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|
#!/usr/bin/env perl
#
# psjoin - concatenate PostScript files
#
# version 0.2, 2002-07-18
# version 0.3, 2003-11-30
# version 0.31, 2013-10-20
#
# versions up to 0.3 by Tom Sato <VEF00200@nifty.ne.jp>, http://homepage3.nifty.com/tsato/
# versions from 0.31 by Reuben Thomas <rrt@sc3d.org>
use strict;
use warnings;
use Getopt::Long;
my $version = 0.31;
sub usage {
my ($exit_code) = @_;
print STDERR <<END;
Usage: psjoin [OPTION...] FILENAME...
Concatenate PostScript files
--even, -a force each file to take an even number of pages
--save, -s try to close unclosed save operators
--strip, -p do not strip prolog or trailer from input files
--help, -h print this help, then exit
--version,-V print version information and exit
END
exit $exit_code;
}
my $force_even = 0;
my $force_save = 0;
my $dont_strip = 0;
my $save = "save %psjoin\n";
my $restore = "restore %psjoin\n";
my ($help_flag, $version_flag);
GetOptions(
"even|a" => \$force_even,
"save|s" => \$force_save,
"strip|p" => \$dont_strip,
"help|h" => \$help_flag,
"version|V" => \$version_flag,
) or usage(1);
if ($help_flag) {
usage(0);
} elsif ($version_flag) {
print "psjoin (version $version)\n";
print "(c) Tom Sato <VEF00200\@nifty.ne.jp> and Reuben Thomas <rrt\@sc3d.org>\n";
exit 0;
}
if ($force_save) {
$save = "/#psjoin-save# save def %psjoin\n";
$restore = "#psjoin-save# restore %psjoin\n";
}
my (@prolog, $prolog_inx, @trailer, @comments, @pages);
if ($dont_strip) {
$prolog_inx = 9999;
$prolog[$prolog_inx] = "% [ psjoin: don't strip ]\n";
$trailer[$prolog_inx] = "% [ psjoin: don't strip ]\n";
} else {
for (my $i = 0; $i <= $#ARGV; $i++) {
open(IN, $ARGV[$i]) || die "$0: can't open \"$ARGV[$i]\" ($!)";
my $in_comment = 1;
my $in_prolog = 1;
my $in_trailer = 0;
$comments[$i] = "";
$prolog[$i] = "";
$trailer[$i] = "";
$pages[$i] = 0;
while (<IN>) {
next if /^%%BeginDocument/ .. /^%%EndDocument/;
if ($in_comment) {
next if /^%!PS-Adobe-/;
next if /^%%Title/;
next if /^%%Pages/;
next if /^%%Creator/;
$in_comment = 0 if /^%%EndComments/;
$comments[$i] .= $_;
next;
} elsif ($in_prolog) {
if (/^%%Page:/) {
$in_prolog = 0;
} else {
$prolog[$i] .= $_;
next;
}
}
$in_trailer = 1 if /^%%Trailer/;
if ($in_trailer) {
$trailer[$i] .= $_;
next;
}
$pages[$i]++ if /^%%Page:/;
}
close(IN);
if ($prolog[$i]) {
for (my $j = 0; $j < $i; $j++) {
if ($prolog[$j] eq $prolog[$i]) {
$pages[$j] += $pages[$i];
last;
}
}
}
}
my $largest = 0;
$prolog_inx = 0;
for (my $i = 0; $i <= $#ARGV; $i++) {
my $size = length($prolog[$i]) * $pages[$i];
if ($largest < $size) {
$largest = $size;
$prolog_inx = $i;
}
}
}
print <<END;
%!PS-Adobe-3.0
%%Title: @ARGV
%%Creator: psjoin $version
%%Pages: (atend)
END
print $comments[$prolog_inx];
print "\n$prolog[$prolog_inx]";
for (my $i = 0; $i <= $#ARGV; $i++) {
$prolog[$i] =~ s/^%%/% %%/;
$prolog[$i] =~ s/\n%%/\n% %%/g;
$trailer[$i] =~ s/^%%/% %%/;
$trailer[$i] =~ s/\n%%/\n% %%/g;
}
my $total_pages = 0;
for (my $i = 0; $i <= $#ARGV; $i++) {
print "\n% [ psjoin: file = $ARGV[$i] ]\n";
if ($prolog[$i] ne $prolog[$prolog_inx]) {
print "% [ psjoin: Prolog/Trailer will be inserted in each page ]\n";
} else {
print "% [ psjoin: common Prolog/Trailer will be used ]\n";
}
my $in_comment = 1 if !$dont_strip;
my $in_prolog = 1 if !$dont_strip;
my $in_trailer = 0;
my $saved = 0;
my $pages = 0;
open(IN, $ARGV[$i]) || die "$0: can't open \"$ARGV[$i]\" ($!)";
while (<IN>) {
if (/^%%BeginDocument/ .. /^%%EndDocument/) {
# s/^(%[%!])/% \1/;
print $_;
} else {
if ($in_comment) {
$in_comment = 0 if /^%%EndComments/;
} elsif ($in_prolog) {
if (/^%%Page:/) {
$in_prolog = 0;
} else {
next;
}
}
$in_trailer = 1 if !$dont_strip && /^%%Trailer/;
next if $in_trailer;
if (/^%%Page:/) {
if ($saved) {
print $trailer[$i];
print $restore;
$saved = 0;
}
$pages++;
$total_pages++;
print "\n";
print "%%Page: ($i-$pages) $total_pages\n";
if ($prolog[$i] ne $prolog[$prolog_inx]) {
print $save;
print $prolog[$i];
$saved = 1;
} elsif ($force_save) {
print $save;
}
} else {
s/^(%[%!])/% $1/;
print $_;
}
}
}
close(IN);
if ($force_even && $pages % 2 != 0) {
$pages++;
$total_pages++;
print <<END;
%%Page: ($i-E) $total_pages
% [ psjoin: empty page inserted to force even pages ]
showpage
END
}
print $trailer[$i] if $saved;
print $restore if $saved || $force_save;
}
print "\n%%Trailer\n";
print $trailer[$prolog_inx];
print "\n%%Pages: $total_pages\n%%EOF";
|
