Attempt at defining commands within Cinch Plugins.

gistfile1.rb

        ARGUMENT_FORMATS = {
          string:  /\S+/,
          integer: /\d+/,
          float:   /\d*\.\d+/,
          text:    /.+/
        }

        #
        # All defined commands.
        #
        # @return [Hash{String => Hash}]
        #   The command names and additional information.
        #
        def self.commands
          @@commands ||= {}
        end

        #
        # Defines a command in the plugin.
        #
        # @param [String, Symbol] name
        #   The primary name of the command.
        #
        # @param [Array<Symbol, String, Array<String>>] arguments
        #   Arguments for the command.
        #
        # @param [Hash] options
        #   Additional options for the command.
        #
        # @option options [Symbol, Array<Symbol>] :aliases
        #   Additional aliases for the command.
        #
        def self.command(name,arguments=[],options={})
          name    = name.to_s
          aliases = options.fetch(:aliases,[]).map(&:to_s)
          pattern = Regexp.union([name] + aliases).source

          arguments.each do |argument|
            pattern << ' ' << case argument
                              when Symbol
                                '(' + ARG_FORMATS.fetch(argument).source + ')'
                              else
                                '(?:' + Regexp.union(argument).source + ')'
                              end
          end

          match(Regexp.new(pattern), method: name)

          commands[name] = {
            arguments: arguments,
            aliases:   aliases,
            summary:   options[:summary]
          }
        end