remark-lint-hard-break-spaces

remark-lint rule to warn when spaces are used for hard breaks. Either optionally spaces at all, or more spaces than the needed 2.

Contents

• What is this?
• When should I use this?
• Presets
• Install
• Use
• API
  • unified().use(remarkLintHardBreakSpaces[, options])
  • Options
• Recommendation
• Examples
• Compatibility
• Contribute
• License

What is this?

This package checks whitespace hard breaks.

When should I use this?

You can use this package to check that the spaces in hard breaks 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-hard-break-spaces

In Deno with esm.sh:

import remarkLintHardBreakSpaces from 'https://esm.sh/remark-lint-hard-break-spaces@4'

In browsers with esm.sh:

<script type="module">
  import remarkLintHardBreakSpaces from 'https://esm.sh/remark-lint-hard-break-spaces@4?bundle'
</script>

Use

On the API:

import remarkLint from 'remark-lint'
import remarkLintHardBreakSpaces from 'remark-lint-hard-break-spaces'
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(remarkLintHardBreakSpaces)
  .use(remarkStringify)
  .process(file)

console.error(reporter(file))

On the CLI:

remark --frail --use remark-lint --use remark-lint-hard-break-spaces .

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

 …
 "remarkConfig": {
   "plugins": [
     …
     "remark-lint",
+    "remark-lint-hard-break-spaces",
     …
   ]
 }
 …

API

This package exports no identifiers. It exports the TypeScript type Options. The default export is remarkLintHardBreakSpaces.

unified().use(remarkLintHardBreakSpaces[, options])

Warn when more spaces are used than needed for hard breaks.

Parameters

• options (Options, default: 'consistent') — either a preferred indent or whether to detect the first style and warn for further differences

Returns

Transform (Transformer from unified).

Options

Configuration (TypeScript type).

Fields

• allowSpaces (boolean, default: true) — allow trailing space hard breaks at all; use escape hard breaks otherwise

Recommendation

Less than two spaces do not create a hard breaks and more than two spaces have no effect. Due to this, it’s recommended to turn this rule on.

With CommonMark, it is now possible to use a backslash (\) at the end of a line to create a hard break. It is now recommended to pass allowSpaces: false.

Examples

ok.md

In

**Mercury** is the first planet from the Sun␠␠
and the smallest in the Solar System.
**Venus** is the second planet from\
the Sun.

Out

No messages.

not-ok.md

In

**Mercury** is the first planet from the Sun␠␠␠
and the smallest in the Solar System.

Out

1:45-2:1: Unexpected `3` spaces for hard break, expected `2` spaces

escape.md

When configured with { allowSpaces: false }.

In

**Mercury** is the first planet from the Sun␠␠
and the smallest in the Solar System.
**Venus** is the second planet from the\
Sun.

Out

1:45-2:1: Unexpected `2` spaces for hard break, expected escape

containers.md

In

👉 Note: this example uses GFM (remark-gfm).

[^mercury]:
    > * > * **Mercury** is the first planet from the Sun␠␠␠
    >   >   and the smallest in the Solar System.

Out

2:57-3:1: Unexpected `3` spaces for hard break, expected `2` spaces

not-ok-options.md

When configured with '🌍'.

Out

1:1: Unexpected value `🌍` for `options`, expected object

not-ok-options-field.md

When configured with { allowSpaces: '🌍' }.

Out

1:1: Unexpected value `🌍` for `options.allowSpaces`, expected `boolean`

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-hard-break-spaces@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