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remark-lint-no-heading-indent
remark-lint
rule to warn when headings are indented.
Contents
- What is this?
- When should I use this?
- Presets
- Install
- Use
- API
- 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 headings are not indented.
Presets
This rule is not included in a preset maintained here.
Install
This package is ESM only. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:
npm install remark-lint-no-heading-indent
In Deno with Skypack:
import remarkLintNoHeadingIndent from 'https://cdn.skypack.dev/remark-lint-no-heading-indent@4?dts'
In browsers with Skypack:
<script type="module">
import remarkLintNoHeadingIndent from 'https://cdn.skypack.dev/remark-lint-no-heading-indent@4?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 remarkLintNoHeadingIndent from 'remark-lint-no-heading-indent'
main()
async function main() {
const file = await remark()
.use(remarkLint)
.use(remarkLintNoHeadingIndent)
.process(await read('example.md'))
console.error(reporter(file))
}
On the CLI:
remark --use remark-lint --use remark-lint-no-heading-indent example.md
On the CLI in a config file (here a package.json
):
…
"remarkConfig": {
"plugins": [
…
"remark-lint",
+ "remark-lint-no-heading-indent",
…
]
}
…
API
This package exports no identifiers.
The default export is remarkLintNoHeadingIndent
.
unified().use(remarkLintNoHeadingIndent[, 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
There is no specific handling of indented headings (or anything else) in markdown. While it is possible to use an indent to headings on their text:
# One
## Two
### Three
#### Four
…such style is uncommon, a bit hard to maintain, and it’s impossible to add a heading with a rank of 5 as it would form indented code instead. Hence, it’s recommended to not indent headings and to turn this rule on.
Fix
remark-stringify
formats all headings without indent.
Examples
ok.md
In
👉 Note:
·
represents a space.
#·Hello world
Foo
-----
#·Hello world·#
Bar
=====
Out
No messages.
not-ok.md
In
👉 Note:
·
represents a space.
···# Hello world
·Foo
-----
·# Hello world #
···Bar
=====
Out
1:4: Remove 3 spaces before this heading
3:2: Remove 1 space before this heading
6:2: Remove 1 space before this heading
8:4: Remove 3 spaces before this heading
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.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.