doc/doc-docbook/PageLabelPDF

   1 #! /usr/bin/perl -w
   2
   3 # $Cambridge: exim/doc/doc-docbook/PageLabelPDF,v 1.1 2006/02/01 11:01:01 ph10 Exp $
   4
   5 # Program to add page label information to the PDF output file. I have not
   6 # found a way of automatically discovering the number of frontmatter pages
   7 # in the document. It is therefore screwed in as 12 in the next statement.
   8
   9 $add = "/PageLabels << /Nums [ 0 << /S /r >>\n" .
  10        "                      12 << /S /D >>\n" .
  11        "                     ]\n" .
  12        "            >>\n";
  13
  14 $extra = length $add;
  15
  16 $before = 0;
  17 while (<>)
  18   {
  19   print;
  20   $before += length($_);
  21   last if $_ =~ "^<< /Type /Catalog";
  22   }
  23
  24 print $add;
  25
  26 while (<>)
  27   {
  28   print;
  29   last if $_ =~ /^xref$/;
  30   }
  31
  32 while (<>)
  33   {
  34   if (/^(\d{10}) (.*)/)
  35     {
  36     my($was) = $1;
  37     my($rest) = $2;
  38     printf "%010d $rest\n", $was + (($was > $before)? $extra : 0);
  39     }
  40   elsif (/^startxref/)
  41     {
  42     print;
  43     $_ = <>;
  44     if (/^(\d+)/)
  45       {
  46       print $1 + $extra, "\n";
  47       }
  48     else
  49       {
  50       print;
  51       }
  52     }
  53   else
  54     {
  55     print;
  56     }
  57   }
  58
  59 # End
  60
  61