From: "Eric I." <rubytraining@...>
Date: 2008-06-05T02:24:12+09:00
Subject: Re: Beginner: Read file

On Jun 4, 1:08 pm, Justin To <te...@hotmail.com> wrote:
> report = File.open('ReportTxt.txt', 'r') do |L|
>    while line = L.gets
>
>   report.getc.chr
>
>     end
> end
>
> I'm quite lost...what I'm trying to do is read a file character by
> character
> until I've read every character.

Hi Justin,

A couple of things.  You've combined two distinct ways of using the
call to open.  You either capture the return value and use that to
read and close the file, *OR* you provide a block with the IO variable
a reference to the file.  In the latter case, when you reach the end
of the block, the file is closed automatically.

Second, the variable "L" is a constant.  I'm not sure you want a
constant.

Below are two bits of code that do what you're trying to do, each
using one of the distinct ways to use the open call.

====

File.open('ReportTxt.txt', 'r') do |l|
  while c = l.getc
    puts c.chr
  end
end


l = File.open('ReportTxt.txt', 'r')
while c = l.getc
  puts c.chr
end
l.close

====

Do you mind my asking what resource(s) you're using to learn Ruby?

I hope that helps,

Eric

====

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