[9882b55] | 1 | #!/usr/bin/perl -- # -*- Perl -*- |
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| 2 | |
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| 3 | # this needs some cleanup... |
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| 4 | |
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| 5 | my $PSTOTEXT = "pstotext"; |
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| 6 | |
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| 7 | my $pdf = shift @ARGV; |
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| 8 | |
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| 9 | my $index = ""; |
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| 10 | my $inindex = 0; |
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| 11 | open (F, "$PSTOTEXT $pdf |"); |
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| 12 | while (<F>) { |
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| 13 | if (/^<\/index/) { |
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| 14 | $index .= $_; |
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| 15 | $inindex = 0; |
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| 16 | } |
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| 17 | $inindex = 1 if /^<index/; |
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| 18 | |
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| 19 | if ($inindex) { |
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| 20 | $index .= $_ if /^\s*</; |
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| 21 | } |
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| 22 | } |
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| 23 | |
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| 24 | my $cindex = ""; |
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| 25 | while ($index =~ /^(.*?)((<phrase role=\"pageno\">.*?<\/phrase>\s*)+)/s) { |
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| 26 | $cindex .= $1; |
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| 27 | $_ = $2; |
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| 28 | $index = $'; # ' |
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| 29 | |
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| 30 | my @pages = m/<phrase role=\"pageno\">.*?<\/phrase>\s*/sg; |
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| 31 | |
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| 32 | # Expand ranges |
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| 33 | if ($#pages >= 0) { |
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| 34 | my @mpages = (); |
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| 35 | foreach my $page (@pages) { |
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| 36 | my $pageno = &pageno($page); |
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| 37 | if ($pageno =~ /^([0-9]+)[^0-9]([0-9]+)$/) { # funky - |
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| 38 | for (my $count = $1; $count <= $2; $count++) { |
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| 39 | push (@mpages, "<phrase role=\"$pageno\">$count</phrase>"); |
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| 40 | } |
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| 41 | } else { |
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| 42 | push (@mpages, $page); |
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| 43 | } |
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| 44 | } |
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| 45 | @pages = sort rangesort @mpages; |
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| 46 | } |
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| 47 | |
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| 48 | # Remove duplicates... |
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| 49 | if ($#pages > 0) { |
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| 50 | my @mpages = (); |
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| 51 | my $current = ""; |
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| 52 | foreach my $page (@pages) { |
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| 53 | my $pageno = &pageno($page); |
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| 54 | if ($pageno ne $current) { |
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| 55 | push (@mpages, $page); |
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| 56 | $current = $pageno; |
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| 57 | } |
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| 58 | } |
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| 59 | @pages = @mpages; |
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| 60 | } |
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| 61 | |
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| 62 | # Collapse ranges... |
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| 63 | if ($#pages > 1) { |
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| 64 | my @cpages = (); |
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| 65 | while (@pages) { |
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| 66 | my $count = 0; |
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| 67 | my $len = &rangelen($count, @pages); |
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| 68 | if ($len <= 2) { |
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| 69 | my $page = shift @pages; |
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| 70 | push (@cpages, $page); |
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| 71 | } else { |
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| 72 | my $fpage = shift @pages; |
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| 73 | my $lpage = ""; |
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| 74 | while ($len > 1) { |
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| 75 | $lpage = shift @pages; |
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| 76 | $len--; |
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| 77 | } |
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| 78 | my $fpno = &pageno($fpage); |
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| 79 | my $lpno = &pageno($lpage); |
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| 80 | $fpage =~ s/>$fpno</>${fpno}-$lpno</s; |
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| 81 | push (@cpages, $fpage); |
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| 82 | } |
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| 83 | } |
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| 84 | @pages = @cpages; |
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| 85 | } |
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| 86 | |
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| 87 | my $page = shift @pages; |
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| 88 | $page =~ s/\s*$//s; |
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| 89 | $cindex .= $page; |
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| 90 | while (@pages) { |
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| 91 | $page = shift @pages; |
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| 92 | $page =~ s/\s*$//s; |
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| 93 | $cindex .= ", $page"; |
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| 94 | } |
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| 95 | } |
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| 96 | $cindex .= $index; |
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| 97 | |
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| 98 | print "$cindex\n"; |
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| 99 | |
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| 100 | sub pageno { |
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| 101 | my $page = shift; |
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| 102 | |
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| 103 | $page =~ s/^<phrase.*?>//; |
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| 104 | $page =~ s/^<link.*?>//; |
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| 105 | |
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| 106 | return $1 if $page =~ /^([^<>]+)/; |
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| 107 | return "?"; |
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| 108 | } |
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| 109 | |
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| 110 | sub rangesort { |
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| 111 | my $apno = &pageno($a); |
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| 112 | my $bpno = &pageno($b); |
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| 113 | |
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| 114 | # Make sure roman pages come before arabic ones, otherwise sort them in order |
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| 115 | return -1 if ($apno !~ /^\d+/ && $bpno =~ /^\d+/); |
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| 116 | return 1 if ($apno =~ /^\d+/ && $bpno !~ /^\d+/); |
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| 117 | return $apno <=> $bpno; |
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| 118 | } |
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| 119 | |
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| 120 | sub rangelen { |
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| 121 | my $count = shift; |
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| 122 | my @pages = @_; |
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| 123 | my $len = 1; |
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| 124 | my $inrange = 1; |
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| 125 | |
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| 126 | my $current = &pageno($pages[$count]); |
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| 127 | while ($count < $#pages && $inrange) { |
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| 128 | $count++; |
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| 129 | my $next = &pageno($pages[$count]); |
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| 130 | if ($current + 1 eq $next) { |
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| 131 | $current = $next; |
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| 132 | $inrange = 1; |
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| 133 | $len++; |
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| 134 | } else { |
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| 135 | $inrange = 0; |
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| 136 | } |
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| 137 | } |
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| 138 | |
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| 139 | return $len; |
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| 140 | } |
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