From: Rob Biedenharn <Rob@...>
Date: 2008-04-24T21:46:34+09:00
Subject: Re: FasterCSV.foreach lineno?

On Apr 24, 2008, at 7:55 AM, Bil Kleb wrote:

> OK, so I can't think my way out of a paper this morning.
>
> Can I access FasterCVS#lineno while inside a foreach?
>
> For example,
>
> $ cat << EOF > csv_file
> one
> two
> three
> EOF
>
> $ ruby -rubygems \
>  -e'require "fastercsv";FasterCSV.foreach("csv_file")\
>  {|r| puts "lineno somehow"}'
>
> Thanks,
> --
> Bil Kleb
> http://fun3d.larc.nasa.gov

Bil,

Since it looks like the answer to your first question is "No.", what  
if you defined:

class FasterCSV
   def self.foreach_with_lineno(path, options = Hash.new, &block)
     open(path, options) do |csv|
       csv.each {|line| block[line, csv.lineno]}
     end
   end
end

irb> FasterCSV.foreach_with_lineno("csv_file") {|r,l| puts "#{l}: #{r}"}
1: one
2: two
3: three
=> nil

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com