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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
package File::MimeInfo::Rox;
use strict;
use warnings;
use Carp;
use File::BaseDir qw/config_home data_dirs/;
use File::Spec;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(mime_exec mime_system);
our @EXPORT_OK = qw(suggest_script_name);
our %EXPORT_TAGS = (magic => \@EXPORT);
our $VERSION = '0.31';
our @choicespath = (
config_home('rox.sourceforge.net'),
File::Spec->catdir($ENV{HOME}, 'Choices'),
data_dirs('Choices'),
);
our ($DEBUG);
sub import {
my $parent = (grep {$_ eq q/:magic/} @_)
? q/File::MimeInfo::Magic/
: q/File::MimeInfo/;
eval "use $parent";
die $@ if $@;
goto \&Exporter::import;
}
sub mime_system { _do_mime('system', @_) }
sub mime_exec { _do_mime('exec', @_) }
sub _do_mime {
my ($act, $file, $mimet) = (shift, shift, shift);
$mimet ||= mimetype($file);
return undef unless $mimet;
print "Using mimetype: $mimet\n" if $DEBUG;
my $script = _locate_script($mimet);
return undef unless $script;
print "Going to $act: $script $file\n" if $DEBUG;
($act eq 'exec')
? exec($script, $file, @_)
: (system($script, $file, @_) == 0)
or croak "couldn't $act: $script $file";
42;
}
sub _locate_script {
my $mime = shift;
$mime =~ /^(\w+)/;
my $media = $1;
$mime =~ s#/#_#;
my @p = $ENV{CHOICESPATH}
? split(/:/, $ENV{CHOICESPATH})
: (@choicespath);
my $script;
for (
map("$_/MIME-types/$mime", @p),
map("$_/MIME-types/$media", @p)
) {
print "looking for: $_\n" if $DEBUG;
next unless -e $_;
$script = $_;
last;
}
return undef unless $script;
$script = "$script/AppRun" if -d $script;
return -f $script ? $script : undef;
}
sub suggest_script_name {
my $m = pop;
$m =~ s#/#_#;
my @p = $ENV{CHOICESPATH}
? split(/:/, $ENV{CHOICESPATH})
: (@choicespath);
return "$p[0]/MIME-types", $m;
}
1;
__END__
=head1 NAME
File::MimeInfo::Rox - Open files by mimetype "Rox style"
=head1 SYNOPSIS
use File::MimeInfo::Magic;
use File::MimeInfo::Rox qw/:magic/;
# open some file with the appropriate program
mime_system($somefile);
# more verbose version
my $mt = mimetype($somefile)
|| die "Could not find mimetype for $somefile\n";
mime_system($somefile, $mt)
|| die "No program to open $somefile available\n";
=head1 DESCRIPTION
This module tries to mimic the behaviour of the rox file
browser L<http://rox.sf.net> when "opening" data files.
It determines the mime type and searches in rox's C<Choices>
directories for a program to handle that mimetype.
See the rox documentation for an extensive discussion of this
mechanism.
=head1 EXPORT
The methods C<mime_exec> and C<mime_system> are exported,
if you use the export tag C<:magic> you get the same methods
but L<File::MimeInfo::Magic> will be used for mimetype lookup.
=head1 ENVIRONMENT
The environment variable C<CHOICESPATH> is used when searching
for rox's config dirs. It defaults to
C<$ENV{HOME}/Choices:/usr/local/share/Choices:/usr/share/Choices>
=head1 METHODS
=over 4
=item C<mime_system($file)>
=item C<mime_system($file, $mimetype, @_)>
Try to open C<$file> with the appropriate program for files of
it's mimetype. You can use C<$mimetype> to force the mimetype.
Also if you already know the mimetype it saves a lot of time
to just tell it.
If either the mimetype couldn't be determined or
no appropriate program could be found C<undef> is returned.
If the actual L<system> fails an exception is raised.
All remaining arguments are passed on to the handler.
=item C<mime_exec($file)>
=item C<mime_exec($file, $mimetype, @_)>
Like C<mime_system()> but uses L<exec> instead of L<system>,
so it B<never returns> if successful.
=item C<suggest_script_name($mimetype)>
Returns the list C<($dir, $file)> for the suggested place
to write new script files (or symlinks) for mimetype C<$mimetype>.
The suggested dir doesn't need to exist.
=back
=head1 AUTHOR
Jaap Karssenberg E<lt>pardus@cpan.orgE<gt>
Maintained by Michiel Beijen E<lt>mb@x14.nlE<gt>
=head1 COPYRIGHT
Copyright (c) 2003, 2012 Jaap G Karssenberg. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=head1 SEE ALSO
L<File::MimeInfo>,
L<File::MimeInfo::Magic>,
L<http://rox.sourceforce.net>
=cut
|
