ASCII Menu in Ruby, is it possible?

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

Hello Team,

Is there a way in Ruby to create primitive ASCII menus?
At this point I am shying away from GUI as everything outthere, in the GUI
world is too....
I just want to know if I can create simple menus of the type:

1 - Enter 1 and press Enter to continue
2 - Enter 2 or X and press Enter to exit
3 - Etc.

Thank you

 

[Jason Roelofs]

Did you try anything or just jump straight here to ask?

puts "1. Do something here"
puts "2. I want this"
puts "3. Hmm"

x = gets

case x
when "1"
...
when "2"
...
when "3"
...
end

Unless you're not including enough detail for a proper answer, a quick
jaunt through any Ruby book/tutorial/website would get you at least
this far.

Jason

 

[Justin Collins]

Hello Team,

Is there a way in Ruby to create primitive ASCII menus?
At this point I am shying away from GUI as everything outthere, in the GUI
world is too....
I just want to know if I can create simple menus of the type:

1 - Enter 1 and press Enter to continue
2 - Enter 2 or X and press Enter to exit
3 - Etc.

Thank you

Sure you can.

For example:

def menu
loop do
puts "1. Do something", "2. Do something else", "3. Nevermind"

input = gets.strip

case input
when "1"
puts "Did something"
when "2"
puts "Did something else"
when "3"
puts "Bye!"
return
else
puts "Invalid option: #{input}"
end
end
end

menu

-Justin

 

[Eleanor McHugh]

Hello Team,

Is there a way in Ruby to create primitive ASCII menus?
At this point I am shying away from GUI as everything outthere, in
the GUI
world is too....
I just want to know if I can create simple menus of the type:

1 - Enter 1 and press Enter to continue
2 - Enter 2 or X and press Enter to exit
3 - Etc.

Thank you

You can find an example of doing this with the termios library by
following the link in my sig and reading the Camping presentation. For
more advanced text-based GUIs you could look at ncurses and highline.


Ellie

Eleanor McHugh
Games With Brains
http://slides.games-with-brains.net

 

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

On Thu, Feb 19, 2009 at 3:12 PM, Eleanor McHugh <

You can find an example of doing this with the termios library by following
the link in my sig and reading the Camping presentation. For more advanced
text-based GUIs you could look at ncurses and highline.


Ellie

Eleanor McHugh
Games With Brains
http://slides.games-with-brains.net

Eleanor,

Thank you for your help. It is highly appreciated!

 

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

Sure you can.

For example:

def menu
loop do
puts "1. Do something", "2. Do something else", "3. Nevermind"

input = gets.strip

case input
when "1"
puts "Did something"
when "2"
puts "Did something else"
when "3"
puts "Bye!"
return else puts "Invalid option: #{input}"
end end
end

menu

-Justin

Dear Jason,

YES, I did first performed a google search, which is this:

"ruby" "menu" "ASCII menu"

and the above gave me this:
http://www.google.com/search?hl=en&q="ruby"+"menu"+"ASCII+menu"&start=30&sa=N

As a routine, I religiously perform first a good search. I also traverse the
gems repository. Then I come to the forum.
That been said, I appreciate your answer and justin answer. I truly
appreciate your help.
It was far from my mind using gets to perform this task.

Again, thank you!

 

[James Gray]

Is there a way in Ruby to create primitive ASCII menus?
At this point I am shying away from GUI as everything outthere, in
the GUI
world is too....
I just want to know if I can create simple menus of the type:

1 - Enter 1 and press Enter to continue
2 - Enter 2 or X and press Enter to exit
3 - Etc.

Highline can build these menus for you. See examples here:

http://github.com/JEG2/highline/blob/664a1f9d9d7e850d2e72c87ed8594ee910367624/examples/menus.rb

James Edward Gray II

 

[Igor Pirnovar]

If you are planning to do some data entry checking on Linux platforms
you may need to set the STDOUT.sync = true. I am including a simple
program to show you the difference. Indeed on MS Windows you will not
experience any difference if you comment out "STDOUT.sync = true"; on
Linux if buffering is turned on you will!

STDOUT.sync = true

#!/usr/bin/env ruby

STDOUT.sync = true # (cross-platform compatibility issue)

loop do
print "\n\n\tPLEASE SELECT:\n\n"
print "\t\t(1) ..... enter one number\n"
print "\t\t(2) ..... enter two numbers "
print "(no seoarators like commas, ...)\n"
print "\t\t(Q) ..... Quit\n\n"
print "\tPlease select one of the above: "
answer = gets
printf "You've selected %s\n", answer

case answer.chomp
when "1"
num = nil
while num !~ /\d+.*[^\d]*/
print "Please enter a single number: "
num = gets
num.chomp! # note exclamation mark (!)
if num.split(/\s+/).size != 1|| num !~ /\d+/
puts "You should have entered a single number not [#{num}]"
print "Press <Enter> to continue "
any = gets
else
puts "Thank you for [#{num}]."
end
end
when "2"
num = nil
while num !~ /\d+[\s,]+\d+/
print "Please enter two numbers: "
num = gets
num.chomp! # note exclamation mark (!)
if num.split(/\s+/).size != 2 || num !~ /\d+\s+\d+/
puts "You must enter two numbers number, not [#{num}]"
print "Press <Enter> to continue "
any = gets
else
puts "Thank you for [#{num}]."
end
end
when /q|Q/
exit
else
print "Illegal selection; Please try again! "
print "Please enter a single number:\n"
print "Press <Enter> to continue "
any = gets
end
end

 

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

If you are planning to do some data entry checking on Linux platforms
you may need to set the STDOUT.sync = true. I am including a simple
program to show you the difference. Indeed on MS Windows you will not
experience any difference if you comment out "STDOUT.sync = true"; on
Linux if buffering is turned on you will!

STDOUT.sync = true

#!/usr/bin/env ruby

STDOUT.sync = true # (cross-platform compatibility issue)

loop do
print "\n\n\tPLEASE SELECT:\n\n"
print "\t\t(1) ..... enter one number\n"
print "\t\t(2) ..... enter two numbers "
print "(no seoarators like commas, ...)\n"
print "\t\t(Q) ..... Quit\n\n"
print "\tPlease select one of the above: "
answer = gets
printf "You've selected %s\n", answer

case answer.chomp
when "1"
num = nil
while num !~ /\d+.*[^\d]*/
print "Please enter a single number: "
num = gets
num.chomp! # note exclamation mark (!)
if num.split(/\s+/).size != 1|| num !~ /\d+/
puts "You should have entered a single number not [#{num}]"
print "Press <Enter> to continue "
any = gets
else
puts "Thank you for [#{num}]."
end
end
when "2"
num = nil
while num !~ /\d+[\s,]+\d+/
print "Please enter two numbers: "
num = gets
num.chomp! # note exclamation mark (!)
if num.split(/\s+/).size != 2 || num !~ /\d+\s+\d+/
puts "You must enter two numbers number, not [#{num}]"
print "Press <Enter> to continue "
any = gets
else
puts "Thank you for [#{num}]."
end
end
when /q|Q/
exit
else
print "Illegal selection; Please try again! "
print "Please enter a single number:\n"
print "Press <Enter> to continue "
any = gets
end
end

I truly appreciate the abundance of suggestions from everyone. I will try
every suggestion and pick one!

Thank you