remark-attr
Add support of custom attributes to Markdown syntax.
Last updated 6 months ago by ache .
MIT · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install remark-attr 
SYNC missed versions from official npm registry.

remark-attr

This plugin adds support for custom attributes to Markdown syntax.

For security reasons, this plugin uses html-element-attributes. The use of JavaScript attributes (onload for example) is not allowed by default.

Default Syntax

Images :

![alt](img){attrs} / ![alt](img){ height=50 }

Links :

[rms with a computer](https://rms.sexy){rel="external"}

Autolink :

Email me at : <mailto:falseEmail@example.org>

Header (Atx) :

### This is a title
{style="color:red;"}

or

### This is a title {style="color:yellow;"}

If option enableAtxHeaderInline is set to `true` (default value).

Header :

This is a title
---------------
{style="color: pink;"}

Emphasis :

Npm stand for *node*{style="color:red"} packet manager.

Strong :

This is a **Unicorn**{awesome} !

Delete :

Your problem is ~~at line 18~~{style="color: grey"}. My mistake, it's at line 14.


Code :

~~~markdown
You can use the `fprintf`{language=c} function to format the output to a file.

Footnote (using remark-footnotes) :

This is a footnote[^ref]{style="opacity: 0.8;"}


[^ref]: And the reference.

rehype

At the moment it aims is to be used with rehype only, using remark-rehype.

[rms with a computer](https://rms.sexy){rel=external}

produces:

<a href="https://rms.sexy" rel="external">rms with a computer</a>

Installation

npm:

npm install remark-attr

Dependencies:

const unified = require('unified')
const remarkParse = require('remark-parse')
const stringify = require('rehype-stringify')
const remark2rehype = require('remark-rehype')
const remarkAttr = require('remark-attr')

Usage:

const testFile = `

Here a test :

![ache avatar](https://ache.one/res/ache.svg){ height=100 }

`

unified()
  .use(remarkParse)
  .use(remarkAttr)
  .use(remark2rehype)
  .use(stringify)
  .process( testFile, (err, file) => {
    console.log(String(file))
  } )

Output :

$ node index.js
<p>Here a test :</p>
<p><img src="https://ache.one/res/ache.svg" alt="ache avatar" height="100"></p>

API

remarkAttr([options])

Parse attributes of markdown elements.

remarkAttr.SUPPORTED_ELEMENTS

The list of currently supported elements.

['link', 'atxHeading', 'strong', 'emphasis', 'deletion', 'code', 'setextHeading']

['link', 'atxHeading', 'strong', 'emphasis', 'deletion', 'code', 'setextHeading', 'fencedCode', 'reference', 'footnoteCall', 'autoLink']

Options
options.allowDangerousDOMEventHandlers

Whether to allow the use of on-* attributes. They are depreciated and disabled by default for security reasons. Its a boolean (default: false). If allowed, DOM event handlers will be added to the global scope.

options.elements

The list of elements witch the attributes should be parsed. It's a list of string, a sub-list of SUPPORTED_ELEMENTS. If you are confident enough you can add the name of a tokenizer that isn't officialy supported but remember that it will not have been tested.

options.extend

An object that extends the list of attributes supported for some elements.

Example : extend: {heading: ['original', 'quality', 'format', 'toc']}

With this configuration, if the scope permits it, 4 mores attributes will be supported for atxHeading elements.

options.scope

A string with the value global or specific or extented or none or every.

  • none will disable the plugin.
  • global will activate only the global attributes.
  • specific will activate global and specific attributes.
  • extended will add personalized tags for some elements.
  • permissive or every will allow every attributes (except dangerous one) on every elements supported.
options.enableAtxHeaderInline

Whether to allow atx headers with attributes on the same line.

### This is a title {style="color:yellow;"}

How does it works ?

This plugin extend the syntax of [remark-parse][remark-parse] by replacing old tokenizers by new one. The new tokenizers functions re-use the old tokenizers and md-attr-parser to parse the extended syntax.

So option.SUPPORTED_ELEMENTS are the names of the tokenizers and neither arbitrary names nor HTML tag names. Here is the related documentation.

License

Distributed under a MIT license.

Current Tags

  • 0.11.1                                ...           latest (6 months ago)

17 Versions

  • 0.11.1                                ...           6 months ago
  • 0.11.0                                ...           6 months ago
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