From: James Edward Gray II <james@...>
Date: 2006-03-29T09:05:06+09:00
Subject: Re: [ANN] Article: An Exercise in Metaprogramming with Ruby

On Mar 24, 2006, at 2:28 PM, James Edward Gray II wrote:

> On Mar 24, 2006, at 1:38 PM, rubyhacker@gmail.com wrote:
>
>> I failed to post this link before, so here it is now:
>>
>>   http://www.devsource.com/article2/0,1895,1928561,00.asp
>
> That's so darn cool, I think I'm just going to have to add it to  
> FasterCSV...  ;)

Developer at play:

$ irb -r lib/faster_csv.rb
 >> class FullName < Struct.new(:first, :last)
 >>   def initialize( first, last, other = Hash.new )
 >>     super(first, last)
 >>     @middle, @suffix = other.values_at(:middle, :suffix)
 >>   end
 >>   attr_accessor :middle, :suffix
 >> end
=> nil
 >> names = [ FullName.new("Santa", "Clause"),
?>           FullName.new("James", "Gray", :middle =>  
"Edward", :suffix => "II"),
?>           FullName.new("Easter", "Bunny") ]
=> [#<struct FullName first="Santa", last="Clause">, #<struct  
FullName first="James", last="Gray">, #<struct FullName  
first="Easter", last="Bunny">]
 >> csv = FasterCSV.dump(names)
=> "class,FullName\n@middle,@suffix,first=,last=\n,,Santa,Clause 
\nEdward,II,James,Gray\n,,Easter,Bunny\n"
 >> puts csv
class,FullName
@middle,@suffix,first=,last=
,,Santa,Clause
Edward,II,James,Gray
,,Easter,Bunny
=> nil
 >> reloaded = FasterCSV.load(csv)
=> [#<struct FullName first="Santa", last="Clause">, #<struct  
FullName first="James", last="Gray">, #<struct FullName  
first="Easter", last="Bunny">]
 >> reloaded.find { |name| name.first == "James" }.middle
=> "Edward"

That's using the development version of FasterCSV.  Thanks for the  
idea Hal!  ;)

James Edward Gray II