File::MMagic::XS(3pm)

1File::MMagic::XS(3)   User Contributed Perl Documentation  File::MMagic::XS(3)
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NAME

6       File::MMagic::XS - Guess File Type With XS (a la mod_mime_magic)
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SYNOPSIS

9         use File::MMagic::XS;
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11         my $m = File::MMagic::XS->new();
12            $m = File::MMagic::XS->new('/etc/magic'); # use external magic file
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14         my $mime = $m->get_mime($file);
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16         # use File::MMagic compatible interface
17         use File::MMagic::XS qw(:compat);
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19         my $m = File::MMagic::XS->new();
20         $m->checktype_filename($file);
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DESCRIPTION

23       This is a port of Apache2 mod_mime_magic.c in Perl, written in XS with
24       the aim of being efficient and fast, especially for applications that
25       need to be run for an extended amount of time.
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27       There is a compatibility layer for File::MMagic. you can specify
28       :compat when importing the module
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30          use File::MMagic::XS qw(:compat);
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32       And then the following methods are going to be available from
33       File::MMagic::XS:
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35          checktype_filename
36          checktype_filehandle
37          checktype_contents
38          addMagicEntry
39
40       Currently this software is in beta. If you have
41       suggestions/recommendations about the interface or anything else, now
42       is your chance to send them!
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METHODS

45   new(%args)
46       Creates a new File::MMagic::XS object.
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48       If you specify the "file" argument, then File::MMagic::XS will load
49       magic definitions from the specified file. If unspecified, it will use
50       the magic file that will be installed under File/MMagic/ directory.
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52   clone()
53       Clones an existing File::MMagic::XS object.
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55   parse_magic_file($file)
56       Read and parse a magic file, as used by Apache2.
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58   get_mime($file)
59       Inspects the file specified by $file and returns a MIME type if
60       possible.  If no matching MIME type is found, then undef is returned.
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62   fsmagic($file)
63       Inspects a file and returns a MIME type using inode information only.
64       The contents of the file is not inspected.
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66   fhmagic($fh)
67       Inspects a file handle and returns a mime string by reading the
68       contents of the file handle.
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70   ascmagic($file)
71       Inspects a piece of data (assuming it's not binary data), and attempts
72       to determine the file type.
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74   bufmagic($scalar)
75       Inspects a scalar buffer, and attempts to determine the file type
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77   add_magic($magic_line)
78       Adds a new magic entry to the object. The format of $magic_line is the
79       same as magic(5) file. This allows you to add custom magic entries at
80       run time
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82   add_file_ext($ext, $mime)
83       Adds a new file extension to MIME mapping. This is used as a fallback
84       method to determining MIME types.
85
86         my $magic = File::MMagic::XS->new;
87         $magic->add_file_ext('t', 'text/perl-test');
88         my $mime  = $magic->get_mime('t/01-sanity.t');
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90       This will make get_mime() return 'text/perl-test'.
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92   error()
93       Returns the last error string.
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PERFORMANCE

96       This is on my laptop (MacBook, Core 2 Duo/ Mac OS X 10.4.3), tested
97       against File::MMagic::XS 0.09003
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99                 Rate  perl    xs
100         perl   513/s    --  -96%
101         xs   12048/s 2249%    --
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AUTHOR

107       Copyright 2005-2007 Daisuke Maki <daisuke@endeworks.jp>.
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109       Underlying software: Copyright 1999-2004 The Apache Software
110       Foundation, Copyright (c) 1996-1997 Cisco Systems, Inc., Copyright (c)
111       Ian F. Darwin, 1987. Written by Ian F. Darwin.
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LICENSE

114       This program is free software; you can redistribute it and/or modify it
115       under the same terms as Perl itself.
116
117       See http://www.perl.com/perl/misc/Artistic.html
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121perl v5.30.0                      2019-07-26               File::MMagic::XS(3)