From: Markus <markus@...>
Date: 2004-09-03T04:50:34+09:00
Subject: Re: array of objects within an object



> I am storing an array of objects within another object, but am not
> sure how to print the values of the array out.  When I do an
> Port.inspect, it gives me something like this...:

If you are dealing with modest sized, non-recursive structures, you can
throw together something like this:

class Object
    def pretty(indent = '')
        if instance_variables.length > 0
            self.class.to_s+":\n"+(instance_variables.collect { |v|
                indent+v+':
'+instance_variable_get(v).pretty(indent+'    ')
                }.join("\n"))
          else
            self.class.to_s
          end
        end
    end

class Numeric
    def pretty(indent = '')
        to_s
        end
    end

class String
    def pretty(indent = '')
        inspect
        end
    end

class Array
    def pretty(indent = '')
        super + "[\n"+
            collect{ |v|
                '  '+indent+v.pretty(indent+'    ')
                }.join(",\n") + "\n"+
            "  " + indent+"]"
        end
    end

class My_class
    attr_accessor :test,:aa
    def initialize
        @test = "goo"
        @aa = [nil,true,8]
        end
    end

print ["test",7,My_class.new].pretty,"\n"


Not "production quality" but quick & easy for debugging purposes, and
easy to extend (and, to some extent, self-extending).

-- MarkusQ