From: Peter Bailey <pbailey@...>
Date: 2009-06-25T03:18:57+09:00
Subject: Re: How do I get an integer from an array?

Roger Pack wrote:
> Peter Bailey wrote:
>> Yes, if it do pages.to_s, I get [["78"]].
> 
> Looks like you want pages[0][0].to_i or what not then.
> =r

Yup. That did it. Thank you very much, Roger. Now, I have to admit, I've 
never, ever seen that double array counter notation. [0][0]. That's 
totally weird to me. But, it works!

Dir.chdir("N:/infoconpdf")
file = "ehs-X7917735.pdf"
pages = `pdfinfo #{file}`
pages = pages.scan(/^Pages:[ ]{2,99}([0-9]+)/)
pages = pages[0][0].to_i
1.upto(pages) do |n|
  puts n
end

I got:
1
2
3
4
5
6
7...
78
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