File::...::Magic(3pm) User Contributed Perl Documentation File::...::Magic(3pm)
NAME
File::MimeInfo::Magic - Determine file type with magic
SYNOPSIS
use File::MimeInfo::Magic;
my $mime_type = mimetype($file);
DESCRIPTION
This module inherits from File::MimeInfo, it is transparent to its
functions but adds support for the freedesktop magic file.
Magic data is hashed when you need it for the first time. If you want
to force hashing earlier use the rehash() function.
EXPORT
The method "mimetype" is exported by default. The methods "magic",
"inodetype", "globs" and "describe" can be exported on demand.
METHODS
See also File::MimeInfo for methods that are inherited.
mimetype($file)
Returns a mime-type string for $file, returns undef on failure.
This method bundles inodetype(), globs() and magic().
Magic rules with an priority of 80 and higher are checked before
globs() is called, all other magic rules afterwards.
If this doesn't work the file is read and the mime-type defaults to
'text/plain' or to 'application/octet-stream' when the first ten
chars of the file match ascii control chars (white spaces excluded).
If the file doesn't exist or isn't readable "undef" is returned.
If $file is an object reference only "magic" and the default method
are used. See below for details.
magic($file)
Returns a mime-type string for $file based on the magic rules,
returns undef on failure.
$file can be an object reference, in that case it is supposed to
have a seek() and a read() method. This allows you for example to
determine the mimetype of data in memory by using IO::Scalar.
Be aware that when using a filehandle or an "IO::" object you need
to set the ":utf8" binmode yourself if appropriate.
rehash()
Rehash the data files. Glob and magic information is preparsed when
this method is called.
If you want to by-pass the XDG basedir system you can specify your
database directories by setting @File::MimeInfo::DIRS. But normally
it is better to change the XDG basedir environment variables.
"default"
"describe"
"extensions"
"globs"
"inodetype"
These routines are imported from File::MimeInfo.
SEE ALSO
File::MimeInfo
LIMITATIONS
Only word sizes of 1, 2 or 4 are supported. Any other word size is
ignored and will cause a warning.
AUTHOR
Jaap Karssenberg <pardus@cpan.org> Maintained by Michiel Beijen
<mb@x14.nl>
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.
perl v5.38.2 2024-04-27 File::...::Magic(3pm)
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