From: Hal Fulton <hal9000@...>
Date: 2004-05-25T10:50:28+09:00
Subject: Re: pp and (my) sstruct

Tanaka Akira wrote:
> In article <40B29029.4080108@hypermetrics.com>,
>   Hal Fulton <hal9000@hypermetrics.com> writes:
> 
> 
>>Hmm, what if I want an inspect (for those who don't use pp), but I
>>want it "pretty" for those who do?
> 
> 
> Define pretty_print and alias inspect pretty_print_inspect.


Thanks very much for this reply. Always a pleasure to get advice
from the expert.

However, 1) I don't understand this and 2) it isn't working for me.

I am doing:

     klass.class_eval do
       # ...
       define_method(:pretty_print) do
         str = "#<#{self.class}:"
         table.each {|item| str << " #{item}=#{self.send(item)}" }
         str + ">"
       end
       alias inspect pretty_print_inspect
       #...
     end

But when I do a pp of a SuperStruct, I get a blank line out.
And if I remove the pp library and call p, it complains that
pretty_print_inspect is not defined. How could this work without
"require 'pp'"?


Thank you for any clarification.

Hal Fulton