note
Tux
<p>The pyhton stuff installed but failed due to missing dependency. I didn't want to pursue that.</p>
<p>The wkhtmltopdf solution works quite well. The perl module around it sucks, as it does not offer <i>any</i> features beyond the program itself. I would have hoped for it to support streaming (piped input, piped output), but all it does is pass the arguments to the system command. I can do that myself.</p>
<p>[mod://Pod::Html] shows its age. Not well thought through, sadly. Even if one uses <c>local *STDOUT;</c>, there is no way to get its output caught. This module also doe not support piping/streaming.</p>
<p>I ended up with the code below (feel free to use, alter or comment on), where I still note a few drawbacks …</p>
<ul>
<li>Page wraps are unclean. On many page breaks the top half of a line is on the end of one page, the bottom half is on the next</li>
<li>CSS like <c>text-align: justify;</c> doesn't work very well.</li>
</ul>
<readmore><code>
#!/pro/bin/perl
use 5.14.1;
use warnings;
sub usage
{
my $err = shift and select STDERR;
say "usage: pod2pdf [--output=file.pdf] [input]";
exit $err;
} # usage
use Getopt::Long qw(:config bundling);
my $opt_o;
my $opt_t;
my $opt_c;
GetOptions (
"help|?" => sub { usage (0); },
"o|output=s" => \$opt_o,
"t|title=s" => \$opt_t,
"c|css=s" => \$opt_c,
) or usage (1);
use Pod::Html;
use File::Temp qw( tempdir ); # Pod::Html doesn't support piped output :( :(
use HTML::TreeBuilder;
my $td = tempdir (CLEANUP => 1);
my %tf = map { $_ => "$td/pod2pdf.$_" } "html", "pdf";
my $html;
{ pod2html "--outfile=$tf{html}", @ARGV;
# Cleanup leftover junk from Pod::Html :(
-f $_ && unlink $_ for map { "$_/pod2htmd.tmp" } ".", $ENV{TMPDIR} // "/tmp";
open my $fh, "<", $tf{html};
$html = join "" => <$fh>;
close $fh;
}
my $css = join "" => <DATA>;
if ($opt_c && open my $fh, "<", $opt_c) {
$css = join "" => <$fh>;
close $fh;
}
my $tree = HTML::TreeBuilder->new;
$tree->parse_content ($html);
foreach my $head ($tree->look_down (_tag => "head")) {
my $style = HTML::Element->new ("style");
$style->attr (type => "text/css");
$style->push_content ($css);
$head->push_content ($style);
}
my $pdf = do {
open my $fh, ">", $tf{html} or die "$tf{html}: $!\n";
print $fh $tree->as_HTML (undef, " ", {});
close $fh;
my @cmd = qw( wkhtmltopdf --quiet --load-error-handling ignore );
$opt_t and push @cmd, "--title", $opt_t;
push @cmd, $tf{html}, $tf{pdf};
system @cmd;
open $fh, "<", $tf{pdf} or die "$tf{pdf}: $!\n";
join "" => <$fh>;
};
if ($opt_o) {
open my $fh, ">", $opt_o or die "$opt_o: $!\n";
print $fh $pdf;
close $fh;
}
else {
print $pdf;
}
__END__
body, p, ul, ol, h1, h2, h3 {
font-family: "DejaVu Sans", "Nimbus Sans L",
Helvetica, sans-serif; }
body { color: Black;
background: White; }
a:link { color: Purple; }
a:visited { color: Maroon; }
pre, tt, code {
font-family: "DejaVu Sans Mono", "Liberation Mono",
LettrGothic12BT, "Lucida Console",
mono, monospace; }
p, ul, ol { text-align: left; }
h1 { color: Maroon; }
h2 { color: Green; }
h3 { color: Navy; }
</code></readmore>
<!-- Node text goes above. Div tags should contain sig only -->
<div class="pmsig"><div class="pmsig-200365">
<br />
Enjoy, Have FUN! H.Merijn
</div></div>
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