		@@ -1,10 +0,9 @@
		"use strict";
		import { lintRule } from "unified-lint-rule";
		import { visit } from "unist-util-visit";
		import { default as esprima } from "esprima";
		import { default as yaml } from "js-yaml";

		const rule = require("unified-lint-rule");
		const visit = require("unist-util-visit");
		const esprima = require("esprima");
		const yaml = require("js-yaml");
		const remarkLintCodeBlockSyntax = lintRule("remark-lint:code-block-syntax", codeSyntax);
		export default remarkLintCodeBlockSyntax;

		module.exports = rule("remark-lint:code-block-syntax", codeSyntax);

		function codeSyntax(tree, file) {
		@@ -11,0 +10,0 @@ const supportedLangs = ["js", "json", "yaml"];

package.json

		{
		"name": "remark-lint-code-block-syntax",
		"version": "0.2.1",
		"version": "0.3.0",
		"description": "A remark-lint rule to check language syntax in a code block.",
		@@ -16,8 +16,20 @@ "author": "Masafumi Koba",
		"repository": "ybiquitous/remark-lint-code-block-syntax",
		"main": "index.js",
		"files": [],
		"engines": {
		"node": "^12.20.0 \|\| ^14.13.1 \|\| >=16.0.0"
		},
		"type": "module",
		"exports": "./index.js",
		"files": [
		"index.js"
		],
		"scripts": {
		"test": "jest",
		"lint": "npx eslint . && npx prettier --check .",
		"format": "npx prettier --write ."
		"test": "NODE_OPTIONS=--experimental-vm-modules jest",
		"lint": "npm run eslint && npm run prettier:check",
		"lint:fix": "npm run eslint:fix && npm run prettier:write",
		"eslint": "npx eslint --ignore-path=.gitignore .",
		"eslint:fix": "npm run eslint -- --fix",
		"prettier": "npx prettier --ignore-path=.gitignore .",
		"prettier:check": "npm run prettier -- --check",
		"prettier:write": "npm run prettier -- --write",
		"prepublishOnly": "npm test"
		},
		@@ -27,9 +39,21 @@ "dependencies": {
		"js-yaml": "^4.0.0",
		"unified-lint-rule": "^1.0.5",
		"unist-util-visit": "^2.0.2"
		"unified-lint-rule": "^2.0.0",
		"unist-util-visit": "^4.0.0"
		},
		"devDependencies": {
		"jest": "^26.0.1",
		"remark": "^13.0.0"
		"jest": "^27.0.3",
		"remark": "^14.0.1"
		},
		"eslintConfig": {
		"root": true,
		"extends": "eslint:recommended",
		"parserOptions": {
		"sourceType": "module"
		},
		"env": {
		"es2017": true,
		"node": true,
		"jest": true
		}
		}
		}

README.md

		@@ -21,6 +21,16 @@ [![npm](https://img.shields.io/npm/v/remark-lint-code-block-syntax?style=flat-square)](https://www.npmjs.com/package/remark-lint-code-block-syntax)

		Via a command-line argument:

		```console
		$ npx remark -u remark-lint-code-block-syntax
		$ remark --use remark-lint-code-block-syntax
		docs/config.md
		32:1-32:4 warning Invalid JSON: Unexpected token a in JSON at position 128 code-block-syntax remark-lint
		```

		Via a configuration file:

		```json
		{
		"plugins": ["remark-lint-code-block-syntax"]
		}
		```

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