1File::MimeInfo::Magic(3U)ser Contributed Perl DocumentatiFoinle::MimeInfo::Magic(3)
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NAME

6       File::MimeInfo::Magic - Determine file type with magic
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SYNOPSIS

9               use File::MimeInfo::Magic;
10               my $mime_type = mimetype($file);
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DESCRIPTION

13       This module inherits from File::MimeInfo, it is transparent to its
14       functions but adds support for the freedesktop magic file.
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16       Magic data is hashed when you need it for the first time.  If you want
17       to force hashing earlier use the "rehash()" function.
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EXPORT

20       The method "mimetype" is exported by default. The methods "magic",
21       "inodetype", "globs" and "describe" can be exported on demand.
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METHODS

24       See also File::MimeInfo for methods that are inherited.
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26       "mimetype($file)"
27           Returns a mime-type string for $file, returns undef on failure.
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29           This method bundles "inodetype()", "globs()" and "magic()".
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31           Magic rules with an priority of 80 and higher are checked before
32           "globs()" is called, all other magic rules afterwards.
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34           If this doesn't work the file is read and the mime-type defaults to
35           'text/plain' or to 'application/octet-stream' when the first ten
36           chars of the file match ascii control chars (white spaces
37           excluded).  If the file doesn't exist or isn't readable "undef" is
38           returned.
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40           If $file is an object reference only "magic" and the default method
41           are used. See below for details.
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43       "magic($file)"
44           Returns a mime-type string for $file based on the magic rules,
45           returns undef on failure.
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47           $file can be an object reference, in that case it is supposed to
48           have a "seek()" and a "read()" method. This allows you for example
49           to determine the mimetype of data in memory by using IO::Scalar.
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51           Be aware that when using a filehandle or an "IO::" object you need
52           to set the ":utf8" binmode yourself if appropriate.
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54       "rehash()"
55           Rehash the data files. Glob and magic information is preparsed when
56           this method is called.
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58           If you want to by-pass the XDG basedir system you can specify your
59           database directories by setting @File::MimeInfo::DIRS. But normally
60           it is better to change the XDG basedir environment variables.
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62       "default"
63       "describe"
64       "extensions"
65       "globs"
66       "inodetype"
67           These routines are imported from File::MimeInfo.
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SEE ALSO

70       File::MimeInfo
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LIMITATIONS

73       Only word sizes of 1, 2 or 4 are supported. Any other word size is
74       ignored and will cause a warning.
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AUTHOR

77       Jaap Karssenberg <pardus@cpan.org> Maintained by Michiel Beijen
78       <michiel.beijen@gmail.com>
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81       Copyright (c) 2003, 2012 Jaap G Karssenberg. All rights reserved.  This
82       program is free software; you can redistribute it and/or modify it
83       under the same terms as Perl itself.
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87perl v5.28.0                      2018-08-05          File::MimeInfo::Magic(3)
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