From: Robert Klemme <shortcutter@...>
Date: 2011-03-12T18:46:58+09:00
Subject: Re: Array question.

On 11.03.2011 23:17, Catsquotl wrote:
> Hi,
> I have a csv file. #several really
> That file is fed to the @points variable (see below) when creating an
> instance of the class.
> I'd like b[5] to hold an array of all remaining records in the file left
> on that line.
> Now it just pushes the 5th record. I can add b[6] which will get the
> next record. But The number of records left vary....
>
> I am building my app slowly. i'd like to be able to get the same
> functionality somewhere in the middle also.
> as i have 3 fixed variables in my Acupunt class and 2that can have more
> than 1 value. I am guessing i have to look at a new approach here.
> ----------------------------------------------
> def set_punten
>     @punten=[]
>     File.open("#{@points}", "r").each {|e|

The string interpolation is pointless here.  If @points may be anything 
you can do @points.to_s which is still more efficient in case it is 
actually a String.

Btw, you do not close the file handle properly!  It's easier doing

File.foreach @points do |e|
...
end

>       e.chomp!
>       b=e.split(";")
>       @punten.push(Acupunt.new(b[0],b[1],b[2],b[3],b[4],b[5]))

@punten.push(Acupunt.new(b[0],b[1],b[2],b[3],b[4],b[5..-1]))

>     }
> end
> -----------------------
> any suggestions?

You could also use CSV class from standard library to get rid of the 
need for parsing.  See "ri CSV", e.g.

CSV.foreach(@points, :col_sep => ';') do |b|
   ...
end

Kind regards

	robert

-- 
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