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