Bulbasaur was created with the objective of sharing components used by the Preadly crawler. It is a module for crawler operations, which uses the XML parser Nokogiri. Bulbasaur helps to simplify those HTML operations. This is one of contributions of pread.ly to the open source community.

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Add this line to your application's Gemfile:

gem 'bulbasaur'

Or to get the latest updates:

gem 'bulbasaur', github: 'preadly/bulbasaur', branch: 'master'

And then execute:

$ bundle

Or install it manually with:

$ gem install bulbasaur

Bulbasaur has three main operations: Extract, Replace and Other.

Has four sub-operations:

• ExtractImagesFromHTML
• ExtractImagesFromYoutube
• ExtractImagesFromVimeo
• ExtractImagesFromAllResorces

html = "<img src='test.jpg' alt='test' /><img src='test-2.jpg' alt='test' />"
images = Bulbasaur::ExtractImagesFromHTML.new(html).call
puts images #print [{url: 'test.jpg', alt='alt'}, {url: 'test-2.jpg', alt='test'}]

Has two sub-operations:

• ReplacesByTagImage
• ReplacesByTagLink

html = "<img src='test.jpg' alt='test' />"
image_replaces = [{original_image_url:"test.jpg", url: "new-image.png"}]
Bulbasaur::ReplacesByTagImage.new(html, image_replaces).call
puts html #print <img src='new-image.png' alt='test' />

• NormalizeURL

base_url = 'http://github.com'
context_url = 'preadly'
url = Bulbasaur::NormalizeURL.new(base_url, context_url).call
puts url #print http://github.com/preadly

For more information about the components, run the RSpec tests with parameter --format d.

rspec --format d --color

1. Fork it ( https://github.com/preadly/bulbasaur );
2. Create your feature branch (git checkout -b my-new-feature);
3. Commit your changes (git commit -am 'Add some feature');
4. Push to the branch (git push origin my-new-feature);
5. Create a new Pull Request.