Ruby Query Language *snaky edition*

rql

#!/usr/bin/env ruby

# Ruby Query Language *snaky edition*
# usage: ./rql sample.rql

module RQL

  class Context

    def self.evaluate(rql_script)
      context = self.new
      context.instance_eval(rql_script)
      context
    end

    def save(obj, attrs)
      puts "=> #{attrs.inspect} on #{obj.inspect}"
    end

  end

  def self.run(rql_file)
    rql_content = File.read(rql_file)
    Context.evaluate(rql_content)
  end
end

puts %{\n# Ruby Query Language *snaky edition*\n}
RQL.run(ARGV[0])

sample.rql

# Ruby Query Language *snaky edition*

save :resource, {:attr1 => "v1", :attr2 => "v2"}
save :resource, {:attr1 => "v11", :attr2 => "v22"}
save :resource, {:attr1 => "v111", :attr2 => "v222"}