add markdown workflow plugins

.config/nvim/init.vim

@@ -8,6 +8,8 @@
 " Junegunn Choi
 " Tim Pope
 
+" this config does not set nocompatible - neovim does this automatically
+" this config does not set filetype plugin - vim-sensible does this
 " }}}
 " ================================================================================
 " PLUGIN INSTALLATION - handled by VIM-PLUG {{{
@@ -56,6 +58,12 @@ Plug 'mhartington/nvim-typescript', {'do': './install.sh'}
 Plug 'valloric/matchtagalways'
 Plug 'alvan/vim-closetag'
 
+" Markdown Workflow
+Plug 'reedes/vim-pencil' " provide md convenience functions like hard/softwrap
+Plug 'junegunn/goyo.vim' " provide distraction free writing
+Plug 'junegunn/limelight.vim' " provide even distraction free-er writing (lowlight paragraphs)
+Plug 'rhysd/vim-grammarous' " integrate vim with languagetool for grammar checking (needs java8)
+
 " For async completion
 Plug 'Shougo/deoplete.nvim' " automatic suggestions, can also perhaps be changed for newer plugs
 Plug 'w0rp/ale' " asynchronous linting - might be superseded by lsp or coc.nvim at some point
@@ -97,6 +105,44 @@ augroup nerd_loader
         \| endif
 augroup END
 
+" PLUGIN: markdown-group
+" set .markdown, .md to both use the default mkd filetype which vim-markdown
+" uses as its syntax
+au! BufRead,BufNewFile *.markdown set filetype=mkd
+au! BufRead,BufNewFile *.md       set filetype=mkd
+" automatically enables markdown plugins for md files, as well as plaintext
+augroup markdown
+  autocmd!
+  autocmd FileType mkd  call pencil#init()
+  autocmd FileType txt  call pencil#init()
+augroup END
+" enable syntax highlighting for codeblocks WITHIN markdown
+let g:markdown_fenced_languages = ['html', 'python', 'bash=sh', 'javascipt', 'go']
+
+" PLUGIN: vim-pencil
+" set default wrap mode to hard - I should test which mode works better for
+" me, though I would venture a guess that hard is preferable
+let g:pencil#wrapModeDefault = 'hard'   " default is 'hard'
+
+" PLUGIN: goyo
+" set up functions for entering/exiting distraction free mode, or leaving it
+function! s:goyo_enter()
+  " remove the tmux status bar for actual distraction free environment
+  silent !tmux set status off
+  " maximize the tmux pane that vim is in if any (usually I have vim open as the only pane)
+  silent !tmux list-panes -F '\#F' | grep -q Z || tmux resize-pane -Z
+  " enable limelight which highlights whatever paragraph you are in and lowlights the rest
+  Limelight
+endfunction
+function! s:goyo_leave()
+  silent !tmux set status on
+  silent !tmux list-panes -F '\#F' | grep -q Z && tmux resize-pane -Z
+  Limelight!
+endfunction
+" actually call the functions on entering/leaving goyo
+autocmd! User GoyoEnter nested call <SID>goyo_enter()
+autocmd! User GoyoLeave nested call <SID>goyo_leave()
+
 " PLUGIN: DEOPLETE
 " enable deoplete at startup
 let g:deoplete#enable_at_startup = 1
@@ -241,6 +287,15 @@ nnoremap <leader><C-e> :NERDTreeVCS<CR>
 " open current nerdtree with current file highlighted
 nnoremap <leader>E :NERDTreeFind<CR>
 
+" Mostly dealing with Prose writing from here on out
+" Format current Paragraph (esp useful in prose writing)
+nnoremap <silent> <leader>q gqap
+xnoremap <silent> <leader>q gq
+nnoremap <silent> <leader>Q vapJgqap
+
+" Enter distraction free prose mode with F11
+noremap <F11> :Goyo<CR>
+
 " }}}
 " ================================================================================
 " END