From: Peter Bailey <pbailey@...>
Date: 2006-04-25T03:05:15+09:00
Subject: Parsing files and writing about them . . .

A number of you all helped me to get to the point of actually being able 
to write a RUBY script, period. Now, I'm trying to concatenate all that 
I've learned and put it into an iterative script. Here it is. It doesn't 
error out, but, it also doesn't do anything! It just executes. I do 
believe my regex is legitimate. I want it to parse postscript files and 
then pipe information about blank pages in those .ps files to other 
files, the ".pageinfo" files.

Thanks.

Dir.chdir("c:/scripts/ruby/temp")
psfiles = Dir.glob('*.ps')
  numberofblanks = []
  blankpages = []
psfiles.each do |psfile|
  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)
    numberofblanks.push($2)
    unless numberofblanks.empty?
      infofile = File.basename(psfile, '.ps')
      File.open("infofile + .pageinfo", "w") do |writetext|
        writetext << "Number of blanks in this PDF: 
#{numberofblanks.length}\n"
        << "Blank Pages in This PDF: #{blankpages.join(' ')}\n"
    end
  end
end

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