psutils/psmerge.pl

   1 @PERL@
   2 # psmerge: merge PostScript files produced by same application and setup
   3 # usage: psmerge [-oout.ps] [-thorough] file1.ps file2.ps ...
   4 #
   5 # Copyright (C) Angus J. C. Duggan 1991-1995
   6 # See file LICENSE for details.
   7
   8 $prog = ($0 =~ s=.*/==);
   9
  10 while ($ARGV[0] =~ /^-/) {
  11    $_ = shift;
  12    if (/^-o(.+)/) {
  13       if (!close(STDOUT) || !open(STDOUT, ">$1")) {
  14          print STDERR "$prog: can't open $1 for output\n";
  15          exit 1;
  16       }
  17    } elsif (/^-t(horough)?$/) {
  18       $thorough = 1;
  19    } else {
  20       print STDERR "Usage: $prog [-oout] [-thorough] file...\n";
  21       exit 1;
  22    }
  23 }
  24
  25 $page = 0;
  26 $first = 1;
  27 $nesting = 0;
  28
  29 @header = ();
  30 $header = 1;
  31
  32 @trailer = ();
  33 $trailer = 0;
  34
  35 @pages = ();
  36 @body = ();
  37
  38 @resources = ();
  39 $inresource = 0;
  40
  41 while (<>) {
  42    if (/^%%BeginFont:/ || /^%%BeginResource:/ || /^%%BeginProcSet:/) {
  43       $inresource = 1;
  44       push(@resources, $_);
  45    } elsif ($inresource) {
  46       push(@resources, $_);
  47       $inresource = 0 if /^%%EndFont/ || /^%%EndResource/ || /^%%EndProcSet/;
  48    } elsif (/^%%Page:/ && $nesting == 0) {
  49       $header = $trailer = 0;
  50       push(@pages, join("", @body)) if @body;
  51       $page++;
  52       @body = ("%%Page: ($page) $page\n");
  53    } elsif (/^%%Trailer/ && $nesting == 0) {
  54       push(@trailer, $_);
  55       push(@pages, join("", @body)) if @body;
  56       @body = ();
  57       $trailer = 1;
  58       $header = 0;
  59    } elsif ($header) {
  60       push(@trailer, $_);
  61       push(@pages, join("", @body)) if @body;
  62       @body = ();
  63       $trailer = 1;
  64       $header = 0;
  65    } elsif ($trailer) {
  66       if (/^%!/ || /%%EOF/) {
  67          $trailer = $first = 0;
  68       } elsif ($first) {
  69          push(@trailer, $_);
  70       }
  71    } elsif (/^%%BeginDocument/ || /^%%BeginBinary/ || /^%%BeginFile/) {
  72       push(@body, $_);
  73       $nesting++;
  74    } elsif (/^%%EndDocument/ || /^%%EndBinary/ || /^%%EndFile/) {
  75       push(@body, $_);
  76       $nesting--;
  77    } else {
  78       print $_ if $print;
  79    }
  80 }
  81
  82 print @trailer;
  83
  84 exit 0;
  85 @END@