feat: support org sections

.clang-format

@@ -0,0 +1,20 @@
+---
+BasedOnStyle: LLVM
+IndentWidth: 4
+---
+Language: Cpp
+# Force pointers to the type for C.
+DerivePointerAlignment: false
+PointerAlignment: Right
+
+# Short functions should not be on a single line, unless empty
+AllowShortFunctionsOnASingleLine: Empty
+
+# It makes more sense this way
+BreakBeforeBinaryOperators: All
+BreakBeforeTernaryOperators: true
+
+# Aesthetic
+AlignOperands: AlignAfterOperator
+BinPackParameters: false
+---

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -1,2 +1,4 @@
 node_modules
 build
+
+.direnv

.pre-commit-config.yaml

@@ -0,0 +1 @@
+/nix/store/ik0xp2lddma9sx1gpvrzzrfccx7pzika-pre-commit-config.json

flake.nix

@@ -0,0 +1,122 @@
+{
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs = {
+      url = "github:NixOS/nixpkgs/nixos-unstable";
+    };
+    pre-commit-hooks = {
+      url = "github:cachix/pre-commit-hooks.nix";
+      inputs = {
+        flake-utils.follows = "flake-utils";
+        nixpkgs.follows = "nixpkgs";
+      };
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, pre-commit-hooks }:
+    { } //
+    flake-utils.lib.eachDefaultSystem
+      (
+        system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [ self.overlays.default ];
+          };
+
+          tree-sitter-env = pkgs.stdenv.mkDerivation {
+            name = "tree-sitter-env";
+
+            nativeBuildInputs = with pkgs; [
+              makeWrapper
+            ];
+
+            dontUnpack = true;
+
+            dontBuild = true;
+
+            installPhase = ''
+              mkdir -p $out/bin
+              makeWrapper \
+                ${pkgs.tree-sitter}/bin/tree-sitter \
+                $out/bin/tree-sitter \
+                --prefix PATH : "${with pkgs; lib.makeBinPath [stdenv.cc nodejs]}"
+            '';
+          };
+
+        in
+        rec {
+          checks = {
+            pre-commit = pre-commit-hooks.lib.${system}.run {
+              src = ./.;
+
+              hooks = {
+                clang-format = {
+                  enable = true;
+                  name = "clang-format";
+                  entry = "${pkgs.clang-tools}/bin/clang-format -style=file -i";
+                  types = [ "text" "c" ];
+                  # I don't care for generated files' formatting
+                  excludes = [ "src/parser.c" "src/tree_sitter/parser.h" ];
+                  language = "system";
+                };
+
+                nixpkgs-fmt = {
+                  enable = true;
+                };
+
+                tree-sitter = {
+                  enable = true;
+                  name = "tree-sitter tests";
+                  entry = "${tree-sitter-env}/bin/tree-sitter test";
+                  pass_filenames = false;
+                };
+
+                tree-sitter-files = {
+                  enable = true;
+                  name = "tree-sitter generated files";
+                  entry = "${tree-sitter-env}/bin/tree-sitter generate";
+                  pass_filenames = false;
+                };
+              };
+            };
+          };
+
+          devShells = {
+            default = pkgs.mkShell {
+              nativeBuildInputs = with pkgs; [
+                nodejs-16_x
+                nodePackages.typescript
+                rustc
+                cargo
+                rustfmt
+                clippy
+                (tree-sitter.override { webUISupport = true; })
+              ];
+
+              inherit (checks.pre-commit) shellHook;
+            };
+          };
+
+          packages = {
+            default = packages.tree-sitter-beancount;
+
+            inherit (pkgs.tree-sitter.passthru.builtGrammars) tree-sitter-beancount;
+
+            inherit (pkgs) tree-sitter;
+          };
+        }
+      ) // {
+      overlays = {
+        default = final: prev: {
+          tree-sitter = prev.tree-sitter.override {
+            extraGrammars = {
+              tree-sitter-beancount = {
+                src = ./.;
+              };
+            };
+          };
+        };
+      };
+    };
+}