SimplePattern

Very simple and plain pattern matching library for Ruby

Synopsis

require "simple_pattern"

All = SimplePattern::All
Any = SimplePattern::Any
Not = SimplePattern::Not

words = [
  ["the",         :english], # English stopword
  ["little",      :english], # English word
  ["Schrödinger", :german],  # German word
  ["rendezvous",  :french],  # French word
]

words.each do |word|
  case word
  when SimplePattern[Any["a", "an", "the"], :english]
    puts "English stopword"  
  when SimplePattern[Any, :english]
    puts "English word"
  when SimplePattern[Any, Not[:french]]
    puts "German word"
  else
    puts "French word"
  end
end

More examples are at spec/simple_pattern_spec.rb.

Installation

$ gem install simple_pattern

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/Tatzyr/simple_pattern.