From: James Edward Gray II <james@...>
Date: 2009-11-04T07:38:18+09:00
Subject: Re: Faster CSV,need help with logic

On Nov 3, 2009, at 4:26 PM, Mmcolli00 Mom wrote:

>>
>> data = FCSV.parse( DATA.read, :headers           => true,
>>                               :header_converters => :symbol,
>>                               :return_headers    => true )
>
> I really like the logic in this code. It makes good but when I try  
> this
> on my CSV file I am getting no results. Do you know where DATA in the
> above code comes from?

DATA is a special Ruby shortcut for easy scripting.  Inside a Ruby  
source file you can start a line with the magic __END__ tag to end the  
code and start the data section.  Ruby will open an IO object, point  
it at the data you put below __END__, and stick that object in the  
constant DATA for easy access.

I bet you can go back and read the email where I used it and it will  
make more sense now.  See how I just dumped the CSV under my __END__  
tag?  That's what the code was reading.

You could replace DATA.read in your own code with File.read("path/to/ 
file.csv").  Or you could just put the path where I stuck DATA.read,  
but call FCSV.read() instead of FCSV.parse().

I hope that helps.

James Edward Gray II