module Choice

# File lib/choice.rb, line 51
def [](choice)
  choices[choice]
end

# File lib/choice.rb, line 125
def args_of(opt)
  args_of_opt = []

  # Return an array of the arguments between opt and the next option,
  # which all start with "-"
  @@args.slice(@@args.index(opt)+1, @@args.length).select do |arg|
    if arg[0].chr != "-"
      args_of_opt << arg
    else
      break
    end
  end
  args_of_opt
end

# File lib/choice.rb, line 46
def choices
  @@choices
end

# File lib/choice.rb, line 56
def option(opt, options = {}, &block)
  # Notice: options is maintained as an array of arrays, the first element
  # the option name and the second the option object.
  @@options << [opt.to_s, Option.new(options, &block)]
end

# File lib/choice.rb, line 14
def options(hash = {}, &block)
  # if we are passing in a hash to define our options, use that straight
  options_from_hash(hash) unless hash.empty?

  # Setup all instance variables
  reset! if hash.empty?
  @@args ||= ARGV

  # Eval the passed block to define the options.
  instance_eval(&block) if block_given?

  # Parse what we've got.
  parse unless parsed?
end

# File lib/choice.rb, line 30
def options_from_hash(options_hash)
  options_hash.each do |name, definition|
    option = Option.new
    definition.each do |key, value|
      Array(value).each { |hit| option.send(key, hit) }
    end
    @@options << [name.to_s, option]
  end
end

# File lib/choice.rb, line 41
def rest
  @@rest
end

# File lib/choice.rb, line 63
def separator(str)
  # We store separators as simple strings in the options array to maintain
  # order.  They are ignored by the parser.
  @@options << str
end