usefull arrow keys

home/.config/nvim/common.vim

@@ -41,6 +41,23 @@ noremap OO O<ESC>
 nmap H ^
 nmap L $
 
+" usefull functions for arrow keys
+" (and force the user to use hjkl)
+
+" right/left to add/remove a tab in the beginning of the line.
+nmap <Left> <<
+nmap <Right> >>
+" same for visual mode (plus reselecting stuff for visual mode)
+vmap <Left> <gv
+vmap <Right> >gv
+
+" up and down move lines up and down
+nmap <Up> :m -2<CR>
+nmap <Down> :m +1<CR>
+" same for visual mode (plus reselecting stuff for visual mode)
+vmap <Up> :m -2<CR>
+vmap <Down> :m +1<CR>
+
 " hit f3 to toggle search highlighting"
 nnoremap <F3> :set hlsearch!<CR> 
 

home/.config/nvim/main.vim

@@ -41,9 +41,19 @@ Plug 'nvim-tree/nvim-web-devicons'
 Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
 Plug 'junegunn/fzf.vim'
 Plug 'iamcco/markdown-preview.nvim', { 'do': 'cd app && yarn install' }
+runtime markdownpreview.vim
 
 call plug#end()
 
+" no default mappings for vim smoothie (fancy scrolling)
+let g:smoothie_no_default_mappings = 1
+
+" smooth scrolling with J and K instead of <S-Up> and <S-Down>
+nnoremap <unique> J <cmd>call smoothie#do("\<C-D>") <CR>
+vnoremap <unique> J <cmd>call smoothie#do("\<C-D>") <CR>
+nnoremap <unique> K <cmd>call smoothie#do("\<C-U>") <CR>
+vnoremap <unique> K <cmd>call smoothie#do("\<C-U>") <CR>
+
 " Use <Tab> and <S-Tab> to navigate through popup menu"
 inoremap <expr> <Tab>   pumvisible() ? "\<C-n>" : "\<Tab>"
 inoremap <expr> <S-Tab> pumvisible() ? "\<C-p>" : "\<S-Tab>"

home/.config/nvim/markdownpreview.vim

@@ -0,0 +1,98 @@
+" set to 1, nvim will open the preview window after entering the markdown buffer
+" default: 0
+let g:mkdp_auto_start = 0
+
+" set to 1, the nvim will auto close current preview window when change
+" from markdown buffer to another buffer
+" default: 1
+let g:mkdp_auto_close = 1
+
+" set to 1, the vim will refresh markdown when save the buffer or
+" leave from insert mode, default 0 is auto refresh markdown as you edit or
+" move the cursor
+" default: 0
+let g:mkdp_refresh_slow = 0
+
+" set to 1, the MarkdownPreview command can be use for all files,
+" by default it can be use in markdown file
+" default: 0
+let g:mkdp_command_for_global = 0
+
+" set to 1, preview server available to others in your network
+" by default, the server listens on localhost (127.0.0.1)
+" default: 0
+let g:mkdp_open_to_the_world = 0
+
+" use custom IP to open preview page
+" useful when you work in remote vim and preview on local browser
+" more detail see: https://github.com/iamcco/markdown-preview.nvim/pull/9
+" default empty
+let g:mkdp_open_ip = ''
+
+" specify browser to open preview page
+" for path with space
+" valid: `/path/with\ space/xxx`
+" invalid: `/path/with\\ space/xxx`
+" default: ''
+let g:mkdp_browser = ''
+
+" set to 1, echo preview page url in command line when open preview page
+" default is 0
+let g:mkdp_echo_preview_url = 0
+
+" a custom vim function name to open preview page
+" this function will receive url as param
+" default is empty
+let g:mkdp_browserfunc = ''
+
+" options for markdown render
+" mkit: markdown-it options for render
+" katex: katex options for math
+" uml: markdown-it-plantuml options
+" maid: mermaid options
+" disable_sync_scroll: if disable sync scroll, default 0
+" sync_scroll_type: 'middle', 'top' or 'relative', default value is 'middle'
+"   middle: mean the cursor position alway show at the middle of the preview page
+"   top: mean the vim top viewport alway show at the top of the preview page
+"   relative: mean the cursor position alway show at the relative positon of the preview page
+" hide_yaml_meta: if hide yaml metadata, default is 1
+" sequence_diagrams: js-sequence-diagrams options
+" content_editable: if enable content editable for preview page, default: v:false
+" disable_filename: if disable filename header for preview page, default: 0
+let g:mkdp_preview_options = {
+    \ 'mkit': {},
+    \ 'katex': {},
+    \ 'uml': {},
+    \ 'maid': {},
+    \ 'disable_sync_scroll': 0,
+    \ 'sync_scroll_type': 'middle',
+    \ 'hide_yaml_meta': 1,
+    \ 'sequence_diagrams': {},
+    \ 'flowchart_diagrams': {},
+    \ 'content_editable': v:false,
+    \ 'disable_filename': 0,
+    \ 'toc': {}
+    \ }
+
+" use a custom markdown style must be absolute path
+" like '/Users/username/markdown.css' or expand('~/markdown.css')
+let g:mkdp_markdown_css = ''
+
+" use a custom highlight style must absolute path
+" like '/Users/username/highlight.css' or expand('~/highlight.css')
+let g:mkdp_highlight_css = ''
+
+" use a custom port to start server or empty for random
+let g:mkdp_port = ''
+
+" preview page title
+" ${name} will be replace with the file name
+let g:mkdp_page_title = '「${name}」'
+
+" recognized filetypes
+" these filetypes will have MarkdownPreview... commands
+let g:mkdp_filetypes = ['markdown']
+
+" set default theme (dark or light)
+" By default the theme is define according to the preferences of the system
+let g:mkdp_theme = 'dark'

home/.vimrc

@@ -29,6 +29,27 @@ set shortmess+=c
 noremap oo o<ESC>
 noremap OO O<ESC>
 
+" H and L for end and beginning
+nmap H ^
+nmap L $
+
+" usefull functions for arrow keys
+" (and force the user to use hjkl)
+
+" right/left to add/remove a tab in the beginning of the line.
+nmap <Left> <<
+nmap <Right> >>
+" same for visual mode (plus reselecting stuff for visual mode)
+vmap <Left> <gv
+vmap <Right> >gv
+
+" up and down move lines up and down
+nmap <Up> :m -1<CR>
+nmap <Down> :m +1<CR>
+" same for visual mode (plus reselecting stuff for visual mode)
+vmap <Up> :m -1<CR>
+vmap <Down> :m +1<CR>
+
 " hit f3 to toggle search highlighting"
 nnoremap <F3> :set hlsearch!<CR>