Crystal sequence differencing implementation.

Based on the algorithm proposed in "An O(NP) Sequence Comparision Algorithm" (Wu, 1989)

Add this to your application's shard.yml:

dependencies:
  diff:
    github: MakeNowJust/crystal-diff

require "colorize"
require "../src/diff"

Diff.diff("hello world", "hello good-bye").each do |chunk|
  print chunk.data.colorize(
    chunk.append? ? :green : chunk.delete? ? :red : :dark_gray)
end
puts

$ crystal spec

1. Fork it ( https://github.com/MakeNowJust/crystal-diff/fork )
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

• MakeNowJust TSUYUSATO Kitsune - creator, maintainer