[1445] | 1 | #!/usr/bin/perl -w
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| 2 |
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| 3 | ###########################################################################
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| 4 | #
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[2032] | 5 | # gsConvert.pl -- convert documents to HTML or TEXT format
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[1445] | 6 | #
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| 7 | # A component of the Greenstone digital library software
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| 8 | # from the New Zealand Digital Library Project at the
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| 9 | # University of Waikato, New Zealand.
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| 10 | #
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[3013] | 11 | # Copyright (C) 1999-2002 New Zealand Digital Library Project
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[1445] | 12 | #
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| 13 | # This program is free software; you can redistribute it and/or modify
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| 14 | # it under the terms of the GNU General Public License as published by
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| 15 | # the Free Software Foundation; either version 2 of the License, or
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| 16 | # (at your option) any later version.
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| 17 | #
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| 18 | # This program is distributed in the hope that it will be useful,
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| 19 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 20 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 21 | # GNU General Public License for more details.
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| 22 | #
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| 23 | # You should have received a copy of the GNU General Public License
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| 24 | # along with this program; if not, write to the Free Software
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| 25 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 26 | #
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| 27 | ###########################################################################
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| 28 |
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| 29 | # gsConvert.pl converts documents in a range of formats to HTML or TEXT
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[2755] | 30 | # by exploiting third-party programs. The sources of these are usually found
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| 31 | # in the $GSDLHOME/packages directory, and the executables should live in
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| 32 | # $GSDLHOME/bin/$GSDLOS (which is on the search path).
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[1445] | 33 | #
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[3013] | 34 | # Currently, we can convert the following formats by using external
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| 35 | # conversion utilities:
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| 36 | # Microsoft Word (versions 2,6,7 [==95?], 8[==97?], 9[==2000?]), RTF,
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| 37 | # Adobe PDF, PostScript, MS PowerPoint (95 and 97), and MS Excel (95 and 97).
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[2032] | 38 | #
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[3013] | 39 | # We can try to convert any file to text with a perl implementation of the
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| 40 | # UNIX strings command.
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| 41 | #
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[2032] | 42 | # We try to convert Postscript files to text using "gs" which is often on
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[2755] | 43 | # *nix machines. We fall back to performing weak text extraction by using
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| 44 | # regular expressions.
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[1445] | 45 |
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| 46 | BEGIN {
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| 47 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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| 48 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
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| 49 | }
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| 50 |
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| 51 | use parsargv;
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| 52 | use util;
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| 53 | use Cwd;
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| 54 | use File::Basename;
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| 55 |
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[2755] | 56 | # Are we running on WinNT or Win2000 (or later)?
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| 57 | my $is_winnt_2000=eval {require Win32; return (Win32::IsWinNT()); return 0;};
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| 58 | if (!defined($is_winnt_2000)) {$is_winnt_2000=0;}
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[1445] | 59 |
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[3350] | 60 | my $use_strings;
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[3720] | 61 | my $pdf_complex;
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[4103] | 62 | my $pdf_nohidden;
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[3720] | 63 | my $pdf_zoom;
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| 64 | my $pdf_ignore_images;
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[10451] | 65 | my $pdf_allow_images_only;
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[10282] | 66 | my $windows_scripting;
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[3350] | 67 |
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[1445] | 68 | sub print_usage
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| 69 | {
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[1970] | 70 | print STDERR "\n";
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| 71 | print STDERR "gsConvert.pl: Converts documents in a range of formats to html\n";
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| 72 | print STDERR " or text using third-party programs.\n\n";
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| 73 | print STDERR " usage: $0 [options] filename\n";
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[3400] | 74 | print STDERR " options:\n\t-type\tdoc|dot|pdf|ps|ppt|rtf|xls\t(input file type)\n";
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[2755] | 75 | print STDERR "\t-errlog\t<filename>\t(append err messages)\n";
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[17195] | 76 | print STDERR "\t-output\tauto|html|text|pagedimage_jpg|pagedimage_gif|pagedimage_png\t(output file type)\n";
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[2755] | 77 | print STDERR "\t-timeout\t<max cpu seconds>\t(ulimit on unix systems)\n";
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[3720] | 78 | print STDERR "\t-use_strings\tuse strings to extract text if conversion fails\n";
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[10282] | 79 | print STDERR "\t-windows_scripting\tuse windows script when converting Microsoft Word and PPT via VB script\n";
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[3720] | 80 | print STDERR "\t-pdf_complex\tuse complex output when converting PDF to HTML\n";
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[4103] | 81 | print STDERR "\t-pdf_nohidden\tDon't attempt to extract hidden text from PDF files\n";
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[3720] | 82 | print STDERR "\t-pdf_ignore_images\tdon't attempt to extract images when\n";
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| 83 | print STDERR "\t\tconverting PDF to HTML\n";
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[10451] | 84 | print STDERR "\t-pdf_allow_images_only\tallow images only (continue even if no text is present when converting to HTML)\n";
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[3720] | 85 | print STDERR "\t-pdf_zoom\tfactor by which to zoom PDF (only useful if\n";
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| 86 | print STDERR "\t\t-pdf_complex is set\n";
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[1445] | 87 | exit(1);
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| 88 | }
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| 89 |
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[2755] | 90 | my $faillogfile="";
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[3538] | 91 | my $timeout=0;
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[1445] | 92 |
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| 93 | sub main
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| 94 | {
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| 95 | my (@ARGV) = @_;
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[3538] | 96 | my ($input_type,$output_type,$verbose);
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[1960] | 97 |
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[1445] | 98 | # read command-line arguments
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| 99 | if (!parsargv::parse(\@ARGV,
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[3400] | 100 | 'type/(doc|dot|pdf|ps|ppt|rtf|xls)/', \$input_type,
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[2755] | 101 | '/errlog/.*/', \$faillogfile,
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[17194] | 102 | 'output/(auto|html|text|pagedimage).*/', \$output_type,
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[1692] | 103 | 'timeout/\d+/0',\$timeout,
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[10282] | 104 | 'verbose/\d+/0', \$verbose,
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[3720] | 105 | 'use_strings', \$use_strings,
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[10282] | 106 | 'windows_scripting',\$windows_scripting,
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[3720] | 107 | 'pdf_complex', \$pdf_complex,
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[9482] | 108 | 'pdf_ignore_images', \$pdf_ignore_images,
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[10451] | 109 | 'pdf_allow_images_only', \$pdf_allow_images_only,
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[4103] | 110 | 'pdf_nohidden', \$pdf_nohidden,
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[3720] | 111 | 'pdf_zoom/\d+/2', \$pdf_zoom
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| 112 | ))
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[1445] | 113 | {
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| 114 | print_usage();
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| 115 | }
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[12704] | 116 |
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[1445] | 117 | # Make sure the input file exists and can be opened for reading
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| 118 | if (scalar(@ARGV!=1)) {
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| 119 | print_usage();
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| 120 | }
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[1928] | 121 |
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[1445] | 122 | my $input_filename = $ARGV[0];
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| 123 | if (!-r $input_filename) {
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| 124 | print STDERR "Error: unable to open $input_filename for reading\n";
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| 125 | exit(1);
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| 126 | }
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| 127 |
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| 128 | # Deduce filenames
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| 129 | my ($tailname,$dirname,$suffix)
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[2241] | 130 | = File::Basename::fileparse($input_filename, "\\.[^\\.]+\$");
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| 131 | my $output_filestem = &util::filename_cat($dirname, "$tailname");
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[1445] | 132 |
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| 133 | if ($input_type eq "")
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| 134 | {
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[2241] | 135 | $input_type = lc (substr($suffix,1,length($suffix)-1));
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[1445] | 136 | }
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| 137 |
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| 138 | # Change to temporary working directory
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| 139 | my $stored_dir = cwd();
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| 140 | chdir ($dirname) || die "Unable to change to directory $dirname";
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[10357] | 141 |
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[1445] | 142 | # Select convert utility
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| 143 | if (!defined $input_type) {
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| 144 | print STDERR "Error: No filename extension or input type defined\n";
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| 145 | exit(1);
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| 146 | }
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[3400] | 147 | elsif ($input_type eq "doc" || $input_type eq "dot") {
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[1445] | 148 | print &convertDOC($input_filename, $output_filestem, $output_type);
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| 149 | print "\n";
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| 150 | }
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[1684] | 151 | elsif ($input_type eq "rtf") {
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| 152 | print &convertRTF($input_filename, $output_filestem, $output_type);
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| 153 | print "\n";
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| 154 | }
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[1445] | 155 | elsif ($input_type eq "pdf") {
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| 156 | print &convertPDF($dirname, $input_filename, $output_filestem, $output_type);
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| 157 | print "\n";
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| 158 | }
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| 159 | elsif ($input_type eq "ps") {
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| 160 | print &convertPS($input_filename, $output_filestem, $output_type);
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| 161 | print "\n";
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| 162 | }
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[2977] | 163 | elsif ($input_type eq "ppt") {
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| 164 | print &convertPPT($input_filename, $output_filestem, $output_type);
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| 165 | print "\n";
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| 166 | }
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[2991] | 167 | elsif ($input_type eq "xls") {
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| 168 | print &convertXLS($input_filename, $output_filestem, $output_type);
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| 169 | print "\n";
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| 170 | }
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[1445] | 171 | else {
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| 172 | print STDERR "Error: Unable to convert type '$input_type'\n";
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| 173 | exit(1);
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| 174 | }
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| 175 |
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| 176 | # restore to original working directory
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| 177 | chdir ($stored_dir) || die "Unable to return to directory $stored_dir";
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| 178 |
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| 179 | }
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| 180 |
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| 181 | &main(@ARGV);
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| 182 |
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| 183 |
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| 184 |
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[2241] | 185 | # Document-type conversion functions
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[1445] | 186 | #
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| 187 | # The following functions attempt to convert documents from their
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| 188 | # input type to the specified output type. If no output type was
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| 189 | # given, then they first attempt HTML, and then TEXT.
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| 190 | #
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| 191 | # Each returns the output type ("html" or "text") or "fail" if no
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| 192 | # conversion is possible.
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| 193 |
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| 194 | # Convert a Microsoft word document
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| 195 |
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| 196 | sub convertDOC {
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| 197 | ($input_filename, $output_filestem, $output_type) = @_;
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| 198 |
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[1654] | 199 | # Many .doc files are not in fact word documents!
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| 200 | my $realtype = &find_docfile_type($input_filename);
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| 201 |
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[1734] | 202 | if ($realtype eq "word6" || $realtype eq "word7" || $realtype eq "word8") {
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[1654] | 203 | return &convertWord678($input_filename, $output_filestem, $output_type);
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| 204 | } elsif ($realtype eq "rtf") {
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| 205 | return &convertRTF($input_filename, $output_filestem, $output_type);
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| 206 | } else {
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| 207 | return &convertAnything($input_filename, $output_filestem, $output_type);
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| 208 | }
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| 209 | }
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| 210 |
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| 211 | # Convert a Microsoft word 6/7/8 document
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| 212 |
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| 213 | sub convertWord678 {
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| 214 | ($input_filename, $output_filestem, $output_type) = @_;
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| 215 |
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[1445] | 216 | my $success = 0;
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[16435] | 217 | if (!$output_type || ($output_type =~ m/html/i)){
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[10282] | 218 | if ($windows_scripting) {
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| 219 | $success = &native_doc_to_html($input_filename, $output_filestem);
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| 220 | }
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| 221 | else {
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| 222 | $success = &doc_to_html($input_filename, $output_filestem);
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| 223 | }
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[1445] | 224 | if ($success) {
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[10282] | 225 | return "html";
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[1445] | 226 | }
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| 227 | }
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[1654] | 228 | return &convertAnything($input_filename, $output_filestem, $output_type);
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| 229 | }
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| 230 |
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| 231 |
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| 232 | # Convert a Rich Text Format (RTF) file
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| 233 |
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| 234 | sub convertRTF {
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| 235 | ($input_filename, $output_filestem, $output_type) = @_;
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| 236 |
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| 237 | my $success = 0;
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| 238 |
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| 239 | # Attempt specialised conversion to HTML
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[16435] | 240 | if (!$output_type || ($output_type =~ m/html/i)) {
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[12704] | 241 |
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| 242 | if ($windows_scripting) {
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| 243 | $success = &native_doc_to_html($input_filename, $output_filestem);
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| 244 | }
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| 245 | else {
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| 246 | $success = &rtf_to_html($input_filename, $output_filestem);
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| 247 | }
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[1654] | 248 | if ($success) {
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| 249 | return "html";
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| 250 | }
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| 251 | }
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| 252 |
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[2755] | 253 | # rtf is so ugly that's it's not worth running strings over.
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| 254 | # One day I'll write some quick'n'dirty regexps to try to extract text - jrm21
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| 255 | # return &convertAnything($input_filename, $output_filestem, $output_type);
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| 256 | return "fail";
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[1654] | 257 | }
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| 258 |
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| 259 |
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| 260 | # Convert an unidentified file
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| 261 |
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| 262 | sub convertAnything {
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| 263 | ($input_filename, $output_filestem, $output_type) = @_;
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| 264 |
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| 265 | my $success = 0;
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[10464] | 266 |
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[1445] | 267 | # Attempt simple conversion to HTML
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[16435] | 268 | if (!$output_type || ($output_type =~ m/html/i)) {
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[1445] | 269 | $success = &any_to_html($input_filename, $output_filestem);
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| 270 | if ($success) {
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| 271 | return "html";
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| 272 | }
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| 273 | }
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| 274 |
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| 275 | # Convert to text
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[16435] | 276 | if (!$output_type || ($output_type =~ m/text/i)) {
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[2241] | 277 | $success = &any_to_text($input_filename, $output_filestem);
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[1445] | 278 | if ($success) {
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| 279 | return "text";
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| 280 | }
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| 281 | }
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| 282 | return "fail";
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| 283 | }
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| 284 |
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| 285 |
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[1654] | 286 |
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[1445] | 287 | # Convert an Adobe PDF document
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| 288 |
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| 289 | sub convertPDF {
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[2755] | 290 | my ($dirname, $input_filename, $output_filestem, $output_type) = @_;
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[1445] | 291 |
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| 292 | my $success = 0;
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[10357] | 293 | $output_type =~ s/.*\-(.*)/$1/i;
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| 294 | # Attempt coversion to Image
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[16435] | 295 | if ($output_type =~ m/jp?g|gif|png/i) {
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[17329] | 296 | $success = &pdfps_to_img($dirname, $input_filename, $output_filestem, $output_type);
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[10357] | 297 | if ($success){
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| 298 | return "item";
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| 299 | }
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| 300 | }
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[1445] | 301 |
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| 302 | # Attempt conversion to HTML
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[16435] | 303 | if (!$output_type || ($output_type =~ m/html/i)) {
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[1445] | 304 | $success = &pdf_to_html($dirname, $input_filename, $output_filestem);
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| 305 | if ($success) {
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| 306 | return "html";
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| 307 | }
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| 308 | }
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| 309 |
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| 310 | # Attempt conversion to TEXT
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[16435] | 311 | if (!$output_type || ($output_type =~ m/text/i)) {
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[2117] | 312 | $success = &pdf_to_text($dirname, $input_filename, $output_filestem);
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[1445] | 313 | if ($success) {
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| 314 | return "text";
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| 315 | }
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| 316 | }
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| 317 |
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| 318 | return "fail";
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| 319 |
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| 320 | }
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| 321 |
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| 322 |
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| 323 | # Convert an Adobe PostScript document
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| 324 |
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| 325 | sub convertPS {
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| 326 | ($input_filename, $output_filestem, $output_type) = @_;
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| 327 |
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| 328 | my $success = 0;
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[10534] | 329 | $output_type =~ s/.*\-(.*)/$1/i;
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| 330 | # Attempt coversion to Image
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[16435] | 331 | if ($output_type =~ m/jp?g|gif|png/i) {
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[17329] | 332 | $success = &pdfps_to_img($dirname, $input_filename, $output_filestem, $output_type);
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[10534] | 333 | if ($success){
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| 334 | return "item";
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| 335 | }
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| 336 | }
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[1445] | 337 |
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| 338 | # Attempt conversion to TEXT
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[16435] | 339 | if (!$output_type || ($output_type =~ m/text/i)) {
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[1445] | 340 | $success = &ps_to_text($input_filename, $output_filestem);
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| 341 | if ($success) {
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| 342 | return "text";
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| 343 | }
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| 344 | }
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| 345 | return "fail";
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| 346 | }
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| 347 |
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| 348 |
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[2977] | 349 | sub convertPPT {
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| 350 | my ($input_filename, $output_filestem, $output_type) = @_;
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[10357] | 351 | my $success = 0;
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[2977] | 352 |
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[10282] | 353 | my $ppt_convert_type = "";
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[16435] | 354 | #if (!$output_type || $windows_scripting || ($output_type !~ m/html/i) || ($output_type !~ m/text/i)){
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| 355 | if ($windows_scripting && ($output_type !~ m/html/i) && ($output_type !~ m/text/i)){
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| 356 | if ($output_type =~ m/gif/i) {
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[10282] | 357 | $ppt_convert_type = "-g";
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[16435] | 358 | } elsif ($output_type =~ m/jp?g/i){
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[10282] | 359 | $ppt_convert_type = "-j";
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[16435] | 360 | } elsif ($output_type =~ m/png/i){
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[10282] | 361 | $ppt_convert_type = "-p";
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| 362 | }
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| 363 | my $vbScript = &util::filename_cat($ENV{'GSDLHOME'}, "bin",
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| 364 | $ENV{'GSDLOS'}, "pptextract");
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[16435] | 365 | $vbScript = "pptextract" if ($ENV{'GSDLOS'} =~ m/^windows$/i);
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[10282] | 366 |
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| 367 | $cmd = "";
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[10357] | 368 | if ($timeout) {$cmd = "ulimit -t $timeout;";}
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[10282] | 369 | # if the converting directory has already existed
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| 370 | if (-d $output_filestem) {
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| 371 | print STDERR "**The conversion directory has existed\n";
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| 372 | return "item";
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| 373 | } else {
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[10521] | 374 | $cmd .= "$vbScript $ppt_convert_type \"$input_filename\" \"$output_filestem\"";
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[10282] | 375 | $cmd .= " 2>\"$output_filestem.err\""
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[16435] | 376 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000);
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[10282] | 377 | if (system($cmd) !=0) {
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| 378 | print STDERR "Powerpoint VB Scripting convert failed\n";
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| 379 | } else {
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| 380 | return "item";
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| 381 | }
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| 382 | }
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[16435] | 383 | } elsif (!$output_type || ($output_type =~ m/html/i)) {
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[10282] | 384 | # Attempt conversion to HTML
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[16435] | 385 | #if (!$output_type || ($output_type =~ m/html/i)) {
|
---|
[2977] | 386 | # formulate the command
|
---|
| 387 | $cmd = "";
|
---|
| 388 | $cmd .= "perl -S ppttohtml.pl ";
|
---|
| 389 | $cmd .= " \"$input_filename\" \"$output_filestem.html\"";
|
---|
| 390 | $cmd .= " 2>\"$output_filestem.err\""
|
---|
[16435] | 391 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000);
|
---|
[10357] | 392 |
|
---|
[2977] | 393 | # execute the command
|
---|
| 394 | $!=0;
|
---|
| 395 | if (system($cmd)!=0)
|
---|
| 396 | {
|
---|
[2991] | 397 | print STDERR "Powerpoint 95/97 converter failed $!\n";
|
---|
[2977] | 398 | } else {
|
---|
| 399 | return "html";
|
---|
| 400 | }
|
---|
[10464] | 401 | }
|
---|
[2977] | 402 |
|
---|
| 403 | $success = &any_to_text($input_filename, $output_filestem);
|
---|
| 404 | if ($success) {
|
---|
| 405 | return "text";
|
---|
| 406 | }
|
---|
[10464] | 407 |
|
---|
[2977] | 408 | return "fail";
|
---|
| 409 | }
|
---|
| 410 |
|
---|
| 411 |
|
---|
[2991] | 412 | sub convertXLS {
|
---|
| 413 | my ($input_filename, $output_filestem, $output_type) = @_;
|
---|
[2977] | 414 |
|
---|
[2991] | 415 | my $success = 0;
|
---|
[2977] | 416 |
|
---|
[2991] | 417 | # Attempt conversion to HTML
|
---|
[16435] | 418 | if (!$output_type || ($output_type =~ m/html/i)) {
|
---|
[2991] | 419 | # formulate the command
|
---|
| 420 | $cmd = "";
|
---|
| 421 | $cmd .= "perl -S xlstohtml.pl ";
|
---|
| 422 | $cmd .= " \"$input_filename\" \"$output_filestem.html\"";
|
---|
| 423 | $cmd .= " 2>\"$output_filestem.err\""
|
---|
[16435] | 424 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000);
|
---|
[2991] | 425 |
|
---|
| 426 |
|
---|
| 427 | # execute the command
|
---|
| 428 | $!=0;
|
---|
| 429 | if (system($cmd)!=0)
|
---|
| 430 | {
|
---|
| 431 | print STDERR "Excel 95/97 converter failed $!\n";
|
---|
| 432 | } else {
|
---|
| 433 | return "html";
|
---|
| 434 | }
|
---|
| 435 | }
|
---|
[2977] | 436 |
|
---|
[2991] | 437 | $success = &any_to_text($input_filename, $output_filestem);
|
---|
| 438 | if ($success) {
|
---|
| 439 | return "text";
|
---|
| 440 | }
|
---|
| 441 |
|
---|
| 442 | return "fail";
|
---|
| 443 | }
|
---|
| 444 |
|
---|
| 445 |
|
---|
| 446 |
|
---|
[1654] | 447 | # Find the real type of a .doc file
|
---|
| 448 | #
|
---|
[2012] | 449 | # We seem to have a lot of files with a .doc extension that are .rtf
|
---|
[1654] | 450 | # files or Word 5 files. This function attempts to tell the difference.
|
---|
| 451 | sub find_docfile_type {
|
---|
| 452 | ($input_filename) = @_;
|
---|
| 453 |
|
---|
| 454 | open(CHK, "<$input_filename");
|
---|
[1734] | 455 | binmode(CHK);
|
---|
[1654] | 456 | my $line = "";
|
---|
| 457 | my $first = 1;
|
---|
| 458 |
|
---|
| 459 | while (<CHK>) {
|
---|
| 460 |
|
---|
| 461 | $line = $_;
|
---|
[1960] | 462 |
|
---|
[1654] | 463 | if ($first) {
|
---|
| 464 | # check to see if this is an rtf file
|
---|
[16435] | 465 | if ($line =~ m/^\{\\rtf/) {
|
---|
[1654] | 466 | close(CHK);
|
---|
| 467 | return "rtf";
|
---|
| 468 | }
|
---|
[2755] | 469 | $first = 0;
|
---|
[1654] | 470 | }
|
---|
| 471 |
|
---|
[1734] | 472 | # is this is a word 6/7/8 document?
|
---|
[16435] | 473 | if ($line =~ m/Word\.Document\.([678])/) {
|
---|
[1654] | 474 | close(CHK);
|
---|
[1734] | 475 | return "word$1";
|
---|
[1654] | 476 | }
|
---|
| 477 |
|
---|
| 478 | }
|
---|
| 479 |
|
---|
| 480 | return "unknown";
|
---|
| 481 | }
|
---|
| 482 |
|
---|
| 483 |
|
---|
[1734] | 484 | # Specific type-to-type conversions
|
---|
[1445] | 485 | #
|
---|
| 486 | # Each of the following functions attempts to convert a document from
|
---|
[2755] | 487 | # a specific format to another. If they succeed they return 1 and leave
|
---|
[1445] | 488 | # the output document(s) in the appropriate place; if they fail they
|
---|
| 489 | # return 0 and delete any working files.
|
---|
| 490 |
|
---|
| 491 |
|
---|
| 492 | # Attempt to convert a word document to html with the wv program
|
---|
| 493 | sub doc_to_html {
|
---|
| 494 | ($input_filename, $output_filestem) = @_;
|
---|
| 495 |
|
---|
[20933] | 496 | my $wvWare = &util::filename_cat($ENV{'GSDLHOME'}, "bin", $ENV{'GSDLOS'}, "wvWare");
|
---|
[1928] | 497 |
|
---|
[20933] | 498 | if ( -d "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}/wv" && $ENV{'GSDLOS'} eq "linux" ) {
|
---|
| 499 | $ENV{'PATH'} = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}/wv/bin:$ENV{'PATH'}";
|
---|
| 500 | $ENV{'LD_LIBRARY_PATH'} = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}/wv/lib:$ENV{'LD_LIBRARY_PATH'}";
|
---|
| 501 | $wvWare = &util::filename_cat($ENV{'GSDLHOME'}, "bin", $ENV{'GSDLOS'}, "wv", "bin", "wvWare");
|
---|
| 502 | }
|
---|
| 503 |
|
---|
[2241] | 504 | # don't include path on windows (to avoid having to play about
|
---|
| 505 | # with quoting when GSDLHOME might contain spaces) but assume
|
---|
| 506 | # that the PATH is set up correctly
|
---|
[16435] | 507 | $wvWare = "wvWare" if ($ENV{'GSDLOS'} =~ m/^windows$/i);
|
---|
[2241] | 508 |
|
---|
[2512] | 509 | my $wv_conf = &util::filename_cat($ENV{'GSDLHOME'}, "etc",
|
---|
[2574] | 510 | "packages", "wv", "wvHtml.xml");
|
---|
[1928] | 511 |
|
---|
[15120] | 512 | # Added the following to work with replace_srcdoc_with_html.pl:
|
---|
| 513 | # Make wvWare put any associated (image) files of the word doc into
|
---|
| 514 | # folder docname-without-extention_files. This folder should be at
|
---|
| 515 | # the same level as the html file generated from the doc.
|
---|
| 516 | # wvWare will take care of proper interlinking.
|
---|
| 517 |
|
---|
| 518 | # This step is necessary for replace_srcdoc_with_html.pl which will
|
---|
| 519 | # move the html and associated files into the import folder. We
|
---|
| 520 | # want to ensure that the associated files won't overwrite similarly
|
---|
| 521 | # named items already in import. Hence we put them in a folder first
|
---|
| 522 | # (to which the html links properly) and that will allow
|
---|
| 523 | # replace_srcdoc_with_html.pl to move them safely to /import.
|
---|
| 524 |
|
---|
| 525 | # To do all this, we need to use wvWare's --dir and --basename options
|
---|
| 526 | # where dir is the full path to the image folder directory and
|
---|
| 527 | # basename is the full path to the image folder appended to the name
|
---|
| 528 | # which is to be prepended to every image file:
|
---|
| 529 | # eg. if the images were to have names like sample0.jpg to sampleN.jpg,
|
---|
| 530 | # then the basename is "/full/path/to/imgdir/sample".
|
---|
| 531 | # In this case, basename is the full path to and name of the document.
|
---|
| 532 | # HOWEVER: basename always takes full path, not relative url, so
|
---|
| 533 | # the greenstone browser is unable to display the images (absolute paths
|
---|
| 534 | # cause it to give an "external link" message)
|
---|
| 535 | # See http://osdir.com/ml/lib.wvware.devel/2002-11/msg00014.html
|
---|
| 536 | # and http://rpmfind.net/linux/RPM/freshmeat/rpms/wv/wv-0.5.44-1.i386.html
|
---|
| 537 | # "added --dir option to wvHtml so that pictures can be placed in
|
---|
| 538 | # a seperate directory"
|
---|
| 539 | # "running wvWare through IMP to view word documents as html. It gets
|
---|
| 540 | # invoked like this:
|
---|
| 541 | # wvWare --dir=/tmp-wvWare --basename=/tmp-wvWare/img$$- $tmp_word >$tmp_output"
|
---|
| 542 |
|
---|
| 543 | # toppath is the folder where html is generated
|
---|
| 544 | # docname is the name (without extension) of the html to be generated
|
---|
| 545 | # suffix (extension) is thrown away
|
---|
| 546 | my ($docname, $toppath)
|
---|
| 547 | = &File::Basename::fileparse($input_filename, "\\.[^\\.]+\$");
|
---|
| 548 |
|
---|
| 549 | # We want the image folder generated to have the same name as windows
|
---|
| 550 | # would generate ($windows_scripting) when it converts from word to html.
|
---|
| 551 | # That is, foldername=docname_files
|
---|
| 552 | my $assoc_dir = &util::filename_cat($toppath, $docname."_files");
|
---|
| 553 | #print "assoc_dir: ".$assoc_dir."\n"; # same as "$output_filestem._files"
|
---|
| 554 |
|
---|
| 555 | # ensure this image directory exists
|
---|
| 556 | # if it exists already, just delete and recreate
|
---|
| 557 | if(-e $assoc_dir) {
|
---|
| 558 | &util::rm_r($assoc_dir);
|
---|
| 559 | }
|
---|
| 560 | &util::mk_dir($assoc_dir);
|
---|
| 561 |
|
---|
| 562 | # the images are all going to be called image0, image1,..., imageN
|
---|
| 563 | my $img_basenames = &util::filename_cat($assoc_dir, $docname);
|
---|
| 564 |
|
---|
| 565 | #print STDERR "****toppath: $toppath\n****docname: $docname\n;
|
---|
| 566 | #print STDERR "****img_basenames: $img_basenames\n" if($img_basenames);
|
---|
| 567 | #print STDERR "****assoc_dir: $assoc_dir\n" if($assoc_dir);
|
---|
| 568 |
|
---|
[2241] | 569 | my $cmd = "";
|
---|
[1692] | 570 | if ($timeout) {$cmd = "ulimit -t $timeout;";}
|
---|
[15120] | 571 | # wvWare's --dir and --basename options for image directory.
|
---|
| 572 | # Replaced the next line with the *2 lines* following it:
|
---|
| 573 | # $cmd .= "$wvWare --charset utf-8 --config \"$wv_conf\"";
|
---|
| 574 | $cmd .= "$wvWare --dir \"$assoc_dir\" --basename \"$img_basenames\"";
|
---|
| 575 | $cmd .= " --charset utf-8 --config \"$wv_conf\"";
|
---|
[2241] | 576 | $cmd .= " \"$input_filename\" > \"$output_filestem.html\"";
|
---|
[15120] | 577 |
|
---|
[2241] | 578 | # redirecting STDERR is a bad idea on windows 95/98
|
---|
| 579 | $cmd .= " 2> \"$output_filestem.err\""
|
---|
[16435] | 580 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000);
|
---|
[1445] | 581 | # execute the command
|
---|
[2755] | 582 | $!=0;
|
---|
[2060] | 583 | if (system($cmd)!=0)
|
---|
[1445] | 584 | {
|
---|
[2755] | 585 | print STDERR "Error executing wv converter:$!\n";
|
---|
| 586 | if (-s "$output_filestem.err") {
|
---|
| 587 | open (ERRFILE, "<$output_filestem.err");
|
---|
| 588 |
|
---|
| 589 | my $write_to_fail_log=0;
|
---|
| 590 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile")))
|
---|
| 591 | {$write_to_fail_log=1;}
|
---|
| 592 |
|
---|
| 593 | my $line;
|
---|
| 594 | while ($line=<ERRFILE>) {
|
---|
[16435] | 595 | if ($line =~ m/\w/) {
|
---|
[2755] | 596 | print STDERR "$line";
|
---|
| 597 | print FAILLOG "$line" if ($write_to_fail_log);
|
---|
| 598 | }
|
---|
| 599 | if ($line !~ m/startup error/) {next;}
|
---|
| 600 | print STDERR " (given an invalid .DOC file?)\n";
|
---|
| 601 | print FAILLOG " (given an invalid .DOC file?)\n"
|
---|
| 602 | if ($write_to_fail_log);
|
---|
| 603 |
|
---|
| 604 | } # while ERRFILE
|
---|
| 605 | close FAILLOG if ($write_to_fail_log);
|
---|
| 606 | }
|
---|
| 607 | return 0; # we can try any_to_text
|
---|
[1445] | 608 | }
|
---|
[1578] | 609 |
|
---|
[1445] | 610 | # Was the conversion successful?
|
---|
[2241] | 611 |
|
---|
[15120] | 612 | if (-s "$output_filestem.html") { # if file has non-zero size (i.e. it has contents)
|
---|
[1445] | 613 | open(TMP, "$output_filestem.html");
|
---|
| 614 | $line = <TMP>;
|
---|
| 615 | close(TMP);
|
---|
[16435] | 616 | if ($line && $line =~ m/DOCTYPE HTML/) {
|
---|
[15120] | 617 | &util::rm("$output_filestem.err") if -e "$output_filestem.err";
|
---|
| 618 |
|
---|
| 619 | # Inserted this code to remove the images directory if it was still empty after
|
---|
| 620 | # the html was generated (in case there were no images in the word document)
|
---|
[16435] | 621 | if (&util::is_dir_empty($assoc_dir)) {
|
---|
[15152] | 622 | #print STDERR "***gsConvert.pl: Image dir $assoc_dir is empty, removing***\n";
|
---|
[15120] | 623 | &util::rm_r($assoc_dir);
|
---|
| 624 | } else { # there was an image folder (it was generated)
|
---|
| 625 | # Therefore, the html file generated contains absolute links to the images
|
---|
[16435] | 626 | # Replace them with relative links instead, so the folder can be moved elsewhere
|
---|
[15152] | 627 | &make_links_to_assocdir_relative($toppath, $docname, "$output_filestem.html", $assoc_dir, $docname."_files");
|
---|
[15120] | 628 | }
|
---|
[1445] | 629 | return 1;
|
---|
| 630 | }
|
---|
| 631 | }
|
---|
[2755] | 632 |
|
---|
| 633 | # If here, an error of some sort occurred
|
---|
| 634 | &util::rm("$output_filestem.html") if -e "$output_filestem.html";
|
---|
| 635 | if (-e "$output_filestem.err") {
|
---|
| 636 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile"))) {
|
---|
| 637 | open (ERRLOG,"$output_filestem.err");
|
---|
| 638 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 639 | close FAILLOG;
|
---|
| 640 | close ERRLOG;
|
---|
| 641 | }
|
---|
| 642 | &util::rm("$output_filestem.err");
|
---|
| 643 | }
|
---|
| 644 |
|
---|
[1445] | 645 | return 0;
|
---|
| 646 | }
|
---|
| 647 |
|
---|
[15120] | 648 | # Method to work with doc_to_html - Word docs might contain images.
|
---|
| 649 | # When such word docs are converted with wvWare, we make it generate a
|
---|
| 650 | # <filename>_files folder with the associated images, while the html file
|
---|
| 651 | # <filename> refers to the images using absolute paths to <filename>_files.
|
---|
| 652 | # This method reads in that html file and replaces all the absolute paths to
|
---|
| 653 | # the images in <filename>_files with the relative paths to the images from
|
---|
| 654 | # that folder. (I.e. with <filename>_files/<imagename.ext>).
|
---|
| 655 | sub make_links_to_assocdir_relative{
|
---|
| 656 | # toppath is the top-level folder in which the html file we're going to be fixing resides
|
---|
| 657 | # docname is just the name (without extension) of the html file
|
---|
| 658 | # html_file is the full path to the html file: /full/path/docname.html
|
---|
| 659 | # assoc_dir_path is toppath/docname_files
|
---|
| 660 | # assoc_dirname is the directory name of the folder with associated imgs: docname_files
|
---|
| 661 | my ($toppath, $docname, $html_file, $assoc_dir_path, $assoc_dirname) = @_;
|
---|
[10357] | 662 |
|
---|
[15120] | 663 | # 1. Read all the contents of the html into a string
|
---|
| 664 | # open the original file for reading
|
---|
| 665 | unless(open(FIN, "<$html_file")) {
|
---|
[15168] | 666 | print STDERR "gsConvert.pl: Unable to open $html_file for reading absolute urls...ERROR: $!\n";
|
---|
[15152] | 667 | return 0;
|
---|
[15120] | 668 | }
|
---|
| 669 | # From http://perl.plover.com/local.html
|
---|
| 670 | # "It's cheaper to read the file all at once, without all the splitting and reassembling.
|
---|
| 671 | # (Some people call this slurping the file.) Perl has a special feature to support this:
|
---|
| 672 | # If the $/ variable is undefined, the <...> operator will read the entire file all at once"
|
---|
[15152] | 673 | my $html_contents;
|
---|
| 674 | {
|
---|
| 675 | local $/ = undef; # Read entire file at once
|
---|
| 676 | $html_contents = <FIN>; # Now file is read in as one single 'line'
|
---|
| 677 | }
|
---|
[15120] | 678 | close(FIN); # close the file
|
---|
[15152] | 679 | #print STDERR $html_contents;
|
---|
[15120] | 680 |
|
---|
| 681 | # 2. Replace (substitute) *all* ocurrences of the assoc_dir_path in a hrefs and img src
|
---|
| 682 | # values with assoc_dirname
|
---|
| 683 | # At the end: g means substitute all occurrences (global), while s at the end means treat
|
---|
| 684 | # all new lines as a regular space. This interacts with g to consider all the lines
|
---|
| 685 | # together as a single line so that multi-occurrences can be replaced.
|
---|
[15152] | 686 |
|
---|
| 687 | # we can't just replace $assoc_dir_path with $assoc_dir
|
---|
| 688 | # $assoc_dir_path represents a regular expression that needs to be replaced
|
---|
[16435] | 689 | # if it contains ., -, [, ], or Windows style backslashes in paths -- which all have special
|
---|
| 690 | # meaning in Perl regular expressions -- we need to escape these first
|
---|
[15152] | 691 | my $safe_reg_expression = $assoc_dir_path;
|
---|
[16435] | 692 | $safe_reg_expression =~ s/\\/\\\\/g;
|
---|
[15152] | 693 | $safe_reg_expression =~ s/\./\\./g;
|
---|
| 694 | $safe_reg_expression =~ s/\-/\\-/g;
|
---|
| 695 | $safe_reg_expression =~ s/\[/\\[/g;
|
---|
| 696 | $safe_reg_expression =~ s/\]/\\]/g;
|
---|
| 697 | $safe_reg_expression =~ s/ /%20/g; # wvWare put %20 in place of space, so we need to change our prefix to match
|
---|
| 698 |
|
---|
[15120] | 699 | # The following regular expression substitution looks for <a or <image, followed by any other
|
---|
| 700 | # attributes and values until it comes to the FIRST (indicated by ?) href= or src=
|
---|
| 701 | # followed by " or ' no quotes at all around path, followed by the associated folder's pathname
|
---|
| 702 | # followed by characters (for the img filename), then finally the optional closing quotes
|
---|
| 703 | # in " or ' form, followed by any other attributes and values until the first > to end the tag.
|
---|
| 704 | # The substitution: all the parts preceding associated folder's pathname are retained,
|
---|
| 705 | # the associated folder path name is replaced by associated folder directory name
|
---|
| 706 | # and the rest upto and including the closing > tag is retained.
|
---|
| 707 | # The sg at the end of the pattern match treats all of html_contents as a single line (s)
|
---|
| 708 | # and performs a global replace (g) meaning that all occurrences that match in that single line
|
---|
| 709 | # are substituted.
|
---|
[15152] | 710 | $html_contents =~ s/(<(a|img).*?(href|src)=(\"|\')?)$safe_reg_expression(.*?(\"|\')?.*?>)/$1$assoc_dirname$5/sg;
|
---|
| 711 | #$html_contents =~ s/$safe_reg_expression/$assoc_dirname/gs; # this works, used as fall-back
|
---|
| 712 | # now replace any %20 chars in filenames of href or src attributes to use literal space ' '. Calls a function for this
|
---|
[16435] | 713 | $html_contents =~ s/(<(a|img).*?(href|src)=(\"|\')?)(.*)(.*?(\"|\')?.*?>)/&post_process_assocfile_urls($1, $5, $6)/sge;
|
---|
| 714 |
|
---|
[16552] | 715 | #print STDERR "****assoc_dirname: $assoc_dirname***\n";
|
---|
| 716 | #print STDERR "****safe_reg_expression: $safe_reg_expression***\n";
|
---|
[15152] | 717 |
|
---|
[15120] | 718 | # delete the original file and recreate it
|
---|
| 719 | my $copy_of_filename = $html_file;
|
---|
| 720 | &util::rm($copy_of_filename); # deleted the file
|
---|
| 721 |
|
---|
| 722 | # Recreate the original file for writing the updated contents
|
---|
| 723 | unless(open(FOUT, ">$html_file")) { # open it as a new file for writing
|
---|
[15168] | 724 | print STDERR "gsConvert.pl: Unable to open $html_file for writing relative links...ERROR: $!\n";
|
---|
[15152] | 725 | return 0;
|
---|
[15120] | 726 | }
|
---|
[16435] | 727 |
|
---|
[15120] | 728 | # write out the updated contents and close the file
|
---|
| 729 | print FOUT $html_contents;
|
---|
| 730 | close(FOUT);
|
---|
[15152] | 731 | return 1;
|
---|
[15120] | 732 | }
|
---|
| 733 |
|
---|
[16435] | 734 | # Utility routine to make sure HTML plugin gets img src/href link pathnames that contain
|
---|
| 735 | # url slashes (/) instead of windows-style backwards slashes, and to convert all %20
|
---|
[16899] | 736 | # introduced in link pathnames by wvWare into space again. Converts all percent signs
|
---|
| 737 | # introduced by URL encoding filenames generated into %25 in these url links referencing them
|
---|
[16435] | 738 | sub post_process_assocfile_urls
|
---|
[15120] | 739 | {
|
---|
[15152] | 740 | my ($pre, $text, $post) = @_;
|
---|
| 741 |
|
---|
[19763] | 742 | $text =~ s/%20/ /g; # Convert %20s to space and not underscore since underscores mess with incremental rebuild
|
---|
| 743 | # $text =~ s/%20/_/g; # reinstated this line, since we no longer replace spaces with %20. We replace them with underscores
|
---|
[16435] | 744 | $text =~ s/\\/\//g;
|
---|
[16899] | 745 | $text =~ s/%/%25/g;
|
---|
[15152] | 746 |
|
---|
| 747 | return "$pre$text$post";
|
---|
[15120] | 748 | }
|
---|
| 749 |
|
---|
[10282] | 750 | # Attempt to convert a word document to html with the word2html scripting program
|
---|
| 751 | sub native_doc_to_html {
|
---|
| 752 | ($input_filename, $output_filestem) = @_;
|
---|
[1445] | 753 |
|
---|
[10282] | 754 | my $vbScript = &util::filename_cat($ENV{'GSDLHOME'}, "bin",
|
---|
| 755 | $ENV{'GSDLOS'}, "word2html");
|
---|
| 756 |
|
---|
[16435] | 757 | $vbScript = "word2html" if ($ENV{'GSDLOS'} =~ m/^windows$/i);
|
---|
[10445] | 758 | if (-e "$output_filestem.html") {
|
---|
| 759 | print STDERR "*** The conversion file has existed\n";
|
---|
| 760 | return 1;
|
---|
| 761 | }
|
---|
[10282] | 762 |
|
---|
| 763 | my $cmd = "";
|
---|
| 764 | if ($timeout) {$cmd = "ulimit -t $timeout;";}
|
---|
| 765 | #$cmd .= "$vbScript \"$input_filename\" \"$output_filestem.html\"";
|
---|
[10445] | 766 | #$cmd .= "$vbScript $input_filename $output_filestem.html";
|
---|
[10521] | 767 | $cmd .= "$vbScript \"$input_filename\" \"$output_filestem.html\"";
|
---|
[10445] | 768 |
|
---|
[10282] | 769 | # redirecting STDERR
|
---|
| 770 | $cmd .= " 2> \"$output_filestem.err\""
|
---|
[16435] | 771 | if ($ENV {'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000);
|
---|
[10282] | 772 |
|
---|
| 773 | # execute the command
|
---|
| 774 | $!=0;
|
---|
| 775 | if (system($cmd)!=0)
|
---|
| 776 | {
|
---|
| 777 | print STDERR "Error executing word2Html converter:$!\n";
|
---|
| 778 | if (-s "$output_filestem.err") {
|
---|
| 779 | open (ERRFILE, "<$output_filestem.err");
|
---|
| 780 |
|
---|
| 781 | my $write_to_fail_log=0;
|
---|
| 782 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile")))
|
---|
| 783 | {$write_to_fail_log=1;}
|
---|
| 784 |
|
---|
| 785 | my $line;
|
---|
| 786 | while ($line=<ERRFILE>) {
|
---|
[16435] | 787 | if ($line =~ m/\w/) {
|
---|
[10282] | 788 | print STDERR "$line";
|
---|
| 789 | print FAILLOG "$line" if ($write_to_fail_log);
|
---|
| 790 | }
|
---|
| 791 | if ($line !~ m/startup error/) {next;}
|
---|
| 792 | print STDERR " (given an invalid .DOC file?)\n";
|
---|
| 793 | print FAILLOG " (given an invalid .DOC file?)\n"
|
---|
| 794 | if ($write_to_fail_log);
|
---|
| 795 |
|
---|
| 796 | } # while ERRFILE
|
---|
| 797 | close FAILLOG if ($write_to_fail_log);
|
---|
| 798 | }
|
---|
| 799 | return 0; # we can try any_to_text
|
---|
| 800 | }
|
---|
| 801 |
|
---|
| 802 | # Was the conversion successful?
|
---|
| 803 | if (-s "$output_filestem.html") {
|
---|
| 804 | open(TMP, "$output_filestem.html");
|
---|
| 805 | $line = <TMP>;
|
---|
| 806 | close(TMP);
|
---|
[16435] | 807 | if ($line && $line =~ m/html/) {
|
---|
[10282] | 808 | &util::rm("$output_filestem.err") if -e "$output_filestem.err";
|
---|
| 809 | return 1;
|
---|
| 810 | }
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 | # If here, an error of some sort occurred
|
---|
| 814 | &util::rm("$output_filestem.html") if -e "$output_filestem.html";
|
---|
| 815 | if (-e "$output_filestem.err") {
|
---|
| 816 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile"))) {
|
---|
| 817 | open (ERRLOG,"$output_filestem.err");
|
---|
| 818 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 819 | close FAILLOG;
|
---|
| 820 | close ERRLOG;
|
---|
| 821 | }
|
---|
| 822 | &util::rm("$output_filestem.err");
|
---|
| 823 | }
|
---|
| 824 | return 0;
|
---|
| 825 | }
|
---|
| 826 |
|
---|
[1654] | 827 | # Attempt to convert an RTF document to html with rtftohtml
|
---|
| 828 |
|
---|
| 829 | sub rtf_to_html {
|
---|
[2241] | 830 | my ($input_filename, $output_filestem) = @_;
|
---|
[1654] | 831 |
|
---|
| 832 | # formulate the command
|
---|
[1692] | 833 | $cmd = "";
|
---|
| 834 | if ($timeout) {$cmd = "ulimit -t $timeout;";}
|
---|
[2574] | 835 | $cmd .= "rtftohtml";
|
---|
[10282] | 836 | #$cmd .= "rtf-converter";
|
---|
[1654] | 837 |
|
---|
[3246] | 838 | $cmd .= " -o \"$output_filestem.html\" \"$input_filename\"";
|
---|
[2574] | 839 |
|
---|
| 840 | $cmd .= " 2>\"$output_filestem.err\""
|
---|
[16435] | 841 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000);
|
---|
[2574] | 842 |
|
---|
| 843 |
|
---|
[1654] | 844 | # execute the command
|
---|
[2755] | 845 | $!=0;
|
---|
[2060] | 846 | if (system($cmd)!=0)
|
---|
[1654] | 847 | {
|
---|
[2755] | 848 | print STDERR "Error executing rtf converter $!\n";
|
---|
[2656] | 849 | # don't currently bother printing out error log...
|
---|
| 850 | # keep going, in case it still created an HTML file...
|
---|
[1654] | 851 | }
|
---|
| 852 |
|
---|
| 853 | # Was the conversion successful?
|
---|
[2755] | 854 | my $was_successful=0;
|
---|
[2656] | 855 | if (-s "$output_filestem.html") {
|
---|
[2755] | 856 | # make sure we have some content other than header
|
---|
| 857 | open (HTML, "$output_filestem.html"); # what to do if fail?
|
---|
| 858 | my $line;
|
---|
| 859 | my $past_header=0;
|
---|
| 860 | while ($line=<HTML>) {
|
---|
| 861 |
|
---|
| 862 | if ($past_header == 0) {
|
---|
[16435] | 863 | if ($line =~ m/<body>/) {$past_header=1;}
|
---|
[2755] | 864 | next;
|
---|
| 865 | }
|
---|
| 866 |
|
---|
| 867 | $line =~ s/<[^>]+>//g;
|
---|
[16435] | 868 | if ($line =~ m/\w/ && $past_header) { # we found some content...
|
---|
[2755] | 869 | $was_successful=1;
|
---|
| 870 | last;
|
---|
| 871 | }
|
---|
| 872 | }
|
---|
| 873 | close HTML;
|
---|
[1654] | 874 | }
|
---|
[2574] | 875 |
|
---|
[2755] | 876 | if ($was_successful) {
|
---|
| 877 | &util::rm("$output_filestem.err")
|
---|
| 878 | if (-e "$output_filestem.err");
|
---|
| 879 | # insert the (modified) table of contents, if it exists.
|
---|
| 880 | if (-e "${output_filestem}_ToC.html") {
|
---|
| 881 | &util::mv("$output_filestem.html","$output_filestem.src");
|
---|
| 882 | my $open_failed=0;
|
---|
| 883 | open HTMLSRC, "$output_filestem.src" || ++$open_failed;
|
---|
| 884 | open TOC, "${output_filestem}_ToC.html" || ++$open_failed;
|
---|
| 885 | open HTML, ">$output_filestem.html" || ++$open_failed;
|
---|
| 886 |
|
---|
| 887 | if ($open_failed) {
|
---|
| 888 | close HTMLSRC;
|
---|
| 889 | close TOC;
|
---|
| 890 | close HTML;
|
---|
| 891 | &util::mv("$output_filestem.src","$output_filestem.html");
|
---|
| 892 | return 1;
|
---|
| 893 | }
|
---|
| 894 |
|
---|
| 895 | # print out header info from src html.
|
---|
[16435] | 896 | while (defined($_ = <HTMLSRC>) && $_ =~ m/\w/) {
|
---|
[2755] | 897 | print HTML "$_";
|
---|
| 898 | }
|
---|
| 899 |
|
---|
| 900 | # print out table of contents, making links relative
|
---|
| 901 | <TOC>; <TOC>; # ignore first 2 lines
|
---|
| 902 | print HTML scalar(<TOC>); # line 3 = "<ol>\n"
|
---|
| 903 | my $line;
|
---|
| 904 | while ($line=<TOC>) {
|
---|
| 905 | $line =~ s@</body></html>$@@ ; # only last line has this
|
---|
| 906 | # make link relative
|
---|
| 907 | $line =~ s@href=\"[^\#]+@href=\"@;
|
---|
| 908 | print HTML $line;
|
---|
| 909 | }
|
---|
| 910 | close TOC;
|
---|
| 911 |
|
---|
| 912 | # rest of html src
|
---|
| 913 | while (<HTMLSRC>) {
|
---|
| 914 | print HTML $_;
|
---|
| 915 | }
|
---|
| 916 | close HTMLSRC;
|
---|
| 917 | close HTML;
|
---|
| 918 |
|
---|
| 919 | &util::rm("${output_filestem}_ToC.html");
|
---|
| 920 | &util::rm("${output_filestem}.src");
|
---|
| 921 | }
|
---|
| 922 | # we don't yet do anything with footnotes ($output_filestem_fn.html) :(
|
---|
| 923 | return 1; # success
|
---|
| 924 | }
|
---|
| 925 |
|
---|
| 926 | if (-e "$output_filestem.err") {
|
---|
| 927 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile")))
|
---|
| 928 | {
|
---|
| 929 | print FAILLOG "Error - rtftohtml - couldn't extract text\n";
|
---|
[10282] | 930 | #print FAILLOG "Error - rtf-converter - couldn't extract text\n";
|
---|
[2755] | 931 | print FAILLOG " (rtf file might be too recent):\n";
|
---|
| 932 | open (ERRLOG, "$output_filestem.err");
|
---|
| 933 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 934 | close ERRLOG;
|
---|
| 935 | close FAILLOG;
|
---|
| 936 | }
|
---|
| 937 | &util::rm("$output_filestem.err");
|
---|
| 938 | }
|
---|
| 939 |
|
---|
[2656] | 940 | &util::rm("$output_filestem.html") if (-e "$output_filestem.html");
|
---|
| 941 |
|
---|
[1654] | 942 | return 0;
|
---|
| 943 | }
|
---|
| 944 |
|
---|
| 945 |
|
---|
[1445] | 946 | # Convert a pdf file to html with the pdftohtml command
|
---|
| 947 |
|
---|
| 948 | sub pdf_to_html {
|
---|
[2755] | 949 | my ($dirname, $input_filename, $output_filestem) = @_;
|
---|
[1445] | 950 |
|
---|
[1692] | 951 | $cmd = "";
|
---|
| 952 | if ($timeout) {$cmd = "ulimit -t $timeout;";}
|
---|
[3720] | 953 | $cmd .= "perl -S pdftohtml.pl -zoom $pdf_zoom";
|
---|
| 954 | $cmd .= " -c" if ($pdf_complex);
|
---|
| 955 | $cmd .= " -i" if ($pdf_ignore_images);
|
---|
[10451] | 956 | $cmd .= " -a" if ($pdf_allow_images_only);
|
---|
[4103] | 957 | $cmd .= " -hidden" unless ($pdf_nohidden);
|
---|
[1928] | 958 | $cmd .= " \"$input_filename\" \"$output_filestem\"";
|
---|
[2755] | 959 |
|
---|
[16435] | 960 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000) {
|
---|
[2755] | 961 | $cmd .= " > \"$output_filestem.out\" 2> \"$output_filestem.err\"";
|
---|
| 962 | } else {
|
---|
| 963 | $cmd .= " > \"$output_filestem.err\"";
|
---|
| 964 | }
|
---|
| 965 |
|
---|
[2117] | 966 | $!=0;
|
---|
[2241] | 967 |
|
---|
[2656] | 968 | my $retval=system($cmd);
|
---|
| 969 | if ($retval!=0)
|
---|
[1445] | 970 | {
|
---|
[2755] | 971 | print STDERR "Error executing pdftohtml.pl";
|
---|
[2117] | 972 | if ($!) {print STDERR ": $!";}
|
---|
| 973 | print STDERR "\n";
|
---|
[1445] | 974 | }
|
---|
| 975 |
|
---|
[1692] | 976 | # make sure the converter made something
|
---|
[2656] | 977 | if ($retval!=0 || ! -s "$output_filestem.html")
|
---|
[1692] | 978 | {
|
---|
| 979 | &util::rm("$output_filestem.out") if (-e "$output_filestem.out");
|
---|
[2656] | 980 | # print out the converter's std err, if any
|
---|
| 981 | if (-s "$output_filestem.err") {
|
---|
[1692] | 982 | open (ERRLOG, "$output_filestem.err") || die "$!";
|
---|
[2755] | 983 | print STDERR "pdftohtml error log:\n";
|
---|
[1692] | 984 | while (<ERRLOG>) {
|
---|
| 985 | print STDERR "$_";
|
---|
| 986 | }
|
---|
| 987 | close ERRLOG;
|
---|
| 988 | }
|
---|
[2656] | 989 | &util::rm("$output_filestem.html") if (-e "$output_filestem.html");
|
---|
[2755] | 990 | if (-e "$output_filestem.err") {
|
---|
| 991 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile")))
|
---|
| 992 | {
|
---|
| 993 | open (ERRLOG, "$output_filestem.err");
|
---|
| 994 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 995 | close ERRLOG;
|
---|
| 996 | close FAILLOG;
|
---|
| 997 | }
|
---|
[10282] | 998 | &util::rm("$output_filestem.err");
|
---|
[2755] | 999 | }
|
---|
[1692] | 1000 | return 0;
|
---|
| 1001 | }
|
---|
[10357] | 1002 |
|
---|
| 1003 | &util::rm("$output_filestem.err") if (-e "$output_filestem.err");
|
---|
| 1004 | &util::rm("$output_filestem.out") if (-e "$output_filestem.out");
|
---|
| 1005 | return 1;
|
---|
| 1006 | }
|
---|
| 1007 |
|
---|
| 1008 | # Convert a pdf file to various types of image with the convert command
|
---|
| 1009 |
|
---|
[17329] | 1010 | sub pdfps_to_img {
|
---|
[10357] | 1011 | my ($dirname, $input_filename, $output_filestem, $output_type) = @_;
|
---|
[10401] | 1012 |
|
---|
| 1013 | # Check that ImageMagick is installed and available on the path (except for Windows 95/98)
|
---|
| 1014 | if (!($ENV{'GSDLOS'} eq "windows" && !Win32::IsWinNT())) {
|
---|
| 1015 | my $result = `identify 2>&1`;
|
---|
| 1016 | if ($? == -1 || $? == 256) { # Linux and Windows return different values for "program not found"
|
---|
| 1017 | #ImageMagick is not installed, thus the convert utility is not available.
|
---|
[17329] | 1018 | print STDERR "*** ImageMagick is not installed, the convert utility is not available. Unable to convert PDF/PS to images\n";
|
---|
[10401] | 1019 | return 0;
|
---|
| 1020 | }
|
---|
| 1021 | }
|
---|
| 1022 |
|
---|
[10357] | 1023 | $cmd = "";
|
---|
| 1024 | if ($timeout) {$cmd = "ulimit -t $timeout;";}
|
---|
| 1025 | $output_type =~ s/.*\_(.*)/$1/i;
|
---|
[17329] | 1026 | $cmd .= "perl -S pdfpstoimg.pl -convert_to $output_type \"$input_filename\" \"$output_filestem\"";
|
---|
[16435] | 1027 | if ($ENV{'GSDLOS'} !~ m/^windows$/i || $is_winnt_2000) {
|
---|
[10357] | 1028 | $cmd .= " > \"$output_filestem.out\" 2> \"$output_filestem.err\"";
|
---|
| 1029 | } else {
|
---|
| 1030 | $cmd .= " > \"$output_filestem.err\"";
|
---|
| 1031 | }
|
---|
| 1032 |
|
---|
| 1033 | # don't include path on windows (to avoid having to play about
|
---|
| 1034 | # with quoting when GSDLHOME might contain spaces) but assume
|
---|
| 1035 | # that the PATH is set up correctly
|
---|
| 1036 | $!=0;
|
---|
| 1037 | my $retval=system($cmd);
|
---|
| 1038 | if ($retval!=0)
|
---|
| 1039 | {
|
---|
[10401] | 1040 | print STDERR "Error executing pdftoimg.pl";
|
---|
[10357] | 1041 | if ($!) {print STDERR ": $!";}
|
---|
| 1042 | print STDERR "\n";
|
---|
| 1043 | }
|
---|
| 1044 |
|
---|
| 1045 | #make sure the converter made something
|
---|
| 1046 | #if ($retval !=0) || ! -s "$output_filestem")
|
---|
| 1047 | if ($retval !=0)
|
---|
| 1048 | {
|
---|
| 1049 | &util::rm("$output_filestem.out") if (-e "$output_filestem.out");
|
---|
| 1050 | #print out the converter's std err, if any
|
---|
| 1051 | if (-s "$output_filestem.err") {
|
---|
| 1052 | open (ERRLOG, "$output_filestem.err") || die "$!";
|
---|
[17329] | 1053 | print STDERR "pdfpstoimg error log:\n";
|
---|
[10357] | 1054 | while (<ERRLOG>) {
|
---|
| 1055 | print STDERR "$_";
|
---|
| 1056 | }
|
---|
| 1057 | close ERRLOG;
|
---|
| 1058 | }
|
---|
[10534] | 1059 | #&util::rm("$output_filestem.html") if (-e "$output_filestem.html");
|
---|
[10357] | 1060 | if (-e "$output_filestem.err") {
|
---|
| 1061 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile")))
|
---|
| 1062 | {
|
---|
| 1063 | open (ERRLOG, "$output_filestem.err");
|
---|
| 1064 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 1065 | close ERRLOG;
|
---|
| 1066 | close FAILLOG;
|
---|
| 1067 | }
|
---|
| 1068 | &util::rm("$output_filestem.err");
|
---|
| 1069 | }
|
---|
| 1070 | return 0;
|
---|
| 1071 | }
|
---|
[2656] | 1072 | &util::rm("$output_filestem.err") if (-e "$output_filestem.err");
|
---|
[1445] | 1073 | &util::rm("$output_filestem.out") if (-e "$output_filestem.out");
|
---|
| 1074 | return 1;
|
---|
| 1075 | }
|
---|
| 1076 |
|
---|
| 1077 | # Convert a PDF file to text with the pdftotext command
|
---|
| 1078 |
|
---|
| 1079 | sub pdf_to_text {
|
---|
[2755] | 1080 | my ($dirname, $input_filename, $output_filestem) = @_;
|
---|
[1445] | 1081 |
|
---|
[2248] | 1082 | my $cmd = "pdftotext \"$input_filename\" \"$output_filestem.text\"";
|
---|
[2755] | 1083 |
|
---|
[16435] | 1084 | if ($ENV{'GSDLOS'} !~ m/^windows$/i) {
|
---|
[2755] | 1085 | $cmd .= " > \"$output_filestem.out\" 2> \"$output_filestem.err\"";
|
---|
| 1086 | } else {
|
---|
| 1087 | $cmd .= " > \"$output_filestem.err\"";
|
---|
| 1088 | }
|
---|
[1445] | 1089 |
|
---|
[2060] | 1090 | if (system($cmd)!=0)
|
---|
[1445] | 1091 | {
|
---|
| 1092 | print STDERR "Error executing $cmd: $!\n";
|
---|
| 1093 | &util::rm("$output_filestem.text") if (-e "$output_filestem.text");
|
---|
| 1094 | }
|
---|
| 1095 |
|
---|
[2755] | 1096 | # make sure there is some extracted text.
|
---|
| 1097 | if (-e "$output_filestem.text") {
|
---|
| 1098 | open (EXTR_TEXT, "$output_filestem.text") || warn "open: $!";
|
---|
| 1099 | binmode(EXTR_TEXT); # just in case...
|
---|
| 1100 | my $line="";
|
---|
| 1101 | my $seen_text=0;
|
---|
| 1102 | while (($seen_text==0) && ($line=<EXTR_TEXT>)) {
|
---|
[16435] | 1103 | if ($line=~ m/\w/) {$seen_text=1;}
|
---|
[2755] | 1104 | }
|
---|
| 1105 | close EXTR_TEXT;
|
---|
| 1106 | if ($seen_text==0) { # no text was extracted
|
---|
| 1107 | print STDERR "Error: pdftotext found no text\n";
|
---|
| 1108 | &util::rm("$output_filestem.text");
|
---|
| 1109 | }
|
---|
| 1110 | }
|
---|
| 1111 |
|
---|
[1692] | 1112 | # make sure the converter made something
|
---|
[2656] | 1113 | if (! -s "$output_filestem.text")
|
---|
[1692] | 1114 | {
|
---|
| 1115 | # print out the converters std err, if any
|
---|
[2656] | 1116 | if (-s "$output_filestem.err") {
|
---|
[1692] | 1117 | open (ERRLOG, "$output_filestem.err") || die "$!";
|
---|
[2755] | 1118 | print STDERR "pdftotext error log:\n";
|
---|
[1692] | 1119 | while (<ERRLOG>) {
|
---|
| 1120 | print STDERR "$_";
|
---|
| 1121 | }
|
---|
| 1122 | close ERRLOG;
|
---|
| 1123 | }
|
---|
[2656] | 1124 | # does this converter create a .out file?
|
---|
| 1125 | &util::rm("$output_filestem.out") if (-e "$output_filestem.out");
|
---|
| 1126 | &util::rm("$output_filestem.text") if (-e "$output_filestem.text");
|
---|
[2755] | 1127 | if (-e "$output_filestem.err") {
|
---|
| 1128 | if ($faillogfile ne "" && defined(open(FAILLOG,">>$faillogfile")))
|
---|
| 1129 | {
|
---|
| 1130 | open (ERRLOG,"$output_filestem.err");
|
---|
| 1131 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 1132 | close ERRLOG;
|
---|
| 1133 | close FAILLOG;
|
---|
| 1134 | }
|
---|
| 1135 | &util::rm("$output_filestem.err");
|
---|
| 1136 | }
|
---|
[1692] | 1137 | return 0;
|
---|
| 1138 | }
|
---|
[1445] | 1139 | &util::rm("$output_filestem.err") if (-e "$output_filestem.err");
|
---|
| 1140 | return 1;
|
---|
| 1141 | }
|
---|
| 1142 |
|
---|
[2012] | 1143 | # Convert a PostScript document to text
|
---|
| 1144 | # note - just using "ps2ascii" isn't good enough, as it
|
---|
| 1145 | # returns 0 for a postscript interpreter error. ps2ascii is just
|
---|
| 1146 | # a wrapper to "gs" anyway, so we use that cmd here.
|
---|
[1445] | 1147 |
|
---|
| 1148 | sub ps_to_text {
|
---|
[2241] | 1149 | my ($input_filename, $output_filestem) = @_;
|
---|
[1445] | 1150 |
|
---|
[2241] | 1151 | my $error = "";
|
---|
| 1152 |
|
---|
| 1153 | # if we're on windows we'll fall straight through without attempting
|
---|
| 1154 | # to use gs
|
---|
[16435] | 1155 | if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
|
---|
[2241] | 1156 | $error = "Windows does not support gs";
|
---|
| 1157 |
|
---|
| 1158 | } else {
|
---|
[3538] | 1159 | my $cmd = "";
|
---|
| 1160 | if ($timeout) {$cmd = "ulimit -t $timeout; ";}
|
---|
| 1161 | $cmd .= "gs -q -dNODISPLAY -dNOBIND -dWRITESYSTEMDICT -dSIMPLE -c save ";
|
---|
[2241] | 1162 | $cmd .= "-f ps2ascii.ps \"$input_filename\" -c quit > \"$output_filestem.text\"";
|
---|
[10357] | 1163 | #$cmd .= "pstotext -output \"$output_filestem.text\" $input_filename\"";
|
---|
[2241] | 1164 | $cmd .= " 2> $output_filestem.err";
|
---|
| 1165 | $!=0;
|
---|
[10357] | 1166 |
|
---|
[2241] | 1167 | my $retcode=system($cmd);
|
---|
| 1168 | $retcode = $? >> 8; # see man perlfunc - system for this...
|
---|
| 1169 | # if system returns -1 | 127 (couldn't start program), look at $! for message
|
---|
| 1170 |
|
---|
| 1171 | if ($retcode!=0) {if ($!) {$error=$!;} else {$error="couldn't run.\n";}}
|
---|
| 1172 | elsif (! -e "$output_filestem.text") {
|
---|
| 1173 | $error="did not create output file.\n";
|
---|
[2012] | 1174 | }
|
---|
[2241] | 1175 | else
|
---|
| 1176 | { # make sure the interpreter didn't get an error. It is technically
|
---|
| 1177 | # possible for the actual text to start with this, but....
|
---|
| 1178 | open PSOUT, "$output_filestem.text";
|
---|
[16435] | 1179 | if (<PSOUT> =~ m/^Error: (.*)/) {
|
---|
[2241] | 1180 | $error="interpreter error - \"$1\"";
|
---|
| 1181 | }
|
---|
| 1182 | close PSOUT;
|
---|
| 1183 | }
|
---|
[2012] | 1184 | }
|
---|
[2241] | 1185 |
|
---|
[2012] | 1186 | if ($error ne "")
|
---|
[1445] | 1187 | {
|
---|
[2755] | 1188 | print STDERR "Warning: Error executing gs: $error\n";
|
---|
[1445] | 1189 | &util::rm("$output_filestem.text") if (-e "$output_filestem.text");
|
---|
[2755] | 1190 |
|
---|
| 1191 | if ("$faillogfile" ne "" && defined(open (FAILLOG, ">>$faillogfile")))
|
---|
| 1192 | {
|
---|
| 1193 | print FAILLOG "gs - $error\n";
|
---|
| 1194 | if (-e "$output_filestem.err") {
|
---|
| 1195 | open(ERRLOG, "$output_filestem.err");
|
---|
| 1196 | while (<ERRLOG>) {print FAILLOG $_;}
|
---|
| 1197 | close ERRLOG;
|
---|
| 1198 | }
|
---|
| 1199 | close FAILLOG;
|
---|
| 1200 | }
|
---|
[1445] | 1201 | &util::rm("$output_filestem.err") if (-e "$output_filestem.err");
|
---|
[2012] | 1202 |
|
---|
[2755] | 1203 |
|
---|
[2012] | 1204 | # Fine then. We'll just do a lousy job by ourselves...
|
---|
[2031] | 1205 | # Based on 5-line regexp sed script found at:
|
---|
[2012] | 1206 | # http://snark.ptc.spbu.ru/mail-archives/lout/brown/msg00003.html
|
---|
| 1207 | #
|
---|
[2755] | 1208 | print STDERR "Stripping text from postscript\n";
|
---|
[2012] | 1209 | my $errorcode=0;
|
---|
| 1210 | open (IN, "$input_filename")
|
---|
| 1211 | || ($errorcode=1, warn "Couldn't read file: $!");
|
---|
| 1212 | open (OUT, ">$output_filestem.text")
|
---|
| 1213 | || ($errorcode=1, warn "Couldn't write file: $!");
|
---|
| 1214 | if ($errorcode) {print STDERR "errors\n";return 0;}
|
---|
| 1215 |
|
---|
[2031] | 1216 | my $text=""; # this is for whole .ps file...
|
---|
[2755] | 1217 | $text = join('', <IN>); # see man perlport, under "System Resources"
|
---|
[2031] | 1218 | close IN;
|
---|
| 1219 |
|
---|
[2447] | 1220 | # Make sure this is a ps file...
|
---|
[16435] | 1221 | if ($text !~ m/^%!/) {
|
---|
[2755] | 1222 | print STDERR "Bad postscript header: not '%!'\n";
|
---|
| 1223 | if ($faillogfile ne "" && defined(open(FAILLOG, ">>$faillogfile")))
|
---|
| 1224 | {
|
---|
| 1225 | print FAILLOG "Bad postscript header: not '%!'\n";
|
---|
| 1226 | close FAILLOG;
|
---|
| 1227 | }
|
---|
[2447] | 1228 | return 0;
|
---|
| 1229 | }
|
---|
| 1230 |
|
---|
[2031] | 1231 | # if ps has Page data, then use it to delete all stuff before it.
|
---|
| 1232 | $text =~ s/^.*?%%Page:.*?\n//s; # treat string as single line
|
---|
| 1233 |
|
---|
| 1234 | # remove all leading non-data stuff
|
---|
| 1235 | $text =~ s/^.*?\(//s;
|
---|
| 1236 |
|
---|
| 1237 | # remove all newline chars for easier processing
|
---|
| 1238 | $text =~ s/\n//g;
|
---|
| 1239 |
|
---|
| 1240 | # Big assumption here - assume that if any co-ordinates are
|
---|
| 1241 | # given, then we are at the end of a sentence.
|
---|
| 1242 | $text =~ s/\)-?\d+\ -?\d+/\) \(\n\)/g;
|
---|
| 1243 |
|
---|
| 1244 | # special characters--
|
---|
| 1245 | $text =~ s/\(\|\)/\(\ - \)/g; # j -> em-dash?
|
---|
| 1246 |
|
---|
| 1247 | # ? ps text formatting (eg italics?) ?
|
---|
| 1248 | $text =~ s/Fn\(f\)/\(\{\)/g; # f -> {
|
---|
| 1249 | $text =~ s/Fn\(g\)/\(\}\)/g; # g -> }
|
---|
| 1250 | $text =~ s/Fn\(j\)/\(\|\)/g; # j -> |
|
---|
| 1251 | # default - remove the rest
|
---|
| 1252 | $text =~ s/\ ?F.\((.+?)\)/\($1\)/g;
|
---|
| 1253 |
|
---|
| 1254 | # attempt to add whitespace between words...
|
---|
| 1255 | # this is based purely on observation, and may be completely wrong...
|
---|
| 1256 | $text =~ s/([^F])[defghijkuy]\(/$1 \( /g;
|
---|
| 1257 | # eg I notice "b(" is sometimes NOT a space if preceded by a
|
---|
| 1258 | # negative number.
|
---|
| 1259 | $text =~ s/\)\d+ ?b\(/\) \( /g;
|
---|
| 1260 |
|
---|
| 1261 | # change quoted braces to brackets
|
---|
| 1262 | $text =~ s/([^\\])\\\(/$1\{/g;
|
---|
| 1263 | $text =~ s/([^\\])\\\)/$1\}/g ;
|
---|
| 1264 |
|
---|
| 1265 | # remove everything that is not between braces
|
---|
| 1266 | $text =~ s/\)([^\(\)])+?\(//sg ;
|
---|
| 1267 |
|
---|
| 1268 | # remove any Trailer eof stuff.
|
---|
| 1269 | $text =~ s/\)[^\)]*$//sg;
|
---|
| 1270 |
|
---|
| 1271 | ### ligatures have special characters...
|
---|
| 1272 | $text =~ s/\\013/ff/g;
|
---|
| 1273 | $text =~ s/\\014/fi/g;
|
---|
| 1274 | $text =~ s/\\015/fl/g;
|
---|
| 1275 | $text =~ s/\\016/ffi/g;
|
---|
| 1276 | $text =~ s/\\214/fi/g;
|
---|
| 1277 | $text =~ s/\\215/fl/g;
|
---|
| 1278 | $text =~ s/\\017/\n\* /g; # asterisk?
|
---|
| 1279 | $text =~ s/\\023/\023/g; # e acute ('e)
|
---|
| 1280 | $text =~ s/\\177/\252/g; # u"
|
---|
| 1281 | # $text =~ s/ ?? /\344/g; # a"
|
---|
| 1282 |
|
---|
| 1283 | print OUT "$text";
|
---|
| 1284 | close OUT;
|
---|
[1960] | 1285 | }
|
---|
[2600] | 1286 | # wrap the text - use a minimum length. ie, first space after this length.
|
---|
| 1287 | my $wrap_length=72;
|
---|
| 1288 | &util::mv("$output_filestem.text", "$output_filestem.text.tmp");
|
---|
| 1289 | open INFILE, "$output_filestem.text.tmp" ||
|
---|
| 1290 | die "Couldn't open file: $!";
|
---|
| 1291 | open OUTFILE, ">$output_filestem.text" ||
|
---|
| 1292 | die "Couldn't open file for writing: $!";
|
---|
| 1293 | my $line="";
|
---|
| 1294 | while ($line=<INFILE>) {
|
---|
| 1295 | while (length($line)>0) {
|
---|
| 1296 | if (length($line)>$wrap_length) {
|
---|
| 1297 | $line =~ s/^(.{$wrap_length}[^\s]*)\s*//;
|
---|
| 1298 | print OUTFILE "$1\n";
|
---|
| 1299 | } else {
|
---|
| 1300 | print OUTFILE "$line";
|
---|
| 1301 | $line="";
|
---|
| 1302 | }
|
---|
| 1303 | }
|
---|
| 1304 | }
|
---|
| 1305 | close INFILE;
|
---|
| 1306 | close OUTFILE;
|
---|
| 1307 | &util::rm("$output_filestem.text.tmp");
|
---|
| 1308 |
|
---|
[1445] | 1309 | &util::rm("$output_filestem.err") if (-e "$output_filestem.err");
|
---|
| 1310 | return 1;
|
---|
| 1311 | }
|
---|
| 1312 |
|
---|
| 1313 |
|
---|
| 1314 | # Convert any file to HTML with a crude perl implementation of the
|
---|
| 1315 | # UNIX strings command.
|
---|
| 1316 |
|
---|
| 1317 | sub any_to_html {
|
---|
| 1318 | ($input_filename, $output_filestem) = @_;
|
---|
| 1319 |
|
---|
| 1320 | # First generate a text file
|
---|
| 1321 | return 0 unless (&any_to_text($input_filename, $output_filestem));
|
---|
| 1322 |
|
---|
| 1323 | # create an HTML file from the text file
|
---|
| 1324 | open(TEXT, "<$output_filestem.text");
|
---|
| 1325 | open(HTML, ">$output_filestem.html");
|
---|
| 1326 |
|
---|
[2241] | 1327 | print HTML "<html><head>\n";
|
---|
| 1328 | print HTML "<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html\">\n";
|
---|
| 1329 | print HTML "<META NAME=\"GENERATOR\" CONTENT=\"Greenstone any_to_html\">\n";
|
---|
| 1330 | print HTML "</head><body>\n\n";
|
---|
[1734] | 1331 |
|
---|
[2755] | 1332 | my $line;
|
---|
| 1333 | while ($line=<TEXT>) {
|
---|
| 1334 | $line =~ s/</</g;
|
---|
| 1335 | $line =~ s/>/>/g;
|
---|
[16435] | 1336 | if ($line =~ m/^\s*$/) {
|
---|
[2755] | 1337 | print HTML "<p>";
|
---|
| 1338 | } else {
|
---|
| 1339 | print HTML "<br> ", $line;
|
---|
| 1340 | }
|
---|
[1445] | 1341 | }
|
---|
[1734] | 1342 | print HTML "\n</body></html>\n";
|
---|
[1445] | 1343 |
|
---|
[2241] | 1344 | close HTML;
|
---|
| 1345 | close TEXT;
|
---|
| 1346 |
|
---|
[1445] | 1347 | &util::rm("$output_filestem.text") if (-e "$output_filestem.text");
|
---|
| 1348 | return 1;
|
---|
| 1349 | }
|
---|
| 1350 |
|
---|
| 1351 | # Convert any file to TEXT with a crude perl implementation of the
|
---|
| 1352 | # UNIX strings command.
|
---|
[2755] | 1353 | # Note - this assumes ascii charsets :( (jrm21)
|
---|
[1445] | 1354 |
|
---|
| 1355 | sub any_to_text {
|
---|
| 1356 | ($input_filename, $output_filestem) = @_;
|
---|
| 1357 |
|
---|
[3350] | 1358 | if (!$use_strings) {
|
---|
| 1359 | return 0;
|
---|
| 1360 | }
|
---|
[15120] | 1361 |
|
---|
| 1362 | print STDERR "\n**** In any to text****\n\n";
|
---|
[2755] | 1363 | open(IN, "<$input_filename") || return 0;
|
---|
[1734] | 1364 | binmode(IN);
|
---|
[2755] | 1365 | open(OUT, ">$output_filestem.text") || return 0;
|
---|
[1445] | 1366 |
|
---|
| 1367 | my ($line);
|
---|
[2755] | 1368 | my $output_line_count = 0;
|
---|
[1445] | 1369 | while (<IN>) {
|
---|
| 1370 | $line = $_;
|
---|
[1734] | 1371 |
|
---|
[1445] | 1372 | # delete anything that isn't a printable character
|
---|
| 1373 | $line =~ s/[^\040-\176]+/\n/sg;
|
---|
| 1374 |
|
---|
| 1375 | # delete any string less than 10 characters long
|
---|
[1734] | 1376 | $line =~ s/^.{0,9}$/\n/mg;
|
---|
[16435] | 1377 | while ($line =~ m/^.{1,9}$/m) {
|
---|
[1734] | 1378 | $line =~ s/^.{0,9}$/\n/mg;
|
---|
[1445] | 1379 | $line =~ s/\n+/\n/sg;
|
---|
| 1380 | }
|
---|
| 1381 |
|
---|
| 1382 | # remove extraneous whitespace
|
---|
| 1383 | $line =~ s/\n+/\n/gs;
|
---|
| 1384 | $line =~ s/^\n//gs;
|
---|
[1578] | 1385 |
|
---|
[1445] | 1386 | # output whatever is left
|
---|
[16435] | 1387 | if ($line =~ m/[^\n ]/) {
|
---|
[1445] | 1388 | print OUT $line;
|
---|
[2755] | 1389 | ++$output_line_count;
|
---|
[1445] | 1390 | }
|
---|
| 1391 | }
|
---|
[2241] | 1392 |
|
---|
| 1393 | close OUT;
|
---|
| 1394 | close IN;
|
---|
| 1395 |
|
---|
[2755] | 1396 | if ($output_line_count) { # try to protect against binary only formats
|
---|
| 1397 | return 1;
|
---|
| 1398 | }
|
---|
| 1399 |
|
---|
| 1400 | &util::rm("$output_filestem.text");
|
---|
| 1401 | return 0;
|
---|
| 1402 |
|
---|
[1445] | 1403 | }
|
---|