On Feb 6, 8:36 am, Drew Olson <olso... / gmail.com> wrote:
> I think he wants to append this array with information each time he sees
> the same key, so modify your code like so:
>
> lines = DATA.readlines.map{ |line|
>   line.chomp.split( ';' )}
>
> lookup = {}
> lines.each{ |data|
>   key = data.find{ |value| /^E/ =~ value }
>   lookup[ key ] ||= []
>   lookup[ key ] << data
>
> }

Curses, I didn't read carefully enough. Right you are. (And, though
it's not clear from his example, he might not even need to split the
original line into arrays of pieces, but just keep the lines.)