From: Tobias Reif <tobiasreif@...>
Date: 2001-11-30T05:51:08+09:00
Subject: [ruby-talk:26960] Re: short article draft for review

Dave Thomas wrote:

> Michael Neumann <neumann@s-direktnet.de> writes:
> 
>>You could here also use Symbols (:even) instead of Strings.
>>
> And perhaps a case statement


Thank you both!
... like that? anything else?

-----8<-----
def upto limit,modifier=:default
   case modifier
     when :even
       number = 2
       step   = 2
     when :odd
       number = 1
       step   = 2
     when :default
       number = 1
       step   = 1
   end
   while number <= limit
     yield number
     number += step
   end
end

upto 5 do |number|
   print number
end
print "
"
upto 5,:even do |number|
   print number
end
print "
"
upto 5,:odd  do |number|
   print number
end

# 12345
# 24
# 135
-----8<-----

Tobi




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Tobias Reif
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