From: Dave Thomas <dave@...>
Date: 2003-12-18T04:48:06+09:00
Subject: Re: paging (was Newbie questions)


On Dec 17, 2003, at 13:25, Thomas Adam wrote:
>
>> Interesting.  So there's apparantly no consistant way of finding a 
>> pager
>> program.
> It would be easy to do...
> Test for either:
>    $PAGER
> and the like...
> if they're defined use them, otherwise default to a generic one.

Here's the code I'm using in 'ri'. Will it work across the systems that 
folks use?

     for pager in [ ENV['pager'], "less", "more <" ].compact.uniq
       if system("#{pager} #{path}")
         paged = true
         break
       end
     end
     if !paged
       @options.use_stdout = true
       puts File.read(path)
     end

Cheers

Dave