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PolymerElements / marked-element

Element wrapper for the marked library
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Published on NPM Build status Published on webcomponents.org

<marked-element>

Element wrapper for the marked library.

<marked-element> accepts Markdown source, and renders it to a child element with the slot markdown-html. This child element can be styled as you would a normal DOM element. If you do not provide a child element with the markdown-html slot, the Markdown source will still be rendered, but to a shadow DOM child that cannot be styled.

See: Documentation, Demo.

Usage

Installation

npm install --save @polymer/marked-element

In an html file

<html>
  <head>
    <script type="module">
      import '@polymer/marked-element/marked-element.js';
    </script>
    <style>
      [slot="markdown-html"] p {
        color: red;
      }
    </style>
  </head>
  <body>
    <marked-element>
      <div slot="markdown-html"></div>
      <script type="text/markdown">
        Check out my markdown!

        We can even embed elements without fear of the HTML parser mucking up their
        textual representation:

        ```html
        <awesome-sauce>
          <div>Oops, I'm about to forget to close this div.
        </awesome-sauce>
  </script>
</marked-element>

### In a Polymer 3 element
```js
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/marked-element/marked-element.js';

class SampleElement extends PolymerElement {
  static get template() {
    return html`
      <style>
        [slot="markdown-html"] p {
          color: red;
        }
      </style>
      <marked-element>
        <div slot="markdown-html"></div>
        <script type="text/markdown">
          Check out my markdown!

          We can even embed elements without fear of the HTML parser mucking up their
          textual representation:

          \`\`\`html
          <awesome-sauce>
            <div>Oops, I'm about to forget to close this div.
          </awesome-sauce>
          \`\`\`
        </script>
      </marked-element>
    `;
  }
}
customElements.define('sample-element', SampleElement);

Contributing

If you want to send a PR to this element, here are the instructions for running the tests and demo locally:

Installation

git clone https://github.com/PolymerElements/marked-element
cd marked-element
npm install
npm install -g polymer-cli

Running the demo locally

polymer serve --npm
open http://127.0.0.1:<port>/demo/

Running the tests

polymer test --npm