/usr/share/doc/claws-mail/tools/textviewer.pl is in claws-mail-tools 3.16.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | #!/usr/bin/perl
# COPYRIGHT AND LICENSE
# Copyright (C) 2005-2006 H.Merijn Brand
#
# This script is free software; you can redistribute it and/or modify it
# under the same terms as Perl and/or Claws Mail itself. (GPL)
use strict;
use warnings;
sub usage ($;$)
{
my ($err, $str) = (@_, "");
$err and select STDERR;
print
"usage: $0 [--html] [--type=<type>] file\n",
" --html Generate HTML (if supported)\n",
" --type=X X as mimetype (msword => doc)\n";
$str and print "$str\n";
exit $err;
} # usage
@ARGV == 1 and $ARGV[0] eq "-?" || $ARGV[0] =~ m/^-+help$/ and usage (0);
use Getopt::Long qw(:config bundling nopermute);
my $opt_v = 0;
my $opt_t;
my $opt_h = "text";
GetOptions (
"v|verbose:1" => \$opt_v,
"t|type|mimetype=s" => \$opt_t,
"h|html" => sub { $opt_h = "html" },
) or usage (1);
$opt_v and print "$0 @ARGV\n";
my $file = shift or usage (1, "File argument is missing");
-f $file or usage (1, "File argument is not a plain file");
-r $file or usage (1, "File argument is not a readable file");
-s $file or usage (1, "File argument is an empty file");
# anon-list contains all possible commands to show content
# plain text is a reference to same type (alias)
# %f will be replaced with file. If no %f, file will be the last arg
my %fh = (
text => {
bin => [ "strings" ], # fallback for binary files
txt => [ "cat" ], # Plain text
html => [ "txt2htm",
"text2html" ], # HTML
msword => "doc",
doc => [ "antiword -w 72" ], # M$ Word
"vnd.ms-excel" => "xls",
"ms-excel" => "xls",
xls => [ "xlscat -L" ], # M$ Excel
# ppt => [ "ppthtml" ], # M$ PowerPoint
# ppthtml "$1" | html2text
rtf => [ "rtf2text",
"unrtf -t text" ], # RTF
pdf => [ "pdftotext %f -" ], # Adobe PDF
sxc => "xls", # OpenOffice spreadsheet
odt => [ "ooo2txt" ], # OpenOffice writer
csv => "xls", # Comma Separated Values
pl => [ "perltidy -st -se",
"cat" ], # Perl
pm => "pl",
( map { $_ => "txt" } qw(
diff
c h ic ec cc
sh sed awk
plain
)),
bz2 => [ "bzip2 -d < %f | strings" ],
test => [ \&test ], # Internal
},
html => {
rtf => [ "rtf2html" ],
},
);
my $ext = $file =~ m/\.(\w+)$/ ? lc $1 : "";
$opt_t && exists $fh{text}{lc $opt_t} and $ext = lc$opt_t;
unless (exists $fh{text}{$ext}) {
my $ftype = `file --brief $file`;
$ext =
$ftype =~ m/^pdf doc/i ? "pdf" :
$ftype =~ m/^ascii( english)? text/i ? "txt" :
$ftype =~ m/^(utf-8 unicode|iso-\d+)( english)? text/i ? "txt" :
$ftype =~ m/^xml doc/i ? "xml" :
$ftype =~ m/^\w+ compress/i ? "bin" :
"bin" ;
# \w+ archive
# \w+ image
# ...
}
$ext ||= "txt";
exists $fh{$opt_h}{$ext} or $opt_h = "text";
exists $fh{$opt_h}{$ext} or $ext = "txt";
my $ref = $fh{$opt_h}{$ext};
ref $ref or $ref = $fh{$opt_h}{$ref};
$opt_v and print STDERR "[ @$ref ] $file\n";
sub which ($)
{
(my $cmd = shift) =~ s/\s.*//; # Only the command. Discard arguments here
foreach my $path (split m/:+/, $ENV{PATH}) {
-x "$path/$cmd" and return "$path/$cmd";
}
return 0;
} # which
my $cmd = "cat -ve";
foreach my $c (@$ref) {
if (ref $c) {
$c->($file);
exit;
}
my $cp = which ($c) or next;
$cmd = $c;
last;
}
$cmd =~ s/%f\b/$file/g or $cmd .= " $file";
$opt_v and print "$cmd\n";
exec $cmd;
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