reorganized code

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true

.eslintignore

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+*.js
+*.mjs
+*.monarch.ts

.eslintrc.json

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+{
+    "root": true,
+    "parser": "@typescript-eslint/parser",
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "parserOptions": {
+        "ecmaVersion": 2017,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint",
+        "header"
+    ],
+    "ignorePatterns": [
+        "**/{node_modules,lib,bin}"
+    ],
+    "rules": {
+        // List of [ESLint rules](https://eslint.org/docs/rules/)
+        "arrow-parens": ["off", "as-needed"],             // do not force arrow function parentheses
+        "constructor-super": "error",                     // checks the correct use of super() in sub-classes
+        "dot-notation": "error",                          // obj.a instead of obj['a'] when possible
+        "eqeqeq": "error",                                // ban '==', don't use 'smart' option!
+        "guard-for-in": "error",                          // needs obj.hasOwnProperty(key) checks
+        "new-parens": "error",                            // new Error() instead of new Error
+        "no-bitwise": "error",                            // bitwise operators &, | can be confused with &&, ||
+        "no-caller": "error",                             // ECMAScript deprecated arguments.caller and arguments.callee
+        "no-cond-assign": "error",                        // assignments if (a = '1') are error-prone
+        "no-debugger": "error",                           // disallow debugger; statements
+        "no-eval": "error",                               // eval is considered unsafe
+        "no-inner-declarations": "off",                   // we need to have 'namespace' functions when using TS 'export ='
+        "no-labels": "error",                             // GOTO is only used in BASIC ;)
+        "no-multiple-empty-lines": ["error", {"max": 1}], // two or more empty lines need to be fused to one
+        "no-new-wrappers": "error",                       // there is no reason to wrap primitve values
+        "no-throw-literal": "error",                      // only throw Error but no objects {}
+        "no-trailing-spaces": "error",                    // trim end of lines
+        "no-unsafe-finally": "error",                     // safe try/catch/finally behavior
+        "no-var": "error",                                // use const and let instead of var
+        "space-before-function-paren": ["error", {        // space in function decl: f() vs async () => {}
+            "anonymous": "never",
+            "asyncArrow": "always",
+            "named": "never"
+        }],
+        "semi": [2, "always"],                            // Always use semicolons at end of statement
+        "quotes": [2, "single", { "avoidEscape": true }], // Prefer single quotes
+        "use-isnan": "error",                             // isNaN(i) Number.isNaN(i) instead of i === NaN
+        // List of [@typescript-eslint rules](https://github.com/typescript-eslint/typescript-eslint/tree/master/packages/eslint-plugin#supported-rules)
+        "@typescript-eslint/adjacent-overload-signatures": "error", // grouping same method names
+        "@typescript-eslint/array-type": ["error", {                // string[] instead of Array<string>
+            "default": "array-simple"
+        }],
+        "@typescript-eslint/ban-types": "error",                    // bans types like String in favor of string
+        "@typescript-eslint/no-inferrable-types": "off",            // don't blame decls like "index: number = 0", esp. in api signatures!
+        "@typescript-eslint/indent": "error",                       // consistent indentation
+        "@typescript-eslint/no-explicit-any": "error",              // don't use :any type
+        "@typescript-eslint/no-misused-new": "error",               // no constructors for interfaces or new for classes
+        "@typescript-eslint/no-namespace": "off",                   // disallow the use of custom TypeScript modules and namespaces 
+        "@typescript-eslint/no-non-null-assertion": "off",          // allow ! operator
+        "@typescript-eslint/parameter-properties": "error",          // no property definitions in class constructors
+        "@typescript-eslint/no-unused-vars": ["error", {            // disallow Unused Variables
+            "argsIgnorePattern": "^_"
+        }],
+        "@typescript-eslint/no-var-requires": "error",              // use import instead of require
+        "@typescript-eslint/prefer-for-of": "error",                // prefer for-of loop over arrays
+        "@typescript-eslint/prefer-namespace-keyword": "error",     // prefer namespace over module in TypeScript
+        "@typescript-eslint/triple-slash-reference": "error",       // ban /// <reference />, prefer imports
+        "@typescript-eslint/type-annotation-spacing": "error",      // consistent space around colon ':'
+        "@typescript-eslint/consistent-type-imports": "error"       // use import type whenever import is only used for type checking
+    }
+}

.gitattributes

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+# For the following file types, normalize line endings to LF on
+# checkin and prevent conversion to CRLF when they are checked out
+# (this is required in order to prevent newline related issues like,
+# for example, after the build script is run)
+**/bin/*.js text eol=lf
+.sh         text eol=lf

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: "Bug report"
+about: Report a reproducible bug or regression.
+labels: 'bug'
+
+---
+
+<!--
+  Please provide a clear and concise description of what the bug is. Include
+  screenshots if needed. Please test using the latest version of the relevant
+  Langium packages to make sure your issue has not already been fixed.
+-->
+
+Langium version:
+Package name:
+
+## Steps To Reproduce
+
+1.
+2.
+
+<!--
+  Your bug will get fixed much faster if we can run your code and it doesn't
+  have dependencies other than Langium. Issues without reproduction steps or
+  code examples may be immediately closed as not actionable.
+-->
+
+Link to code example:
+
+<!--
+  Please provide a link to a repository on GitHub or provide a minimal code 
+  example that reproduces the problem. You may provide a screenshot of some 
+  application if you think it is relevant to your bug report. Here are some 
+  tips for providing a minimal example: https://stackoverflow.com/help/mcve.
+-->
+
+## The current behavior
+
+
+## The expected behavior

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Question
+    url:  https://github.com/TypeFox/langium/discussions
+    about: Please ask questions here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+labels: 'feature-request'
+
+---
+<!-- Please search existing issues to avoid creating duplicates. -->
+<!-- Describe the feature you'd like. -->

.github/ISSUE_TEMPLATE/improvement.md

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+---
+name: General improvement
+about: Suggest an improvement for this project
+
+---
+<!-- Please search existing issues to avoid creating duplicates. -->
+<!-- Describe the improvement you'd like to see in the project. -->

.github/workflows/actions.yml

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+name: Build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Langium CI (${{ matrix.os }})
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 20
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+    - name: Build
+      shell: bash
+      run: |
+        npm ci
+        npm run build:clean
+        npm run validate-exports
+    - name: Test
+      if: success() || failure()
+      shell: bash
+      run: |
+        npm run test
+  lint:
+    name: Langium Lint
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18'
+    - name: Build
+      shell: bash
+      run: |
+        npm ci
+        npm run build:clean
+        npm run langium:generate
+    - name: Check Git Status
+      shell: bash
+      run: git diff --exit-code .
+    - name: Lint
+      shell: bash
+      run: npm run lint

.github/workflows/publish.yml

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+name: Publish
+
+permissions:
+  id-token: write
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    name: Langium Publish
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+    - name: Use Node.js
+      uses: actions/setup-node@v3
+      with:
+        node-version: '18.x'
+        registry-url: 'https://registry.npmjs.org'
+    - name: Build
+      shell: bash
+      run: |
+        npm ci
+        npm run build:clean
+        npm run langium:generate:production --workspace=langium
+        npm run build
+    - name: Test
+      if: success() || failure()
+      shell: bash
+      run: |
+        npm run test
+    - name: Publish NPM Packages
+      shell: bash
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+      # Update the following list when a new npm package is added
+      run: |
+        npm run publish:latest --provenance --workspace=langium
+        npm run publish:latest --provenance --workspace=langium-railroad
+        npm run publish:latest --provenance --workspace=langium-cli
+        npm run publish:latest --provenance --workspace=langium-sprotty
+        npm run publish:latest --provenance --workspace=generator-langium
+        npm run publish:latest --provenance --workspace=langium-arithmetics-dsl
+        npm run publish:latest --provenance --workspace=langium-domainmodel-dsl
+        npm run publish:latest --provenance --workspace=langium-statemachine-dsl
+    - name: Publish VSCode Extension
+      shell: bash
+      run: |
+        npm install -g @vscode/vsce ovsx
+        cd packages/langium-vscode
+        PACKAGE_VERSION=`npm pkg get version --workspaces=false | tr -d \"`
+        vsce package
+        vsce publish -i langium-vscode-$PACKAGE_VERSION.vsix -p ${{ secrets.VSCE_TOKEN }}
+        ovsx publish langium-vscode-$PACKAGE_VERSION.vsix -p ${{ secrets.OVSX_TOKEN }}

.gitignore

@@ -1,4 +1,10 @@
-node_modules/
-*.tsbuildinfo
-lib/
-dist/
+.DS_Store
+.vscode-test/
+coverage/
+dist/
+lib/
+out/
+node_modules/
+*.vsix
+*.tsbuildinfo
+backend/

.gitpod.yml

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+tasks:
+  - init: npm install && npm run build
+    command: npm run watch
+
+ports:
+  - port: 6000-6999
+    onOpen: ignore
+
+vscode:
+  extensions:
+    - nmf.nmf-vscode

.markdownlint.json

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+{
+    "first-line-h1": false,
+    "line-length": false,
+    "no-inline-html": false
+}

.vscode/extensions.json

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+{
+    "recommendations": [
+        "langium.langium-vscode",
+        "dbaeumer.vscode-eslint",
+        "editorconfig.editorconfig",
+        "vitest.explorer"
+    ]
+}