file.rb

File.open("words.txt") do |f|
f.each do|word| 
word=word.to_s.chomp.downcase
p word
word.each_char do |l| #extrating letters
puts "\t Current letter: #{l}"
puts case l
	when ('a'||'b'||'c') then 2
	when ('d'||'e'||'f') then 3
	when ('g'||'h'||'i') then 4
	when ('j'||'k'||'l') then 5
	when ('m'||'n'||'o') then 6
	when ('p'||'q'||'r'||'s') then 7
	when ('t'||'u'||'v') then 8
	else 9
	end
	end
	end

end
=begin
word.txt contains text like: 
---Start of word.txt---
Cappuccino
Chocolate
Cinnamon
Coffee
Latte
Vanilla
---End of word.txt---
All what I'm doing is extracting each word and displaying telephonic numerical for each letter of corresponding word. 
It is giving wrong equivalents. Dunno why. 
=end