From: beny 18241 <beny18241@...>
Date: 2009-12-20T03:20:33+09:00
Subject: Re: simple one

Hi

i used both methods and they works (thanks for that), but i have ine 
more question (both methods are affected)

see my code (example)

---
#!/usr/bin/ruby

    def ask(prompt)
        loop do
            print prompt, ' '
            $stdout.flush
            s = gets
            exit if s == nil
            s.chomp!
            if s == 'y' or s == 'yes'
                return true
            elsif s == 'n' or s == 'no'
                return false
            else
                $stderr.puts "Please answer yes or no."
            end
        end
    end

ask(' => ')
---


i Saved it as a file.rb, as there is a small part of my bigger scirpt , 
i wanted to add argument, so i'am running it with argument(which is used 
later in my script):

./file.rb file.xml

and i recive
 =>  Please answer yes or no.
 =>  Please answer yes or no.
 =>  Please answer yes or no.
 =>  Please answer yes or no.
 =>  Please answer yes or no.
 =>  Please answer yes or no.
 =>  Please answer yes or no.
...

I know that I should clear input or something like that, but i dont know 
how , I' ve tried many ways.

Please help

Regards
beny18241

Simeon Willbanks wrote:
> I've written a simple program which I believe meets your requirements. 
> I've changed the text a bit, but I hope the code is helpful.
> 
> Simeon
> 
> class Choice
>   def initialize
>     @choices = ['y', 'N']
>     @instructions = 'make a choice '+ @choices.join('/')
>     @response = 'you have choosen %s'+"\n"+'Goodbye'
>   end
>   def ask()
>     puts @instructions
>     STDOUT.flush
>     @input = gets.chomp
>     self.respond()
>   end
>   def respond()
>     if @choices.include?(@input)
>       puts @response % @input
>       STDOUT.flush
>     else
>       self.ask()
>     end
>   end
> end
> 
> c = Choice.new
> c.ask()

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