From: Dossy <dossy@...>
Date: 2003-01-09T02:15:27+09:00
Subject: Re: prompt

On 2003.01.09, TOTO <zhoujing@comp.nus.edu.sg> wrote:
> Is there a Ruby idiom to do prompting? For example,
> 
> ../rm.rb: remove `t'? y
> 
> ?
> 
> I find it rather troublesome to do that. I have to use something like:
> 
> def prompt(file)
>    print "#{$0}: remove `#{file}'? "
>    decision = STDIN.getc
>    STDIN.getc       # Get rid of the ending "\n"
>    return decision
> end
> 
> And it is not that safe in fact. If the user enter "Yes\n", the program will crash.
> 
> Can someone suggest a better solution?

def prompt(file)
   print "#{$0}: remove `#{file}'? "
   STDIN.readline.chomp
end

-- Dossy

-- 
Dossy Shiobara                       mail: dossy@panoptic.com 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)