remark-lint-final-newline

remark-lint rule to warn when a newline at the end of a file is missing

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remark-lint-final-newline
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remark-lintmono rule to warn when files don’t end in a newline.

Contents

*   [`unified().use(remarkLintFinalNewline[, config])`](#unifieduseremarklintfinalnewline-config)

What is this?

This package is a unified (remark) plugin, specifically a remark-lint rule. Lint rules check markdown code style.

When should I use this?

You can use this package to check that fenced code markers are consistent.

Presets

This rule is included in the following presets:
| Preset | Setting | | - | - | | remark-preset-lint-recommended | |

Install

This package is ESM onlyesm. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:
npm install remark-lint-final-newline

In Deno with Skypack:
import remarkLintFinalNewline from 'https://cdn.skypack.dev/remark-lint-final-newline@2?dts'

In browsers with Skypack:
<script type="module">
  import remarkLintFinalNewline from 'https://cdn.skypack.dev/remark-lint-final-newline@2?min'
</script>

Use

On the API:
import {read} from 'to-vfile'
import {reporter} from 'vfile-reporter'
import {remark} from 'remark'
import remarkLint from 'remark-lint'
import remarkLintFinalNewline from 'remark-lint-final-newline'

main()

async function main() {
  const file = await remark()
    .use(remarkLint)
    .use(remarkLintFinalNewline)
    .process(await read('example.md'))

  console.error(reporter(file))
}

On the CLI:
remark --use remark-lint --use remark-lint-final-newline example.md

On the CLI in a config file (here a package.json):
…
"remarkConfig": {
  "plugins": [
    …
    "remark-lint",
+    "remark-lint-final-newline",
    …
  ]
}
…

API

This package exports no identifiers. The default export is remarkLintFinalNewline.

unified().use(remarkLintFinalNewline[, config])

This rule supports standard configuration that all remark lint rules accept (such as false to turn it off or [1, options] to configure it).
There are no options.

Recommendation

Turn this rule on. See StackExchange for more info.

Fix

remark-stringify always adds final line endings.

Example

ok.md
In
👉 Note: represents a line feed (\n).

Alpha␊
Out
No messages.
not-ok.md
In
👉 Note: represents the end of the file.

Bravo␀
Out
1:1: Missing newline character at end of file

Compatibility

Projects maintained by the unified collective are compatible with all maintained versions of Node.js. As of now, that is Node.js 12.20+, 14.14+, and 16.0+. Our projects sometimes work with older versions, but this is not guaranteed.

Contribute

See contributing.mdcontributing in remarkjs/.githubhealth for ways to get started. See support.mdsupport for ways to get help.
This project has a code of conductcoc. By interacting with this repository, organization, or community you agree to abide by its terms.

License

MITlicense © Titus Wormerauthor