Yet another markdown parser, Compliant to CommonMark specification, written in Crystal.
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README.md

markd

Language Tag Build Status G Yet another markdown parser built for speed, written in Crystal, Compliant to CommonMark specification (v0.27). Copy from commonmark.js.

Installation

Add this to your application's shard.yml:

dependencies:
  markd:
    github: icyleaf/markd

Quick start

require "markd"

markdown = <<-MD
# Hello Markd

> Yet another markdown parser built for speed, written in Crystal, Compliant to CommonMark specification.
MD

html = Markd.to_html(markdown)

Also here is an options to configure the parse and render.

options = Markd::Options.new(smart: true, safe: true)
Markd.to_html(markdown, options)

Options

Name Type Default value Description
time Bool false render parse cost time during read source, parse blocks, parse inline.
smart Bool false if true, straight quotes will be made curly,
-- will be changed to an en dash,
--- will be changed to an em dash, and
... will be changed to ellipses.
source_pos Bool false if true, source position information for block-level elements
will be rendered in the data-sourcepos attribute (for HTML)
safe Bool false if true, raw HTML will not be passed through to HTML output (it will be replaced by comments)
gfm Bool false Not support for now
toc Bool false Not support for now

Advanced

If you want use custom renderer, it can!

class CustomRenderer < Markd::Renderer

  def strong(node, entering)
  end

  # more methods following in render.
end

options = Markd::Options.new(time: true)
document = Markd::Parser.parse(markdown, options)
renderer = CustomRenderer.new(options)

html = renderer.render(document)

Performance

First of all, Markd is slower than Crystal Built-in Markdown which it is a lite version, only apply for generte Cystal documents (#4496, #4613).

Here is the result of a sample markdown file parse at MacBook Pro Retina 2015 (2.2 GHz):

Crystal Markdown   3.28k (305.29µs) (± 0.92%)       fastest
           Markd 305.36  (  3.27ms) (± 5.52%) 10.73× slower

Recently, i'm working to compare the other popular commonmark parser, the code is stored in benchmarks.

Donate

Markd is a open source, collaboratively funded project. If you run a business and are using Markd in a revenue-generating product, it would make business sense to sponsor Markd development. Individual users are also welcome to make a one time donation if Totem has helped you in your work or personal projects.

You can donate via Paypal.

How to Contribute

Your contributions are always welcome! Please submit a pull request or create an issue to add a new question, bug or feature to the list.

All Contributors are on the wall.

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License

MIT License © icyleaf