Hi,
Fortunately the "goto" has been deprecated. It always results in spaghetti code. Check out 'case' control structure instead. You may want to think through the program flow so that you have each possibility and a default case for unanticipated situation. You will need to wrap your code inside the case structure. It's mo' better solution than coding ad hoc.
i = 3
case i
when 1, 2..5
print "1..5\n"
when 6..10
print "6..10\n"
end
Regards,
Joe
···
----- Original Message ----
From: Paul van Delst <Paul.vanDelst@noaa.gov>
To: ruby-talk ML <ruby-talk@ruby-lang.org>
Sent: Friday, March 9, 2007 6:40:05 PM
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
____________________________________________________________________________________
Finding fabulous fares is fun.
Let Yahoo! FareChase search your favorite travel sites to find flight and hotel bargains.
http://farechase.yahoo.com/promo-generic-14795097