From: Peter Bailey <pbailey@...>
Date: 2006-05-09T22:00:17+09:00
Subject: Problem with 2nd File.Read in small script.

Hello,
Can someone look at my code below? I have a RUBY debugger that indicates 
to me that when I get to the 2nd "File.read" below, all of the previous 
variables are wiped away. I'd like to know why that is. I need to do 2 
searches, 2 scans, in the same files. It doesn't seem to like my 2nd 
pass. As a result, nothing past my 2nd File.read occurs.

Thank you.

--------------------------------------------------------------------------------
require 'FileUtils'
Dir.chdir("c:/scripts/ruby/temp")
psfiles = Dir.glob('*.ps')

blankpages = []

psfiles.each do |psfile|
 infofile = File.basename(psfile, '.ps')
  File.open(psfile, "a") do |writepage|
    File.read(psfile).scan(/\%\%Pages: (\d{1,5})\n/) do
     totalnumberofpages = $1
     #If the page count is odd, then, add a blank to make it an even 
page count.
     if (totalnumberofpages.to_i % 2) !=0 then
       writepage << "\%\%Blank page from Asura\nshowpage\n"
       blankpages = totalnumberofpages.to_i + 1.to_i
     end
    end

  File.read(psfile).scan(/\%\%Page: [(\d)()]+ 
(\d{1,5})\n\%\%PageBoundingBox:
  \d{1,5} \d{1,5} \d{1,5} \d{1,5}\n\%\%PageOrientation:/) do
    blankpages.push($1)
    File.open(infofile + ".pageinfo", "w") do |writetext|
      writetext << "Number of blankpages in this PDF: 
#{blankpages.length}\n" <<
      "Blank Pages in This PDF: #{blankpages.join(' ')}\n"
    end
  end
  end
end

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