From 33fc37964653585948bb021ed0cccf945972498f Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Tue, 1 Oct 2024 14:36:37 +0200
Subject: [PATCH] Deprecate

---
 .editorconfig                     |   9 -
 .github/workflows/bb.yml          |  13 --
 .github/workflows/main.yml        |  21 ---
 .gitignore                        |   6 -
 .npmrc                            |   1 -
 .prettierignore                   |   3 -
 .remarkignore                     |   1 -
 index.js                          | 274 ------------------------------
 license                           |  24 ---
 package.json                      |  77 +--------
 readme.md                         |  18 +-
 test/fixtures/input.md            |   1 -
 test/fixtures/output.after.html   |   2 -
 test/fixtures/output.append.html  |   1 -
 test/fixtures/output.before.html  |   2 -
 test/fixtures/output.html         |   1 -
 test/fixtures/output.prepend.html |   1 -
 test/fixtures/output.wrap.html    |   1 -
 test/index.js                     | 171 -------------------
 tsconfig.json                     |  16 --
 20 files changed, 5 insertions(+), 638 deletions(-)
 delete mode 100644 .editorconfig
 delete mode 100644 .github/workflows/bb.yml
 delete mode 100644 .github/workflows/main.yml
 delete mode 100644 .gitignore
 delete mode 100644 .npmrc
 delete mode 100644 .prettierignore
 delete mode 100644 .remarkignore
 delete mode 100644 index.js
 delete mode 100644 license
 delete mode 100644 test/fixtures/input.md
 delete mode 100644 test/fixtures/output.after.html
 delete mode 100644 test/fixtures/output.append.html
 delete mode 100644 test/fixtures/output.before.html
 delete mode 100644 test/fixtures/output.html
 delete mode 100644 test/fixtures/output.prepend.html
 delete mode 100644 test/fixtures/output.wrap.html
 delete mode 100644 test/index.js
 delete mode 100644 tsconfig.json

diff --git a/.editorconfig b/.editorconfig
deleted file mode 100644
index c6c8b36..0000000
--- a/.editorconfig
+++ /dev/null
@@ -1,9 +0,0 @@
-root = true
-
-[*]
-indent_style = space
-indent_size = 2
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
diff --git a/.github/workflows/bb.yml b/.github/workflows/bb.yml
deleted file mode 100644
index 0198fc3..0000000
--- a/.github/workflows/bb.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: bb
-on:
-  issues:
-    types: [opened, reopened, edited, closed, labeled, unlabeled]
-  pull_request_target:
-    types: [opened, reopened, edited, closed, labeled, unlabeled]
-jobs:
-  main:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: unifiedjs/beep-boop-beta@main
-        with:
-          repo-token: ${{secrets.GITHUB_TOKEN}}
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index fe284ad..0000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: main
-on:
-  - pull_request
-  - push
-jobs:
-  main:
-    name: ${{matrix.node}}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: dcodeIO/setup-node-nvm@master
-        with:
-          node-version: ${{matrix.node}}
-      - run: npm install
-      - run: npm test
-      - uses: codecov/codecov-action@v1
-    strategy:
-      matrix:
-        node:
-          - lts/erbium
-          - node
diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 53a29e3..0000000
--- a/.gitignore
+++ /dev/null
@@ -1,6 +0,0 @@
-coverage/
-node_modules/
-.DS_Store
-*.d.ts
-*.log
-yarn.lock
diff --git a/.npmrc b/.npmrc
deleted file mode 100644
index 43c97e7..0000000
--- a/.npmrc
+++ /dev/null
@@ -1 +0,0 @@
-package-lock=false
diff --git a/.prettierignore b/.prettierignore
deleted file mode 100644
index 619aa6b..0000000
--- a/.prettierignore
+++ /dev/null
@@ -1,3 +0,0 @@
-coverage/
-*.html
-*.md
diff --git a/.remarkignore b/.remarkignore
deleted file mode 100644
index c912533..0000000
--- a/.remarkignore
+++ /dev/null
@@ -1 +0,0 @@
-__tests__
diff --git a/index.js b/index.js
deleted file mode 100644
index b1ddd90..0000000
--- a/index.js
+++ /dev/null
@@ -1,274 +0,0 @@
-/**
- * @typedef {import('mdast').Root} Root
- * @typedef {import('mdast').Heading} Heading
- * @typedef {import('mdast').Link} Link
- * @typedef {import('mdast').Blockquote} Blockquote
- * @typedef {import('mdast').BlockContent} BlockContent
- * @typedef {import('mdast').StaticPhrasingContent} StaticPhrasingContent
- * @typedef {import('mdast').PhrasingContent} PhrasingContent
- * @typedef {import('hast').Element} Element
- * @typedef {Element['children'][number]} ElementChild
- * @typedef {import('hast').Properties} Properties
- *
- * @callback Build
- * @param {Heading} node
- * @returns {ElementChild|ElementChild[]}
- *
- * @callback BuildGroup
- * @param {Heading} node
- * @returns {Element}
- *
- * @typedef BaseOptions
- * @property {Properties} [linkProperties]
- *   Extra properties to set on the link when injecting.
- *   Defaults to `{ariaHidden: true, tabIndex: -1}` when `'prepend'` or
- *   `'append'`.
- * @property {ElementChild|ElementChild[]|Build} [content={type: 'element', tagName: 'span', properties: {className: ['icon', 'icon-link']}, children: []}]
- *   Nodes (hast) to insert in the link.
- * @property {Element|BuildGroup} [group]
- *   Node (hast) to wrap the heading and link with, if `behavior` is `'before'` or
- *   `'after'`.
- *   There is no default.
- *
- * @typedef BeforeFields
- * @property {'before'} behavior
- *   Insert link before the heading.
- *
- * @typedef AfterFields
- * @property {'after'} behavior
- *   Insert link after the heading.
- *
- * @typedef WrapFields
- * @property {'wrap'} behavior
- *   Wrap the whole heading text with the link.
- *
- * @typedef PrependFields
- * @property {'prepend'} behavior
- *   Inject link before the heading text.
- *
- * @typedef AppendFields
- * @property {'append'} behavior
- *   Inject link after the heading text.
- *
- * @typedef {BaseOptions & BeforeFields} BeforeOptions
- * @typedef {BaseOptions & AfterFields} AfterOptions
- * @typedef {Pick<BaseOptions, 'linkProperties'> & WrapFields} WrapOptions
- * @typedef {Pick<BaseOptions, 'linkProperties' | 'content'> & PrependFields} PrependOptions
- * @typedef {Pick<BaseOptions, 'linkProperties' | 'content'> & AppendFields} AppendOptions
- *
- * @typedef {BaseOptions|BeforeOptions|AfterOptions|WrapOptions|PrependOptions|AppendOptions} Options
- */
-
-import {visit, SKIP} from 'unist-util-visit'
-import extend from 'extend'
-
-/** @type {Element} */
-const contentDefaults = {
-  type: 'element',
-  tagName: 'span',
-  properties: {className: ['icon', 'icon-link']},
-  children: []
-}
-
-/**
- * Plugin to automatically add links to headings (h1-h6).
- *
- * @type {import('unified').Plugin<[Options?]|void[], Root>}
- */
-export default function rehypeAutolinkHeadings(options = {}) {
-  let props = options.linkProperties
-  const behavior = ('behavior' in options && options.behavior) || 'prepend'
-  const content = ('content' in options && options.content) || contentDefaults
-  const group = 'group' in options ? options.group : undefined
-  /** @type {import('unist-util-visit').Visitor<Heading>} */
-  let method
-
-  if (behavior === 'wrap') {
-    method = wrap
-  } else if (behavior === 'before' || behavior === 'after') {
-    method = around
-  } else {
-    if (!props) {
-      props = {ariaHidden: 'true', tabIndex: -1}
-    }
-
-    method = inject
-  }
-
-  return (tree) => {
-    visit(tree, 'heading', method)
-  }
-
-  /** @type {import('unist-util-visit').Visitor<Heading>} */
-  function inject(node) {
-    const url = getUrl(node)
-
-    if (url) {
-      const link = create(url)
-
-      link.data = Object.assign({}, link.data, {
-        hProperties: extend(true, {}, props),
-        hChildren: toChildren(content, node)
-      })
-
-      node.children[behavior === 'prepend' ? 'unshift' : 'push'](link)
-    }
-  }
-
-  /** @type {import('unist-util-visit').Visitor<Heading>} */
-  function around(node, index, parent) {
-    const url = getUrl(node)
-
-    if (url && typeof index === 'number' && parent) {
-      const link = create(url)
-      const grouping = group ? toGrouping(group, node) : undefined
-
-      link.data = Object.assign({}, link.data, {
-        hProperties: extend(true, {}, props),
-        hChildren: toChildren(content, node)
-      })
-
-      /** @type {BlockContent[]} */
-      // @ts-expect-error: links are not allowed, but it works fine.
-      let nodes = behavior === 'before' ? [link, node] : [node, link]
-
-      if (grouping) {
-        grouping.children = nodes
-        nodes = [grouping]
-      }
-
-      parent.children.splice(index, 1, ...nodes)
-
-      return [SKIP, index + nodes.length]
-    }
-  }
-
-  /** @type {import('unist-util-visit').Visitor<Heading>} */
-  function wrap(node) {
-    const url = getUrl(node)
-
-    if (url) {
-      const link = create(url, toStaticPhrasingContent(node.children))
-      link.data = {hProperties: extend(true, {}, props)}
-      node.children = [link]
-    }
-  }
-
-  /**
-   * @param {ElementChild|ElementChild[]|Build} value
-   * @param {Heading} node
-   * @returns {ElementChild|ElementChild[]}
-   */
-  function toNode(value, node) {
-    return typeof value === 'function' ? value(node) : value
-  }
-
-  /**
-   * @param {ElementChild|ElementChild[]|Build} value
-   * @param {Heading} node
-   * @returns {ElementChild[]}
-   */
-  function toChildren(value, node) {
-    const result = toNode(value, node)
-    const children = Array.isArray(result) ? result : [result]
-    return typeof value === 'function' ? children : extend(true, [], children)
-  }
-
-  /**
-   * @param {ElementChild|ElementChild[]|Build} value
-   * @param {Heading} node
-   * @returns {Blockquote}
-   */
-  function toGrouping(value, node) {
-    const grouping = toNode(value, node)
-
-    if (Array.isArray(grouping) || grouping.type !== 'element') {
-      throw new Error('Expected element as grouping')
-    }
-
-    const hName = grouping.tagName
-    const hProperties = grouping.properties
-
-    return {
-      // @ts-expect-error: custom node.
-      type: 'heading-group',
-      data: {
-        hName,
-        hProperties:
-          typeof value === 'function'
-            ? extend(true, {}, hProperties)
-            : hProperties
-      },
-      children: []
-    }
-  }
-
-  /**
-   * @param {string} url
-   * @param {StaticPhrasingContent[]} [children]
-   * @returns {Link}
-   */
-  function create(url, children) {
-    return {
-      type: 'link',
-      url,
-      title: null,
-      children: children || []
-    }
-  }
-
-  /**
-   * @param {Heading} node
-   * @returns {string|undefined}
-   */
-  function getUrl(node) {
-    const data = node.data || {}
-    const props = /** @type {Properties} */ (data.hProperties)
-    const id = props && props.id
-    return id ? '#' + id : undefined
-  }
-
-  /**
-   * @param {Array.<PhrasingContent>} [nodes]
-   * @returns {Array.<StaticPhrasingContent>}
-   */
-  function toStaticPhrasingContent(nodes) {
-    /** @type {Array.<StaticPhrasingContent>} */
-    let result = []
-    let index = -1
-
-    if (nodes) {
-      while (++index < nodes.length) {
-        result = result.concat(toStaticPhrasingContentOne(nodes[index]))
-      }
-    }
-
-    return result
-  }
-
-  /**
-   * @param {PhrasingContent} node
-   * @returns {StaticPhrasingContent|Array.<StaticPhrasingContent>}
-   */
-  function toStaticPhrasingContentOne(node) {
-    if (
-      node.type === 'link' ||
-      node.type === 'linkReference' ||
-      node.type === 'footnote' ||
-      node.type === 'footnoteReference'
-    ) {
-      // @ts-expect-error Looks like a parent.
-      return toStaticPhrasingContent(node.children)
-    }
-
-    if ('children' in node) {
-      const {children, position, ...copy} = node
-      return Object.assign(extend(true, {}, copy), {
-        children: toStaticPhrasingContent(node.children)
-      })
-    }
-
-    const {position, ...copy} = node
-    return extend(true, {}, copy)
-  }
-}
diff --git a/license b/license
deleted file mode 100644
index 51c6289..0000000
--- a/license
+++ /dev/null
@@ -1,24 +0,0 @@
-(The MIT License)
-
-Copyright (c) 2015 Ben Briggs <beneb.info@gmail.com> (http://beneb.info)
-
-Permission is hereby granted, free of charge, to any person
-obtaining a copy of this software and associated documentation
-files (the "Software"), to deal in the Software without
-restriction, including without limitation the rights to use,
-copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following
-conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
diff --git a/package.json b/package.json
index eed9de4..07f4d43 100644
--- a/package.json
+++ b/package.json
@@ -1,79 +1,6 @@
 {
+  "bugs": "https://github.com/remarkjs/remark-autolink-headings/issues",
   "name": "remark-autolink-headings",
-  "version": "7.0.1",
-  "description": "Legacy remark plugin to automatically add links to headings — please use `rehype-autolink-headings` instead",
-  "license": "MIT",
-  "keywords": [],
   "repository": "remarkjs/remark-autolink-headings",
-  "bugs": "https://github.com/remarkjs/remark-autolink-headings/issues",
-  "funding": {
-    "type": "opencollective",
-    "url": "https://opencollective.com/unified"
-  },
-  "author": "Ben Briggs <beneb.info@gmail.com> (http://beneb.info)",
-  "contributors": [
-    "Ben Briggs <beneb.info@gmail.com> (http://beneb.info)",
-    "Titus Wormer <tituswormer@gmail.com> (https://wooorm.com)"
-  ],
-  "sideEffects": false,
-  "type": "module",
-  "main": "index.js",
-  "types": "index.d.ts",
-  "files": [
-    "index.d.ts",
-    "index.js"
-  ],
-  "dependencies": {
-    "@types/hast": "^2.0.0",
-    "@types/mdast": "^3.0.0",
-    "extend": "^3.0.0",
-    "unified": "^10.0.0",
-    "unist-util-visit": "^4.0.0"
-  },
-  "devDependencies": {
-    "@types/extend": "^3.0.0",
-    "@types/tape": "^4.0.0",
-    "c8": "^7.0.0",
-    "hastscript": "^7.0.0",
-    "prettier": "^2.0.0",
-    "remark": "^14.0.0",
-    "remark-cli": "^10.0.0",
-    "remark-html": "^14.0.0",
-    "remark-preset-wooorm": "^9.0.0",
-    "remark-slug": "^7.0.0",
-    "rimraf": "^3.0.0",
-    "tape": "^5.0.0",
-    "type-coverage": "^2.0.0",
-    "typescript": "^4.0.0",
-    "xo": "^0.44.0"
-  },
-  "scripts": {
-    "build": "rimraf \"test/**/*.d.ts\" \"*.d.ts\" && tsc && type-coverage",
-    "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",
-    "test-api": "node --conditions development test/index.js",
-    "test-coverage": "c8 --check-coverage --branches 100 --functions 100 --lines 100 --statements 100 --reporter lcov npm run test-api",
-    "test": "npm run build && npm run format && npm run test-coverage"
-  },
-  "prettier": {
-    "tabWidth": 2,
-    "useTabs": false,
-    "singleQuote": true,
-    "bracketSpacing": false,
-    "semi": false,
-    "trailingComma": "none"
-  },
-  "xo": {
-    "prettier": true
-  },
-  "remarkConfig": {
-    "plugins": [
-      "preset-wooorm"
-    ]
-  },
-  "typeCoverage": {
-    "atLeast": 100,
-    "detail": true,
-    "strict": true,
-    "ignoreCatch": true
-  }
+  "version": "8.0.0"
 }
diff --git a/readme.md b/readme.md
index 892823c..fd43d00 100644
--- a/readme.md
+++ b/readme.md
@@ -1,24 +1,12 @@
 # remark-autolink-headings
 
-**Stability: Legacy**.
-This package is no longer recommended for use.
-It’s still covered by semantic-versioning guarantees and not yet deprecated,
-but use of this package should be avoided.
+Deprecated: this package is no longer maintained.
 Please use `remark-rehype` to move from remark (markdown) to rehype (HTML)
 and then replace `remark-autolink-headings` with
 [`rehype-autolink-headings`][rehype-autolink-headings].
 
-Legacy [documentation for this package](https://github.com/remarkjs/remark-autolink-headings/tree/91254a60bfe03163cb49f08ec20ca5d34f677b7c)
-is still available in Git.
+[Git][] is still intact and previous versions can still be used without warnings.
 
-## License
-
-[MIT][license] © [Ben Briggs][author]
-
-<!-- Definitions -->
-
-[license]: license
-
-[author]: http://beneb.info
+[git]: https://github.com/remarkjs/remark-autolink-headings/tree/c7dfc09
 
 [rehype-autolink-headings]: https://github.com/rehypejs/rehype-autolink-headings
diff --git a/test/fixtures/input.md b/test/fixtures/input.md
deleted file mode 100644
index 2a19b74..0000000
--- a/test/fixtures/input.md
+++ /dev/null
@@ -1 +0,0 @@
-# Hello, world!
diff --git a/test/fixtures/output.after.html b/test/fixtures/output.after.html
deleted file mode 100644
index cdd3c10..0000000
--- a/test/fixtures/output.after.html
+++ /dev/null
@@ -1,2 +0,0 @@
-<h1 id="hello-world">Hello, world!</h1>
-<a href="#hello-world"><span class="icon icon-link"></span></a>
diff --git a/test/fixtures/output.append.html b/test/fixtures/output.append.html
deleted file mode 100644
index 5e205ba..0000000
--- a/test/fixtures/output.append.html
+++ /dev/null
@@ -1 +0,0 @@
-<h1 id="hello-world">Hello, world!<a href="#hello-world" aria-hidden="true" tabindex="-1"><span class="icon icon-link"></span></a></h1>
diff --git a/test/fixtures/output.before.html b/test/fixtures/output.before.html
deleted file mode 100644
index a5bed6e..0000000
--- a/test/fixtures/output.before.html
+++ /dev/null
@@ -1,2 +0,0 @@
-<a href="#hello-world"><span class="icon icon-link"></span></a>
-<h1 id="hello-world">Hello, world!</h1>
diff --git a/test/fixtures/output.html b/test/fixtures/output.html
deleted file mode 100644
index 9f735a6..0000000
--- a/test/fixtures/output.html
+++ /dev/null
@@ -1 +0,0 @@
-<h1>Hello, world!</h1>
diff --git a/test/fixtures/output.prepend.html b/test/fixtures/output.prepend.html
deleted file mode 100644
index f24ad27..0000000
--- a/test/fixtures/output.prepend.html
+++ /dev/null
@@ -1 +0,0 @@
-<h1 id="hello-world"><a href="#hello-world" aria-hidden="true" tabindex="-1"><span class="icon icon-link"></span></a>Hello, world!</h1>
diff --git a/test/fixtures/output.wrap.html b/test/fixtures/output.wrap.html
deleted file mode 100644
index 885ce43..0000000
--- a/test/fixtures/output.wrap.html
+++ /dev/null
@@ -1 +0,0 @@
-<h1 id="hello-world"><a href="#hello-world">Hello, world!</a></h1>
diff --git a/test/index.js b/test/index.js
deleted file mode 100644
index c4549bd..0000000
--- a/test/index.js
+++ /dev/null
@@ -1,171 +0,0 @@
-import assert from 'node:assert'
-import fs from 'node:fs'
-import path from 'node:path'
-import test from 'tape'
-import {remark} from 'remark'
-import remarkSlug from 'remark-slug'
-import remarkHtml from 'remark-html'
-import remarkAutolinkHeadings from '../index.js'
-
-/**
- * @param {string} name
- */
-const base = function (name) {
-  return fs.readFileSync(path.join('test', 'fixtures', name), 'utf-8')
-}
-
-/** @type {['append', 'prepend', 'after', 'before', 'wrap']} */
-const behaviors = ['append', 'prepend', 'after', 'before', 'wrap']
-
-test('remarkAutolinkHeadings', (t) => {
-  let index = -1
-  while (++index < behaviors.length) {
-    const b = behaviors[index]
-    t.is(
-      remark()
-        .use(remarkSlug)
-        .use(remarkHtml)
-        .use(remarkAutolinkHeadings, {behavior: b})
-        .processSync(base('input.md'))
-        .toString(),
-      base('output.' + b + '.html'),
-      'should autolink headings (' + b + ')'
-    )
-  }
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkHtml)
-      .use(remarkAutolinkHeadings, {content: {type: 'text', value: '#'}})
-      .processSync('# method')
-      .toString(),
-    '<h1 id="method"><a href="#method" aria-hidden="true" tabindex="-1">#</a>method</h1>\n',
-    'should accept custom content'
-  )
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkHtml)
-      .use(remarkAutolinkHeadings, {content: [{type: 'text', value: '#'}]})
-      .processSync('# method')
-      .toString(),
-    '<h1 id="method"><a href="#method" aria-hidden="true" tabindex="-1">#</a>method</h1>\n',
-    'should accept custom content as an array'
-  )
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkHtml)
-      .use(remarkAutolinkHeadings, {
-        content(node) {
-          const head = node.children[0]
-          assert(head.type === 'text')
-          return {
-            type: 'text',
-            value: 'Read the “' + head.value + '” section'
-          }
-        },
-        linkProperties: {}
-      })
-      .processSync('# method')
-      .toString(),
-    '<h1 id="method"><a href="#method">Read the “method” section</a>method</h1>\n',
-    'should accept custom content as a function'
-  )
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkHtml)
-      .use(remarkAutolinkHeadings, {linkProperties: {hidden: true}})
-      .processSync('# method')
-      .toString(),
-    '<h1 id="method"><a href="#method" hidden><span class="icon icon-link"></span></a>method</h1>\n',
-    'should accept link properties'
-  )
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkHtml)
-      .use(remarkAutolinkHeadings, {
-        group: {
-          type: 'element',
-          tagName: 'div',
-          properties: {className: ['heading-group']},
-          children: []
-        },
-        behavior: 'before'
-      })
-      .processSync('# method')
-      .toString(),
-    '<div class="heading-group"><a href="#method"><span class="icon icon-link"></span></a><h1 id="method">method</h1></div>\n',
-    'should accept a custom group'
-  )
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkHtml)
-      .use(remarkAutolinkHeadings, {
-        group(node) {
-          return {
-            type: 'element',
-            tagName: 'div',
-            properties: {className: ['heading-' + node.depth + '-group']},
-            children: []
-          }
-        },
-        behavior: 'after'
-      })
-      .processSync('# method')
-      .toString(),
-    '<div class="heading-1-group"><h1 id="method">method</h1><a href="#method"><span class="icon icon-link"></span></a></div>\n',
-    'should accept a custom group as a function'
-  )
-
-  t.is(
-    remark()
-      .use(remarkAutolinkHeadings)
-      .use(remarkHtml)
-      .processSync(base('input.md'))
-      .toString(),
-    base('output.html'),
-    'should do nothing if slugs are not used'
-  )
-
-  t.throws(
-    () => {
-      remark()
-        .use(remarkSlug)
-        .use(remarkHtml)
-        // @ts-expect-error: invalid group.
-        .use(remarkAutolinkHeadings, {
-          group() {
-            return {type: 'text', value: 'x'}
-          },
-          behavior: 'after'
-        })
-        .processSync('# method')
-        .toString()
-    },
-    /Expected element as grouping/,
-    'should throw when `group` is not an element'
-  )
-
-  t.is(
-    remark()
-      .use(remarkSlug)
-      .use(remarkAutolinkHeadings, {behavior: 'wrap'})
-      .use(remarkHtml)
-      .processSync('# [Hello](#), **world**!')
-      .toString(),
-    '<h1 id="hello-world"><a href="#hello-world">Hello, <strong>world</strong>!</a></h1>\n',
-    'should unravel interactive content when wrapping'
-  )
-
-  t.end()
-})
diff --git a/tsconfig.json b/tsconfig.json
deleted file mode 100644
index a93b9f9..0000000
--- a/tsconfig.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "include": ["test/**/*.js", "*.js"],
-  "compilerOptions": {
-    "target": "ES2020",
-    "lib": ["ES2020"],
-    "module": "ES2020",
-    "moduleResolution": "node",
-    "allowJs": true,
-    "checkJs": true,
-    "declaration": true,
-    "emitDeclarationOnly": true,
-    "allowSyntheticDefaultImports": true,
-    "skipLibCheck": true,
-    "strict": true
-  }
-}