Redid a lot of my vim config

nvim/.config/nvim/init.vim

@@ -1,62 +1,75 @@
 call plug#begin(has('nvim') ? stdpath('data') . '/plugged' : '~/.vim/plugged')
 
-" Add all the syntax for the languages I could ever need
+" Syntax Highlighting
+
+
+" Add all the syntax highlighting for mostly everything
 Plug 'sheerun/vim-polyglot'
 
-" Java auto formatting
+" Uxntal
+Plug 'karolbelina/uxntal.vim'
 
-" Add maktaba and codefmt to the runtimepath.
+Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
-" (The latter must be installed before it can be used.)
+
+" Javascript Syntax
+"Plug 'pangloss/vim-javascript'
+"Plug 'udalov/kotlin-vim'
+
+" Additional Syntax
+"Plug 'plasticboy/vim-markdown'
+"Plug 'vim-python/python-syntax'
+
+
+" Auto Formatting
+
+
+" Google Java auto-format
 Plug 'google/vim-maktaba'
 Plug 'google/vim-codefmt'
-" Also add Glaive, which is used to configure codefmt's maktaba flags. See
-" `:help :Glaive` for usage.
 Plug 'google/vim-glaive'
 
-" Kotlin
-Plug 'udalov/kotlin-vim'
-
-" Go development
-Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
-
 " Formatter for Python
 Plug 'psf/black'
 
+
+" Development Packs
+
+
+" Go
+Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
+
+" Rust
+Plug 'rust-lang/rust.vim'
+
 " Colorscheme
 Plug 'morhetz/gruvbox'
 
-" Live preview for markdown
+" For previewing markdown in a web browser
 Plug 'iamcco/markdown-preview.nvim', { 'do': 'cd app && yarn install'  }
 
-" Snippets
-Plug 'SirVer/ultisnips'
-
-" Latex
-Plug 'lervag/vimtex'
-Plug 'xuhdev/vim-latex-live-preview', { 'for': 'tex' }
-
-" LSP Config
-Plug 'neovim/nvim-lspconfig'
-Plug 'nvim-lua/lsp_extensions.nvim'
-Plug 'hrsh7th/cmp-nvim-lsp', {'branch': 'main'}
-Plug 'hrsh7th/cmp-buffer', {'branch': 'main'}
-Plug 'hrsh7th/cmp-path', {'branch': 'main'}
-Plug 'hrsh7th/nvim-cmp', {'branch': 'main'}
-Plug 'ray-x/lsp_signature.nvim'
 
 " Autocompletion snippets
 Plug 'hrsh7th/cmp-vsnip', {'branch': 'main'}
 Plug 'hrsh7th/vim-vsnip'
 
-" More syntax
+" Latex
-Plug 'rust-lang/rust.vim'
+Plug 'lervag/vimtex'
-Plug 'plasticboy/vim-markdown'
+Plug 'KeitaNakamura/tex-conceal.vim'
-Plug 'vim-python/python-syntax'
-Plug 'karolbelina/uxntal.vim'
 
-" Javascript Syntax
+" LSP Config
-Plug 'pangloss/vim-javascript'
+Plug 'neovim/nvim-lspconfig'
-Plug 'mxw/vim-jsx'
+Plug 'hrsh7th/cmp-nvim-lsp'
+Plug 'hrsh7th/cmp-buffer'
+Plug 'hrsh7th/cmp-path'
+Plug 'hrsh7th/cmp-cmdline'
+Plug 'hrsh7th/nvim-cmp'
+
+" Snippets
+Plug 'SirVer/ultisnips'
+Plug 'quangnguyen30192/cmp-nvim-ultisnips'
+
+"Plug 'nvim-lua/lsp_extensions.nvim'
+"Plug 'ray-x/lsp_signature.nvim'
 
 " Javascript LSPs
 Plug 'denoland/deno'
@@ -73,143 +86,52 @@ Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
 
 call plug#end()
 
-set autowrite
+" Better auto-completions
+set completeopt=menuone,noinsert,noselect
 
-" Go configuration
+" Use tree-sitter for Lua parsing to get around a bug with Vim's formatter
-let g:go_highlight_fields = 1
+" https://github.com/neovim/neovim/issues/20456
-let g:go_highlight_functions = 1
+lua <<EOF
-let g:go_highlight_function_calls = 1
+require('nvim-treesitter.configs').setup({
-let g:go_highlight_extra_types = 1
+    ensure_installed = {"lua"},
-let g:go_highlight_operators = 1
+    auto_install = true,
-
+    highlight = {
-let g:go_auto_type_info = 1
+        enable = true,
-
+    },
-" UltiSnips keybindings
+})
-let g:UltiSnipsExpandTrigger="<tab>"
+EOF
-let g:UltiSnipsJumpForwardTrigger="<c-b>"
-let g:UltiSnipsJumpBackwardTrigger="<c-z>"
-
-" Disable the scroll sync in the markdown preview
-let g:mkdp_preview_options = {
-    \ 'disable_sync_scroll': 1,
-    \ }
-
-" LaTeX shell escape
-let g:vimtex_compiler_latexmk = {
-    \ 'options' : [
-    \   '-shell-escape',
-    \   '-verbose',
-    \   '-file-line-error',
-    \   '-synctex=1',
-    \   '-interaction=nonstopmode',
-    \ ],
-    \ }
-
-" Run the Java formatter on save
-augroup autoformat_settings
-  autocmd FileType java AutoFormatBuffer google-java-format
-augroup END
-
-" Run black formatter on save
-autocmd BufWritePre *.py execute ':Black'
-
-" Add custom syntax for files
-au BufRead,BufNewFile *.asm set filetype=mips
-
-autocmd FileType tex set spell
-
-" Python syntax config
-let g:python_highlight_all = 1
-
-" Settings for markdown
-let g:vim_markdown_new_list_item_indent = 0
-let g:vim_markdown_auto_insert_bullets = 0
-let g:vim_markdown_frontmatter = 1
-
-" Vimtex configuration
-let g:vimtex_view_method = 'zathura'
-let g:vimtex_quickfix_mode=0
-
-" Javascript Flow syntax support
-let g:javascript_plugin_flow=1
 
 " LSP configuration
-lua << END
+lua << EOF
-local cmp = require'cmp'
 
+	local cmp = require'cmp'
 	local lspconfig = require'lspconfig'
+
   cmp.setup({
     snippet = {
-    -- REQUIRED by nvim-cmp. get rid of it once we can
+      -- REQUIRED - you must specify a snippet engine
       expand = function(args)
-      vim.fn["vsnip#anonymous"](args.body)
+        vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
       end,
     },
 		mapping = {
-    -- Tab immediately completes. C-n/C-p to select.
+			['<C-b>'] = cmp.mapping.scroll_docs(-4),
-    ['<Tab>'] = cmp.mapping.confirm({ select = true })
+			['<C-f>'] = cmp.mapping.scroll_docs(4),
+			['<C-Space>'] = cmp.mapping.complete(),
+			['<C-e>'] = cmp.mapping.abort(),
+			['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
 		},
-  sources = cmp.config.sources(
+		sources = cmp.config.sources({
-		{
-    -- TODO: currently snippets from lsp end up getting prioritized -- stop that!
       { name = 'nvim_lsp' },
-  	}
+      { name = 'ultisnips' }, -- For ultisnips users.
-		-- Disable 'path' auto-completion
+    }, {
-		--[[
+      { name = 'buffer' },
-		{
-    	{ name = 'path' },
-  	}
-		--]]
-	),
-  experimental = {
-    ghost_text = true,
-  },
     })
-
--- Enable completing paths in :
---cmp.setup.cmdline(':', {
---  sources = cmp.config.sources({
---    { name = 'path' }
---  })
---})
-
--- Setup lspconfig.
-local on_attach = function(client, bufnr)
-  local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
-  local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end
-
-  --Enable completion triggered by <c-x><c-o>
-  buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
-
-  -- Mappings.
-  local opts = { noremap=true, silent=true }
-
-  -- See `:help vim.lsp.*` for documentation on any of the below functions
-  buf_set_keymap('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
-  buf_set_keymap('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
-  buf_set_keymap('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
-  buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
-  buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
-  buf_set_keymap('n', '<space>D', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
-  buf_set_keymap('n', '<space>r', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
-  buf_set_keymap('n', '<space>a', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
-  buf_set_keymap('n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
-  buf_set_keymap('n', '<space>e', '<cmd>lua vim.diagnostic.open_float()<CR>', opts)
-  buf_set_keymap('n', '[d', '<cmd>lua vim.diagnostic.goto_prev()<CR>', opts)
-  buf_set_keymap('n', ']d', '<cmd>lua vim.diagnostic.goto_next()<CR>', opts)
-  buf_set_keymap('n', '<space>q', '<cmd>lua vim.diagnostic.set_loclist()<CR>', opts)
-  buf_set_keymap("n", "<space>f", "<cmd>lua vim.lsp.buf.formatting()<CR>", opts)
-
-  -- Get signatures (and _only_ signatures) when in argument lists.
-  require "lsp_signature".on_attach({
-    doc_lines = 0,
-    handler_opts = {
-      border = "none"
-    },
 	})
-end
 
 	local capabilities = require('cmp_nvim_lsp').default_capabilities()
+
+  -- Rust language server
 	lspconfig.rust_analyzer.setup {
 		on_attach = on_attach,
 		flags = {
@@ -230,6 +152,7 @@ lspconfig.rust_analyzer.setup {
 		capabilities = capabilities,
 	}
 
+  -- Java language server
 	lspconfig.java_language_server.setup{
 		on_attach = on_attach,
 		cmd = {"/usr/share/java/java-language-server/lang_server_linux.sh"},
@@ -241,19 +164,19 @@ vim.g.markdown_fenced_languages = {
 	}
 
 	-- Deno Javascript Language Server
---[[
 	lspconfig.denols.setup{
 		on_attach = on_attach,
 		flags = lsp_flags,
 	}
---]]
 
+	--[[
 	-- Flow Javascript Language Server
 	lspconfig.flow.setup{
 		on_attach = on_attach,
 		flags = lsp_flags,
 		cmd = {"flow", "lsp"}
 	}
+	--]]
 
 	vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
 		vim.lsp.diagnostic.on_publish_diagnostics, {
@@ -262,7 +185,70 @@ vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
 			update_in_insert = true,
 		}
 	)
-END
+EOF
+
+" Auto-save buffers when they switch
+" Probably not necessary, but helps if I forget to save
+set autowrite
+
+" Go development options
+let g:go_highlight_fields = 1
+let g:go_highlight_functions = 1
+let g:go_highlight_function_calls = 1
+let g:go_highlight_extra_types = 1
+let g:go_highlight_operators = 1
+let g:go_auto_type_info = 1
+
+" UltiSnips keybindings
+let g:UltiSnipsExpandTrigger="<tab>"
+let g:UltiSnipsJumpForwardTrigger="<c-b>"
+let g:UltiSnipsJumpBackwardTrigger="<c-z>"
+
+" Disable the scroll sync in the markdown preview
+let g:mkdp_preview_options = {
+    \ 'disable_sync_scroll': 1,
+    \ }
+
+
+" Vimtex configuration
+let g:vimtex_view_method = 'zathura'
+let g:vimtex_quickfix_mode=0
+let g:vimtex_compiler_latexmk = {
+    \ 'options' : [
+    \   '-shell-escape',
+    \   '-verbose',
+    \   '-file-line-error',
+    \   '-synctex=1',
+    \   '-interaction=nonstopmode',
+    \ ],
+    \ }
+
+" Turn on spell checking and concealing for Tex files automatically
+autocmd FileType tex setlocal spell tw=80 colorcolumn=81 conceallevel=1
+
+" Turn on text concealing in Tex files
+let g:tex_conceal='abdmg'
+hi Conceal ctermbg=none
+
+" Auto-formatting
+augroup autoformat_settings
+  autocmd FileType java AutoFormatBuffer google-java-format
+  autocmd BufWritePre *.py Black
+augroup END
+
+" Assume that all asm files are MIPS assembly syntax
+au BufRead,BufNewFile *.asm set filetype=mips
+
+" Python syntax config
+let g:python_highlight_all = 1
+
+" Settings for markdown
+let g:vim_markdown_new_list_item_indent = 0
+let g:vim_markdown_auto_insert_bullets = 0
+let g:vim_markdown_frontmatter = 1
+
+" Javascript Flow syntax support
+let g:javascript_plugin_flow=1
 
 " Enable type inlay hints
 autocmd CursorHold,CursorHoldI *.rs :lua require'lsp_extensions'.inlay_hints{ only_current_line = true }
@@ -276,10 +262,8 @@ let g:rustfmt_autosave = 1
 let g:rustfmt_emit_files = 1
 let g:rustfmt_fail_silently = 0
 
-" Better auto-completions
-set completeopt=menuone,noinsert,noselect
 
-" Prevent rust-analyzer from jumping the code around
+" Prevent the text from jumping around
 set signcolumn=yes
 
 " Proper search
@@ -292,8 +276,7 @@ set gdefault
 set nofoldenable
 
 " Vertical bar at 80 characters
-set cc=80
+set colorcolumn=80
-set tw=792034
 set background=dark
 set clipboard=unnamedplus