remark-lint-rule-style

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remark-lintmono rule to warn when rule markers are inconsistent.

Contents

• What is this?
• When should I use this?
• Presets
• Install
• Use
• API

*   [`unified().use(remarkLintRuleStyle[, config])`](#unifieduseremarklintrulestyle-config)

• Recommendation
• Fix
• Examples
• Compatibility
• Contribute
• License

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 rules (thematic breaks, horizontal rules) are consistent.

Presets

This rule is included in the following presets:
| Preset | Setting | | - | - | | remark-preset-lint-consistent | 'consistent' | | remark-preset-lint-markdown-style-guide | '---' |

Install

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

npm install remark-lint-rule-style

In Deno with Skypack:

import remarkLintRuleStyle from 'https://cdn.skypack.dev/remark-lint-rule-style@3?dts'

In browsers with Skypack:

<script type="module">
  import remarkLintRuleStyle from 'https://cdn.skypack.dev/remark-lint-rule-style@3?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 remarkLintRuleStyle from 'remark-lint-rule-style'

main()

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

  console.error(reporter(file))
}

On the CLI:

remark --use remark-lint --use remark-lint-rule-style example.md

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

…
"remarkConfig": {
  "plugins": [
    …
    "remark-lint",
+    "remark-lint-rule-style",
    …
  ]
}
…

API

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

unified().use(remarkLintRuleStyle[, 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).
The following options (default: 'consistent') are accepted:

• string (example: '** * **', '___')

— thematic break to prefer

• 'consistent'

— detect the first used style and warn when further rules differ

Recommendation

Rules consist of a *, -, or _ character, which occurs at least three times with nothing else except for arbitrary spaces or tabs on a single line. Using spaces, tabs, and more than three markers seems unnecessary work to type out. Because asterisks can be used as a marker for more markdown constructs, it’s recommended to use that for rules (and lists, emphasis, strong) too. Due to this, it’s recommended to pass '***'.

Fix

remark-stringify formats rules with *** by default. There are three settings to control rules:

• rule

(default: `'*'`) — marker

• ruleRepetition

(default: `3`) — repetitions

• ruleSpaces

(default: `false`) — use spaces between markers

Examples

ok.md

When configured with '* * *'.

In

* * *

* * *

Out

No messages.

ok.md

When configured with '_______'.

In

_______

_______

Out

No messages.

not-ok.md

In

***

* * *

Out

3:1-3:6: Rules should use `***`

not-ok.md

When configured with '💩'.

Out

1:1: Incorrect preferred rule style: provide a correct markdown rule or `'consistent'`

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