Svg Inline File Extractor

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The purpose of this gem is to extract inline SVG base64 encoded PNG images. This is based in part from ideas in https://gist.github.com/r10r/2822884

This is a work in progress. You should specify a specific version of this gem when using, as the interface is subject to wild change in this early phase of development.

Roadmap

  • ~~Add ability to replace an inline image with a URI after extraction~~ Done
  • ~~Extract svg_file image handling to a separate class~~ Done
  • ~~Work with more than just PNG files~~ Done
  • Query images for their type, possibly other meta

Installation

This gem is tested against Ruby 2.2.0 and 2.3.0

Add this line to your application’s Gemfile:

“by gem ‘svg-inline-file-extractor’

“

And then execute:

$ bundle

Or install it yourself as:

$ gem install svg-inline-file-extractor

Usage

Example

from bin/console

“by require ‘svg_inline_file_extractor’

open a file

set path to an SVG file (example file in the gem under spec/fixtures)

file = File.read(
Maruku could not parse this XML/HTML: 
<PATH TO SOME SVG FILE WITH INLINE IMAGES>)

files = SvgInlineFileExtractor.binary_images(file)

Open all the extracted files:

files.each do |file| tf = Tempfile.new([file,.png]) tf.write(file) tf.close

#open the file with system open open #{tf.path} end

“

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec 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/boie0025/svg_inline_file_extractor. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.