From: Paul van Delst <Paul.vanDelst@...>
Date: 2007-03-10T08:40:05+09:00
Subject: Re: "Goto line" function?

Helgitomas Gislason wrote:
> Ok, I've read through the forum but I haven't got my answer. If a value
> in my program is true, I want my program to go back to a line like this:
> 
> (Example of the program)
> 
> 1.  puts ' '
> 2.  puts ' '
> 3.  puts '****************************'
> 4.  puts '** (Rules of the program) **'
> 5.  puts '****************************'
> 6.  puts ' '
> 7.  puts 'Ohh, hello there! What are you named many names?'
> 8.
> 9.  names = gets.chomp
> 10.
> 11. if names == '2'
> 12.   puts ' '
> 13.   puts 'Are you named two names?'
> 14.   puts ' '
> 15.   answer = gets.chomp
> 16.   if answer == 'yes'
> 17.     (the program continues)
> 18.
> 19. BUT if answer == 'no'
> 20.       goto.line.7 (And skip the rules, just restart it and begin
> from line 7.)
> 
> What is the command? I know it's not "goto.line.X" but what is it? "back
> to line.X"? "goto.lineX"? What is the command?

Addressing just the loop/goto issue, how about summat like:

#!/usr/bin/env ruby
done=false
until done
   puts ' '
   puts ' '
   puts '****************************'
   puts '** (Rules of the program) **'
   puts '****************************'
   puts ' '
   puts 'Ohh, hello there! What are you named many names?'
   names = gets.chomp
   if names == '2'
     puts ' '
     puts 'Are you named two names?'
     puts ' '
     answer = gets.chomp
     done = true if answer == 'yes'
   end
end
#This is where "the program continues"
puts 'the end'


This gives me the output:

lnx:scratch : blah.rb


****************************
** (Rules of the program) **
****************************

Ohh, hello there! What are you named many names?
2

Are you named two names?

no


****************************
** (Rules of the program) **
****************************

Ohh, hello there! What are you named many names?
2

Are you named two names?

yes
the end




cheers,

paulv

-- 
Paul van Delst             Ride lots.
CIMSS @ NOAA/NCEP/EMC               Eddy Merckx