micromark-util-decode-numeric-character-reference

What is micromark-util-decode-numeric-character-reference?

The micromark-util-decode-numeric-character-reference package is a utility for decoding numeric character references in HTML. It is part of the micromark suite of tools for parsing and processing Markdown and HTML content.

What are micromark-util-decode-numeric-character-reference's main functionalities?

Decode Numeric Character References

This feature allows you to decode numeric character references (e.g., 😀) into their corresponding characters (e.g., 😀). The code sample demonstrates decoding a hexadecimal numeric character reference.

const decode = require('micromark-util-decode-numeric-character-reference');

const input = '😀';
const output = decode(input);
console.log(output); // 😀

Handle Invalid References Gracefully

This feature ensures that invalid numeric character references are handled gracefully by returning a replacement character (�). The code sample demonstrates decoding an invalid hexadecimal numeric character reference.

const decode = require('micromark-util-decode-numeric-character-reference');

const input = '&#xZZZZ;';
const output = decode(input);
console.log(output); // �

Other packages similar to micromark-util-decode-numeric-character-reference

he

The 'he' package (short for HTML entities) is a robust HTML entity encoder/decoder. It supports both named and numeric character references and offers more comprehensive functionality compared to micromark-util-decode-numeric-character-reference. It is widely used for encoding and decoding HTML entities in various contexts.

entities

The 'entities' package is another popular library for encoding and decoding HTML entities. It supports both named and numeric character references and provides a simple API for working with HTML entities. It is similar in functionality to micromark-util-decode-numeric-character-reference but offers additional features for encoding entities.

README

micromark-util-decode-numeric-character-reference

micromark utility to decode numeric character references.

Contents

• What is this?
• When should I use this?
• Install
• Use
• API
  • decodeNumericCharacterReference(value, base)
• Types
• Compatibility
• Security
• Contribute
• License

What is this?

This package exposes an algorithm to decode numeric character references.

When should I use this?

This package might be useful when you are making your own micromark extensions.

Install

This package is ESM only. In Node.js (version 16+), install with npm:

npm install micromark-util-decode-numeric-character-reference

In Deno with esm.sh:

import {decodeNumericCharacterReference} from 'https://esm.sh/micromark-util-decode-numeric-character-reference@1'

In browsers with esm.sh:

<script type="module">
  import {decodeNumericCharacterReference} from 'https://esm.sh/micromark-util-decode-numeric-character-reference@1?bundle'
</script>

Use

import {decodeNumericCharacterReference} from 'micromark-util-decode-numeric-character-reference'

decodeNumericCharacterReference('41', 16) // 'A'
decodeNumericCharacterReference('65', 10) // 'A'
decodeNumericCharacterReference('A', 16) // '\n'
decodeNumericCharacterReference('7F', 16) // '�' - Control
decodeNumericCharacterReference('110000', 16) // '�' - Out of range

API

This module exports the identifier: decodeNumericCharacterReference. There is no default export.

decodeNumericCharacterReference(value, base)

Turn the number (in string form as either hexa- or plain decimal) coming from a numeric character reference into a character.

Sort of like String.fromCharCode(Number.parseInt(value, base)), but makes non-characters and control characters safe.

Parameters

• value (string) — value to decode
• base (number, probably 10 or 16) — numeric base

Returns

Character (string).

Types

This package is fully typed with TypeScript. It exports no additional types.

Compatibility

Projects maintained by the unified collective are compatible with all maintained versions of Node.js. As of now, that is Node.js 16+. Our projects sometimes work with older versions, but this is not guaranteed.

This package works with micromark version 3+.

Security

This package is safe. See security.md in micromark/.github for how to submit a security report.

Contribute

See contributing.md in micromark/.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, organisation, or community you agree to abide by its terms.

License

MIT © Titus Wormer