hast-util-to-parse5

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[hast][] utility to transform to a [parse5][parse5] [AST][parse5-node].

Contents

* What is this?
* When should I use this?
* Install
* Use
* API
* [toParse5(tree[, options])](#toparse5tree-options)
* Options
* Space
* Types
* Compatibility
* Security
* Related
* Contribute
* License

What is this?

This package is a utility that can turn a hast syntax tree into a parse5 AST.
Why not use a Parse5 adapter, you might ask?
Well, because it’s more code weight to use adapters, and more fragile.

When should I use this?

This package is useful when working with parse5, and for some reason want to
generate its AST again.
The inverse utility, [hast-util-from-parse5][hast-util-from-parse5], is more
likely what you want.

Install

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

``sh
npm install hast-util-to-parse5
`

In Deno with [esm.sh][esmsh]:

`js
import {toParse5} from 'https://esm.sh/hast-util-to-parse5@8'
`

In browsers with [esm.sh][esmsh]:

`html

`

Use

`js
import {toParse5} from 'hast-util-to-parse5'

const tree = toParse5({
type: 'element',
tagName: 'h1',
properties: {},
children: [{type: 'text', value: 'World!'}]
})

console.log(tree)
`

Yields:

`js
{ nodeName: 'h1',
tagName: 'h1',
attrs: [],
namespaceURI: 'http://www.w3.org/1999/xhtml',
childNodes: [ { nodeName: '#text', value: 'World!', parentNode: [Circular] } ] }
`

API

This package exports the identifier [toParse5][api-to-parse5].
There is no default export.

$3

Transform a hast tree to a parse5 AST.

###### Parameters

* tree ([HastNode][hast-node])
— tree to transform
* options ([Options][api-options], optional)
— configuration

###### Returns

parse5 node ([Parse5Node][parse5-node]).

$3

Configuration (TypeScript type).

###### Fields

* space ([Space][api-space], optional)
— which space the document is in

$3

Namespace (TypeScript type).

###### Type

`ts
type Space = 'html' | 'svg'
`

Types

This package is fully typed with [TypeScript][].
It exports the additional types [Options][api-options] and
[Space][api-space].

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, hast-util-to-parse5@^8,
compatible with Node.js 16.

Security

Use of hast-util-to-parse5 can open you up to a
[cross-site scripting (XSS)][xss] attack if the hast tree is unsafe.

Related

* hast-util-from-parse5
— transform from Parse5’s AST to hast
* hast-util-to-nlcst
— transform hast to nlcst
* hast-util-to-mdast
— transform hast to mdast
* hast-util-to-xast
— transform hast to xast
* mdast-util-to-hast
— transform mdast to hast
* mdast-util-to-nlcst
— transform mdast to nlcst

Contribute

See [contributing.md][contributing] in [syntax-tree/.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, organization, or community you agree to
abide by its terms.

License

[MIT][license] © [Titus Wormer][author]

[build-badge]: https://github.com/syntax-tree/hast-util-to-parse5/workflows/main/badge.svg

[build]: https://github.com/syntax-tree/hast-util-to-parse5/actions

[coverage-badge]: https://img.shields.io/codecov/c/github/syntax-tree/hast-util-to-parse5.svg

[coverage]: https://codecov.io/github/syntax-tree/hast-util-to-parse5

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[downloads]: https://www.npmjs.com/package/hast-util-to-parse5

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[sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg

[backers-badge]: https://opencollective.com/unified/backers/badge.svg

[collective]: https://opencollective.com/unified

[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg

[chat]: https://github.com/syntax-tree/unist/discussions

[npm]: https://docs.npmjs.com/cli/install

[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c

[esmsh]: https://esm.sh

[typescript]: https://www.typescriptlang.org

[license]: license

[author]: https://wooorm.com

[health]: https://github.com/syntax-tree/.github

[contributing]: https://github.com/syntax-tree/.github/blob/main/contributing.md

[support]: https://github.com/syntax-tree/.github/blob/main/support.md

[coc]: https://github.com/syntax-tree/.github/blob/main/code-of-conduct.md

[xss]: https://en.wikipedia.org/wiki/Cross-site_scripting

[hast]: https://github.com/syntax-tree/hast

[hast-node]: https://github.com/syntax-tree/hast#nodes

[parse5]: https://github.com/inikulin/parse5

[parse5-node]: https://github.com/inikulin/parse5/blob/master/packages/parse5/lib/tree-adapters/default.ts

[hast-util-from-parse5]: https://github.com/syntax-tree/hast-util-from-parse5

[api-to-parse5]: #toparse5tree-options

[api-options]: #options

[api-space]: #space