stuff i guess

grammar.js

@@ -0,0 +1,89 @@
+/**
+ * @file Ground VM textual representation highlighter
+ * @author Maxwell Jeffress <maxwelljeffress@proton.me>
+ * @license MIT
+ */
+
+/// <reference types="tree-sitter-cli/dsl" />
+// @ts-check
+
+module.exports = grammar({
+  name: "ground",
+
+  extras: $ => [
+    /\s/,
+    $.comment,
+  ],
+
+  rules: {
+    source_file: $ => repeat($._statement),
+
+    _statement: $ => choice(
+      $.label_definition,
+      $.function_definition,
+      $.struct_definition,
+      $.instruction,
+    ),
+
+    comment: $ => token(seq('#', /.*/)),
+
+    label_definition: $ => seq('@', $.identifier),
+
+    function_definition: $ => seq(
+      'fun',
+      field('name', $.function_reference),
+      field('return_type', $.type_reference),
+      repeat(seq(field('arg_type', $.type_reference), field('arg_name', $.direct_reference))),
+      repeat($._statement),
+      'endfun'
+    ),
+
+    struct_definition: $ => seq(
+      'struct',
+      field('name', $.type_reference),
+      repeat($._statement),
+      'endstruct'
+    ),
+
+    instruction: $ => seq(
+      field('keyword', $.keyword),
+      repeat($._argument)
+    ),
+
+    keyword: $ => choice(
+      'if', 'jump', 'end', 'input', 'print', 'println',
+      'set', 'init', 'gettype', 'exists', 'setlist', 'setlistat',
+      'getlistat', 'getlistsize', 'listappend', 'getstrsize', 'getstrcharat',
+      'add', 'subtract', 'multiply', 'divide', 'equal', 'inequal', 'not',
+      'greater', 'lesser', 'stoi', 'stod', 'tostring', 'return', 'call',
+      'use', 'extern', 'getfield', 'setfield'
+    ),
+
+    _argument: $ => choice(
+      $.value_reference,
+      $.direct_reference,
+      $.line_reference,
+      $.function_reference,
+      $.type_reference,
+      $.string,
+      $.int,
+      $.double,
+      $.char,
+      $.bool
+    ),
+
+    value_reference: $ => seq('$', $.identifier),
+    direct_reference: $ => seq('&', $.identifier),
+    line_reference: $ => seq('%', $.identifier),
+    function_reference: $ => seq('!', $.identifier),
+    type_reference: $ => seq('-', $.identifier),
+
+    identifier: $ => /[a-zA-Z_][a-zA-Z0-9_]*/,
+
+    string: $ => /"[^"]*"/,
+    int: $ => /-?\d+/,
+    double: $ => /-?\d+\.\d+/,
+    char: $ => /'[^']'/,
+    bool: $ => choice('true', 'false'),
+  }
+});