Add: x12 AST

.config/nvim/after/plugin/treesitter.lua

@@ -0,0 +1,46 @@
+-- Configure nvim-treesitter with defaults
+require("nvim-treesitter").setup()
+
+-- Register the custom x12 parser for the nvim-treesitter main branch API
+vim.api.nvim_create_autocmd("User", {
+    pattern = "TSUpdate",
+    callback = function()
+        require("nvim-treesitter.parsers").x12 = {
+            install_info = {
+                url = "https://github.com/hugginsio/tree-sitter-x12",
+                files = {"src/parser.c"},
+                branch = "main",
+                generate_requires_npm = false,
+                requires_generate_from_grammar = false
+            },
+            filetype = "x12"
+        }
+    end
+})
+
+-- Explicitly trigger installation for the required parsers
+require("nvim-treesitter").install({"bash", "c", "c_sharp", "diff", "go", "html", "javascript", "jsdoc", "json", "lua",
+                                    "luadoc", "luap", "markdown", "markdown_inline", "python", "query", "regex", "toml",
+                                    "tsx", "typescript", "vim", "vimdoc", "xml", "yaml", "x12"})
+
+-- Automatically enable treesitter features for all buffers
+local ts_group = vim.api.nvim_create_augroup("TreesitterStart", {
+    clear = true
+})
+vim.api.nvim_create_autocmd("FileType", {
+    group = ts_group,
+    callback = function(args)
+        -- Bypass treesitter if the file exceeds 200 MiB
+        local max_filesize = 200 * 1024 * 1024
+        local filepath = vim.api.nvim_buf_get_name(args.buf)
+        local ok, stats = pcall(vim.uv.fs_stat, filepath)
+
+        if ok and stats and stats.size > max_filesize then
+            return
+        end
+
+        -- Start treesitter highlighting
+        -- Using pcall prevents errors if a parser is missing for the current filetype
+        pcall(vim.treesitter.start, args.buf)
+    end
+})