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#! /usr/bin/perl
use Getopt::Long;
use IPC::Open2;
use warnings;
use strict;
Getopt::Long::Configure ("bundling");
my $pdf2ps = 'pdftops';
my $pscrop = 'psnup2.pl -s1 -l1';
my $psresize = 'psresize';
my $psnup = 'psnup';
my $psbook = 'psbook';
my $ps2pdf = 'ps2pdf';
my $tmpdir = '/tmp';
my $papersize;
my $nup = 1;
my $margin = 1;
#TODO: units
my $crop;
my $book;
GetOptions( "nup|n=i" => \$nup,
"1" => sub { $nup = 1 },
"2" => sub { $nup = 2 },
"4" => sub { $nup = 4 },
"8" => sub { $nup = 8 },
"crop|c" => \$crop,
"book|b" => \$book,
"papersize|p=s" => \$papersize,
"margin|m=s" => \$margin );
die "I can handle only one file at the same time :P"
if $#ARGV > 0;
die "How should I put a non-positive number of pages per sheet?"
if $nup <= 0;
unless (defined $papersize) {
$papersize = `paperconf` or die "Can't guess papersize";
chomp $papersize;
}
for (my $n = $nup; $n > 1; $n /= 2) {
die "nup should be a power of two"
unless $n % 2 == 0;
}
my $filename = $ARGV[0];
$filename = "-" unless defined $filename;
my $filename2 = $filename;
$filename2 = "(stdin)" if $filename eq "-";
my ($mresize, $mcrop, $mnup) = (0,0,0);
if (defined $crop) {
$mresize = 0;
if (not defined $book && $nup > 1) {
$mcrop = $margin/2;
$mnup = $mcrop;
} else {
$mcrop = $margin;
$mnup = 0;
}
} else {
if (not defined $book && $nup > 1) {
$mresize = $margin/2;
$mnup = $mresize;
} else {
$mresize = $margin;
$mnup = 0;
}
}
open(FILE, $filename)
or die "Can't read `$filename'";
my $filetype;
my $fstline = <FILE>;
if (defined $fstline && $fstline =~ /%!PS.*/) {
$filetype = "PS";
} elsif (defined $fstline && $fstline =~ /%PDF.*/) {
$filetype = "PDF";
} else {
die "Can't recognize the type of `$filename2'";
}
# auxiliary files, to remove
my @auxfiles;
# auxiliary file descriptors, to close
my @auxfds;
if ($filename eq "-") {
# Need to copy the whole input to an auxiliary file, since
# conversion from pdf to ps requires random access to the data
# TODO: only for pdfs
$filename = "$tmpdir/pdftool-stdin-" . int(rand 2**16) . lc ".$filetype";
open(AUXFD, '>', "$filename")
or die "Can't read write into `$filename'";
push @auxfiles, "$filename";
# cat > $filename
seek STDIN, 0, 0;
while (<FILE>) {
print AUXFD $_;
}
close(AUXFD);
}
close(FILE);
# Convert to ps, or read the input file
if ($filetype eq "PDF") {
open *PSFILE, '|-', "$pdf2ps", "$filename", "-"
# open2 PSFILE, '<&STDIN', "$pdf2ps $filename -"
or die "Error with `$pdf2ps $filename -'";
} else {
open *PSFILE, '<', "$filename"
or die "Can't open `$filename'";
}
push @auxfds, fileno PSFILE;
# Resize file to our papersize
open2 *PSRESIZE, "<&PSFILE", "$psresize", "-p$papersize"
or die "Error with `$psresize -p$papersize'";
# pscrop
*PSCROP = *PSRESIZE;
# psbook
*PSBOOK = *PSCROP;
# psnup
# TODO: sometimes unecessary
open2 *PSNUP, "<&PSBOOK", "$psnup", "-p$papersize", "-m$mnup", "-$nup"
or die "Error with `$psnup -p$papersize -m$mnup -$nup'";
# TODO: not always stdout
open2 ">&STDOUT", "<&PSNUP", "$ps2pdf -sPAPERSIZE=$papersize - -"
or die "Error with `$ps2pdf -sPAPERSIZE=$papersize - -'";
#flush;
print STDERR "ok\n";
close STDIN;
close STDOUT;
close PSNUP;
close PSBOOK;
close PSCROP;
close PSRESIZE;
close PSFILE;
# close auxiliary filehandles
#map {close $_} @auxfds;
# delete auxiliary files
unlink @auxfiles;
#TODO: better do forget stdin, I guess
#if ($filename eq "-" && $filetype eq "PDF") {
#}
#if ($filetype eq "PDF") {
# $command .= "$pdf2ps $filename - | ";
#} else {
# $command .= "cat $filename | ";
#}
#
#
##$command .= "$psresize -p$papersize /tmp/paf.ps | ";
## useless, since the argument of $pscrop has to be seekable
#
#if (defined $crop) {
# $command .= "$pscrop -m$margin /tmp/paf.ps | ";
#} else {
# $command .= "cat /tmp/paf.ps | ";
#}
#
#$command .= "$psnup -p$papersize -m${margin}cm -$nup | ";
#
#$command .= "$psbook | " if defined $book;
#
#$command .= "$ps2pdf -sPAPERSIZE=$papersize - - ";
#
#
#$command .= "> /tmp/pouf.pdf";
#
#print "$command", "\n";
#system $command;
#system ($pdfviewer, "/tmp/pouf.pdf");
|
