#							             		Ruby Tools										                                     	
#This program allows you to do a few things such as convert strings to upper and  	 
#lowercase. Have fun using it!																	 														 		
#Written by: Bulio. 																				 																		 
#						                        ©bulio 2005								                										



puts "Welcome to the multi-purpose program!\n Make a selection now."
puts "1.Convert a string to lowercase\n 2.Convert a string to uppercase"

sel = STDIN.gets.to_i #Gets user input, turns it into an integer.

if sel == 1 #If what they entered was 1, do this.
	puts "Enter your String to be converted now."
	line = STDIN.gets.chomp
	puts "Your string in lowercase: #{line.downcase}" #Use line.downcase to take line and make it all lowercase.
	puts "Hit enter to exit when done"
	gets
	exit() #Exit when user hits enter
	
	
elsif sel == 2
	puts "Enter your string that will be converted now"
	line = STDIN.gets.chomp
	puts "You string in uppercase: #{line.upcase}" #Same as above, only turns it to uppercase
	puts "Hit enter to quit when done"
	gets
	exit()
	
else
	puts "Invalid choice #{sel}. Try again" 
end

#Create the main class, where everything will be stored

class Main
	#Creates the program's intro
	def intro
		puts "Welcome to the character conversion program. Written by bulio."
		puts "\n\n 1.Convert a string to lowercase.\n 2.Convert a string to uppercase.\n Type quit to quit.\nMake a selection now"
		end
	#Create our input loops and such
	def input
		while user_input = STDIN.gets.chomp!
		case user_input
			when '1' then puts "Enter the string that will be converted to Lowercase now."
				line = STDIN.gets
				puts "Your string in Lowercase: #{line.downcase}"
			when '2' then puts "Enter the string that you would like to be converted to into Uppercase."
				line = STDIN.gets
				puts "The string in Uppercase: #{line.upcase}"
			when 'quit' 
			puts "Quitting now"
			exit
			else
				puts "Invalid selection #{user_input}"
				intro
				end
			end
		end	
end		

#Create the program
m = Main.new
m.intro
m.input