@accordproject/markdown-common

CommonMark Transformer

Converts markdown text to/from a DOM.

Usage

To transform markdown text, first install the markdown-common package:

npm install @accordproject/markdown-common --save

Then in your JavaScript code:

const CommonMarkTransformer = require('@accordproject/markdown-common').CommonMarkTransformer;
const transformer = new CommonMarkTransformer({ tagInfo : true });
const json = transformer.fromMarkdown('# Heading\n\nThis is some `code`.\n\nFin.', 'json');
console.log(JSON.stringify(json, null, 4));

The output should be:

{
          "$class": "org.accordproject.commonmark.Document",
          "xmlns": "http://commonmark.org/xml/1.0",
          "nodes": [
              {
                  "$class": "org.accordproject.commonmark.Heading",
                  "level": "1",
                  "nodes": [
                      {
                          "$class": "org.accordproject.commonmark.Text",
                          "text": "Heading"
                      }
                  ]
              },
              {
                  "$class": "org.accordproject.commonmark.Paragraph",
                  "nodes": [
                      {
                          "$class": "org.accordproject.commonmark.Text",
                          "text": "This is some "
                      },
                      {
                          "$class": "org.accordproject.commonmark.Code",
                          "text": "code"
                      },
                      {
                          "$class": "org.accordproject.commonmark.Text",
                          "text": "."
                      }
                  ]
              },
              {
                  "$class": "org.accordproject.commonmark.Paragraph",
                  "nodes": [
                      {
                          "$class": "org.accordproject.commonmark.Text",
                          "text": "Fin."
                      }
                  ]
              }
          ]
      }

Please refer to the schema for the details of all the the nodes that you should expect in the DOM.

You can then manipulate the DOM object, making any required changes:

json.nodes[0].nodes[0].text = 'My New Heading';

Finally converting the DOM back into a markdown string:

const newMarkdown = commonMark.toMarkdown(json);
console.log(newMarkdown);

The new markdown string will be:

My New Heading
====
      
This is some `code`.
      
Fin.

Note how the original H1 heading has been normalized during conversion from # syntax to ==== syntax. In commonmark these are equivalent.

License

Accord Project source code files are made available under the Apache License, Version 2.0 (Apache-2.0), located in the LICENSE file. Accord Project documentation files are made available under the Creative Commons Attribution 4.0 International License (CC-BY-4.0), available at http://creativecommons.org/licenses/by/4.0/.

© 2017-2019 Clause, Inc.