feat: highlight quarto code chunks without plugin (#103)

feat: make animals more visible

feat: exclude quarto docs output dir from telescope grep

fix: don't show mode in cmd line, already in statusline

fix: colorizer config

fix: lsp examples

fix: hide more quarto output dirs from search

ftplugin/quarto.lua

@@ -1,3 +1,6 @@
+local api = vim.api
+local ts = vim.treesitter
+
 vim.b.slime_cell_delimiter = '```'
 vim.b['quarto_is_r_mode'] = nil
 vim.b['reticulate_running'] = false
@@ -13,7 +16,61 @@ vim.wo.showbreak = '|'
 vim.api.nvim_buf_set_var(0, 'did_ftplugin', true)
 
 -- markdown vs. quarto hacks
-local ns = vim.api.nvim_create_namespace 'quartoHighlight'
+local ns = vim.api.nvim_create_namespace 'QuartoHighlight'
 vim.api.nvim_set_hl(ns, '@markup.strikethrough', { strikethrough = false })
 vim.api.nvim_set_hl(ns, '@markup.doublestrikethrough', { strikethrough = true })
 vim.api.nvim_win_set_hl_ns(0, ns)
+
+-- highlight code cells similar to
+-- 'lukas-reineke/headlines.nvim'
+-- (disabled in lua/plugins/ui.lua)
+local buf = api.nvim_get_current_buf()
+
+local parsername = 'markdown'
+local parser = ts.get_parser(buf, parsername)
+local tsquery = '(fenced_code_block)@codecell'
+
+-- vim.api.nvim_set_hl(0, '@markup.codecell', { bg = '#000055' })
+vim.api.nvim_set_hl(0, '@markup.codecell', {
+  link = 'CursorLine',
+})
+
+local function clear_all()
+  local all = api.nvim_buf_get_extmarks(buf, ns, 0, -1, {})
+  for _, mark in ipairs(all) do
+    vim.api.nvim_buf_del_extmark(buf, ns, mark[1])
+  end
+end
+
+local function highlight_range(from, to)
+  for i = from, to do
+    vim.api.nvim_buf_set_extmark(buf, ns, i, 0, {
+      hl_eol = true,
+      line_hl_group = '@markup.codecell',
+    })
+  end
+end
+
+local function highlight_cells()
+  clear_all()
+
+  local query = ts.query.parse(parsername, tsquery)
+  local tree = parser:parse()
+  local root = tree[1]:root()
+  for _, match, _ in query:iter_matches(root, buf, 0, -1, { all = true }) do
+    for _, nodes in pairs(match) do
+      for _, node in ipairs(nodes) do
+        local start_line, _, end_line, _ = node:range()
+        pcall(highlight_range, start_line, end_line - 1)
+      end
+    end
+  end
+end
+
+highlight_cells()
+
+vim.api.nvim_create_autocmd({ 'ModeChanged', 'BufWrite' }, {
+  group = vim.api.nvim_create_augroup('QuartoCellHighlight', { clear = true }),
+  buffer = buf,
+  callback = highlight_cells,
+})

lua/config/global.lua

@@ -17,6 +17,9 @@ vim.opt.updatetime = 250 -- for autocommands and hovers
 -- don't ask about existing swap files
 vim.opt.shortmess:append 'A'
 
+-- mode is already in statusline
+vim.opt.showmode = false
+
 -- use less indentation
 local tabsize = 2
 vim.opt.expandtab = true
@@ -67,7 +70,7 @@ let g:currentmode={
 
 math.randomseed(os.time())
 local i = math.random(#animals)
-vim.opt.statusline = '%{%g:currentmode[mode()]%} %{%reg_recording()%} %* %t | %y | %* %= c:%c l:%l/%L %p%% ' .. animals[i] .. ' %*'
+vim.opt.statusline = '%{%g:currentmode[mode()]%} %{%reg_recording()%} %* %t | %y | %* %= c:%c l:%l/%L %p%% %#NonText# ' .. animals[i] .. ' %*'
 
 -- hide cmdline when not used
 vim.opt.cmdheight = 1

lua/config/wip/focus-image.lua

@@ -0,0 +1,68 @@
+local api = require 'image'
+
+M = {}
+
+local function get_image_at_cursor(buf)
+  local images = api.get_images { buffer = buf }
+  local row = vim.api.nvim_win_get_cursor(0)[1]
+  for _, img in ipairs(images) do
+    if img.geometry ~= nil and img.geometry.y == row then
+      return img
+    end
+  end
+  return nil
+end
+
+M.main = function()
+  local cur_buf = vim.api.nvim_get_current_buf()
+  local image = get_image_at_cursor(cur_buf)
+  if image == nil then
+    return
+  end
+
+  local width = vim.api.nvim_get_option_value('columns', {})
+  local height = vim.api.nvim_get_option_value('lines', {})
+
+  local preview_buf = vim.api.nvim_create_buf(false, true)
+  local win = vim.api.nvim_open_win(preview_buf, true, {
+    relative = 'editor',
+    anchor = 'NW',
+    width = width,
+    height = height,
+    row = 0,
+    col = 0,
+    zindex = 300,
+    style = 'minimal',
+  })
+
+  -- copy original options to reset afterwards
+  local og_options = {}
+  for k, v in pairs(image.global_state.options) do
+    og_options[k] = v
+  end
+
+  local og_extmark = image.extmark
+
+  image.global_state.options.max_height = nil
+  image.global_state.options.max_width = nil
+  image.global_state.options.max_width_window_percentage = nil
+  image.global_state.options.max_height_window_percentage = nil
+
+  for _, img in ipairs(api.get_images()) do
+    img:clear()
+  end
+
+  vim.print(image.global_state)
+
+  api.hijack_buffer(image.path, win, preview_buf)
+
+  vim.keymap.set('n', 'q', function()
+    api.clear()
+    image.global_state.options = og_options
+    image.extmark = og_extmark
+    image:render()
+    vim.api.nvim_win_close(win, true)
+  end, { buffer = preview_buf })
+end
+
+vim.keymap.set('n', '<leader>io', M.main, { desc = '[i]mage [o]pen' })

lua/plugins/colorthemes.lua

@@ -46,27 +46,29 @@ return {
     enabled = true,
     opts = {
       filetypes = { '*' },
-      RGB = true, -- #RGB hex codes
-      RRGGBB = true, -- #RRGGBB hex codes
-      names = true, -- "Name" codes like Blue or blue
-      RRGGBBAA = true, -- #RRGGBBAA hex codes
-      AARRGGBB = false, -- 0xAARRGGBB hex codes
-      rgb_fn = false, -- CSS rgb() and rgba() functions
-      hsl_fn = false, -- CSS hsl() and hsla() functions
-      css = false, -- Enable all CSS features: rgb_fn, hsl_fn, names, RGB, RRGGBB
-      css_fn = false, -- Enable all CSS *functions*: rgb_fn, hsl_fn
-      -- Available modes for `mode`: foreground, background,  virtualtext
-      mode = 'background', -- Set the display mode.
-      -- Available methods are false / true / "normal" / "lsp" / "both"
-      -- True is same as normal
-      tailwind = false, -- Enable tailwind colors
-      -- parsers can contain values used in |user_default_options|
-      sass = { enable = false, parsers = { 'css' } }, -- Enable sass colors
-      virtualtext = '■',
-      -- update color values even if buffer is not focused
-      -- example use: cmp_menu, cmp_docs
-      always_update = false,
-      -- all the sub-options of filetypes apply to buftypes
+      user_default_options = {
+        RGB = true, -- #RGB hex codes
+        RRGGBB = true, -- #RRGGBB hex codes
+        names = true, -- "Name" codes like Blue or blue
+        RRGGBBAA = true, -- #RRGGBBAA hex codes
+        AARRGGBB = false, -- 0xAARRGGBB hex codes
+        rgb_fn = false, -- CSS rgb() and rgba() functions
+        hsl_fn = false, -- CSS hsl() and hsla() functions
+        css = false, -- Enable all CSS features: rgb_fn, hsl_fn, names, RGB, RRGGBB
+        css_fn = false, -- Enable all CSS *functions*: rgb_fn, hsl_fn
+        -- Available modes for `mode`: foreground, background,  virtualtext
+        mode = 'background', -- Set the display mode.
+        -- Available methods are false / true / "normal" / "lsp" / "both"
+        -- True is same as normal
+        tailwind = false, -- Enable tailwind colors
+        -- parsers can contain values used in |user_default_options|
+        sass = { enable = false, parsers = { 'css' } }, -- Enable sass colors
+        virtualtext = '■',
+        -- update color values even if buffer is not focused
+        -- example use: cmp_menu, cmp_docs
+        always_update = false,
+        -- all the sub-options of filetypes apply to buftypes
+      },
       buftypes = {},
     },
   },

lua/plugins/lsp.lua

@@ -1,8 +1,9 @@
 return {
   {
+
     -- for lsp features in code cells / embedded code
     'jmbuhr/otter.nvim',
-    dev = true,
+    dev = false,
     dependencies = {
       {
         'neovim/nvim-lspconfig',
@@ -18,6 +19,7 @@ return {
       },
       buffers = {
         set_filetype = true,
+        write_to_disk = false,
       },
       handle_leading_whitespace = true,
     },
@@ -225,13 +227,16 @@ return {
       -- See `:h lspconfig-all` for the configuration.
       -- Like e.g. Haskell:
       -- lspconfig.hls.setup {
-      --   on_attach = on_attach,
       --   capabilities = capabilities,
       --   flags = lsp_flags
       -- }
 
+      -- lspconfig.clangd.setup {
+      --   capabilities = capabilities,
+      --   flags = lsp_flags,
+      -- }
+
       -- lspconfig.rust_analyzer.setup{
-      --   on_attach = on_attach,
       --   capabilities = capabilities,
       --   settings = {
       --     ['rust-analyzer'] = {

lua/plugins/ui.lua

@@ -37,12 +37,21 @@ return {
           end
         end)
       end
+
+      local telescope_config = require 'telescope.config'
+      -- Clone the default Telescope configuration
+      local vimgrep_arguments = { unpack(telescope_config.values.vimgrep_arguments) }
+      -- I don't want to search in the `docs` directory (rendered quarto output).
+      table.insert(vimgrep_arguments, '--glob')
+      table.insert(vimgrep_arguments, '!docs/*')
+
       telescope.setup {
         defaults = {
           buffer_previewer_maker = new_maker,
+          vimgrep_arguments = vimgrep_arguments,
           file_ignore_patterns = {
             'node_modules',
-            '%_files/*.html',
+            '%_files/',
             '%_cache',
             '.git/',
             'site_libs',