to doc to add more commands
endfunction

" Bash like keys for the command line
cnoremap <C-A>		<Home>
cnoremap <C-E>		<End>
cnoremap <C-K>		<C-U>
cnoremap <C-P> 		<Up>
cnoremap <C-N> 		<Down>

" Use j/k to move virtual lines instead of physical ones
noremap <silent> <expr> j (v:count == 0 ? 'gj' : 'j')
noremap <silent> <expr> k (v:count == 0 ? 'gk' : 'k')
" Stay in visual mode when indenting. You will never have to run gv after
" performing an indentation.
vnoremap < <gv
vnoremap > >gv

" Make Ctrl-e jump to the end of the current line in the insert mode. This is
" handy when you are in the middle of a line and would like to go to its end
" without switching to the normal mode.
inoremap <C-e> <C-o>$

" taglist plugin
"Toggle Tag list
nnoremap <silent> <F4> :TlistToggle<CR>
let Tlist_Exist_OnlyWindow = 1 " if you are the last, kill yourself
"let Tlist_Use_Right_Window = 1 " split to the right side of the screen
let Tlist_GainFocus_On_ToggleOpen = 1 " Jump to taglist window on open.
let Tlist_File_Fold_Auto_Close = 1


" Hitting space in normal/visual mode will make the current search disappear.
noremap <silent> <Space> :silent nohlsearch<CR>

" Disable arrows keys (I use exclusively h/j/k/l).
noremap <Up> <Nop>
noremap <Down> <Nop>
noremap <Left> <Nop>
noremap <Right> <Nop>

function! s:JoinWithoutSpaces()
	normal! gJ
	" Remove any whitespace.
	if matchstr(getline('.'), '\%' . col('.') . 'c.') =~ '\s'
		normal! dw
	endif
endfunction
noremap <silent> J :call <SID>JoinWithoutSpaces()<CR>

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set nocompatible        " Disable vi compatibility.
set undolevels=200      " Number of undo levels.
set ttyfast             " Improves redrawing for newer computers.
set nobackup            " Disable backup files.
set noswapfile          " Disable swap files.

" Splitting.
set splitright          " Open new vertical panes in the right rather than left.
set splitbelow          " Open new horizontal panes in the bottom rather than top.

set secure              " Forbid loading of .vimrc under $PWD.
set nomodeline          " Modelines have been a source of vulnerabilities.

set autoindent          " Indent a new line according to the previous one.
set copyindent          " Copy (exact) indention from the previous line.
set nopreserveindent    " Do not try to preserve indention when indenting.
set nosmartindent       " Turn off smartindent.
set nocindent           " Turn off C-style indent.
set fo+=q               " Allow formatting of comments with "gq".
set fo-=r fo-=o         " Turn off automatic insertion of comment characters.
set fo+=j               " Remove a comment leader when joining comment lines.

set gcr=n:blinkon0		" turn off blinking cursor

" Whitespace.
set tabstop=4           " Number of spaces a tab counts for.
set shiftwidth=4        " Number of spaces to use for each step of indent.
set shiftround          " Round indent to multiple of shiftwidth.
set noexpandtab         " Do not expand tab with spaces.
set path+=**			" Enable recursive path
set wrapscan			" Wrap search around

set go-=T				 " Hide the toolbar:

" Searching.
set hlsearch            " Highlight search matches.
set incsearch           " Incremental search.
" Case-smart searching (make /-style searches case-sensitive only if there
" is a capital letter in the search expression).
set ignorecase
set smartcase

" Show trailing whitespace
match ErrorMsg '\s\+$'

" When editing a file, always jump to the last cursor position
au BufReadPost *
	\ if ! exists("g:leave_my_cursor_position_alone") |
	\     if line("'\"") > 0 && line ("'\"") <= line("$") |
	\         exe "normal g'\"" |
	\     endif |
	\ endif

set statusline=%<%1*(%M%R)%f(%F)%=\ [%n]%1*%-19(%2*\ %03lx%02c(%p%%)\ %1*%)%O'%3*%02b%1*'
" now set it up to change the status line based on mode
au InsertEnter * hi User1 term=inverse,bold ctermbg=darkblue ctermfg=cyan guibg=#18163e guifg=grey
au InsertLeave * hi User1 term=inverse,bold ctermbg=cyan ctermfg=darkblue guibg=grey guifg=#0d0c22

" Toggle copy and paste modus with <F2>
nnoremap <F2> :set invpaste paste?<CR>
imap <F2> <C-O><F2>
set pastetoggle=<F2>

colorscheme vombatidae
" set color scheme for GUI mode
if has("gui_running")
		set guifont=Monospace\ 10  " use this font
		set lines=30       " height = 50 lines
		set columns=100        " width = 100 columns
		"set selectmode=key,cmd
		"set keymodel=
		colorscheme torte
endif
" forget current search term
nmap <silent> <C-n> :noh<CR>

" rebuild cscope and tags db in current directory
map <C-X> <ESC>:!ectags -R<CR><CR>:!cscope -kcbqR<CR><CR>
map <C-Y> <ESC>:!ectags -R<CR><CR>
map <C-A> <ESC>:cs add ./cscope.out

set tags=tags
set tags+=~/.tags

set showmatch				" Show matching brackets
set errorformat=%A%f:%l:\ %m,%-Z%p^,%-C%.%#
filetype plugin on
filetype indent on
set laststatus=2

" set dark background
set bg=dark
syntax on " Enable syntax highlighting
let sh_minlines=100
let sh_maxlines=600
set synmaxcol=300
set spellfile=~/.vim/spellfile.add
set wildmenu				" Enable wildmenu
							" Ignore compiled files
set wildignore=*.o,*~,*.pyc,*/.git/*,*/.hg/*,*/.svn/*,*/.DS_Store

autocmd BufNewFile,BufRead COMMIT_EDITMSG set filetype=gitcommit

" Spell checking
map <F6> <Esc>:setlocal spell spelllang=en<CR>
map <F7> <Esc>:setlocal nospell<CR>
setlocal spell spelllang=en

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

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

" Absatz auf textwidth runterbrechen
map <Esc>a gqap
" Ganzes Dokument auf textwidth runterbrechen
map <Esc>q gggqG

map <leader>j gJ

hi SpellBad term=reverse ctermfg=white ctermbg=darkred guifg=#ffffff guibg=#7f0000 gui=underline
"hi SpellCap guifg=#ffffff guibg=#7f007f
"hi SpellRare guifg=#ffffff guibg=#00007f gui=underline
hi SpellLocal term=reverse ctermfg=black ctermbg=darkgreen guifg=#ffffff guibg=#7f0000 gui=underline

" Rechtschreibkorrektur mit <esc>-l zwischen en und de umschalten
let langcnt = 0
let spellst = ["de", "en"]
function Sel_lang()
  let g:langcnt = (g:langcnt+1) % len(g:spellst)
  let lang = g:spellst[g:langcnt]
  echo "language " . lang . " selected"
  exe "set spelllang=" . lang
  exec "set spell"
endfunction
nmap <Esc>l  :call Sel_lang()<CR>
" spell checking off by default
set nospell

nmap <Esc>o	:set bg=dark<CR>
nmap <Esc>p	:set bg=light<CR>

" Use silver_searcher with Ack
if executable('ag')
	let g:ackprg = 'ag --vimgrep'
endif

set ruler

autocmd BufNewFile,BufRead ferm.conf setf ferm
autocmd BufNewFile,BufRead *.ferm setf ferm

hi mailHeader      ctermfg=Gray
hi mailSubject     ctermfg=Red
hi mailEmail       ctermfg=Blue
hi mailSignature   ctermfg=DarkRed
hi mailQuoted1     ctermfg=Darkyellow
hi mailQuoted2     ctermfg=Green

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" Show line numbers
set number
" Show relative number
set relativenumber
" Show the current line
set cursorline


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ab VG Viele Grüsse
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" Jump to the previous/next tab.
"noremap J gT
"noremap K gt
noremap { gT
noremap } gt
" Close tabs with Ctrl + w
noremap <leader>w :tabclose<cr>
" Save all 
noremap <leader>s :w<cr>
" Open new tab
noremap <leader>t :tabnew<cr>
" Quitall short
noremap <leader>q :quitall<cr>