Misc: rust, shortcuts, show indent, org-mode to HTML improvement

Keybindings:

- Rust F5 - show run targets
- Rust Shift-F5 - run last target
- Normal: Space-o - open current file in chromium
- Visual: Space-f - LSP format current region

Configuration:

- org-mode: use pandoc to generate a standalone HTML, support plantuml
  blocks
- no winbar for neo tree
- disabled treesitter asciidoc, seems to be broken
- splash screen: added browse, reordered entries

Plugins:

- use indent-blankline to visualize indents

after/ftplugin/asciidoc.lua

@@ -0,0 +1,2 @@
+-- Options for AsciiDoc files, mainly used in diary situations
+vim.opt.textwidth = 80

after/ftplugin/rust.lua

@@ -6,5 +6,26 @@ vim.keymap.set(
   function()
     vim.cmd.RustLsp({ 'explainError', 'current' })
   end,
-  { silent = true, buffer = bufnr, desc = 'Rust: explain error at cursor' }
+  { silent = true, buffer = bufnr, desc = 'RustLSP: explain error at cursor' }
+)
+
+
+-- show run targets
+vim.keymap.set(
+  "n",
+  "<f5>",
+  function()
+    vim.cmd.RustLsp({ 'runnables' })
+  end,
+  { silent = true, buffer = bufnr, desc = 'RustLSP: show runnables' }
+)
+
+-- run last target
+vim.keymap.set(
+  "n",
+  "<S-f5>",
+  function()
+    vim.cmd.RustLsp({ 'runnables', bang = true })
+  end,
+  { silent = true, buffer = bufnr, desc = 'RustLSP: show runnables' }
 )

lua/keybindings.lua

@@ -23,6 +23,9 @@ vim.keymap.set('n', '<leader>T', ":Neotree reveal<CR>", { desc = "File Manager"
 -- calendar
 vim.keymap.set('n', '<leader>c', ":Calendar -split=horizontal -position=below -height=12<CR>", { desc = "Show calendar" })
 
+-- Open current file in browser (chromium)
+vim.keymap.set('n', '<space>o', ":silent !chromium '%'<cr>", { desc = "Open in browser" })
+
 --
 -- configure workspaces
 -- also add a custom picker to fzf

lua/lsp.lua

@@ -11,17 +11,25 @@ require('mason').setup({
 require('mason-lspconfig').setup({
   -- A list of servers to automatically install if they're not already installed
   ensure_installed = {
-    'pylsp',
     'lua_ls',
     -- 'rust_analyzer', -- handled by rust mrcjkb/rustaceanvim
     'yamlls',
     'ts_ls',
     'gopls',
-    'pylsp',
     'clangd',
   },
 })
 
+-- lsp format selected range
+function LSPRangeFormatFunction()
+  vim.lsp.buf.format({
+    async = true,
+    range = {
+      ["start"] = vim.api.nvim_buf_get_mark(0, "<"),
+      ["end"] = vim.api.nvim_buf_get_mark(0, ">"),
+    }
+  })
+end
 
 -- Use an on_attach function to only map the following keys
 -- after the language server attaches to the current buffer
@@ -43,6 +51,7 @@ local on_attach = function(client, bufnr)
   vim.keymap.set("n", "<space>f", function()
     vim.lsp.buf.format({ async = true })
   end, { desc = "LSP Format buffer", unpack(bufopts) })
+  vim.keymap.set("v", "<space>f", LSPRangeFormatFunction, { desc = "LSP Format region" })
 
   -- 2024-09-09 - some ccflow commands for diagnostics, symbols and code actions
   local fzf = require('fzf-lua')

lua/plugins.lua

@@ -94,7 +94,7 @@ require("lazy").setup({
             action = function(exporter)
               local current_file = vim.api.nvim_buf_get_name(0)
               local target = vim.fn.fnamemodify(current_file, ':p:r') .. '.html'
-              local command = { 'pandoc', current_file, '-o', target }
+              local command = { 'pandoc', '--filter', 'pandoc-plot', current_file, '--standalone', '--output', target }
               local on_success = function(output)
                 print('Success!')
                 vim.api.nvim_echo({ { table.concat(output, '\n') } }, true, {})
@@ -224,7 +224,7 @@ require("lazy").setup({
           section_separators = {},
           disabled_filetypes = {
             statusline = {},
-            winbar = {},
+            winbar = { "neo-tree" },
           },
           ignore_focus = {},
           always_divide_middle = true,
@@ -263,7 +263,8 @@ require("lazy").setup({
         },
         inactive_winbar = {
           lualine_a = {
-            { breadcrumb,
+            {
+              breadcrumb,
               color = { bg = '#101010', fg = '#999999' },
               draw_empty = true
             }
@@ -339,7 +340,8 @@ require("lazy").setup({
   },
 
   -- treesitter asciidoc support
-  { "cpkio/nvim-treesitter-asciidoc" },
+  -- // NOTE.2025-01-17 seems to be broken
+  -- { "cpkio/nvim-treesitter-asciidoc" },
 
 
   -- Greeter to run on NeoVim startup
@@ -424,9 +426,10 @@ require("lazy").setup({
       dashboard.section.header.val = vim.split(adjustedLogo, '\n')
 
       dashboard.section.buttons.val = {
+        dashboard.button('h', '  Browse ~', '<cmd>Neotree<CR>'),
         dashboard.button('n', '  New file', ':ene <BAR> startinsert <CR>'),
-        dashboard.button('u', '󱐥  Update plugins', '<cmd>Lazy update<CR>'),
         dashboard.button('s', '  Settings', '<cmd>WorkspacesOpen config-nvim<CR>'),
+        dashboard.button('u', '󱐥  Update plugins', '<cmd>Lazy update<CR>'),
         dashboard.button('w', '  Workspaces', '<cmd>WorkspacesOpen<CR>'),
         dashboard.button('q', '󰤆  Quit', '<cmd>qa<CR>'),
       }
@@ -527,4 +530,13 @@ require("lazy").setup({
   {
     'mfussenegger/nvim-dap'
   },
+
+  -- show indent markers
+  {
+    "lukas-reineke/indent-blankline.nvim",
+    main = "ibl",
+    ---@module "ibl"
+    ---@type ibl.config
+    opts = {},
+  },
 })