remark-lint rule to warn when heading content is indented
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[remark-lint][github-remark-lint] rule to warn when extra whitespace is used between hashes and
content in headings.
* What is this?
* When should I use this?
* Presets
* Install
* Use
* API
* unified().use(remarkLintNoHeadingContentIndent)
* Recommendation
* Fix
* Examples
* Compatibility
* Contribute
* License
This package checks whitespace between hashes and content.
You can use this package to check that headings are consistent.
This plugin is included in the following presets:
| Preset | Options |
| - | - |
| remark-preset-lint-recommended | |
This package is [ESM only][github-gist-esm].
In Node.js (version 16+),
install with [npm][npm-install]:
``sh`
npm install remark-lint-no-heading-content-indent
In Deno with [esm.sh][esm-sh]:
`js`
import remarkLintNoHeadingContentIndent from 'https://esm.sh/remark-lint-no-heading-content-indent@5'
In browsers with [esm.sh][esm-sh]:
`html`
On the API:
`js
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:
`sh`
remark --frail --use remark-lint --use remark-lint-no-heading-content-indent .
On the CLI in a config file (here a package.json):
`diff`
…
"remarkConfig": {
"plugins": [
…
"remark-lint",
+ "remark-lint-no-heading-content-indent",
…
]
}
…
This package exports no identifiers.
It exports no additional [TypeScript][typescript] types.
The default export is
[remarkLintNoHeadingContentIndent][api-remark-lint-no-heading-content-indent].
Warn when extra whitespace is used between hashes and content in headings.
###### Parameters
There are no options.
###### Returns
Transform ([Transformer from unified][github-unified-transformer]).
One space is required and more than one space has no effect.
Due to this, it’s recommended to turn this rule on.
[remark-stringify][github-remark-stringify] formats headings with one space.
##### ok.md
###### In
`markdown
#␠Mercury
##␠Venus␠##
␠␠##␠Earth
Setext headings are not affected:
␠Mars
=====
␠Jupiter
--------
`
###### Out
No messages.
##### not-ok.md
###### In
`markdown
#␠␠Mercury
##␠Venus␠␠##
␠␠##␠␠␠Earth
`
###### Out
`text2
1:4: Unexpected spaces between hashes and content, expected 1 space, remove 1 space2
3:11: Unexpected spaces between content and hashes, expected 1 space, remove 1 space3
5:8: Unexpected spaces between hashes and content, expected 1 space, remove 2 spaces`
##### empty-heading.md
###### In
`markdown`
#␠␠
###### Out
`text2
1:4: Unexpected spaces between hashes and content, expected 1 space, remove 1 space`
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.
See [contributing.md][github-dotfiles-contributing] in [remarkjs/.github][github-dotfiles-health] for wayssupport.md`][github-dotfiles-support] for ways to get help.
to get started.
See [
This project has a [code of conduct][github-dotfiles-coc].
By interacting with this repository, organization, or community you agree to
abide by its terms.
[MIT][file-license] © [Titus Wormer][author]
[api-remark-lint-no-heading-content-indent]: #unifieduseremarklintnoheadingcontentindent
[author]: https://wooorm.com
[badge-build-image]: https://github.com/remarkjs/remark-lint/workflows/main/badge.svg
[badge-build-url]: https://github.com/remarkjs/remark-lint/actions
[badge-chat-image]: https://img.shields.io/badge/chat-discussions-success.svg
[badge-chat-url]: https://github.com/remarkjs/remark/discussions
[badge-coverage-image]: https://img.shields.io/codecov/c/github/remarkjs/remark-lint.svg
[badge-coverage-url]: https://codecov.io/github/remarkjs/remark-lint
[badge-downloads-image]: https://img.shields.io/npm/dm/remark-lint-no-heading-content-indent.svg
[badge-downloads-url]: https://www.npmjs.com/package/remark-lint-no-heading-content-indent
[badge-funding-backers-image]: https://opencollective.com/unified/backers/badge.svg
[badge-funding-sponsors-image]: https://opencollective.com/unified/sponsors/badge.svg
[badge-funding-url]: https://opencollective.com/unified
[badge-size-image]: https://img.shields.io/bundlejs/size/remark-lint-no-heading-content-indent
[badge-size-url]: https://bundlejs.com/?q=remark-lint-no-heading-content-indent
[esm-sh]: https://esm.sh
[file-license]: https://github.com/remarkjs/remark-lint/blob/main/license
[github-dotfiles-coc]: https://github.com/remarkjs/.github/blob/main/code-of-conduct.md
[github-dotfiles-contributing]: https://github.com/remarkjs/.github/blob/main/contributing.md
[github-dotfiles-health]: https://github.com/remarkjs/.github
[github-dotfiles-support]: https://github.com/remarkjs/.github/blob/main/support.md
[github-gist-esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
[github-remark-lint]: https://github.com/remarkjs/remark-lint
[github-remark-stringify]: https://github.com/remarkjs/remark/tree/main/packages/remark-stringify
[github-unified-transformer]: https://github.com/unifiedjs/unified#transformer
[npm-install]: https://docs.npmjs.com/cli/install
[typescript]: https://www.typescriptlang.org