From: Lyle Johnson <lyle@...>
Date: 2008-05-15T03:25:28+09:00
Subject: Re: PDF::Writer and rubygems

On Wed, May 14, 2008 at 12:47 PM, Bill Woodward <wpwood@gmail.com> wrote:

> I then update it to use rubygems by changing the 'require' section of
> the code to:
>
> require 'rubygems'
> gem 'pdf-writer'
>
> but when I do that, I get an error:
>
> /home/wpwood/Desktop/pdf_writer-1.1.8/demo/hello.rb:14: uninitialized
> constant PDF (NameError)
>
> on the line:
>
> pdf = PDF::Writer.new
>
> I'm fairly new to Ruby, and new to trying to use gems directly, and it's
> certainly possible that I'm doing something wrong.  So, can anyone tell
> me what I'm doing wrong?

You were close. You need to say:

    require 'rubygems'

to load the RubyGems runtime support, then:

    gem 'pdf-writer'

to activate that gem, and finally,

    require 'pdf/writer'

to require that specific module (for the PDF::Writer class definition).

Hope this helps,

Lyle