From: GianFranco Bozzetti <gf.bozzetti@...>
Date: 2010-04-02T23:40:13+09:00
Subject: Re: Fill a table in ruby


"Brk Anl" <banil86@yahoo.com> wrote in message 
news:104aef4810489fd18812714cd885f263@ruby-forum.com...
> Hi,
>
> I want to read the datas from a file and fill a table with them.
> All lines will be a new row for table. And the columns are for the
> variables of the class.
>
> I want to create an array as an object of a class for this. But i don't
> know how to do it.
>
> Class Abc
>  @a
>  @b
>  ....
>
> end
>
> a[100]=Abc.new()
>
> so for example a[0] will be the first row of the table and  a[0].a  will
> be the first column of the table
>
> i want to do sth like that.
>
> How can i do it? Or is there another way to fill a table in ruby?
> -- 
> Posted via http://www.ruby-forum.com/.
>

Use an array of structs as in the folloving snippet:
#
class Table
def initialize  # define table structure and array for data
    @template = Struct.new(:name, :age)
    @data = []
end # initialize

def add_row(_name, _age)
    s=@template.new(_name, _age)
    @data << s
end # add_row
def out_rows
    @data.each { |s| printf("%-10s %4d\n", s.name, s.age) }
end # out_rows

end # class Table

tbl = Table.new()     # create a table  and add some rows
tbl.add_row('frank', 40)
tbl.add_row('tina', 30)

tbl.out_rows()  # print the content of the table
exit(0)
__END__

###
hth gfb