188 lines
5.2 KiB
Plaintext
188 lines
5.2 KiB
Plaintext
# micromark-util-normalize-identifier
|
|
|
|
[![Build][build-badge]][build]
|
|
[![Coverage][coverage-badge]][coverage]
|
|
[![Downloads][downloads-badge]][downloads]
|
|
[![Size][bundle-size-badge]][bundle-size]
|
|
[![Sponsors][sponsors-badge]][opencollective]
|
|
[![Backers][backers-badge]][opencollective]
|
|
[![Chat][chat-badge]][chat]
|
|
|
|
[micromark][] utility normalize identifiers.
|
|
|
|
## Contents
|
|
|
|
* [What is this?](#what-is-this)
|
|
* [When should I use this?](#when-should-i-use-this)
|
|
* [Install](#install)
|
|
* [Use](#use)
|
|
* [API](#api)
|
|
* [`normalizeIdentifier(value)`](#normalizeidentifiervalue)
|
|
* [Types](#types)
|
|
* [Compatibility](#compatibility)
|
|
* [Security](#security)
|
|
* [Contribute](#contribute)
|
|
* [License](#license)
|
|
|
|
## What is this?
|
|
|
|
This package exposes an algorithm to normalize identifiers found in markdown.
|
|
|
|
## When should I use this?
|
|
|
|
This package might be useful when you are making your own micromark extensions.
|
|
|
|
## Install
|
|
|
|
This package is [ESM only][esm].
|
|
In Node.js (version 16+), install with [npm][]:
|
|
|
|
```sh
|
|
npm install micromark-util-normalize-identifier
|
|
```
|
|
|
|
In Deno with [`esm.sh`][esmsh]:
|
|
|
|
```js
|
|
import {normalizeIdentifier} from 'https://esm.sh/micromark-util-normalize-identifier@1'
|
|
```
|
|
|
|
In browsers with [`esm.sh`][esmsh]:
|
|
|
|
```html
|
|
<script type="module">
|
|
import {normalizeIdentifier} from 'https://esm.sh/micromark-util-normalize-identifier@1?bundle'
|
|
</script>
|
|
```
|
|
|
|
## Use
|
|
|
|
```js
|
|
import {normalizeIdentifier} from 'micromark-util-normalize-identifier'
|
|
|
|
normalizeIdentifier(' a ') // 'A'
|
|
normalizeIdentifier('a\t\r\nb') // 'A B'
|
|
normalizeIdentifier('ТОЛПОЙ') // 'ТОЛПОЙ'
|
|
normalizeIdentifier('Толпой') // 'ТОЛПОЙ'
|
|
```
|
|
|
|
## API
|
|
|
|
This module exports the identifier
|
|
[`normalizeIdentifier`][api-normalize-identifier].
|
|
There is no default export.
|
|
|
|
### `normalizeIdentifier(value)`
|
|
|
|
Normalize an identifier (as found in references, definitions).
|
|
|
|
Collapses markdown whitespace, trim, and then lower- and uppercase.
|
|
|
|
Some characters are considered “uppercase”, such as U+03F4 (`ϴ`), but if their
|
|
lowercase counterpart (U+03B8 (`θ`)) is uppercased will result in a different
|
|
uppercase character (U+0398 (`Θ`)).
|
|
So, to get a canonical form, we perform both lower- and uppercase.
|
|
|
|
Using uppercase last makes sure keys will never interact with default
|
|
prototypal values (such as `constructor`): nothing in the prototype of `Object`
|
|
is uppercase.
|
|
|
|
###### Parameters
|
|
|
|
* `value` (`string`)
|
|
— identifier to normalize
|
|
|
|
###### Returns
|
|
|
|
Normalized identifier (`string`).
|
|
|
|
## Types
|
|
|
|
This package is fully typed with [TypeScript][].
|
|
It exports no additional types.
|
|
|
|
## 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,
|
|
`micromark-util-normalize-identifier@^2`, compatible with Node.js 16.
|
|
This package works with `micromark@^3`.
|
|
|
|
## Security
|
|
|
|
This package is safe.
|
|
See [`security.md`][securitymd] in [`micromark/.github`][health] for how to
|
|
submit a security report.
|
|
|
|
## Contribute
|
|
|
|
See [`contributing.md`][contributing] in [`micromark/.github`][health] for ways
|
|
to get started.
|
|
See [`support.md`][support] for ways to get help.
|
|
|
|
This project has a [code of conduct][coc].
|
|
By interacting with this repository, organisation, or community you agree to
|
|
abide by its terms.
|
|
|
|
## License
|
|
|
|
[MIT][license] © [Titus Wormer][author]
|
|
|
|
<!-- Definitions -->
|
|
|
|
[build-badge]: https://github.com/micromark/micromark/workflows/main/badge.svg
|
|
|
|
[build]: https://github.com/micromark/micromark/actions
|
|
|
|
[coverage-badge]: https://img.shields.io/codecov/c/github/micromark/micromark.svg
|
|
|
|
[coverage]: https://codecov.io/github/micromark/micromark
|
|
|
|
[downloads-badge]: https://img.shields.io/npm/dm/micromark-util-normalize-identifier.svg
|
|
|
|
[downloads]: https://www.npmjs.com/package/micromark-util-normalize-identifier
|
|
|
|
[bundle-size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=micromark-util-normalize-identifier
|
|
|
|
[bundle-size]: https://bundlejs.com/?q=micromark-util-normalize-identifier
|
|
|
|
[sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg
|
|
|
|
[backers-badge]: https://opencollective.com/unified/backers/badge.svg
|
|
|
|
[opencollective]: https://opencollective.com/unified
|
|
|
|
[npm]: https://docs.npmjs.com/cli/install
|
|
|
|
[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
|
|
|
|
[esmsh]: https://esm.sh
|
|
|
|
[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg
|
|
|
|
[chat]: https://github.com/micromark/micromark/discussions
|
|
|
|
[license]: https://github.com/micromark/micromark/blob/main/license
|
|
|
|
[author]: https://wooorm.com
|
|
|
|
[health]: https://github.com/micromark/.github
|
|
|
|
[securitymd]: https://github.com/micromark/.github/blob/main/security.md
|
|
|
|
[contributing]: https://github.com/micromark/.github/blob/main/contributing.md
|
|
|
|
[support]: https://github.com/micromark/.github/blob/main/support.md
|
|
|
|
[coc]: https://github.com/micromark/.github/blob/main/code-of-conduct.md
|
|
|
|
[typescript]: https://www.typescriptlang.org
|
|
|
|
[micromark]: https://github.com/micromark/micromark
|
|
|
|
[api-normalize-identifier]: #normalizeidentifiervalue
|