.vimrc

" ############################
" # Vim Plug package manager #
" ############################
call plug#begin('~/.vim/plugins')

" fzf, fuzzy file finder
Plug 'junegunn/fzf'

" startify, nicer splash screen
Plug 'mhinz/vim-startify'

" colour scheme
Plug 'arcticicestudio/nord-vim'

" seamless navigation between vim splits and awesomeWM clients
Plug 'intrntbrn/awesomewm-vim-tmux-navigator'

" vim snipmate, giving <tab> autocomplete functionality
Plug 'MarcWeber/vim-addon-mw-utils' " \
Plug 'tomtom/tlib_vim'              "  |-- Required
Plug 'garbas/vim-snipmate'          " /
Plug 'honza/vim-snippets'           " -- provides base snippets

" vimtex, compile latex from within vim with <Leader>ll
Plug 'lervag/vimtex'

" delimmate, automatically end delimeters like (
Plug 'Raimondi/delimitMate'

" tcomment, comment lines and selections with gcc
Plug 'tomtom/tcomment_vim'

" gitgutter, see git changes as you edit
" Plug 'airblade/vim-gitgutter' " -- disabled due to lag

" airline, simple status screen
Plug 'vim-airline/vim-airline'

" repeat, gives nice dot commands to other plugins
Plug 'tpope/vim-repeat'

" easyclip, only modify clipboard with m and y
Plug 'svermeulen/vim-easyclip'
Plug 'svermeulen/vim-yoink'

" sneak, s<key1><key2>. Use cl for s and cc for S
Plug 'justinmk/vim-sneak'

" vimwiki, create own personal wiki and todo lists with <Leader>ww
Plug 'vimwiki/vimwiki'

" easyescape, press jk and kj to exit insert mode
" Plug 'zhou13/vim-easyescape'

" easy-align, ga*& or ga= to align around char
Plug 'junegunn/vim-easy-align'
call plug#end()



" #################### delimitMate #####################

let g:delimitMate_expand_cr = 1

" #################### easyescape ######################

" let g:easyescape_chars = { "j": 1, "k": 1 }
" let g:easyescape_timeout = 300
" cnoremap jk <ESC>
" cnoremap kj <ESC>

" ###################### easy-align #####################
"
" Start interactive EasyAlign in visual mode (e.g. vipga)
xmap ga <Plug>(EasyAlign)

" Start interactive EasyAlign for a motion/text object (e.g. gaip)
nmap ga <Plug>(EasyAlign)

" ##################### vimtex ##########################

let g:tex_flavor='latex'
let g:vimtex_view_method='zathura'
let g:vimtex_quickfix_mode=0
set conceallevel=1
let g:tex_conceal='abdmg'

" table of contents settings (open with <leader>lt)
let g:vimtex_toc_config = {
      \ 'name' : 'TOC',
      \ 'layer_status' : { 'content': 1,
      \                     'label': 0,
      \                     'todo': 1,
      \                     'include': 1 },
      \ 'resize' : 1,
      \ 'split_width' : 50,
      \ 'todo_sorted' : 0,
      \ 'show_help' : 1,
      \ 'show_numbers' : 1,
      \ 'mode' : 2,
      \}

" "##################### statusline ######################

let g:airline_detect_spell=0
let g:airline_detect_spelllang = 0

" ##################### search #########################

" ignore case when searching unless
" some characters are capitalised
set ignorecase
set smartcase

" highlight search matches until space is pressed
set hlsearch
nnoremap <silent> <Space> :nohlsearch<Bar>:echo<CR>
" pressing enter after search searches again with
" spaces replaced by arbitrary whitespace. This
" only happens in latex source files
autocmd BufRead,BufNewFile *.tex cnoremap <expr><Space> '/?' =~ getcmdtype() ? '\_s\+' : ' '

" highlight search as I type
set incsearch

" ################# lines and cursor ###################

" show line numbers
set number

" highlight current line
set cursorline

" use relative line numbers
" set relativenumber " - disabled due to lag

" #################### tabs ############################

set tabstop=4 softtabstop=0
set shiftwidth=4
set expandtab smarttab

" highlight tab characters and show trailing white spaces
set list listchars=tab:\>\ ,trail:%

" #################### gitgutter #######################

set updatetime=500
let g:gitgutter_realtime = 0
let g:gitgutter_eager = 0
nmap ]h <Plug>(GitGutterNextHunk)
nmap [h <Plug>(GitGutterPrevHunk)
omap ih <Plug>(GitGutterTextObjectInnerPending)
omap ah <Plug>(GitGutterTextObjectOuterPending)
xmap ih <Plug>(GitGutterTextObjectInnerVisual)
xmap ah <Plug>(GitGutterTextObjectOuterVisual)

" ##################### easyclip #######################

" remap mark key
nnoremap gm m

" autoformat pastes and toggle with <Leader>cf
let g:yoinkAutoFormatPaste=1
nmap <leader>cf <plug>(YoinkPostPasteToggleFormat)
nmap M <Plug>MoveMotionEndOfLinePlug

" cycle through yanks after pasting
nmap <c-n> <plug>(YoinkPostPasteSwapBack)
nmap <c-p> <plug>(YoinkPostPasteSwapForward)

nmap p <plug>(YoinkPaste_p)
nmap P <plug>(YoinkPaste_P)

" use the + register by default for yanking
set clipboard=unnamedplus
let g:yoinkSyncSystemClipboardOnFocus=1

" ##################### sneak ##########################

map s <Plug>Sneak_s
map S <Plug>Sneak_S

" use smartcase
let g:sneak#use_ic_scs = 1

" ################## colour scheme #####################

" set highlight colours to nord
autocmd VimEnter * hi! link Sneak Search

" enable syntax highlighting
" syntax on " -- not sure why this is disabled

" make comments brighter
augroup nord-overrides
    autocmd!
    autocmd ColorScheme nord highlight Comment ctermfg=14
augroup END

" italic comments
set t_ZH=
set t_ZR=
autocmd VimEnter * highlight Comment cterm=italic

" set the colour scheme to nord
colorscheme nord

" remove underline from current line number
hi CursorLineNr NONE

" ##################### vimwiki #########################

" use markdown formatting
let g:vimwiki_list = [{'path': '~/vimwiki/', 'index': 'README',
                      \ 'syntax': 'markdown', 'ext': '.md'}]

" change indentation for markdown documents
autocmd FileType markdown setlocal shiftwidth=2 tabstop=2

" ##################### fuzzy search ###################

" Use <Leader>o to open to prompt
nnoremap <Leader>o :FZF <CR>
nnoremap <Leader>O :FZF ~/maks2/ <CR>
" Use Nord colours
let g:fzf_colors =
            \ { 'fg':      ['fg', 'Normal'],
            \ 'bg':      ['bg', 'Normal'],
            \ 'hl':      ['fg', 'Comment'],
            \ 'fg+':     ['fg', 'CursorLine', 'CursorColumn', 'Normal'],
            \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
            \ 'hl+':     ['fg', 'Statement'],
            \ 'info':    ['fg', 'PreProc'],
            \ 'border':  ['fg', 'Ignore'],
            \ 'prompt':  ['fg', 'Conditional'],
            \ 'pointer': ['fg', 'Exception'],
            \ 'marker':  ['fg', 'Keyword'],
            \ 'spinner': ['fg', 'Label'],
            \ 'header':  ['fg', 'Comment'] }

" ################### Utility functions #################

" :WC
"   count number of words in latex documents or
"   visual selection with :WC or :'<,'>WC
function! WC()
    let filename = expand("%")
    let cmd = "detex " . filename . " | wc -w | tr -d [:space:]"
    let result = system(cmd)
    echo result . " words"
endfunction
command! -range=% WC <line1>,<line2>w !detex | wc -w

" <Leader>ls
"   take a screenshot and paste result into latex at cursor
function! LatexScreenshot(name)
    if !(len(a:name) == 0)
        let wait = system('latexScreen ' . expand('%:p:h') . " " . a:name)
        normal p
    endif
endfunction
nnoremap <Leader>ls :call LatexScreenshot(input('Image name: '))<CR>

" :TrimWhitespace
"   remove all trailing white spaces from the current document
function! TrimWhitespace()
    let l:save = winsaveview()
    keeppatterns %s/\s\+$//e
    call winrestview(l:save)
endfunction
command! TrimWhitespace call TrimWhitespace()

" #################### miscellaneous ####################

" use file specific changes
set modeline
set modelines=1

" make vim auto-detect filetypes
filetype plugin indent on

" prerequisites for vimwiki
set nocompatible

" no idea what this does, but it fixes a bug causing
" strange "<4;2m" characters to appear with vim-airline
let &t_TI = ""
let &t_TE = ""

" fix backspace key not working on vim8
set backspace=indent,eol,start

" spell checking, use z= in normal and <C-X>s
" (+ <C-N>, <C-p> to cycle) in insert mode
set spelllang=en_gb
set spell

" scrolloff, always show some stuff above/below cursor
set scrolloff=10
set sidescrolloff=30

" auto source .bash_profile to get caps-lock escape
set shell=bash\ -l

" speed up vim a bit
set lazyredraw

" joining comments is nicer
set fo+=j


let g:ascii = [
            \'       o             _______',
            \'        o           /       \',
            \'         o          vvvvvvvvv /|__/|',
            \'          o             I   /O,O   |',
            \'           o      /|/|  I /_____   | ',
            \'            o   /00  | J|/^ ^ ^ \  |   _//|',
            \'               |/^^\ |  |^ ^ ^ ^ |W|  /oo |',
            \'                \m_m_|   \m___m__|_|  \mm_|'
            \]
" don't change directory when opening a file
let g:startify_change_to_dir=1
let g:startify_bookmarks = [ {'m': '~/maks2/'} ]
let g:startify_custom_header =
            \ startify#pad(startify#fortune#boxed() + g:ascii)