markd

Yet another markdown parser built for speed, Compliant to CommonMark specification markdown commonmark gfm markdown-flavors
0.4.0 released
icyleaf/markd
110 30 6
icyleaf

markd

Language Tag Build Status

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 are 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) | | prettyprint | Bool | false | if true, code tags generated by code blocks will have a prettyprint class added to them, to be used by Google code-prettify. | | gfm | Bool | false | Not supported for now | | toc | Bool | false | Not supported for now | | base_url | URI? | nil | if not nil, relative URLs of links are resolved against this URI. It act's like HTML's <base href="base_url"> in the context of a Markdown document. |

Advanced

If you want to use a 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 an 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 Markd 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.

You may also like

  • halite - HTTP Requests Client with a chainable REST API, built-in sessions and middlewares.
  • totem - Load and parse a configuration file or string in JSON, YAML, dotenv formats.
  • poncho - A .env parser/loader improved for performance.
  • popcorn - Easy and Safe casting from one type to another.
  • fast-crystal - 💨 Writing Fast Crystal 😍 -- Collect Common Crystal idioms.

License

MIT License © icyleaf

markd:
  github: icyleaf/markd
  version: ~> 0.4.0
License MIT
Crystal 1.0.0

Authors

Dependencies 0

Development Dependencies 0

Last synced .
search fire star recently