gray-matter VS commonmark-spec

Writing in markdown is super convenient, and supported by just about any text editor. To convert these .md files to browser-ready HTML, I wrote a simple little Node.js script using two great npm packages called gray-matter and showdown.

Next, install gray-matter to extract metadata from the front matter of markdown files, and marked to convert the markdown files to HTML:

It turns out that Docusaurus uses an open source JavaScript parser called gray-matter to parse the front matter from markdown files! After installing gray-matter using npm and them importing it into the markdownUtils.ts file, all it takes is calling the matter method and passing the markdown file contents to get returned an Object with data and content (the data being the front matter and the content being the rest of the markdown file contents).

Although we are building a custom table of contents, we won't have to write everything from scratch. To separate the Markdown/MDX content from the front matter, we'll use the Gray-matter package. It is optional in case you don't have front matter in your Markdown files. To process the Markdown itself, we'll use the Remark package. We'll also need the unist-util-visit package for traversing node trees and mdast-util-to-string for getting the text content of a node.

In this article we walk you through the process of creating a simple blog app using the popular React framework NextJS, gray-matter and next-mdx-remote.

In order to get post information (such as author, title, date, etc.) from our HTML without having them be apart of our rendered post we need a way to parse YAML front matter, this is where gray-matter comes in hand.

To do this, we use the matter npm package.

It’s actually not part of the CommonMark spec, so you’ll often need a 3rd party library to parse it out on top of your Markdown parser. In JavaScript we use gray-matter which converts frontmatter into a JS object we can more easily use.

Over the past few weeks, I mostly wrote on how to template a Node.js application with EJS using Express. Then, I wrote an article showing how to create a Markdown blog in Node.js using EJS, Express, gray-matter and markdown-it. Today, I'll combine those tutorials to turn the Markdown blog, from the last tutorial, into a simple SSG.

gray-matter, to parse the front matter from the Markdown files

Edit: this is because GitHub uses cmark-gfm, which is a fork of cmark, which implements the CommonMark variant of markdown. Looks like CommonMark still doesn't support definition lists. :(

BookStack dev here. There's no specific "import" option but you can use the Markdown editor in BookStack and paste in your Markdown content there. The API is essentially just an endpoint to accept the same kind of data, for of course you could automate against the API for batch import. One thing to keep in mind is that BookStack markdown support is fairly tightly scoped to (commonmark + tables + tasklists), although HTML within MD is supported.

>A single canonical reference

https://commonmark.org/

Typically with major new releases of software, when the number left of the dot (e.g. 2.0) increases, it’s shipped as a separate product. Not always, but generally. The Bear folks can speak for themselves but IIRC a lot of the code was refactored / rewritten to support, for example, CommonMark. So, under the hood, it’s literally brand new in some respects.

I use Obsidian (https://obsidian.md) for a lot of things, including my RPG stuff, and there are options for exporting things as PDFs. It’s great for getting organized and doing research, but I would use other tools for long-form writing and layout. What I like about Obsidian though is that everything is done in Markdown (https://commonmark.org) and I can use Pandoc (https://pandoc.org) to transform the source to whatever I need. The caveat is that Obsidian uses a flavor of Markdown with some non-standard extensions, so a pure Markdown editor like Typora (https://typora.io) might be a better choice depending on your needs.

yes, this is the "inventor" of markdown and those rules will always work. Hugo uses something called "Commonmark" which is developed on top of the original markdown. But the original rules will always work too.

Reddit and many other sites support Markdown as an easy way to add emphasis, links, headings, etc. Markdown does not contain any keywords, as it is intended to be language-independent. However, Markdown syntax makes heavy use of square brackets [] and other characters that are difficult to type with an Ukrainian keyboard layout, e.g., the backtick `.

Check out commonmark, that is the Markdown standard supported by numerous converters including pandoc.

And if this is an exercise into that you can use a Markdown spec like CommonMark which is the spec Reddit and a variety of other sites use.