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PORuby/Poppler PDF Table of Contents/Index
 

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  1. PORuby/Poppler PDF Table of Contents/Index
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    <p>Have been trying to obtain the TOC/Index for PDF files using Ruby and Poppler. I would really appreciate any suggestions or hints in the right direction I am successful at getting the major Chapters, but not the sub headings under each chapter. ex</p> <pre><code>1.Chapter 1 --Part of Chap1 -- Part of Chap 1 2.Chapter 2 -- Part of Chap2 -- Part of Chap2 </code></pre> <p>I am able to obtain <strong>Chapter 1</strong> and <strong>Chapter 2</strong> but not the <strong>part of Chap1/chap 2</strong> when using ruby and poppler. I might be thinking about this the wrong way, but from what I understood , if a child exist for <code>Poppler::IndexIter</code> , I would assume the same methods used to obtain Chapter 1 and Chapter 2 would work for the child as well, however this does not appear to be the case. Tried to use action.title on the child class, however it appears to be nil. The Pdf i am currently using shows up in all PDF readers with sub chapters.</p> <p><a href="http://ruby-gnome2.sourceforge.jp/hiki.cgi?Poppler%3A%3AIndexIter#open%3F" rel="nofollow">http://ruby-gnome2.sourceforge.jp/hiki.cgi?Poppler%3A%3AIndexIter#open%3F</a></p> <pre><code>#!/usr/bin/env ruby require "rubygems" require "poppler" if ARGV.size &lt; 1 puts "usage: #{$0} input.pdf" exit(-1) end input = ARGV.shift input_uri = "file://#{File.expand_path(input)}" doc = Poppler::Document.new(input_uri) indexer = Poppler::IndexIter.new(doc) author = doc.n_pages index = doc.index_iter pages = doc.n_pages #puts " #{doc.metadata}\n" puts "This is the number of pages #{pages}\n" #Prints out Table of Contents each chater def walk_index(indexer) indexer.each do |i| chaps =i.action.title puts chaps child = i.child workk_index(child) if child.nil? == false end end def work_index(child) #puts child child.each do |h| puts h.action.title end end walk_index(indexer) </code></pre>
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    1. COWell it appears that I am not the only one having this problem and it might be something thats wrong with Ruby/Poppler itself -->http://sourceforge.net/tracker/index.php?func=detail&aid=3350148&group_id=53614&atid=470969
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