doc/doc-scripts/JoinPS

   1 #!/usr/bin/perl
   2
   3 # Make the basic PostScript file for the Exim spec from the gcode file, then
   4 # join it together with the contents and the index, to make a single
   5 # PostScript file, suitable for double-sided printing.
   6
   7 sub blank_page {
   8 my($title) = shift @_;
   9 printf(OUT "%%%%Page: %s %d\nxpage\n\n", $title, $pagenumber++);
  10 }
  11
  12
  13 @roman = ("i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix", "x",
  14           "xi", "xii", "xiii", "xiv", "xv", "xvi", "xvii", "xviii", "xix");
  15
  16 $pagenumber = 1;
  17
  18 system("sgtops z-gcode -to z-ps") && die "sgtops run failed\n";
  19
  20 open(SPEC, "z-ps") || die "Can't open z-ps\n";
  21 open(CONTS, "zc-ps") || die "Can't open zc-ps\n";
  22 open(INDEX, "zi-ps") || die "Can't open zi-ps\n";
  23 open(OUT, ">spec.ps") || die "Can't open spec.ps\n";
  24
  25 # Copy spec headings etc.
  26
  27 while (<SPEC>)
  28   {
  29   last if (/^%%Page:/) ;
  30   print OUT;
  31   }
  32
  33 # Copy the first two pages - the title page, and its blank verso
  34
  35 for ($i = 1; $i < 3; $i++)
  36   {
  37   printf(OUT "%%%%Page: title%s %d\n", ($i == 1)? "" : "-verso", $pagenumber++);
  38   while (<SPEC>)
  39     {
  40     last if (/^%%Page:/) ;
  41     print OUT;
  42     }
  43   }
  44
  45 # Skip the contents heading
  46
  47 while (<CONTS>)
  48   {
  49   last if (/^%%Page:/) ;
  50   }
  51
  52 # Output the contents pages - fudge the roman numerals as we know there
  53 # won't be a vast number of them.
  54
  55 $subpagenumber = 0;
  56 while (!eof CONTS)
  57   {
  58   printf(OUT "%%%%Page: %s %d\n", $roman[$subpagenumber++], $pagenumber++);
  59   while (<CONTS>)
  60     {
  61     next if (/^%%Pages:/);
  62     next if (/^%%Trailer/);
  63     last if (/^%%Page:/) ;
  64     print OUT;
  65     }
  66   }
  67 printf(OUT "\n");
  68
  69 # If contents was an odd number of pages, insert a blank page
  70
  71 &blank_page("contents-pad") if ($pagenumber & 1) == 0;
  72
  73 # Copy the rest of the main file
  74
  75 $subpagenumber = 1;
  76
  77 while (!eof SPEC)
  78   {
  79   printf(OUT "%%%%Page: %d %d\n", $subpagenumber++, $pagenumber++);
  80   while (<SPEC>)
  81     {
  82     next if (/^%%Pages:/);
  83     next if (/^%%Trailer/);
  84     last if (/^%%Page:/) ;
  85     print OUT;
  86     }
  87   }
  88 printf(OUT "\n");
  89
  90 # If contents was an odd number of pages, insert a blank page
  91
  92 &blank_page("body-pad") if ($pagenumber & 1) == 0;
  93
  94 # Skip the index heading
  95
  96 while (<INDEX>)
  97   {
  98   last if (/^%%Page:/) ;
  99   }
 100
 101 # Copy the index pages
 102
 103 $subpagenumber = 1;
 104
 105 while (!eof INDEX)
 106   {
 107   printf(OUT "%%%%Page: I%d %d\n", $subpagenumber++, $pagenumber++);
 108   while (<INDEX>)
 109     {
 110     next if (/^%%Pages:/);
 111     next if (/^%%Trailer/);
 112     last if (/^%%Page:/) ;
 113     print OUT;
 114     }
 115   }
 116
 117 # Add final comments
 118
 119 printf(OUT "%%%%Trailer\n");
 120 printf(OUT "%%%%Pages: %d\n", $pagenumber-1);
 121
 122 # That's it
 123
 124 close(SPEC);
 125 close(CONTS);
 126 close(INDEX);
 127 close(OUT);
 128
 129 # End