/mrml-ruby

Ruby wrapper for MRML, the MJML parser implementation in Rust.

Primary LanguageRubyMIT LicenseMIT

MRML Ruby

Ruby wrapper for MRML, the MJML markup language implementation in Rust. Rust must be available on your system to install this gem if you use a version below v1.4.2.

Gem Version Build Maintainability

Installation

Add this line to your application's Gemfile:

gem 'mrml'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install mrml

Usage

require 'mrml'

mjml = <<-HTML
<mjml>
  <mj-head>
    <mj-title>Newsletter Title</mj-title>
    <mj-preview>Newsletter Preview</mj-preview>
  </mj-head>
  <mj-body>
    <mj-section>
      <mj-column>
        <mj-text font-size="20px" color="#F45E43" font-family="helvetica">Hello World</mj-text>
      </mj-column>
    </mj-section>
  </mj-body>
</mjml>
HTML

# Using module methods
MRML.to_html(mjml) # Generate html from mjml
MRML.to_json(mjml) # Generate json from mjml
MRML.to_hash(mjml) # Generate hash from mjml

# Using Template class
template = MRML::Template.new(mjml)

template.title   # Get template title
template.preview # Get template preview

template.to_html # Render as html
template.to_mjml # Render as mjml
template.to_json # Render as json
template.to_hash # Render as hash
require 'mrml'

json = <<-JSON
{
  "type": "mjml",
  "children": [{
    "type": "mj-head",
    "children": [{
      "type": "mj-title",
      "children": "Newsletter Title"
    }, {
      "type": "mj-preview",
      "children": "Newsletter Preview"
    }]
  }, {
    "type": "mj-body",
    "children": [{
      "type": "mj-section",
      "children": [{
        "type": "mj-column",
        "children": [{
          "type": "mj-text",
          "attributes": {
            "font-size": "20px",
            "color": "#F45E43",
            "font-family": "helvetica"
          },
          "children": ["Hello World"]
        }]
      }]
    }]
  }]
}
JSON

# Create Template from JSON
template = MRML::Template.from_json(json)

template.to_html # Render as html
template.to_mjml # Render as mjml
template.to_json # Render as json
template.to_hash # Render as hash

Benchmark

Warming up --------------------------------------
                mrml     3.069k i/100ms
                mjml     1.000  i/100ms
Calculating -------------------------------------
                mrml     32.537k (±16.1%) i/s -    156.519k in   5.029759s
                mjml      1.895  (± 0.0%) i/s -     10.000  in   5.283579s

Comparison:
                mrml:    32537.2 i/s
                mjml:        1.9 i/s - 17169.16x  slower

Calculating -------------------------------------
                mrml     3.166k memsize (     0.000  retained)
                         2.000  objects (     0.000  retained)
                         1.000  strings (     0.000  retained)
                mjml    21.253k memsize (     1.490k retained)
                       107.000  objects (    15.000  retained)
                        20.000  strings (    11.000  retained)

Comparison:
                mrml:       3166 allocated
                mjml:      21253 allocated - 6.71x more

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/hardpixel/mrml-ruby.

License

The gem is available as open source under the terms of the MIT License.