remark-lint-no-shortcut-reference-image

remark-lint rule to warn when shortcut reference images are used.

Contents

• What is this?
• When should I use this?
• Presets
• Install
• Use
• API
  • unified().use(remarkLintNoShortcutReferenceImage)
• Recommendation
• Examples
• Compatibility
• Contribute
• License

What is this?

This package checks that collapsed or full reference images are used.

When should I use this?

You can use this package to check that references are consistent.

Presets

This plugin is included in the following presets:

Preset	Options
remark-preset-lint-markdown-style-guide
remark-preset-lint-recommended

Install

This package is ESM only. In Node.js (version 16+), install with npm:

npm install remark-lint-no-shortcut-reference-image

In Deno with esm.sh:

import remarkLintNoShortcutReferenceImage from 'https://esm.sh/remark-lint-no-shortcut-reference-image@4'

In browsers with esm.sh:

<script type="module">
  import remarkLintNoShortcutReferenceImage from 'https://esm.sh/remark-lint-no-shortcut-reference-image@4?bundle'
</script>

Use

On the API:

import remarkLint from 'remark-lint'
import remarkLintNoShortcutReferenceImage from 'remark-lint-no-shortcut-reference-image'
import remarkParse from 'remark-parse'
import remarkStringify from 'remark-stringify'
import {read} from 'to-vfile'
import {unified} from 'unified'
import {reporter} from 'vfile-reporter'

const file = await read('example.md')

await unified()
  .use(remarkParse)
  .use(remarkLint)
  .use(remarkLintNoShortcutReferenceImage)
  .use(remarkStringify)
  .process(file)

console.error(reporter(file))

On the CLI:

remark --frail --use remark-lint --use remark-lint-no-shortcut-reference-image .

On the CLI in a config file (here a package.json):

 …
 "remarkConfig": {
   "plugins": [
     …
     "remark-lint",
+    "remark-lint-no-shortcut-reference-image",
     …
   ]
 }
 …

API

This package exports no identifiers. It exports no additional TypeScript types. The default export is remarkLintNoShortcutReferenceImage.

unified().use(remarkLintNoShortcutReferenceImage)

Warn when shortcut reference images are used.

Parameters

There are no options.

Returns

Transform (Transformer from unified).

Recommendation

Shortcut references use an implicit style that looks a lot like something that could occur as plain text instead of syntax. In some cases, plain text is intended instead of an image. So it’s recommended to use collapsed or full references instead.

Examples

ok.md

In

![Mercury][]

[mercury]: /mercury.png

Out

No messages.

not-ok.md

In

![Mercury]

[mercury]: /mercury.png

Out

1:1-1:11: Unexpected shortcut reference image (`![text]`), expected collapsed reference (`![text][]`)

Compatibility

Projects maintained by the unified collective are compatible with maintained versions of Node.js.

When we cut a new major release, we drop support for unmaintained versions of Node. This means we try to keep the current release line, remark-lint-no-shortcut-reference-image@4, compatible with Node.js 16.

Contribute

See contributing.md in remarkjs/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.

License

MIT © Titus Wormer