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List:       ruby-talk
Subject:    exiting of a block
From:       Emmanuel Touzery <emmanuel.touzery () wanadoo ! fr>
Date:       2003-05-26 6:30:28
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Hello,

	it's a newbie question...
	i wanted to do something like:

result1 = [1, 2, 3].find { |e|
	if e == 2
		return true
	else
		return false
	end
}
(with several if/else one in each other rather than one big condition, for 
code readability)

but I realised that 'return' does not apply to a block, but only to a 
function. it's a bit (actually very) un-intuitive for me, but anyway, is 
there a nicer solution than doing my current:

item = [1, 2, 3].find { |e|
	result = false
	if e == 2
		result = true
	else
		result = false
	end
	result
}

for reference, here is my real code. I'm searching the current TV program at 
showTime from a DB of tv programs i fetched from the net. a program for sure 
has a start time (time), but not necessarily an end time (if it's the last tv 
program on the web page, i can't know).

	# now find the current program for this
	# channel.
	programsForChannel.find { |program|
		result = false
		if program.time <= showTime
			if program.endTime
				# there is a endtime.
				# are we now before this end?
				if program.endTime > showTime
					result = true
				end
			else
				# program has no registered
				# end.
 				result = true
			end
		end
		result
	}

any help appreciated!

emmanuel
-- 
"If there is any kind of God, it's not in you or in me,
but in the space between us"
	-- Celine, "Before Sunrise"
(It's not about what you do, it's about what you give.)

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