snippets: load my own, add markdown snippets

- Renames the snippets folder to my_snippets.
- Lazy loads my snippets.
- Creates two snippet example available for all filetypes.
- Creates three snippets for markdown filetype.
- Creates a markdown snippet to get the number of the curret day.
- Creates a markdown snippet to get the current date.
- Creates a snippet to create a link in markdown reference syntax.
- Creates a generic frontmatter snippet.
- Creates a frontmatter snippet for my incremental notes (journal).
- Improves the description and description syntax of my markdown
  snippets.
- Adds the telescope luasnip plugin.
- Sets a keymaping to fuzzy search all available snippets (<leader>ss).
- Documents the feature of the plugin that provides the snippets search
  through telescope.
- Enables the search highlighting.
- Removes unnecessary lualine separator.
- Renames the neo-tree plugin file.
- Lazy loads the zen-mode for markdown files.
- Installs and configure texlab which provides LSP and linter for LaTeX.
  Should also allow to build a project, but It is failling right now, I
  don't get why.

Co-Authored-by: iGor milhit <igor@milhit.ch>

init.lua

@@ -160,7 +160,7 @@ require('lazy').setup({
         icons_enabled = true,
         theme = 'nord',
         component_separators = '|',
-        section_separators = '/',
+        section_separators = '',
       },
     },
   },
@@ -195,6 +195,11 @@ require('lazy').setup({
     end,
   },
 
+  {
+    -- Allow to search for snippets
+    'benfowler/telescope-luasnip.nvim'
+  },
+
   {
     -- Highlight, edit, and navigate code
     'nvim-treesitter/nvim-treesitter',
@@ -227,7 +232,7 @@ vim.opt.rtp:append (vim.fn.stdpath ('data') .. '/site')
 -- NOTE: You can change these options as you wish!
 
 -- Set highlight on search
-vim.o.hlsearch = false
+vim.o.hlsearch = true
 
 -- Make line numbers default
 vim.wo.number = true
@@ -320,6 +325,7 @@ require('telescope').setup {
 
 -- Enable telescope fzf native, if installed
 pcall(require('telescope').load_extension, 'fzf')
+pcall(require('telescope').load_extension, 'luasnip')
 
 -- See `:help telescope.builtin`
 vim.keymap.set('n', '<leader>?', require('telescope.builtin').oldfiles, { desc = '[?] Find recently opened files' })
@@ -339,6 +345,7 @@ vim.keymap.set('n', '<leader>sw', require('telescope.builtin').grep_string, { de
 vim.keymap.set('n', '<leader>sg', require('telescope.builtin').live_grep, { desc = '[S]earch by [G]rep' })
 vim.keymap.set('n', '<leader>sd', require('telescope.builtin').diagnostics, { desc = '[S]earch [D]iagnostics' })
 vim.keymap.set('n', '<leader>sb', require('telescope.builtin').buffers, { desc = '[S]earch [B]uffers' })
+vim.keymap.set('n', '<leader>ss', require'telescope'.extensions.luasnip.luasnip , { desc = '[S]earch [S]nippets' })
 
 -- [[ Configure Treesitter ]]
 -- See `:help nvim-treesitter`
@@ -482,6 +489,22 @@ local servers = {
       telemetry = { enable = false },
     },
   },
+
+  texlab = {
+    settings = {
+      build = {
+        executable = "tectonic",
+        args = {
+          "-X",
+          "compile",
+          "%f",
+          "--syntex",
+          "--keep-logs",
+          "--keep-intermediates"
+        }
+      }
+    }
+  },
 }
 
 -- Setup neovim lua configuration
@@ -519,9 +542,12 @@ luasnip.config.setup {
   snippets = {
     markdown = {},
   },
-  luasnip.filetype_extend("pandoc", {"markdown"})
+  luasnip.filetype_extend("pandoc", {"markdown"}),
 }
 
+-- Load snippets from ~/.config/nvim/LuaSnip/
+require("luasnip.loaders.from_lua").load({paths = "~/.config/nvim/my_snippets/"})
+
 cmp.setup {
   snippet = {
     expand = function(args)

lua/custom/plugins/neo-tree.lua

@@ -1,4 +1,5 @@
--- Trying to add a custom plugin for file tree
+-- Plugin for file tree: neo-tree
+--   Using the kickstart and the neo-tree documentations
 
 -- Unless you are still migrating, remove the deprecated commands from v1.x
 vim.cmd([[ let g:neo_tree_remove_legacy_commands = 1 ]])

lua/custom/plugins/zen-mode.lua

@@ -3,6 +3,10 @@
 
 return {
   "folke/zen-mode.nvim",
+  ft = {
+    "markdown",
+    "pandoc"
+  },
   -- Twilight allows to dim text outside of the cursor line.
   dependencies = {
     "folke/twilight.nvim",

my_snippets/markdown.lua

@@ -0,0 +1,151 @@
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local fmt = require("luasnip.extras.fmt").fmt
+
+-- Function to get the datetime
+--   with daylight saving time
+--   according to the locale
+local get_datetime = function()
+  return os.date("%Y-%m-%dT%H:%M:%S%z")
+end
+
+-- Function to get the current date
+local get_date = function()
+  return os.date("%Y-%m-%d")
+end
+
+-- Function to get the current month 
+local get_month = function()
+  return os.date("%B")
+end
+
+-- Function to get the current year
+local get_month_year = function()
+  return os.date("%B-%Y")
+end
+
+-- Function to get an id based on the datetime 
+local get_id = function()
+  return os.date("%Y%m%d%H%M%S")
+end
+
+-- Function to get the number of the current day 
+local get_day = function()
+  return os.date("%d")
+end
+
+return {
+  s(
+    {
+      trig = "datetime",
+      name = "Datetime",
+      dscr = "Insert the current datetime with locale daylight saving."
+    },
+    {
+      f(get_datetime, {})
+    }
+  ),
+  s(
+    {
+      trig = "date",
+      name = "Date",
+      dscr = "Insert the current date."
+    },
+    {
+      f(get_date, {})
+    }
+  ),
+  s(
+    {
+      trig = "id",
+      Name = "ID",
+      dscr = "Insert an id based on the current datetime."
+    },
+    {
+      f(get_id, {})
+    }
+  ),
+  s(
+    {
+      trig = "today",
+      Name = "Today",
+      dscr = "Insert the number of the current day."
+    },
+    {
+      f(get_day, {})
+    }
+  ),
+  s(
+    {
+      trig = "fm",
+      name = "YAML frontmatter",
+      dscr = "Insert a YAML frontmatter for markdown files.\n\nIt has a datetime with the locale daylight saving time, and an ID based on the datetime.\nTab to jump to next text input."
+    },
+    fmt(
+      [[
+        ---
+        title: {1}
+        date: {3}
+        id: {4}
+        tags: [{2}]
+        ---
+
+      ]],
+      {
+        i(1, "title"),
+        i(2, "tags"),
+        f(get_datetime, {}),
+        f(get_id, {})
+      }
+    )
+  ),
+  s(
+    {
+      trig = "inc",
+      name = "INC YAML frontmatter",
+      dscr = "Insert a YAML frontmatter for INC notes.\n\nIt has a datetime with the locale daylight saving time, prefilled title, author, categories and tags.\nAdjust the title manually."
+    },
+    fmt(
+      [[
+        ---
+        title: {1}
+        creation_date: {2}
+        author: iGor milhit
+        categories: [inc]
+        tags: [notes, quotidien, {3}]
+        ---
+
+      ]],
+      {
+        f(get_month_year, {}),
+        f(get_datetime, {}),
+        f(get_month, {})
+      }
+    )
+  ),
+  s(
+    {
+      trig="reflink",
+      name = "Reference link",
+      dscr="Insert a link with reference syntax",
+      docstring = "[Link text][Reference]\n\n[Reference]: Link Target \"Title\"\n\nTab to jump to next text input. \"Reference\" is automatically repeated."
+    },
+    fmt(
+      [[
+        [{1}][{2}]
+
+        [{2}]: {3} "{4}"
+      ]],
+      {
+        i(1, "Link text"),
+        i(2, "Reference"),
+        i(3, "Link target"),
+        i(4, "Title")
+      },
+      { repeat_duplicates = true }
+    )
+  )
+}

spell/en.utf-8.add

@@ -1,2 +1,6 @@
 AoU
 Floriane
+Séverine
+HEG
+neovim
+lua