Alternate markdown-preview plugin

Improve tables in markdown

init.vim

@@ -140,6 +140,12 @@
         " Plug 'suan/vim-instant-markdown', {'for': 'markdown'}
         Plug 'instant-markdown/vim-instant-markdown', {'for': 'markdown', 'do': 'yarn install'}
 
+        " markdown-preview (alternative to vim-instant-markdown) TODO
+        Plug 'iamcco/markdown-preview.nvim', { 'do': 'cd app && yarn install' }
+
+        " Better table handling (for markdown)
+        Plug 'dhruvasagar/vim-table-mode'
+
         " SageMath
         Plug 'petRUShka/vim-sage'
 
@@ -855,7 +861,7 @@ augroup END
     "Uncomment to override defaults:
     let g:instant_markdown_slow = 1
     let g:instant_markdown_autostart = 0
-    au FileType markdown nnoremap <buffer> <Leader>ll :InstantMarkdownPreview<CR>
+    " au FileType markdown nnoremap <buffer> <Leader>ll :InstantMarkdownPreview<CR>
     " stop it with :InstantMarkdownStop
     "let g:instant_markdown_open_to_the_world = 1
     let g:instant_markdown_allow_unsafe_content = 1 " Allows javascript
@@ -865,7 +871,53 @@ augroup END
     let g:instant_markdown_browser = "firefox --new-window"
     "let g:instant_markdown_port = 8888
     let g:instant_markdown_autoscroll = 1
-    "let g:instant_markdown_python = 1
+    " let g:instant_markdown_python = 1
+" }}
+
+" markdown-preview {{
+    au FileType markdown nnoremap <buffer> <Leader>ll :MarkdownPreview<CR>
+    " See https://github.com/iamcco/markdown-preview.nvim#markdownpreview-config
+    let g:mkdp_auto_start = 0 " default 0
+    let g:mkdp_auto_close = 0 " default 1
+    let g:mkdp_refresh_slow = 0 " default 0
+    let g:mkdp_command_for_global = 0 " default 0
+    let g:mkdp_open_to_the_world = 0 " default 0
+    let g:mkdp_open_ip = '' " default ''
+    let g:mkdp_browser = '' " default ''
+    let g:mkdp_echo_preview_url = 1 " default 0
+    let g:mkdp_browserfunc = '' " default ''
+    let g:mkdp_preview_options = {
+        \ 'mkit': {},
+        \ 'katex': {
+        \    'macros': {
+        \      "\\doubleR": "\\mathbb{R}",
+        \      "\\doubleN": "\\mathbb{N}",
+        \      "\\doubleZ": "\\mathbb{Z}",
+        \      "\\doubleF": "\\mathbb{F}",
+        \      "\\ds": "\\displaystyle",
+        \    },
+        \ },
+        \ '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': {},
+        \ }
+    let g:mkdp_markdown_css = '' " default ''
+    let g:mkdp_highlight_css = '' " default ''
+    let g:mkdp_port = '' " default ''
+    let g:mkdp_page_title = '「${name}」' " default '「${name}」'
+    let g:mkdp_filetypes = ['markdown'] " default ['markdown']
+    let g:mkdp_theme = 'dark' " default follows system preferences
+" }}
+
+" vim-table-mode {{
+    let g:table_mode_corner='|' " make the tables work with markdown
 " }}
 
 " Add spell checking to LaTeX documents {{
@@ -910,6 +962,9 @@ augroup END
         " Add a Markdown specific wordlist
         au FileType markdown setlocal spellfile+=~/.config/nvim/spell/Markdown.utf-8.add
         " 3zg adds a word to the dictionary
+
+        " Disable spelling in math environments
+        au FileType markdown syntax match quoteblock /\$[^$]\+\$/ contains=@NoSpell
     augroup END
 " }}
 
@@ -1075,24 +1130,24 @@ function! RemoveMarkdownHeaderAnchors()
     call winrestview(l:winview) " restore cursor position
 endfunction
 
-function! GenerateMarkdownTOC()
+" function! GenerateMarkdownTOC()
-    " We need remove the anchors before we run doctoc. Otherwise it would
+"     " We need remove the anchors before we run doctoc. Otherwise it would
-    " include the anchors in the link, and the anchors would become incorrect
+"     " include the anchors in the link, and the anchors would become incorrect
-    " Doctoc also doesn't like folds, so disable them beforehand
+"     " Doctoc also doesn't like folds, so disable them beforehand
-    set nofoldenable
+"     set nofoldenable
-    call RemoveMarkdownHeaderAnchors()
+"     call RemoveMarkdownHeaderAnchors()
-    exec ":w"
+"     exec ":w"
-    silent exec "!doctoc " . bufname()
+"     silent exec "!doctoc " . bufname()
-    exec ":e"
+"     exec ":e"
-    call GenerateMarkdownHeaderAnchors()
+"     call GenerateMarkdownHeaderAnchors()
-    set foldenable
+"     set foldenable
-    exec ":w"
+"     exec ":w"
-endfunction
+" endfunction
 
-augroup MarkdownKeyBinds
+" augroup MarkdownKeyBinds
-    autocmd!
+"     autocmd!
-    autocmd FileType markdown nmap <Leader>lt :call GenerateMarkdownTOC()<CR>
+"     autocmd FileType markdown nmap <Leader>lt :call GenerateMarkdownTOC()<CR>
-augroup END
+" augroup END
 
 " Use ripgrep for vim grepping
 if executable("rg")