From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2008-07-21T22:24:43+09:00
Subject: Re: Simple program with a simple(?) error -- what's wrong?

On Jul 20, 4:35 pm, Siep Korteling <s.kortel...@gmail.com> wrote:
> reuben doetsch wrote:
> > The scope of indx is wrong, when you call it outside the function, it is
> > only accesible witin that scope, the outer scope and so you have you do
> > this
>
> > def foo
> >     indx=0
> > ....
> > end
>
> (...)
> Or replace "indx" with "@indx".
> Regards,
> Siep
>
> --
> Posted viahttp://www.ruby-forum.com/.

Thanks Reuben and Siep for you responses.

The following worked perfectly for creating sequentially numbered
lines: as "def" was invoked successively with various arguments:

@indx=0
def disp(s)
    @index += 1
    printf( [snip]

However, "index=0" inside the def, despite subsequent incrementing,
had the dual faults of assigning the same index to every line and
being inaccessible outside the "def".

I had also tried "if !defined?(indx)" somehow,  but that was useless
across multiple invocations of "def".

Again,  thanks to you both for your responses.