feat: anchor link checks support HTML tags like <a name="foo"></a>

[dklimpel]

Extracts all html tags with the attribute id and all a tags with the attribute name and allows them as valid section links.

Ignore:

• code blocks (```)
• single code (`)
• html comments

Fits the lint rule MD51

Alternatively, any HTML tag with an id attribute or an a tag with a name attribute can be used to define a fragment

fixes:

• anchor link checks should support <a name="foo"></a> #202
• Parse HTML in order to find anchors (like #tomato) in the same document #195

related to:

• feat: add support for unicode characters in anchor links #328

[MikeMcC399]

@dklimpel

[Item 1](#item-one)
[Item 2](#item-two)

<a id="item-one">Item 1 target</a>
<a id='item-two'>Item 2 target</a>

resulted in

$ npx markdown-link-check anchor-in-html-test.md

FILE: anchor-in-html-test.md
  [✓] #item-one
  [✖] #item-two

  2 links checked.

  ERROR: 1 dead links found!
  [✖] #item-two → Status: 404

using
markdown-link-check@3.12.2 (git+ssh://git@github.com/dklimpel/markdown-link-check.git#cb1cb610ac08ba78d9f8735402929722d7253088)

Would you expect single quotes to work as well as the double quotes?

[dklimpel]

Would you expect single quotes to work as well as the double quotes?

Single quotes were not yet in the scope.

[MikeMcC399]

@dklimpel

Single quotes were not yet in the scope.

Do you plan to add them in this PR? It may be confusing to have only double quotes working if this PR is merged as is.

[dklimpel]

I have added a new commit for supporting single quotes.

[MikeMcC399]

@dklimpel

Great work! I confirm it works!