Section: User Contributed Perl Documentation (3pm)
use File::MimeInfo; my $mime_type = mimetype($file);
This module can be used to determine the mime type of a file. It tries to implement the freedesktop specification for a shared MIME database.
For this module shared-mime-info-spec 0.13 was used.
This package only uses the globs file. No real magic checking is used. The File::MimeInfo::Magic package is provided for magic typing.
If you want to determine the mimetype of data in a memory buffer you should use File::MimeInfo::Magic in combination with IO::Scalar.This module loads the various data files when needed. If you want to hash data earlier see the
"mimetype"is exported by default. The methods
"mimetype_isa"can be exported on demand.
"use File::MimeInfo ();"to avoid importing sub
$file, returns undef on failure.
"globs". If these methods are unsuccessful the file is read and the mimetype 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
$filebased on the filename and filename extensions. Returns undef on failure. The file doesn't need to exist.
Behaviour in list context (wantarray) is unspecified and will change in future releases.
The spec states that we should check for the ascii control chars and let higher bit chars pass to allow utf8. We try to be more intelligent using perl utf8 support.
$lang, this should be the two letter language code used in the xml files. Also you can set the global variable
$File::MimeInfo::LANGto specify a language.
This method returns undef when no xml file was found (i.e. the mimetype doesn't exist in the database). It returns an empty string when the xml file doesn't contain a description in the language you specified.
Currently no real xml parsing is done, it trusts the xml files are nicely formatted.
Use this method as a filter when you take a mimetype as input.
When given two arguments returns true if the second mimetype is a parent class of the first one.
This method checks the subclasses table and applies a few rules for implicit subclasses.
@File::MimeInfo::DIRS. But normally it is better to change the XDG basedir environment variables.
This module throws an exception when it can't find any data files, when it can't open a data file it found for reading or when a subroutine doesn't get enough arguments. In the first case you either don't have the freedesktop mime info database installed, or your environment variables point to the wrong places, in the second case you have the database installed, but it is broken (the mime info database should logically be world readable).
Make an option for using some caching mechanism to reduce init time.Make
"describe()"use real xml parsing ?
Perl versions prior to 5.8.0 do not have the ':utf8' IO Layer, thus for the default method and for reading the xml files utf8 is not supported for these versions.
Since it is not possible to distinguish between encoding types (utf8, latin1, latin2 etc.) in a straightforward manner only utf8 is supported (because the spec recommends this).
File::BaseDir, File::MimeInfo::Magic, File::MimeInfo::Applications, File::MimeInfo::Rox
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