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94 lines
2.2 KiB
94 lines
2.2 KiB
3 years ago
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#!/usr/local/bin/perl
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#
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# Sample external converter for htdig 3.1.4 or later, to convert PDFs
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# using Adobe Acrobat 3's acroread -toPostScript option on UNIX systems.
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# (Use it in place of conv_doc.pl if you have acroread but not pdftotext.)
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# Written by Gilles Detillieux.
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#
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# Usage: (in htdig.conf)
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#
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# external_parsers: application/pdf->text/html /usr/local/bin/acroconv.pl
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#
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# This is a pretty quick and dirty implementation, but it does seem to
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# give functionality equivalent to the now defunct htdig/PDF.cc parser.
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# I'm not a Perl expert by any stretch of the imagination, so the code
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# could probably use a lot of optimization to make it work better.
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#
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$watch = 0;
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$bigspace = 0;
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$putspace = 0;
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$putbody = 1;
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system("ln $ARGV[0] $ARGV[0].pdf; acroread -toPostScript $ARGV[0].pdf");
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open(INP, "< $ARGV[0].ps") || die "Can't open $ARGV[0].ps\n";
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print "<HTML>\n<head>\n";
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while (<INP>) {
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if (/^%%Title: / && $putbody) {
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s/^%%Title: \((.*)\).*\n/$1/;
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s/\\222/'/g;
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s/\\267/*/g;
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s/\\336/fi/g;
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s/\\([0-7]{3})/pack(C, oct($1))/eig;
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s/\\([0-7]{2})/pack(C, oct($1))/eig;
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s/\\([0-7])/pack(C, oct($1))/eig;
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s/\\[nrtbf]/ /g;
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s/\\(.)/$1/g;
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s/&/\&\;/g;
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s/</\<\;/g;
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s/>/\>\;/g;
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print "<title>$_</title>\n";
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print "</head>\n<body>\n";
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$putbody = 0;
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} elsif (/^BT/) {
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$watch = 1;
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} elsif (/^ET/) {
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$watch = 0;
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if ($putspace) {
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print "\n";
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$putspace = 0;
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}
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} elsif ($watch) {
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if (/T[Jj]$/) {
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s/\)[^(]*\(//g;
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s/^[^(]*\((.*)\).*\n/$1/;
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s/\\222/'/g;
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s/\\267/*/g;
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s/\\336/fi/g;
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s/\\([0-7]{3})/pack(C, oct($1))/eig;
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s/\\([0-7]{2})/pack(C, oct($1))/eig;
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s/\\([0-7])/pack(C, oct($1))/eig;
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s/\\[nrtbf]/ /g;
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s/\\(.)/$1/g;
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if ($bigspace) {
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s/(.)/$1 /g;
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}
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s/&/\&\;/g;
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s/</\<\;/g;
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s/>/\>\;/g;
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if ($putbody) {
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print "</head>\n<body>\n";
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$putbody = 0;
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}
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print "$_";
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$putspace = 1;
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} elsif (/T[Ddm*]$/ && $putspace) {
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print "\n";
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$putspace = 0;
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} elsif (/Tc$/) {
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$bigspace = 0;
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if (/^([3-9]|[1-9][0-9]+)\..*Tc$/) {
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$bigspace = 1;
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}
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}
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}
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}
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if ($putbody) {
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print "</head>\n<body>\n";
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}
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print "</body>\n</HTML>\n";
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close(INP);
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system("rm -f $ARGV[0].pdf $ARGV[0].ps");
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