remark-lint-no-heading-content-indent

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remark-lintgithub-remark-lint rule to warn when extra whitespace is used between hashes and content in headings.

Contents

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

unified().use(remarkLintNoHeadingContentIndent)

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

What is this?

This package checks whitespace between hashes and content.

When should I use this?

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

Presets

This plugin is included in the following presets:
| Preset | Options | | - | - | | remark-preset-lint-recommended | |

Install

This package is ESM onlygithub-gist-esm. In Node.js (version 16+), install with npmnpm-install:

npm install remark-lint-no-heading-content-indent

In Deno with esm.shesm-sh:

import remarkLintNoHeadingContentIndent from 'https://esm.sh/remark-lint-no-heading-content-indent@5'

In browsers with esm.shesm-sh:

<script type="module">
  import remarkLintNoHeadingContentIndent from 'https://esm.sh/remark-lint-no-heading-content-indent@5?bundle'
</script>

Use

On the API:

import remarkLint from 'remark-lint'
import remarkLintNoHeadingContentIndent from 'remark-lint-no-heading-content-indent'
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(remarkLintNoHeadingContentIndent)
  .use(remarkStringify)
  .process(file)

console.error(reporter(file))

On the CLI:

remark --frail --use remark-lint --use remark-lint-no-heading-content-indent .

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

…
"remarkConfig": {
  "plugins": [
    …
    "remark-lint",
+    "remark-lint-no-heading-content-indent",
    …
  ]
}
…

API

This package exports no identifiers. It exports no additional TypeScripttypescript types. The default export is remarkLintNoHeadingContentIndentapi-remark-lint-no-heading-content-indent.

unified().use(remarkLintNoHeadingContentIndent)

Warn when extra whitespace is used between hashes and content in headings.

Parameters

There are no options.

Returns

Transform (Transformer from unifiedgithub-unified-transformer).

Recommendation

One space is required and more than one space has no effect. Due to this, it’s recommended to turn this rule on.

Fix

remark-stringifygithub-remark-stringify formats headings with one space.

Examples

ok.md

In

#␠Mercury

##␠Venus␠##

␠␠##␠Earth

Setext headings are not affected:

␠Mars
=====

␠Jupiter
--------

Out

No messages.

not-ok.md

In

#␠␠Mercury

##␠Venus␠␠##

␠␠##␠␠␠Earth

Out

1:4: Unexpected `2` spaces between hashes and content, expected `1` space, remove `1` space
3:11: Unexpected `2` spaces between content and hashes, expected `1` space, remove `1` space
5:8: Unexpected `3` spaces between hashes and content, expected `1` space, remove `2` spaces

empty-heading.md

In

#␠␠

Out

1:4: Unexpected `2` spaces between hashes and content, expected `1` space, remove `1` space

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-heading-content-indent@5, compatible with Node.js 16.

Contribute

See contributing.mdgithub-dotfiles-contributing in remarkjs/.githubgithub-dotfiles-health for ways to get started. See support.mdgithub-dotfiles-support for ways to get help.
This project has a code of conductgithub-dotfiles-coc. By interacting with this repository, organization, or community you agree to abide by its terms.

License

MITfile-license © Titus Wormerauthor