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remark-stringify

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Comparing version 10.0.1 to 10.0.2

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package.json
{
"name": "remark-stringify",
"version": "10.0.1",
"description": "remark plugin to compile markdown",
"version": "10.0.2",
"description": "remark plugin to add support for serializing markdown",
"license": "MIT",

@@ -6,0 +6,0 @@ "keywords": [

@@ -7,18 +7,63 @@ # remark-stringify

[![Size][size-badge]][size]
[![Chat][chat-badge]][chat]
[![Sponsors][sponsors-badge]][collective]
[![Backers][backers-badge]][collective]
[![Chat][chat-badge]][chat]
[Compiler][] for [**unified**][unified].
Serializes [**mdast**][mdast] syntax trees to markdown.
Used in the [**remark** processor][remark] but can be used on its own as well.
Can be [extended][extend] to change how markdown is serialized.
**[remark][]** plugin to add support for serializing markdown.
## Contents
* [What is this?](#what-is-this)
* [When should I use this?](#when-should-i-use-this)
* [Install](#install)
* [Use](#use)
* [API](#api)
* [`unified().use(remarkStringify[, options])`](#unifieduseremarkstringify-options)
* [Syntax](#syntax)
* [Syntax tree](#syntax-tree)
* [Types](#types)
* [Security](#security)
* [Contribute](#contribute)
* [Sponsor](#sponsor)
* [License](#license)
## What is this?
This package is a [unified][] ([remark][]) plugin that defines how to take a
syntax tree as input and turn it into serialized markdown.
This plugin is built on [`mdast-util-to-markdown`][mdast-util-to-markdown],
which turns [mdast][] syntax trees into a string.
remark focusses on making it easier to transform content by abstracting such
internals away.
**unified** is a project that transforms content with abstract syntax trees
(ASTs).
**remark** adds support for markdown to unified.
**mdast** is the markdown AST that remark uses.
This is a remark plugin that defines how mdast is turned into markdown.
## When should I use this?
This plugin adds support to unified for serializing markdown.
You can alternatively use [`remark`][remark-core] instead, which combines
unified, [`remark-parse`][remark-parse], and this plugin.
You can combine this plugin with other plugins to add syntax extensions.
Notable examples that deeply integrate with it are
[`remark-gfm`][remark-gfm],
[`remark-mdx`][remark-mdx],
[`remark-frontmatter`][remark-frontmatter],
[`remark-math`][remark-math], and
[`remark-directive`][remark-directive].
You can also use any other [remark plugin][plugin] before `remark-stringify`.
If you want to handle syntax trees manually, you can use
[`mdast-util-to-markdown`][mdast-util-to-markdown].
## Install
This package is [ESM only](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c):
Node 12+ is needed to use it and it must be `import`ed instead of `require`d.
This package is [ESM only](https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c).
In Node.js (version 12.20+, 14.14+, or 16.0+), install with [npm][]:
[npm][]:
```sh

@@ -28,4 +73,20 @@ npm install remark-stringify

In Deno with [Skypack][]:
```js
import remarkStringify from 'https://cdn.skypack.dev/remark-stringify@10?dts'
```
In browsers with [Skypack][]:
```html
<script type="module">
import remarkStringify from 'https://cdn.skypack.dev/remark-stringify@10?min'
</script>
```
## Use
Say we have the following module `example.js`:
```js

@@ -37,18 +98,21 @@ import {unified} from 'unified'

unified()
.use(rehypeParse)
.use(rehypeRemark)
.use(remarkStringify, {
bullet: '*',
fence: '~',
fences: true,
incrementListMarker: false
})
.process('<h1>Hello, world!</h1>')
.then((file) => {
console.log(String(file))
})
main()
async function main() {
const file = await unified()
.use(rehypeParse)
.use(rehypeRemark)
.use(remarkStringify, {
bullet: '*',
fence: '~',
fences: true,
incrementListMarker: false
})
.process('<h1>Hello, world!</h1>')
console.log(String(file))
}
```
Yields:
Running that with `node example.js` yields:

@@ -59,8 +123,4 @@ ```markdown

[See **unified** for more examples »][unified]
## API
[See **unified** for API docs »][unified]
This package exports no identifiers.

@@ -71,35 +131,150 @@ The default export is `remarkStringify`.

Configure the `processor` to serialize [**mdast**][mdast] syntax trees to
markdown.
Add support for serializing markdown.
Options are passed to [`mdast-util-to-markdown`][mdast-util-to-markdown]:
all formatting options are supported.
###### `options`
##### `options`
Options can be passed directly or passed later through
[`processor.data()`][data].
Configuration (optional).
All the formatting options of [`mdast-util-to-markdown`][to-markdown-options]
are supported and will be passed through.
###### `options.bullet`
## Extending the compiler
Marker to use for bullets of items in unordered lists (`'*'`, `'+'`, or `'-'`,
default: `'*'`).
See [`mdast-util-to-markdown`][to-markdown].
Then create a wrapper plugin such as [`remark-gfm`][remark-gfm].
###### `options.bulletOther`
Marker to use in certain cases where the primary bullet doesn’t work (`'*'`,
`'+'`, or `'-'`, default: depends).
See [`mdast-util-to-markdown`][mdast-util-to-markdown] for more information.
###### `options.bulletOrdered`
Marker to use for bullets of items in ordered lists (`'.'` or `')'`, default:
`'.'`).
###### `options.bulletOrderedOther`
Marker to use in certain cases where the primary bullet for ordered items
doesn’t work (`'.'` or `')'`, default: none).
See [`mdast-util-to-markdown`][mdast-util-to-markdown] for more information.
###### `options.closeAtx`
Whether to add the same number of number signs (`#`) at the end of an ATX
heading as the opening sequence (`boolean`, default: `false`).
###### `options.emphasis`
Marker to use for emphasis (`'*'` or `'_'`, default: `'*'`).
###### `options.fence`
Marker to use for fenced code (``'`'`` or `'~'`, default: ``'`'``).
###### `options.fences`
Whether to use fenced code always (`boolean`, default: `false`).
The default is to use fenced code if there is a language defined, if the code is
empty, or if it starts or ends in blank lines.
###### `options.incrementListMarker`
Whether to increment the counter of ordered lists items (`boolean`, default:
`true`).
###### `options.listItemIndent`
How to indent the content of list items (`'one'`, `'tab'`, or `'mixed'`,
default: `'tab'`).
Either with the size of the bullet plus one space (when `'one'`), a tab stop
(`'tab'`), or depending on the item and its parent list (`'mixed'`, uses `'one'`
if the item and list are tight and `'tab'` otherwise).
###### `options.quote`
Marker to use for titles (`'"'` or `"'"`, default: `'"'`).
###### `options.resourceLink`
Whether to always use resource links (`boolean`, default: `false`).
The default is to use autolinks (`<https://example.com>`) when possible
and resource links (`[text](url)`) otherwise.
###### `options.rule`
Marker to use for thematic breaks (`'*'`, `'-'`, or `'_'`, default: `'*'`).
###### `options.ruleRepetition`
Number of markers to use for thematic breaks (`number`, default:
`3`, min: `3`).
###### `options.ruleSpaces`
Whether to add spaces between markers in thematic breaks (`boolean`, default:
`false`).
###### `options.setext`
Whether to use setext headings when possible (`boolean`, default: `false`).
The default is to always use ATX headings (`# heading`) instead of setext
headings (`heading\n=======`).
Setext headings can’t be used for empty headings or headings with a rank of
three or more.
###### `options.strong`
Marker to use for strong (`'*'` or `'_'`, default: `'*'`).
###### `options.tightDefinitions`
Whether to join definitions without a blank line (`boolean`, default: `false`).
The default is to add blank lines between any flow (“block”) construct.
###### `options.handlers`
This option is a bit advanced as it requires knowledge of ASTs, so we defer
to the documentation available in
[`mdast-util-to-markdown`][mdast-util-to-markdown].
###### `options.join`
This option is a bit advanced as it requires knowledge of ASTs, so we defer
to the documentation available in
[`mdast-util-to-markdown`][mdast-util-to-markdown].
###### `options.unsafe`
This option is a bit advanced as it requires deep knowledge of markdown, so we
defer to the documentation available in
[`mdast-util-to-markdown`][mdast-util-to-markdown].
## Syntax
Markdown is serialized according to CommonMark but care is taken to format in
such a way that the resulting markdown should work with most markdown parsers.
Other plugins can add support for syntax extensions.
## Syntax tree
The syntax tree format used in remark is [mdast][].
## Types
This package is fully typed with [TypeScript][].
An `Options` type is exported, which models the interface of accepted options.
## Security
`remark-stringify` will do its best to serialize markdown to match the syntax
tree, but there are several cases where that is impossible.
It’ll do its best, but complete roundtripping is impossible given that any
value could be injected into the tree.
As markdown can be turned into HTML and improper use of HTML can open you up to
[cross-site scripting (XSS)][xss] attacks, use of remark can be unsafe.
When going to HTML, you will likely combine remark with **[rehype][]**, in which
case you should use [`rehype-sanitize`][rehype-sanitize].
As markdown is sometimes used for HTML, and improper use of HTML can open you up
to a [cross-site scripting (XSS)][xss] attack, use of `remark-stringify` and
parsing it again later can potentially be unsafe.
When parsing markdown afterwards, use remark in combination with the
[**rehype**][rehype] ecosystem, and use [`rehype-sanitize`][sanitize] to make
the tree safe.
Use of remark plugins could also open you up to other attacks.
Carefully assess each plugin and the risks involved in using them.
For info on how to submit a report, see our [security policy][security].
## Contribute

@@ -110,7 +285,4 @@

See [`support.md`][support] for ways to get help.
Ideas for new plugins and tools can be posted in [`remarkjs/ideas`][ideas].
Join us in [Discussions][chat] to chat with the community and contributors.
A curated list of awesome remark resources can be found in [**awesome
remark**][awesome].
This project has a [code of conduct][coc].

@@ -128,11 +300,19 @@ By interacting with this repository, organization, or community you agree to

<tr valign="middle">
<td width="20%" align="center" colspan="2">
<a href="https://www.gatsbyjs.org">Gatsby</a> 🥇<br><br>
<td width="20%" align="center" rowspan="2" colspan="2">
<a href="https://vercel.com">Vercel</a><br><br>
<a href="https://vercel.com"><img src="https://avatars1.githubusercontent.com/u/14985020?s=256&v=4" width="128"></a>
</td>
<td width="20%" align="center" rowspan="2" colspan="2">
<a href="https://motif.land">Motif</a><br><br>
<a href="https://motif.land"><img src="https://avatars1.githubusercontent.com/u/74457950?s=256&v=4" width="128"></a>
</td>
<td width="20%" align="center" rowspan="2" colspan="2">
<a href="https://www.hashicorp.com">HashiCorp</a><br><br>
<a href="https://www.hashicorp.com"><img src="https://avatars1.githubusercontent.com/u/761456?s=256&v=4" width="128"></a>
</td>
<td width="20%" align="center" rowspan="2" colspan="2">
<a href="https://www.gatsbyjs.org">Gatsby</a><br><br>
<a href="https://www.gatsbyjs.org"><img src="https://avatars1.githubusercontent.com/u/12551863?s=256&v=4" width="128"></a>
</td>
<td width="20%" align="center" colspan="2">
<a href="https://vercel.com">Vercel</a> 🥇<br><br>
<a href="https://vercel.com"><img src="https://avatars1.githubusercontent.com/u/14985020?s=256&v=4" width="128"></a>
</td>
<td width="20%" align="center" colspan="2">
<td width="20%" align="center" rowspan="2" colspan="2">
<a href="https://www.netlify.com">Netlify</a><br><br>

@@ -142,5 +322,9 @@ <!--OC has a sharper image-->

</td>
</tr>
<tr valign="middle">
</tr>
<tr valign="middle">
<td width="10%" align="center">
<a href="https://www.holloway.com">Holloway</a><br><br>
<a href="https://www.holloway.com"><img src="https://avatars1.githubusercontent.com/u/35904294?s=128&v=4" width="64"></a>
<a href="https://www.coinbase.com">Coinbase</a><br><br>
<a href="https://www.coinbase.com"><img src="https://avatars1.githubusercontent.com/u/1885080?s=256&v=4" width="64"></a>
</td>

@@ -152,2 +336,6 @@ <td width="10%" align="center">

<td width="10%" align="center">
<a href="https://expo.io">Expo</a><br><br>
<a href="https://expo.io"><img src="https://avatars1.githubusercontent.com/u/12504344?s=128&v=4" width="64"></a>
</td>
<td width="10%" align="center">
<a href="https://boosthub.io">Boost Hub</a><br><br>

@@ -157,5 +345,10 @@ <a href="https://boosthub.io"><img src="https://images.opencollective.com/boosthub/6318083/logo/128.png" width="64"></a>

<td width="10%" align="center">
<a href="https://expo.io">Expo</a><br><br>
<a href="https://expo.io"><img src="https://avatars1.githubusercontent.com/u/12504344?s=128&v=4" width="64"></a>
<a href="https://www.holloway.com">Holloway</a><br><br>
<a href="https://www.holloway.com"><img src="https://avatars1.githubusercontent.com/u/35904294?s=128&v=4" width="64"></a>
</td>
<td width="10%"></td>
<td width="10%"></td>
<td width="10%"></td>
<td width="10%"></td>
<td width="10%"></td>
</tr>

@@ -203,14 +396,12 @@ <tr valign="middle">

[security]: https://github.com/remarkjs/.github/blob/main/security.md
[health]: https://github.com/remarkjs/.github
[contributing]: https://github.com/remarkjs/.github/blob/HEAD/contributing.md
[contributing]: https://github.com/remarkjs/.github/blob/main/contributing.md
[support]: https://github.com/remarkjs/.github/blob/HEAD/support.md
[support]: https://github.com/remarkjs/.github/blob/main/support.md
[coc]: https://github.com/remarkjs/.github/blob/HEAD/code-of-conduct.md
[coc]: https://github.com/remarkjs/.github/blob/main/code-of-conduct.md
[ideas]: https://github.com/remarkjs/ideas
[awesome]: https://github.com/remarkjs/awesome-remark
[license]: https://github.com/remarkjs/remark/blob/main/license

@@ -222,10 +413,8 @@

[skypack]: https://www.skypack.dev
[unified]: https://github.com/unifiedjs/unified
[data]: https://github.com/unifiedjs/unified#processordatakey-value
[remark]: https://github.com/remarkjs/remark
[remark]: https://github.com/remarkjs/remark/tree/main/packages/remark
[compiler]: https://github.com/unifiedjs/unified#processorcompiler
[mdast]: https://github.com/syntax-tree/mdast

@@ -235,12 +424,24 @@

[typescript]: https://www.typescriptlang.org
[rehype]: https://github.com/rehypejs/rehype
[sanitize]: https://github.com/rehypejs/rehype-sanitize
[rehype-sanitize]: https://github.com/rehypejs/rehype-sanitize
[to-markdown]: https://github.com/syntax-tree/mdast-util-to-markdown
[mdast-util-to-markdown]: https://github.com/syntax-tree/mdast-util-to-markdown
[to-markdown-options]: https://github.com/syntax-tree/mdast-util-to-markdown#formatting-options
[remark-gfm]: https://github.com/remarkjs/remark-gfm
[extend]: #extending-the-compiler
[remark-mdx]: https://github.com/mdx-js/mdx/tree/main/packages/remark-mdx
[remark-gfm]: https://github.com/remarkjs/remark-gfm
[remark-frontmatter]: https://github.com/remarkjs/remark-frontmatter
[remark-math]: https://github.com/remarkjs/remark-math
[remark-directive]: https://github.com/remarkjs/remark-directive
[remark-parse]: ../remark-parse/
[remark-core]: ../remark/
[plugin]: https://github.com/remarkjs/remark#plugin
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