.commitlintrc.json

@@ -0,0 +1 @@
+{ "extends": ["@commitlint/config-conventional"] }

.eslintrc.json

@@ -0,0 +1,7 @@
+{
+  "extends": ["conventions", "prettier"],
+  "plugins": ["prettier"],
+  "rules": {
+    "prettier/prettier": "error"
+  }
+}

.github/ISSUE_TEMPLATE/BUG.md

@@ -1,8 +1,8 @@
 ---
-name: "🐛 Bug Report"
+name: '🐛 Bug Report'
-about: "Report an unexpected problem or unintended behavior."
+about: 'Report an unexpected problem or unintended behavior.'
-title: "[Bug]"
+title: '[Bug]'
-labels: "bug"
+labels: 'bug'
 ---
 
 <!--

.github/ISSUE_TEMPLATE/DOCUMENTATION.md

@@ -1,8 +1,8 @@
 ---
-name: "📜 Documentation"
+name: '📜 Documentation'
-about: "Correct spelling errors, improvements or additions to documentation files (README, CONTRIBUTING...)."
+about: 'Correct spelling errors, improvements or additions to documentation files (README, CONTRIBUTING...).'
-title: "[Documentation]"
+title: '[Documentation]'
-labels: "documentation"
+labels: 'documentation'
 ---
 
 <!-- Please make sure your issue has not already been fixed. -->

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -1,8 +1,8 @@
 ---
-name: "✨ Feature Request"
+name: '✨ Feature Request'
-about: "Suggest a new feature idea."
+about: 'Suggest a new feature idea.'
-title: "[Feature]"
+title: '[Feature]'
-labels: "feature request"
+labels: 'feature request'
 ---
 
 <!-- Please make sure your issue has not already been fixed. -->

.github/ISSUE_TEMPLATE/IMPROVEMENT.md

@@ -1,8 +1,8 @@
 ---
-name: "🔧 Improvement"
+name: '🔧 Improvement'
-about: "Improve structure/format/performance/refactor/tests of the code."
+about: 'Improve structure/format/performance/refactor/tests of the code.'
-title: "[Improvement]"
+title: '[Improvement]'
-labels: "improvement"
+labels: 'improvement'
 ---
 
 <!-- Please make sure your issue has not already been fixed. -->

.github/ISSUE_TEMPLATE/QUESTION.md

@@ -1,8 +1,8 @@
 ---
-name: "🙋 Question"
+name: '🙋 Question'
-about: "Further information is requested."
+about: 'Further information is requested.'
-title: "[Question]"
+title: '[Question]'
-labels: "question"
+labels: 'question'
 ---
 
 ### Question

.github/workflows/lint.yml

@@ -1,35 +1,28 @@
-name: "Lint"
+name: 'Lint'
 
 on:
   push:
     branches: [develop]
   pull_request:
-    branches: [main, develop]
+    branches: [master, develop]
 
 jobs:
   lint:
-    runs-on: "ubuntu-latest"
+    runs-on: 'ubuntu-latest'
     steps:
-      - uses: "actions/checkout@v4.2.2"
+      - uses: 'actions/checkout@v3.5.2'
 
-      - name: "Setup Node.js"
+      - name: 'Setup Node.js'
-        uses: "actions/setup-node@v4.1.0"
+        uses: 'actions/setup-node@v3.6.0'
         with:
-          node-version: "lts/*"
+          node-version: 'lts/*'
-          cache: "npm"
+          cache: 'npm'
 
-      - name: "Install dependencies"
+      - name: 'Install dependencies'
-        run: "npm clean-install"
+        run: 'npm clean-install'
 
-      - run: "node --run lint:editorconfig"
+      - run: 'npm run lint:commit -- --to "${{ github.sha }}"'
-      - run: "node --run lint:markdown"
+      - run: 'npm run lint:editorconfig'
-      - run: "node --run lint:eslint"
+      - run: 'npm run lint:markdown'
-      - run: "node --run lint:prettier"
+      - run: 'npm run lint:eslint'
-      - run: "node --run lint:typescript"
+      - run: 'npm run lint:prettier'
-
-  commitlint:
-    runs-on: "ubuntu-latest"
-    steps:
-      - uses: "actions/checkout@v4.2.2"
-
-      - uses: "wagoid/commitlint-github-action@v6.2.0"

.github/workflows/release.yml

@@ -1,37 +1,37 @@
-name: "Release"
+name: 'Release'
 
 on:
   push:
-    branches: [main]
+    branches: [master]
 
 jobs:
   release:
-    runs-on: "ubuntu-latest"
+    runs-on: 'ubuntu-latest'
     permissions:
-      contents: "write"
+      contents: 'write'
-      issues: "write"
+      issues: 'write'
-      pull-requests: "write"
+      pull-requests: 'write'
-      id-token: "write"
+      id-token: 'write'
     steps:
-      - uses: "actions/checkout@v4.2.2"
+      - uses: 'actions/checkout@v3.5.2'
         with:
           fetch-depth: 0
           persist-credentials: false
 
-      - name: "Setup Node.js"
+      - name: 'Setup Node.js'
-        uses: "actions/setup-node@v4.1.0"
+        uses: 'actions/setup-node@v3.6.0'
         with:
-          node-version: "lts/*"
+          node-version: 'lts/*'
-          cache: "npm"
+          cache: 'npm'
 
-      - name: "Install dependencies"
+      - name: 'Install dependencies'
-        run: "npm clean-install"
+        run: 'npm clean-install'
 
-      - name: "Verify the integrity of provenance attestations and registry signatures for installed dependencies"
+      - name: 'Verify the integrity of provenance attestations and registry signatures for installed dependencies'
-        run: "npm audit signatures"
+        run: 'npm audit signatures'
 
-      - name: "Release"
+      - name: 'Release'
-        run: "node --run release"
+        run: 'npm run release'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/test.yml

@@ -1,25 +1,25 @@
-name: "Test"
+name: 'Test'
 
 on:
   push:
     branches: [develop]
   pull_request:
-    branches: [main, develop]
+    branches: [master, develop]
 
 jobs:
   test:
-    runs-on: "ubuntu-latest"
+    runs-on: 'ubuntu-latest'
     steps:
-      - uses: "actions/checkout@v4.2.2"
+      - uses: 'actions/checkout@v3.5.2'
 
-      - name: "Setup Node.js"
+      - name: 'Setup Node.js'
-        uses: "actions/setup-node@v4.1.0"
+        uses: 'actions/setup-node@v3.6.0'
         with:
-          node-version: "lts/*"
+          node-version: 'lts/*'
-          cache: "npm"
+          cache: 'npm'
 
-      - name: "Install dependencies"
+      - name: 'Install dependencies'
-        run: "npm clean-install"
+        run: 'npm clean-install'
 
-      - name: "Test"
+      - name: 'Test'
-        run: "node --run test"
+        run: 'npm run test'

.gitignore

@@ -20,6 +20,10 @@ npm-debug.log*
 
 # IDE - VSCode
 .vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
 
 # misc
 .DS_Store

.husky/commit-msg

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npm run lint:commit -- --edit

.husky/pre-commit

@@ -0,0 +1,5 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npm run lint:staged
+npm run test

.lintstagedrc.json

@@ -0,0 +1,6 @@
+{
+  "*": ["editorconfig-checker"],
+  "*.{js,jsx,ts,tsx}": ["prettier --write", "eslint --fix"],
+  "*.{json,jsonc,yml,yaml}": ["prettier --write"],
+  "*.{md,mdx}": ["prettier --write", "markdownlint-cli2 --fix"]
+}

.markdownlint-cli2.jsonc

@@ -0,0 +1,11 @@
+{
+  "config": {
+    "extends": "markdownlint/style/prettier",
+    "relative-links": true,
+    "default": true,
+    "MD033": false
+  },
+  "globs": ["**/*.{md,mdx}"],
+  "ignores": ["**/node_modules", "**/test/fixtures"],
+  "customRules": ["./src/index.js"]
+}

.markdownlint-cli2.mjs

@@ -1,15 +0,0 @@
-import relativeLinksRule from "./src/index.js"
-
-const config = {
-  config: {
-    extends: "markdownlint/style/prettier",
-    default: true,
-    "relative-links": true,
-    "no-inline-html": false,
-  },
-  globs: ["**/*.md"],
-  ignores: ["**/node_modules", "**/test/fixtures/**"],
-  customRules: [relativeLinksRule],
-}
-
-export default config

.prettierrc.json

@@ -1,3 +1,6 @@
 {
-  "semi": false
+  "singleQuote": true,
+  "jsxSingleQuote": true,
+  "semi": false,
+  "trailingComma": "none"
 }

.releaserc.json

@@ -1,8 +1,18 @@
 {
-  "branches": ["main", { "name": "beta", "prerelease": true }],
+  "branches": ["master"],
   "plugins": [
+    [
       "@semantic-release/commit-analyzer",
+      {
+        "preset": "conventionalcommits"
+      }
+    ],
+    [
       "@semantic-release/release-notes-generator",
+      {
+        "preset": "conventionalcommits"
+      }
+    ],
     "@semantic-release/npm",
     "@semantic-release/github"
   ]

.vscode/extensions.json

@@ -0,0 +1,8 @@
+{
+  "recommendations": [
+    "editorconfig.editorconfig",
+    "esbenp.prettier-vscode",
+    "dbaeumer.vscode-eslint",
+    "davidanson.vscode-markdownlint"
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "prettier.configPath": ".prettierrc.json",
+  "editor.formatOnSave": true,
+  "editor.codeActionsOnSave": {
+    "source.fixAll": true
+  }
+}

LICENSE

@@ -1,6 +1,6 @@
-# MIT License
+MIT License
 
-Copyright (c) Théo LUDWIG <contact@theoludwig.fr>
+Copyright (c) Théo LUDWIG
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -5,12 +5,12 @@
 </p>
 
 <p align="center">
-  <a href="./CONTRIBUTING.md"><img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat" alt="CONTRIBUTING" /></a>
+  <a href="./CONTRIBUTING.md"><img src="https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat" /></a>
   <a href="./LICENSE"><img src="https://img.shields.io/badge/licence-MIT-blue.svg" alt="Licence MIT"/></a>
   <a href="./CODE_OF_CONDUCT.md"><img src="https://img.shields.io/badge/Contributor%20Covenant-v2.0%20adopted-ff69b4.svg" alt="Contributor Covenant" /></a>
   <br />
-  <a href="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/lint.yml"><img src="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/lint.yml/badge.svg?branch=develop" alt="Lint" /></a>
+  <a href="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/lint.yml"><img src="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/lint.yml/badge.svg?branch=develop" /></a>
-  <a href="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/test.yml"><img src="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/test.yml/badge.svg?branch=develop" alt="Test" /></a>
+  <a href="https://github.com/theoludwig/markdownlint-rule-relative-linksactions/workflows/test.yml"><img src="https://github.com/theoludwig/markdownlint-rule-relative-links/actions/workflows/test.yml/badge.svg?branch=develop" /></a>
   <br />
   <a href="https://conventionalcommits.org"><img src="https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg" alt="Conventional Commits" /></a>
   <a href="https://github.com/semantic-release/semantic-release"><img src="https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg" alt="semantic-release" /></a>
@@ -21,7 +21,7 @@
 
 **markdownlint-rule-relative-links** is a [markdownlint](https://github.com/DavidAnson/markdownlint) custom rule to validate relative links.
 
-It ensures that relative links (using `file:` protocol) are working and exists in the file system of the project that uses [markdownlint](https://github.com/DavidAnson/markdownlint).
+It ensures that relative links (using `file:` protocol) are working and not "dead" which means that it exists in the file system of the project that uses [markdownlint](https://github.com/DavidAnson/markdownlint).
 
 ### Example
 
@@ -37,27 +37,15 @@ With `awesome.md` content:
 ```md
 [abc](./abc.txt)
 
-[Invalid link](./invalid.txt)
+[Dead link](./dead.txt)
 ```
 
 Running [markdownlint-cli2](https://github.com/DavidAnson/markdownlint-cli2) with `markdownlint-rule-relative-links` will output:
 
 ```sh
-awesome.md:3 relative-links Relative links should be valid ["./invalid.txt" should exist in the file system]
+awesome.md:3 relative-links Relative links should be valid [Link "./dead.txt" is dead]
 ```
 
-### Additional features
-
-- Support images (e.g: `![Image](./image.png)`).
-- Support links fragments similar to the [built-in `markdownlint` rule - MD051](https://github.com/DavidAnson/markdownlint/blob/main/doc/md051.md) (e.g: `[Link](./awesome.md#heading)`).
-- Ignore external links and absolute paths as it only checks relative links (e.g: `https://example.com/` or `/absolute/path.png`).
-
-### Limitations
-
-- Only images and links defined using markdown syntax are validated, html syntax is ignored (e.g: `<a href="./link.txt" />` or `<img src="./image.png" />`).
-
-Contributions are welcome to improve the rule, and to alleviate these limitations. See [CONTRIBUTING.md](./CONTRIBUTING.md) for more information.
-
 ### Related links
 
 - [DavidAnson/markdownlint#253](https://github.com/DavidAnson/markdownlint/issues/253)
@@ -66,7 +54,7 @@ Contributions are welcome to improve the rule, and to alleviate these limitation
 
 ## Prerequisites
 
-[Node.js](https://nodejs.org/) >= 22.0.0
+- [Node.js](https://nodejs.org/) >= 16.0.0
 
 ## Installation
 
@@ -80,22 +68,18 @@ There are various ways [markdownlint](https://github.com/DavidAnson/markdownlint
 
 We recommend configuring [markdownlint-cli2](https://github.com/DavidAnson/markdownlint-cli2) over [markdownlint-cli](https://github.com/igorshubovych/markdownlint-cli) for compatibility with the [vscode-markdownlint](https://github.com/DavidAnson/vscode-markdownlint) extension.
 
-`.markdownlint-cli2.mjs`
+`.markdownlint-cli2.jsonc`
 
-```js
+```json
-import relativeLinksRule from "markdownlint-rule-relative-links"
+{
-
+  "config": {
-const config = {
+    "default": true,
-  config: {
+    "relative-links": true
-    default: true,
-    "relative-links": true,
   },
-  globs: ["**/*.md"],
+  "globs": ["**/*.{md,mdx}"],
-  ignores: ["**/node_modules"],
+  "ignores": ["**/node_modules"],
-  customRules: [relativeLinksRule],
+  "customRules": ["markdownlint-rule-relative-links"]
 }
-
-export default config
 ```
 
 `package.json`
@@ -111,7 +95,7 @@ export default config
 ## Usage
 
 ```sh
-node --run lint:markdown
+npm run lint:markdown
 ```
 
 ## 💡 Contributing

eslint.config.js

@@ -1,13 +0,0 @@
-import typescriptESLint from "typescript-eslint"
-import configConventions from "eslint-config-conventions"
-
-export default typescriptESLint.config(...configConventions, {
-  files: ["**/*.ts", "**/*.tsx"],
-  languageOptions: {
-    parser: typescriptESLint.parser,
-    parserOptions: {
-      projectService: true,
-      tsconfigRootDir: import.meta.dirname,
-    },
-  },
-})

package.json

@@ -18,8 +18,6 @@
     "markdownlint-rule"
   ],
   "main": "src/index.js",
-  "types": "src/index.d.ts",
-  "type": "module",
   "files": [
     "src"
   ],
@@ -28,35 +26,43 @@
     "provenance": true
   },
   "engines": {
-    "node": ">=22.0.0"
+    "node": ">=16.0.0",
+    "npm": ">=9.0.0"
   },
   "scripts": {
+    "lint:commit": "commitlint",
     "lint:editorconfig": "editorconfig-checker",
     "lint:markdown": "markdownlint-cli2",
-    "lint:eslint": "eslint . --max-warnings 0",
+    "lint:eslint": "eslint . --ignore-path .gitignore",
-    "lint:prettier": "prettier . --check",
+    "lint:prettier": "prettier . --check --ignore-path .gitignore",
-    "lint:typescript": "tsc --noEmit",
+    "lint:staged": "lint-staged",
-    "test": "node --test",
+    "test": "node --test ./test",
-    "release": "semantic-release"
+    "release": "semantic-release",
+    "postinstall": "husky install",
+    "prepublishOnly": "pinst --disable",
+    "postpublish": "pinst --enable"
   },
   "dependencies": {
-    "markdown-it": "14.1.0"
+    "markdown-it": "13.0.1"
   },
   "devDependencies": {
-    "@types/markdown-it": "14.1.2",
+    "@commitlint/cli": "17.6.5",
-    "@types/node": "22.15.17",
+    "@commitlint/config-conventional": "17.6.5",
-    "editorconfig-checker": "6.0.1",
+    "@types/node": "20.3.1",
-    "eslint": "9.26.0",
+    "editorconfig-checker": "5.0.1",
-    "eslint-config-conventions": "19.2.0",
+    "eslint": "8.43.0",
-    "eslint-plugin-promise": "7.2.1",
+    "eslint-config-conventions": "9.0.0",
-    "eslint-plugin-unicorn": "59.0.1",
+    "eslint-config-prettier": "8.8.0",
-    "eslint-plugin-import-x": "4.11.1",
+    "eslint-plugin-import": "2.27.5",
-    "globals": "16.1.0",
+    "eslint-plugin-prettier": "4.2.1",
-    "markdownlint": "0.38.0",
+    "eslint-plugin-promise": "6.1.1",
-    "markdownlint-cli2": "0.18.0",
+    "eslint-plugin-unicorn": "47.0.0",
-    "prettier": "3.5.3",
+    "husky": "8.0.3",
-    "semantic-release": "24.2.3",
+    "lint-staged": "13.2.2",
-    "typescript-eslint": "8.32.0",
+    "markdownlint": "0.29.0",
-    "typescript": "5.8.3"
+    "markdownlint-cli2": "0.8.1",
+    "pinst": "3.0.0",
+    "prettier": "2.8.8",
+    "semantic-release": "21.0.5"
   }
 }

src/index.d.ts

@@ -1,8 +0,0 @@
-import type MarkdownIt from "markdown-it"
-import type { Rule } from "markdownlint"
-
-declare const relativeLinksRule: Rule
-export default relativeLinksRule
-
-declare const markdownIt: MarkdownIt
-export { markdownIt }

src/index.js

@@ -1,120 +1,63 @@
-import { pathToFileURL } from "node:url"
+'use strict'
-import fs from "node:fs"
 
-import { filterTokens } from "./markdownlint-rule-helpers/helpers.js"
+const { pathToFileURL } = require('node:url')
-import {
+const fs = require('node:fs')
+
+const {
+  filterTokens,
+  addError,
   convertHeadingToHTMLFragment,
-  getMarkdownHeadings,
+  getMarkdownHeadings
-  getMarkdownIdOrAnchorNameFragments,
+} = require('./utils.js')
-  isValidIntegerString,
-  getNumberOfLines,
-  getLineNumberStringFromFragment,
-  lineFragmentRe,
-} from "./utils.js"
 
-export { markdownIt } from "./utils.js"
+const customRule = {
-
+  names: ['relative-links'],
-/** @typedef {import('markdownlint').Rule} MarkdownLintRule */
+  description: 'Relative links should be valid',
-
+  tags: ['links'],
-/**
- * @type {MarkdownLintRule}
- */
-const relativeLinksRule = {
-  names: ["relative-links"],
-  description: "Relative links should be valid",
-  tags: ["links"],
-  parser: "markdownit",
   function: (params, onError) => {
-    filterTokens(params, "inline", (token) => {
+    filterTokens(params, 'inline', (token) => {
-      const children = token.children ?? []
+      token.children.forEach((child) => {
-      for (const child of children) {
+        const { lineNumber, type, attrs } = child
-        const { type, attrs, lineNumber } = child
 
-        /** @type {string | undefined} */
+        /** @type {string | null} */
-        let hrefSrc
+        let hrefSrc = null
 
-        if (type === "link_open") {
+        if (type === 'link_open') {
-          for (const attr of attrs) {
+          attrs.forEach((attr) => {
-            if (attr[0] === "href") {
+            if (attr[0] === 'href') {
               hrefSrc = attr[1]
-              break
-            }
             }
+          })
         }
 
-        if (type === "image") {
+        if (type === 'image') {
-          for (const attr of attrs) {
+          attrs.forEach((attr) => {
-            if (attr[0] === "src") {
+            if (attr[0] === 'src') {
               hrefSrc = attr[1]
-              break
-            }
             }
+          })
         }
 
-        if (hrefSrc == null) {
+        if (hrefSrc != null) {
-          continue
-        }
-
           const url = new URL(hrefSrc, pathToFileURL(params.name))
           const isRelative =
-          url.protocol === "file:" &&
+            url.protocol === 'file:' && !hrefSrc.startsWith('/')
-          !hrefSrc.startsWith("/") &&
+          if (isRelative) {
-          !hrefSrc.startsWith("#")
+            const detail = `Link "${hrefSrc}" is not valid`
-
-        if (!isRelative) {
-          continue
-        }
-
-        const detail = `"${hrefSrc}"`
 
             if (!fs.existsSync(url)) {
-          onError({
+              addError(onError, lineNumber, detail)
-            lineNumber,
+              return
-            detail: `${detail} should exist in the file system`,
-          })
-          continue
             }
 
-        if (url.hash.length <= 0) {
+            if (type === 'link_open' && url.hash !== '') {
-          if (hrefSrc.includes("#")) {
+              const fileContent = fs.readFileSync(url, { encoding: 'utf8' })
-            if (type === "image") {
-              onError({
-                lineNumber,
-                detail: `${detail} should not have a fragment identifier as it is an image`,
-              })
-              continue
-            }
-
-            onError({
-              lineNumber,
-              detail: `${detail} should have a valid fragment identifier`,
-            })
-            continue
-          }
-          continue
-        }
-
-        if (type === "image") {
-          onError({
-            lineNumber,
-            detail: `${detail} should not have a fragment identifier as it is an image`,
-          })
-          continue
-        }
-
-        if (!url.pathname.endsWith(".md")) {
-          continue
-        }
-
-        const fileContent = fs.readFileSync(url, { encoding: "utf8" })
               const headings = getMarkdownHeadings(fileContent)
-        const idOrAnchorNameHTMLFragments =
-          getMarkdownIdOrAnchorNameFragments(fileContent)
 
               /** @type {Map<string, number>} */
               const fragments = new Map()
 
-        const fragmentsHTML = headings.map((heading) => {
+              const headingsHTMLFragments = headings.map((heading) => {
                 const fragment = convertHeadingToHTMLFragment(heading)
                 const count = fragments.get(fragment) ?? 0
                 fragments.set(fragment, count + 1)
@@ -124,52 +67,15 @@ const relativeLinksRule = {
                 return fragment
               })
 
-        fragmentsHTML.push(...idOrAnchorNameHTMLFragments)
+              if (!headingsHTMLFragments.includes(url.hash)) {
-
+                addError(onError, lineNumber, detail)
-        if (!fragmentsHTML.includes(url.hash)) {
-          if (url.hash.startsWith("#L")) {
-            const lineNumberFragmentString = getLineNumberStringFromFragment(
-              url.hash,
-            )
-
-            const hasOnlyDigits = isValidIntegerString(lineNumberFragmentString)
-            if (!hasOnlyDigits) {
-              if (lineFragmentRe.test(url.hash)) {
-                continue
               }
-
-              onError({
-                lineNumber,
-                detail: `${detail} should have a valid fragment identifier`,
-              })
-              continue
             }
-
-            const lineNumberFragment = Number.parseInt(
-              lineNumberFragmentString,
-              10,
-            )
-            const numberOfLines = getNumberOfLines(fileContent)
-            if (lineNumberFragment > numberOfLines) {
-              onError({
-                lineNumber,
-                detail: `${detail} should have a valid fragment identifier, ${detail} should have at least ${lineNumberFragment} lines to be valid`,
-              })
-              continue
-            }
-
-            continue
-          }
-
-          onError({
-            lineNumber,
-            detail: `${detail} should have a valid fragment identifier`,
-          })
-          continue
           }
         }
       })
-  },
+    })
+  }
 }
 
-export default relativeLinksRule
+module.exports = customRule

src/markdownlint-rule-helpers/helpers.js

@@ -1,33 +0,0 @@
-/**
- * Dependency Vendoring of `markdownlint-rule-helpers`
- * @see https://www.npmjs.com/package/markdownlint-rule-helpers
- */
-
-/** @typedef {import('markdownlint').RuleParams} MarkdownLintRuleParams */
-/** @typedef {import('markdownlint').MarkdownItToken} MarkdownItToken */
-
-/**
- * Calls the provided function for each matching token.
- *
- * @param {MarkdownLintRuleParams} params RuleParams instance.
- * @param {string} type Token type identifier.
- * @param {(token: MarkdownItToken) => void} handler Callback function.
- * @returns {void}
- */
-export const filterTokens = (params, type, handler) => {
-  for (const token of params.parsers.markdownit.tokens) {
-    if (token.type === type) {
-      handler(token)
-    }
-  }
-}
-
-/**
- * Gets a Regular Expression for matching the specified HTML attribute.
- *
- * @param {string} name HTML attribute name.
- * @returns {RegExp} Regular Expression for matching.
- */
-export const getHtmlAttributeRe = (name) => {
-  return new RegExp(`\\s${name}\\s*=\\s*['"]?([^'"\\s>]*)`, "iu")
-}

src/utils.js

@@ -1,46 +1,80 @@
-import MarkdownIt from "markdown-it"
+const MarkdownIt = require('markdown-it')
 
-import { getHtmlAttributeRe } from "./markdownlint-rule-helpers/helpers.js"
+/**
+ * Calls the provided function for each matching token.
+ *
+ * @param {Object} params RuleParams instance.
+ * @param {string} type Token type identifier.
+ * @param {Function} handler Callback function.
+ * @returns {void}
+ */
+const filterTokens = (params, type, handler) => {
+  for (const token of params.tokens) {
+    if (token.type === type) {
+      handler(token)
+    }
+  }
+}
 
-export const markdownIt = new MarkdownIt({ html: true })
+/**
-
+ * Adds a generic error object via the onError callback.
-export const lineFragmentRe = /^#(?:L\d+(?:C\d+)?-L\d+(?:C\d+)?|L\d+)$/
+ *
+ * @param {Object} onError RuleOnError instance.
+ * @param {number} lineNumber Line number.
+ * @param {string} [detail] Error details.
+ * @param {string} [context] Error context.
+ * @param {number[]} [range] Column and length of error.
+ * @param {Object} [fixInfo] RuleOnErrorFixInfo instance.
+ * @returns {void}
+ */
+const addError = (onError, lineNumber, detail, context, range, fixInfo) => {
+  onError({
+    lineNumber,
+    detail,
+    context,
+    range,
+    fixInfo
+  })
+}
 
 /**
  * Converts a Markdown heading into an HTML fragment according to the rules
  * used by GitHub.
  *
- * @see https://github.com/DavidAnson/markdownlint/blob/d01180ec5a014083ee9d574b693a8d7fbc1e566d/lib/md051.js#L1
+ * Taken from <https://github.com/DavidAnson/markdownlint/blob/d01180ec5a014083ee9d574b693a8d7fbc1e566d/lib/md051.js#L19>
+ *
  * @param {string} inlineText Inline token for heading.
  * @returns {string} Fragment string for heading.
  */
-export const convertHeadingToHTMLFragment = (inlineText) => {
+const convertHeadingToHTMLFragment = (inlineText) => {
   return (
-    "#" +
+    '#' +
     encodeURIComponent(
       inlineText
         .toLowerCase()
         // RegExp source with Ruby's \p{Word} expanded into its General Categories
+        // eslint-disable-next-line max-len
         // https://github.com/gjtorikian/html-pipeline/blob/main/lib/html/pipeline/toc_filter.rb
         // https://ruby-doc.org/core-3.0.2/Regexp.html
         .replace(
           /[^\p{Letter}\p{Mark}\p{Number}\p{Connector_Punctuation}\- ]/gu,
-          "",
+          ''
         )
-        .replace(/ /gu, "-"),
+        .replace(/ /gu, '-')
     )
   )
 }
 
-const headingTags = new Set(["h1", "h2", "h3", "h4", "h5", "h6"])
+const headingTags = new Set(['h1', 'h2', 'h3', 'h4', 'h5', 'h6'])
-const ignoredTokens = new Set(["heading_open", "heading_close"])
+const ignoredTokens = new Set(['heading_open', 'heading_close'])
 
 /**
  * Gets the headings from a Markdown string.
  * @param {string} content
  * @returns {string[]}
  */
-export const getMarkdownHeadings = (content) => {
+const getMarkdownHeadings = (content) => {
+  const markdownIt = new MarkdownIt({ html: true })
   const tokens = markdownIt.parse(content, {})
 
   /** @type {string[]} */
@@ -51,9 +85,9 @@ export const getMarkdownHeadings = (content) => {
 
   for (const token of tokens) {
     if (headingTags.has(token.tag)) {
-      if (token.type === "heading_open") {
+      if (token.type === 'heading_open') {
         headingToken = token.markup
-      } else if (token.type === "heading_close") {
+      } else if (token.type === 'heading_close') {
         headingToken = null
       }
     }
@@ -66,88 +100,21 @@ export const getMarkdownHeadings = (content) => {
       continue
     }
 
-    const children = token.children ?? []
-
     headings.push(
-      `${children
+      `${token.children
         .map((token) => {
           return token.content
         })
-        .join("")}`,
+        .join('')}`
     )
   }
 
   return headings
 }
 
-const nameHTMLAttributeRegex = getHtmlAttributeRe("name")
+module.exports = {
-const idHTMLAttributeRegex = getHtmlAttributeRe("id")
+  filterTokens,
-
+  addError,
-/**
+  convertHeadingToHTMLFragment,
- * Gets the id or anchor name fragments from a Markdown string.
+  getMarkdownHeadings
- * @param {string} content
- * @returns {string[]}
- */
-export const getMarkdownIdOrAnchorNameFragments = (content) => {
-  const tokens = markdownIt.parse(content, {})
-
-  /** @type {string[]} */
-  const result = []
-
-  for (const token of tokens) {
-    const regexMatch =
-      idHTMLAttributeRegex.exec(token.content) ||
-      nameHTMLAttributeRegex.exec(token.content)
-    if (regexMatch == null) {
-      continue
-    }
-
-    const idOrName = regexMatch[1]
-    if (idOrName == null || idOrName.length <= 0) {
-      continue
-    }
-
-    const htmlFragment = "#" + idOrName
-    if (!result.includes(htmlFragment)) {
-      result.push(htmlFragment)
-    }
-  }
-
-  return result
-}
-
-/**
- * Checks if a string is a valid integer.
- *
- * Using `Number.parseInt` combined with `Number.isNaN` will not be sufficient enough because `Number.parseInt("1abc", 10)` will return `1` (a valid number) instead of `NaN`.
- *
- * @param {string} value
- * @returns {boolean}
- * @example isValidIntegerString("1") // true
- * @example isValidIntegerString("45") // true
- * @example isValidIntegerString("1abc") // false
- * @example isValidIntegerString("1.0") // false
- */
-export const isValidIntegerString = (value) => {
-  const regex = /^\d+$/
-  return regex.test(value)
-}
-
-/**
- * Gets the number of lines in a string, based on the number of `\n` characters.
- * @param {string} content
- * @returns {number}
- */
-export const getNumberOfLines = (content) => {
-  return content.split("\n").length
-}
-
-/**
- * Gets the line number string from a fragment.
- * @param {string} fragment
- * @returns {string}
- * @example getLineNumberStringFromFragment("#L50") // 50
- */
-export const getLineNumberStringFromFragment = (fragment) => {
-  return fragment.slice(2)
 }

test/basic.test.js

@@ -0,0 +1,46 @@
+const test = require('node:test')
+const assert = require('node:assert/strict')
+
+const { markdownlint } = require('markdownlint').promises
+
+const relativeLinks = require('../src/index.js')
+
+test('ensure the rule validate correctly', async () => {
+  const lintResults = await markdownlint({
+    files: ['test/fixtures/Valid.md', 'test/fixtures/Invalid.md'],
+    config: {
+      default: false,
+      'relative-links': true
+    },
+    customRules: [relativeLinks]
+  })
+  assert.equal(lintResults['test/fixtures/Valid.md'].length, 0)
+  assert.equal(lintResults['test/fixtures/Invalid.md'].length, 3)
+
+  assert.equal(
+    lintResults['test/fixtures/Invalid.md'][0]?.ruleDescription,
+    'Relative links should be valid'
+  )
+  assert.equal(
+    lintResults['test/fixtures/Invalid.md'][0]?.errorDetail,
+    'Link "./basic.test.js" is not valid'
+  )
+
+  assert.equal(
+    lintResults['test/fixtures/Invalid.md'][1]?.ruleDescription,
+    'Relative links should be valid'
+  )
+  assert.equal(
+    lintResults['test/fixtures/Invalid.md'][1]?.errorDetail,
+    'Link "../image.png" is not valid'
+  )
+
+  assert.equal(
+    lintResults['test/fixtures/Invalid.md'][2]?.ruleDescription,
+    'Relative links should be valid'
+  )
+  assert.equal(
+    lintResults['test/fixtures/Invalid.md'][2]?.errorDetail,
+    'Link "./Valid.md#not-existing-heading" is not valid'
+  )
+})

test/fixtures/Invalid.md

@@ -0,0 +1,19 @@
+# Invalid
+
+[basic.js](./basic.test.js)
+
+![Image](../image.png)
+
+[Link fragment](./Valid.md#not-existing-heading)
+
+## Existing Heading
+
+### Repeated Heading
+
+Text
+
+### Repeated Heading
+
+Text
+
+### Repeated Heading

test/fixtures/Valid.md

@@ -0,0 +1,21 @@
+# Valid
+
+[basic.js](../basic.test.js)
+
+![Image](./image.png)
+
+![Absolute Path](/absolute/path.png)
+
+[External https link](https://example.com/)
+
+[External https link 2](https:./external.https)
+
+[External ftp link](ftp:./external.ftp)
+
+[Link fragment](./Invalid.md#existing-heading)
+
+[Link fragment Repeated 0](./Invalid.md#repeated-heading)
+
+[Link fragment Repeated 1](./Invalid.md#repeated-heading-1)
+
+[Link fragment Repeated 2](./Invalid.md#repeated-heading-2)

test/fixtures/invalid/empty-id-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<div id>Content</div>

test/fixtures/invalid/empty-id-fragment/empty-id-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment](./awesome.md#)

test/fixtures/invalid/ignore-empty-fragment-checking-for-image.md

@@ -1,3 +0,0 @@
-# Invalid
-
-![Image](../image.png#)

test/fixtures/invalid/ignore-fragment-checking-for-image.md

@@ -1,3 +0,0 @@
-# Invalid
-
-![Image](../image.png#non-existing-fragment)

test/fixtures/invalid/ignore-name-fragment-if-not-an-anchor/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<input name="name-should-be-ignored" id="id-after-name" />

test/fixtures/invalid/ignore-name-fragment-if-not-an-anchor/ignore-name-fragment-if-not-an-anchor.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Invalid](./awesome.md#name-should-be-ignored)

test/fixtures/invalid/ignore-not-an-id-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<div data-id="not-an-id-should-be-ignored">Content</div>

test/fixtures/invalid/ignore-not-an-id-fragment/ignore-not-an-id-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Invalid](./awesome.md#not-an-id-should-be-ignored)

test/fixtures/invalid/invalid-heading-case-sensitive/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-## Existing Heading

test/fixtures/invalid/invalid-heading-case-sensitive/invalid-heading-case-sensitive.md

@@ -1,3 +0,0 @@
-# Valid
-
-[Link fragment](./awesome.md#ExistIng-Heading)

test/fixtures/invalid/invalid-heading-with-L-fragment/awesome.md

@@ -1 +0,0 @@
-# Awesome

test/fixtures/invalid/invalid-heading-with-L-fragment/invalid-heading-with-L-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment line number 7](./awesome.md#L7abc)

test/fixtures/invalid/invalid-line-column-range-number-fragment/awesome.md

@@ -1 +0,0 @@
-# Awesome

test/fixtures/invalid/invalid-line-column-range-number-fragment/invalid-line-column-range-number-fragment.md

@@ -1,31 +0,0 @@
-# Invalid
-
-[Invalid](./awesome.md#L12-not-a-line-link)
-
-[Invalid](./awesome.md#l7)
-
-[Invalid](./awesome.md#L)
-
-[Invalid](./awesome.md#L7extra)
-
-[Invalid](./awesome.md#L30C)
-
-[Invalid](./awesome.md#L30Cextra)
-
-[Invalid](./awesome.md#L30L12)
-
-[Invalid](./awesome.md#L30C12)
-
-[Invalid](./awesome.md#L30C11-)
-
-[Invalid](./awesome.md#L30C11-L)
-
-[Invalid](./awesome.md#L30C11-L31C)
-
-[Invalid](./awesome.md#L30C11-C31)
-
-[Invalid](./awesome.md#C30)
-
-[Invalid](./awesome.md#C11-C31)
-
-[Invalid](./awesome.md#C11-L4C31)

test/fixtures/invalid/invalid-line-number-fragment/awesome.md

@@ -1 +0,0 @@
-# Awesome

test/fixtures/invalid/invalid-line-number-fragment/invalid-line-number-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment line number 7](./awesome.md#L7)

test/fixtures/invalid/non-existing-anchor-name-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<a name="existing-heading-anchor">Link</a>

test/fixtures/invalid/non-existing-anchor-name-fragment/non-existing-anchor-name-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment](./awesome.md#non-existing-anchor-name-fragment)

test/fixtures/invalid/non-existing-element-id-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<div id="existing-element-id-fragment">Content</div>

test/fixtures/invalid/non-existing-element-id-fragment/non-existing-element-id-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment](./awesome.md#non-existing-element-id-fragment)

test/fixtures/invalid/non-existing-file.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[File](./index.test.js)

test/fixtures/invalid/non-existing-heading-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-## Existing Heading

test/fixtures/invalid/non-existing-heading-fragment/non-existing-heading-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment](./awesome.md#non-existing-heading)

test/fixtures/invalid/non-existing-image.md

@@ -1,3 +0,0 @@
-# Invalid
-
-![Image](./image.png)

test/fixtures/valid/existing-anchor-name-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<a name="existing-heading-anchor">Link</a>

test/fixtures/valid/existing-anchor-name-fragment/existing-anchor-name-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment](./awesome.md#existing-heading-anchor)

test/fixtures/valid/existing-element-id-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-<div id="existing-element-id-fragment">Content</div>

test/fixtures/valid/existing-element-id-fragment/existing-element-id-fragment.md

@@ -1,3 +0,0 @@
-# Invalid
-
-[Link fragment](./awesome.md#existing-element-id-fragment)

test/fixtures/valid/existing-file.md

@@ -1,3 +0,0 @@
-# Valid
-
-[File](../../index.test.js)

test/fixtures/valid/existing-heading-fragment/awesome.md

@@ -1,13 +0,0 @@
-# Awesome
-
-## Existing Heading
-
-### Repeated Heading
-
-Text
-
-### Repeated Heading
-
-Text
-
-### Repeated Heading

test/fixtures/valid/existing-heading-fragment/existing-heading-fragment.md

@@ -1,9 +0,0 @@
-# Valid
-
-[Link fragment](./awesome.md#existing-heading)
-
-[Link fragment Repeated 0](./awesome.md#repeated-heading)
-
-[Link fragment Repeated 1](./awesome.md#repeated-heading-1)
-
-[Link fragment Repeated 2](./awesome.md#repeated-heading-2)

test/fixtures/valid/existing-heading-with-accents/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-## Développement

test/fixtures/valid/existing-heading-with-accents/existing-heading-with-accents.md

@@ -1,3 +0,0 @@
-# Valid
-
-[Link fragment](./awesome.md#développement)

test/fixtures/valid/existing-image.md

@@ -1,3 +0,0 @@
-# Valid
-
-![Image](../image.png)

test/fixtures/valid/ignore-absolute-paths.md

@@ -1,3 +0,0 @@
-# Valid
-
-![Absolute Path](/absolute/path.png)

test/fixtures/valid/ignore-external-links.md

@@ -1,7 +0,0 @@
-# Valid
-
-[External https link](https://example.com/)
-
-[External https link 2](https:./external.https)
-
-[External ftp link](ftp:./external.ftp)

test/fixtures/valid/ignore-fragment-checking-in-own-file.md

@@ -1,5 +0,0 @@
-# Valid
-
-<div id="existing-element-id-fragment">Content</div>
-
-[Link fragment](#non-existing-element-id-fragment)

test/fixtures/valid/only-parse-markdown-files-for-fragments/awesome.html

@@ -1,9 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Awesome</title>
-  </head>
-  <body></body>
-</html>

test/fixtures/valid/only-parse-markdown-files-for-fragments/only-parse-markdown-files-for-fragments.md

@@ -1,7 +0,0 @@
-# Valid
-
-[Link fragment HTML](./awesome.html#existing-heading)
-
-[Link fragment TXT](./abc.txt#existing-heading)
-
-[Link fragment Image](../../image.png#existing-heading)

test/fixtures/valid/valid-heading-like-number-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-## L7

test/fixtures/valid/valid-heading-like-number-fragment/valid-heading-like-number-fragment.md

@@ -1,3 +0,0 @@
-# Valid
-
-[Link fragment](./awesome.md#l7)

test/fixtures/valid/valid-line-column-range-number-fragment/awesome.md

@@ -1,3 +0,0 @@
-# Awesome
-
-## L12 Not A Line Link

test/fixtures/valid/valid-line-column-range-number-fragment/valid-line-column-range-number-fragment.md

@@ -1,11 +0,0 @@
-# Valid
-
-[Valid](./awesome.md#l12-not-a-line-link)
-
-[Valid](./awesome.md#L30-L31)
-
-[Valid](./awesome.md#L3C24-L88)
-
-[Valid](./awesome.md#L304-L314C98)
-
-[Valid](./awesome.md#L200C4-L3244C2)

test/fixtures/valid/valid-line-number-fragment/awesome.md

@@ -1,9 +0,0 @@
-# Awesome
-
-ABC
-
-Line 5
-
-Line 7 Text
-
-## L7

test/fixtures/valid/valid-line-number-fragment/valid-line-number-fragment.md

@@ -1,3 +0,0 @@
-# Valid
-
-[Link fragment line number 7](./awesome.md#L7)

test/index.test.js

@@ -1,250 +0,0 @@
-import { test } from "node:test"
-import assert from "node:assert/strict"
-
-import * as markdownlint from "markdownlint/promise"
-
-import relativeLinksRule, { markdownIt } from "../src/index.js"
-
-/**
- *
- * @param {string} fixtureFile
- * @returns
- */
-const validateMarkdownLint = async (fixtureFile) => {
-  const lintResults = await markdownlint.lint({
-    files: [fixtureFile],
-    config: {
-      default: false,
-      "relative-links": true,
-    },
-    customRules: [relativeLinksRule],
-    markdownItFactory: () => {
-      return markdownIt
-    },
-  })
-  return lintResults[fixtureFile]
-}
-
-test("ensure the rule validates correctly", async (t) => {
-  await t.test("should be invalid", async (t) => {
-    const testCases = [
-      {
-        name: "should be invalid with an empty id fragment",
-        fixturePath:
-          "test/fixtures/invalid/empty-id-fragment/empty-id-fragment.md",
-        errors: ['"./awesome.md#" should have a valid fragment identifier'],
-      },
-      {
-        name: "should be invalid with a name fragment other than for an anchor",
-        fixturePath:
-          "test/fixtures/invalid/ignore-name-fragment-if-not-an-anchor/ignore-name-fragment-if-not-an-anchor.md",
-        errors: [
-          '"./awesome.md#name-should-be-ignored" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with a non-existing id fragment (data-id !== id)",
-        fixturePath:
-          "test/fixtures/invalid/ignore-not-an-id-fragment/ignore-not-an-id-fragment.md",
-        errors: [
-          '"./awesome.md#not-an-id-should-be-ignored" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with uppercase letters in fragment (case sensitive)",
-        fixturePath:
-          "test/fixtures/invalid/invalid-heading-case-sensitive/invalid-heading-case-sensitive.md",
-        errors: [
-          '"./awesome.md#ExistIng-Heading" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with invalid heading with #L fragment",
-        fixturePath:
-          "test/fixtures/invalid/invalid-heading-with-L-fragment/invalid-heading-with-L-fragment.md",
-        errors: [
-          '"./awesome.md#L7abc" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with a invalid line column range number fragment",
-        fixturePath:
-          "test/fixtures/invalid/invalid-line-column-range-number-fragment/invalid-line-column-range-number-fragment.md",
-        errors: [
-          '"./awesome.md#L12-not-a-line-link" should have a valid fragment identifier',
-          '"./awesome.md#l7" should have a valid fragment identifier',
-          '"./awesome.md#L" should have a valid fragment identifier',
-          '"./awesome.md#L7extra" should have a valid fragment identifier',
-          '"./awesome.md#L30C" should have a valid fragment identifier',
-          '"./awesome.md#L30Cextra" should have a valid fragment identifier',
-          '"./awesome.md#L30L12" should have a valid fragment identifier',
-          '"./awesome.md#L30C12" should have a valid fragment identifier',
-          '"./awesome.md#L30C11-" should have a valid fragment identifier',
-          '"./awesome.md#L30C11-L" should have a valid fragment identifier',
-          '"./awesome.md#L30C11-L31C" should have a valid fragment identifier',
-          '"./awesome.md#L30C11-C31" should have a valid fragment identifier',
-          '"./awesome.md#C30" should have a valid fragment identifier',
-          '"./awesome.md#C11-C31" should have a valid fragment identifier',
-          '"./awesome.md#C11-L4C31" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with a invalid line number fragment",
-        fixturePath:
-          "test/fixtures/invalid/invalid-line-number-fragment/invalid-line-number-fragment.md",
-        errors: [
-          '"./awesome.md#L7" should have a valid fragment identifier, "./awesome.md#L7" should have at least 7 lines to be valid',
-        ],
-      },
-      {
-        name: "should be invalid with a non-existing anchor name fragment",
-        fixturePath:
-          "test/fixtures/invalid/non-existing-anchor-name-fragment/non-existing-anchor-name-fragment.md",
-        errors: [
-          '"./awesome.md#non-existing-anchor-name-fragment" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with a non-existing element id fragment",
-        fixturePath:
-          "test/fixtures/invalid/non-existing-element-id-fragment/non-existing-element-id-fragment.md",
-        errors: [
-          '"./awesome.md#non-existing-element-id-fragment" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with a non-existing heading fragment",
-        fixturePath:
-          "test/fixtures/invalid/non-existing-heading-fragment/non-existing-heading-fragment.md",
-        errors: [
-          '"./awesome.md#non-existing-heading" should have a valid fragment identifier',
-        ],
-      },
-      {
-        name: "should be invalid with a link to an image with a empty fragment",
-        fixturePath:
-          "test/fixtures/invalid/ignore-empty-fragment-checking-for-image.md",
-        errors: [
-          '"../image.png#" should not have a fragment identifier as it is an image',
-        ],
-      },
-      {
-        name: "should be invalid with a link to an image with a fragment",
-        fixturePath:
-          "test/fixtures/invalid/ignore-fragment-checking-for-image.md",
-        errors: [
-          '"../image.png#non-existing-fragment" should not have a fragment identifier as it is an image',
-        ],
-      },
-      {
-        name: "should be invalid with a non-existing file",
-        fixturePath: "test/fixtures/invalid/non-existing-file.md",
-        errors: ['"./index.test.js" should exist in the file system'],
-      },
-      {
-        name: "should be invalid with a non-existing image",
-        fixturePath: "test/fixtures/invalid/non-existing-image.md",
-        errors: ['"./image.png" should exist in the file system'],
-      },
-    ]
-
-    for (const { name, fixturePath, errors } of testCases) {
-      await t.test(name, async () => {
-        const lintResults = (await validateMarkdownLint(fixturePath)) ?? []
-        const errorsDetails = lintResults.map((result) => {
-          assert.deepEqual(result.ruleNames, relativeLinksRule.names)
-          assert.deepEqual(
-            result.ruleDescription,
-            relativeLinksRule.description,
-          )
-          return result.errorDetail
-        })
-        assert.deepStrictEqual(
-          errorsDetails,
-          errors,
-          `${fixturePath}: Expected errors`,
-        )
-      })
-    }
-  })
-
-  await t.test("should be valid", async (t) => {
-    const testCases = [
-      {
-        name: "should be valid with an existing anchor name fragment",
-        fixturePath:
-          "test/fixtures/valid/existing-anchor-name-fragment/existing-anchor-name-fragment.md",
-      },
-      {
-        name: "should be valid with an existing element id fragment",
-        fixturePath:
-          "test/fixtures/valid/existing-element-id-fragment/existing-element-id-fragment.md",
-      },
-      {
-        name: "should be valid with an existing heading fragment",
-        fixturePath:
-          "test/fixtures/valid/existing-heading-fragment/existing-heading-fragment.md",
-      },
-      {
-        name: 'should be valid with an existing heading fragment with accents (e.g: "é")',
-        fixturePath:
-          "test/fixtures/valid/existing-heading-with-accents/existing-heading-with-accents.md",
-      },
-      {
-        name: "should only parse markdown files for fragments checking",
-        fixturePath:
-          "test/fixtures/valid/only-parse-markdown-files-for-fragments/only-parse-markdown-files-for-fragments.md",
-      },
-      {
-        name: "should support lines and columns range numbers in link fragments",
-        fixturePath:
-          "test/fixtures/valid/valid-line-column-range-number-fragment/valid-line-column-range-number-fragment.md",
-      },
-      {
-        name: 'should be valid with valid heading "like" line number fragment',
-        fixturePath:
-          "test/fixtures/valid/valid-heading-like-number-fragment/valid-heading-like-number-fragment.md",
-      },
-      {
-        name: "should be valid with valid line number fragment",
-        fixturePath:
-          "test/fixtures/valid/valid-line-number-fragment/valid-line-number-fragment.md",
-      },
-      {
-        name: "should be valid with an existing file",
-        fixturePath: "test/fixtures/valid/existing-file.md",
-      },
-      {
-        name: "should be valid with an existing image",
-        fixturePath: "test/fixtures/valid/existing-image.md",
-      },
-      {
-        name: "should ignore absolute paths",
-        fixturePath: "test/fixtures/valid/ignore-absolute-paths.md",
-      },
-      {
-        name: "should ignore external links",
-        fixturePath: "test/fixtures/valid/ignore-external-links.md",
-      },
-      {
-        name: "should ignore checking fragment in own file",
-        fixturePath:
-          "test/fixtures/valid/ignore-fragment-checking-in-own-file.md",
-      },
-    ]
-
-    for (const { name, fixturePath } of testCases) {
-      await t.test(name, async () => {
-        const lintResults = (await validateMarkdownLint(fixturePath)) ?? []
-        const errorsDetails = lintResults.map((result) => {
-          return result.errorDetail
-        })
-        assert.equal(
-          errorsDetails.length,
-          0,
-          `${fixturePath}: Expected no errors, got ${errorsDetails.join(", ")}`,
-        )
-      })
-    }
-  })
-})

test/utils.test.js

@@ -1,79 +1,37 @@
-import { test } from "node:test"
+const test = require('node:test')
-import assert from "node:assert/strict"
+const assert = require('node:assert/strict')
 
-import {
+const {
   convertHeadingToHTMLFragment,
-  getMarkdownHeadings,
+  getMarkdownHeadings
-  getMarkdownIdOrAnchorNameFragments,
+} = require('../src/utils.js')
-  isValidIntegerString,
-  getNumberOfLines,
-  getLineNumberStringFromFragment,
-} from "../src/utils.js"
 
-test("utils", async (t) => {
+test('utils', async (t) => {
-  await t.test("convertHeadingToHTMLFragment", async () => {
+  await t.test('convertHeadingToHTMLFragment', async () => {
     assert.strictEqual(
-      convertHeadingToHTMLFragment("Valid Fragments"),
+      convertHeadingToHTMLFragment('Valid Fragments'),
-      "#valid-fragments",
+      '#valid-fragments'
     )
     assert.strictEqual(
-      convertHeadingToHTMLFragment("Valid Heading With Underscores _"),
+      convertHeadingToHTMLFragment('Valid Heading With Underscores _'),
-      "#valid-heading-with-underscores-_",
+      '#valid-heading-with-underscores-_'
     )
     assert.strictEqual(
       convertHeadingToHTMLFragment(
-        `Valid Heading With Quotes ' And Double Quotes "`,
+        `Valid Heading With Quotes ' And Double Quotes "`
       ),
-      "#valid-heading-with-quotes--and-double-quotes-",
+      '#valid-heading-with-quotes--and-double-quotes-'
     )
     assert.strictEqual(
-      convertHeadingToHTMLFragment("🚀 Valid Heading With Emoji"),
+      convertHeadingToHTMLFragment('🚀 Valid Heading With Emoji'),
-      "#-valid-heading-with-emoji",
+      '#-valid-heading-with-emoji'
     )
   })
 
-  await t.test("getMarkdownHeadings", async () => {
+  await t.test('getMarkdownHeadings', async () => {
     assert.deepStrictEqual(
-      getMarkdownHeadings("# Hello\n\n## World\n\n## Hello, world!\n"),
+      getMarkdownHeadings('# Hello\n\n## World\n\n## Hello, world!\n'),
-      ["Hello", "World", "Hello, world!"],
+      ['Hello', 'World', 'Hello, world!']
     )
   })
-
-  await t.test("getMarkdownIdOrAnchorNameFragments", async () => {
-    assert.deepStrictEqual(
-      getMarkdownIdOrAnchorNameFragments(
-        '<a name="anchorName" id="anchorId">Link</a>',
-      ),
-      ["#anchorId"],
-    )
-    assert.deepStrictEqual(
-      getMarkdownIdOrAnchorNameFragments('<a name="anchorName">Link</a>'),
-      ["#anchorName"],
-    )
-    assert.deepStrictEqual(
-      getMarkdownIdOrAnchorNameFragments("<a>Link</a>"),
-      [],
-    )
-    assert.deepStrictEqual(getMarkdownIdOrAnchorNameFragments("<a>"), [])
-    assert.deepStrictEqual(getMarkdownIdOrAnchorNameFragments("<a id=>"), [])
-  })
-
-  await t.test("isValidIntegerString", async () => {
-    assert.strictEqual(isValidIntegerString("1"), true)
-    assert.strictEqual(isValidIntegerString("45"), true)
-    assert.strictEqual(isValidIntegerString("1abc"), false)
-    assert.strictEqual(isValidIntegerString("1.0"), false)
-  })
-
-  await t.test("getNumberOfLines", async () => {
-    assert.strictEqual(getNumberOfLines(""), 1)
-    assert.strictEqual(getNumberOfLines("Hello"), 1)
-    assert.strictEqual(getNumberOfLines("Hello\nWorld"), 2)
-    assert.strictEqual(getNumberOfLines("Hello\nWorld\n"), 3)
-    assert.strictEqual(getNumberOfLines("Hello\nWorld\n\n"), 4)
-  })
-
-  await t.test("getLineNumberStringFromFragment", async () => {
-    assert.strictEqual(getLineNumberStringFromFragment("#L50"), "50")
-  })
 })

tsconfig.json

@@ -1,25 +0,0 @@
-{
-  "compilerOptions": {
-    "lib": ["ESNext"],
-    "target": "ESNext",
-    "module": "NodeNext",
-    "moduleResolution": "NodeNext",
-    "checkJs": true,
-    "allowJs": true,
-    "noEmit": true,
-    "rootDir": ".",
-    "baseUrl": ".",
-    "skipLibCheck": true,
-    "strict": true,
-    "allowUnusedLabels": false,
-    "allowUnreachableCode": false,
-    "noFallthroughCasesInSwitch": true,
-    "noImplicitAny": true,
-    "noImplicitOverride": true,
-    "noImplicitReturns": true,
-    "noUncheckedIndexedAccess": true,
-    "noUnusedLocals": true,
-    "noUnusedParameters": true,
-    "forceConsistentCasingInFileNames": true
-  }
-}