Class: Net::IRC::Message::ModeParser

Inherits:
Object
  • Object
show all
Defined in:
lib/net/irc/message/modeparser.rb

Constant Summary collapse

ONE_PARAM_MASK = 
0
ONE_PARAM = 
1
ONE_PARAM_FOR_POSITIVE = 
2
NO_PARAM = 
3

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ModeParser

Returns a new instance of ModeParser.



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# File 'lib/net/irc/message/modeparser.rb', line 8

def initialize
	@modes          = {}
	@op_to_mark_map = {}
	@mark_to_op_map = {}

	# Initialize for ircd 2.11 (RFC2812+)
	set(:CHANMODES, 'beIR,k,l,imnpstaqr')
	set(:PREFIX, '(ov)@+')
end

Instance Method Details

#mark_to_op(mark) ⇒ Object 



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# File 'lib/net/irc/message/modeparser.rb', line 18

def mark_to_op(mark)
	mark.empty? ? nil : @mark_to_op_map[mark.to_sym]
end

#parse(arg) ⇒ Object 



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# File 'lib/net/irc/message/modeparser.rb', line 43

def parse(arg)
	params = arg.kind_of?(Net::IRC::Message) ? arg.to_a : arg.split(" ")
	params.shift

	ret = {
		:positive => [],
		:negative => [],
	}

	current = ret[:positive]
	until params.empty?
		s = params.shift
		s.scan(/./).each do |c|
			c = c.to_sym
			case c
			when :+
				current = ret[:positive]
			when :-
				current = ret[:negative]
			else
				case @modes[c]
				when ONE_PARAM_MASK,ONE_PARAM
					current << [c, params.shift]
				when ONE_PARAM_FOR_POSITIVE
					if current.equal?(ret[:positive])
						current << [c, params.shift]
					else
						current << [c, nil]
					end
				when NO_PARAM
					current << [c, nil]
				else
					if @op_to_mark_map[c]
						current << [c, params.shift]
					end
				end
			end
		end
	end

	ret
end

#set(key, value) ⇒ Object 



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# File 'lib/net/irc/message/modeparser.rb', line 22

def set(key, value)
	case key
	when :PREFIX
		if value =~ /\A\(([a-zA-Z]+)\)(.+)\z/
			@op_to_mark_map = {}
			key, value = Regexp.last_match[1], Regexp.last_match[2]
			key.scan(/./).zip(value.scan(/./)) {|pair|
				@op_to_mark_map[pair[0].to_sym] = pair[1].to_sym
			}
			@mark_to_op_map = @op_to_mark_map.invert
		end
	when :CHANMODES
		@modes = {}
		value.split(",").each_with_index do |s, kind|
			s.scan(/./).each {|c|
				@modes[c.to_sym] = kind
			}
		end
	end
end