157 lines
3.8 KiB
Markdown
157 lines
3.8 KiB
Markdown
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# space-separated-tokens
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[![Build][build-badge]][build]
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[![Coverage][coverage-badge]][coverage]
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[![Downloads][downloads-badge]][downloads]
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[![Size][size-badge]][size]
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Parse and stringify space-separated tokens.
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## Contents
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* [What is this?](#what-is-this)
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* [When should I use this?](#when-should-i-use-this)
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* [Install](#install)
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* [Use](#use)
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* [API](#api)
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* [`parse(value)`](#parsevalue)
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* [`stringify(values)`](#stringifyvalues)
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* [Types](#types)
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* [Compatibility](#compatibility)
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* [Related](#related)
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* [Contribute](#contribute)
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* [Security](#security)
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* [License](#license)
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## What is this?
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This is a tiny package that can parse and stringify space-separated tokens, as
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used for example in the HTML `class` attribute, according to the
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[WHATWG spec][spec].
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## When should I use this?
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This package is rather niche, it’s low-level and particularly useful when
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working with [hast][].
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## Install
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This package is [ESM only][esm].
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In Node.js (version 14.14+, 16.0+), install with [npm][]:
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```sh
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npm install space-separated-tokens
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```
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In Deno with [`esm.sh`][esmsh]:
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```js
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import {parse, stringify} from 'https://esm.sh/space-separated-tokens@2'
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```
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In browsers with [`esm.sh`][esmsh]:
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```html
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<script type="module">
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import {parse, stringify} from 'https://esm.sh/space-separated-tokens@2?bundle'
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</script>
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```
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## Use
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```js
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import {parse, stringify} from 'space-separated-tokens'
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parse(' foo\tbar\nbaz ')
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//=> ['foo', 'bar', 'baz']
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stringify(['foo', 'bar', 'baz'])
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//=> 'foo bar baz'
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```
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## API
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This package exports the identifiers `parse` and `stringify`.
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There is no default export.
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### `parse(value)`
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Parse space-separated tokens (`string`) to an array of strings
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(`Array<string>`), according to the [WHATWG spec][spec].
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### `stringify(values)`
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Serialize an array of strings or numbers (`Array<string|number>`) to
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space-separated tokens (`string`).
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> 👉 **Note**: it’s not possible to specify empty or whitespace only values.
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## Types
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This package is fully typed with [TypeScript][].
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It exports no additional types.
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## Compatibility
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This package is at least compatible with all maintained versions of Node.js.
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As of now, that is Node.js 14.14+ and 16.0+.
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It also works in Deno and modern browsers.
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## Related
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* [`comma-separated-tokens`](https://github.com/wooorm/comma-separated-tokens)
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— parse/stringify comma-separated tokens
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* [`collapse-white-space`](https://github.com/wooorm/collapse-white-space)
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— replace multiple white-space characters with a single space
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* [`property-information`](https://github.com/wooorm/property-information)
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— info on HTML properties
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## Contribute
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Yes please!
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See [How to Contribute to Open Source][contribute].
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## Security
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This package is safe.
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## License
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[MIT][license] © [Titus Wormer][author]
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<!-- Definition -->
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[build-badge]: https://github.com/wooorm/space-separated-tokens/workflows/main/badge.svg
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[build]: https://github.com/wooorm/space-separated-tokens/actions
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[coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/space-separated-tokens.svg
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[coverage]: https://codecov.io/github/wooorm/space-separated-tokens
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[downloads-badge]: https://img.shields.io/npm/dm/space-separated-tokens.svg
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[downloads]: https://www.npmjs.com/package/space-separated-tokens
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[size-badge]: https://img.shields.io/bundlephobia/minzip/space-separated-tokens.svg
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[size]: https://bundlephobia.com/result?p=space-separated-tokens
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[npm]: https://docs.npmjs.com/cli/install
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[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
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[esmsh]: https://esm.sh
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[typescript]: https://www.typescriptlang.org
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[contribute]: https://opensource.guide/how-to-contribute/
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[license]: license
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[author]: https://wooorm.com
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[spec]: https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#space-separated-tokens
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[hast]: https://github.com/syntax-tree/hast
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