157 lines
4.2 KiB
Markdown
157 lines
4.2 KiB
Markdown
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# character-reference-invalid
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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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Map of invalid numeric character references to their replacements, according to
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HTML.
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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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* [`characterReferenceInvalid`](#characterreferenceinvalid)
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* [Source](#source)
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* [Types](#types)
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* [Compatibility](#compatibility)
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* [Security](#security)
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* [Related](#related)
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* [Contribute](#contribute)
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* [License](#license)
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## What is this?
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This is a map from the [HTML spec][source] of C1 ASCII/Unicode control
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characters (which are disallowed by HTML) to the characters those code points
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would have in Windows 1252.
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For example, U+0080 (Padding Character) maps to `€`, because that’s used for
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0x80 in Windows 1252.
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## When should I use this?
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Probably never, unless you’re dealing with parsing HTML or similar XML-like
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things, or in a place where Unicode is not the primary encoding (it is in most
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places).
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## Install
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This package is [ESM only][esm].
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In Node.js (version 12.20+, 14.14+, or 16.0+), install with [npm][]:
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```sh
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npm install character-reference-invalid
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```
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In Deno with [Skypack][]:
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```js
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import {characterReferenceInvalid} from 'https://cdn.skypack.dev/character-reference-invalid@2?dts'
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```
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In browsers with [Skypack][]:
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```html
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<script type="module">
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import {characterReferenceInvalid} from 'https://cdn.skypack.dev/character-reference-invalid@2?min'
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</script>
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```
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## Use
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```js
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import {characterReferenceInvalid} from 'character-reference-invalid'
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console.log(characterReferenceInvalid[0x80]) // => '€'
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console.log(characterReferenceInvalid[0x89]) // => '‰'
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console.log(characterReferenceInvalid[0x99]) // => '™'
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```
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## API
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This package exports the following identifiers: `characterReferenceInvalid`.
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There is no default export.
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### `characterReferenceInvalid`
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`Record<number, string>` — mapping between invalid numeric character reference
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codes to replacements characters.
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## Source
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See [`html.spec.whatwg.org`][source].
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## Types
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This package is fully typed with [TypeScript][].
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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 12.20+, 14.14+, and 16.0+.
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It also works in Deno and modern browsers.
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## Security
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This package is safe.
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## Related
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* [`wooorm/character-entities`](https://github.com/wooorm/character-entities)
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— HTML character entity info
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* [`wooorm/character-entities-html4`](https://github.com/wooorm/character-entities-html4)
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— HTML 4 character entity info
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* [`wooorm/character-entities-legacy`](https://github.com/wooorm/character-entities-legacy)
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— legacy character entity info
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* [`wooorm/parse-entities`](https://github.com/wooorm/parse-entities)
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— parse HTML character references
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* [`wooorm/stringify-entities`](https://github.com/wooorm/stringify-entities)
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— serialize HTML character references
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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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## License
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[MIT][license] © [Titus Wormer][author]
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<!-- Definitions -->
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[build-badge]: https://github.com/wooorm/character-reference-invalid/workflows/main/badge.svg
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[build]: https://github.com/wooorm/character-reference-invalid/actions
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[coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/character-reference-invalid.svg
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[coverage]: https://codecov.io/github/wooorm/character-reference-invalid
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[downloads-badge]: https://img.shields.io/npm/dm/character-reference-invalid.svg
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[downloads]: https://www.npmjs.com/package/character-reference-invalid
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[size-badge]: https://img.shields.io/bundlephobia/minzip/character-reference-invalid.svg
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[size]: https://bundlephobia.com/result?p=character-reference-invalid
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[npm]: https://docs.npmjs.com/cli/install
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[skypack]: https://www.skypack.dev
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[license]: license
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[author]: https://wooorm.com
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[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
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[typescript]: https://www.typescriptlang.org
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[contribute]: https://opensource.guide/how-to-contribute/
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[source]: https://html.spec.whatwg.org/multipage/parsing.html#table-charref-overrides
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