From: Glenn Jackman <glennj@...>
Date: 2009-07-24T00:25:27+09:00
Subject: Re: splitting.............

At 2009-07-23 08:06AM, "Hunt Hunt" wrote:
>  Hi Friends,
>  
>  I have a file which information.txt which is like
>  
>  name,address,city,contact
>  abc,Newyork,HYU,345
>  xyz,Pittsurg,UYY,234
>  
>  
>  only theree line.
>  
>  Now I have to split name, address,city & contact with their associated
>  values.
>  
>  how am i supposed to do this?

What do you want the resulting data structure to look like?

This creates an array of hashes, and then a hash of arrays:

    filename = 'information.txt'
    f = File.open(filename)
    fields = f.gets.chomp.split(/,/)
    data = []
    while line = f.gets
      line.chomp!
      data << Hash[fields.zip(line.split(/,/))]
    end
    p data

    f.rewind
    fields = f.gets.chomp.split(/,/)
    data = Hash.new([])
    while line = f.gets
      line.chomp.split(/,/).each_with_index do |item, idx| 
        data[fields[idx]] += [item]
      end
    end
    p data
    f.close

Or, take Robert Schaaf's advice and parse the file with CSV if you don't
control how it's created:

    require 'csv'

    csv = CSV.open(filename, 'r')
    fields = csv.shift
    data = []
    # assume no empty lines in the file
    until (row = csv.shift).empty?
      data << Hash[fields.zip(row)]
    end
    csv.close
    p data

-- 
Glenn Jackman
    Write a wise saying and your name will live forever. -- Anonymous