mimeopen(1p) [debian man page]
MIMEOPEN(1p) User Contributed Perl Documentation MIMEOPEN(1p) NAME
mimeopen - Open files by mimetype SYNOPSIS
mimeopen [options] [-] files DESCRIPTION
This script tries to determine the mimetype of a file and open it with the default desktop application. If no default application is configured the user is prompted with an "open with" menu in the terminal. To use this script you need the freedestop mime-info database and the freedesktop desktop-file-utils package. See File::MimeInfo::Applications(3) for more details. OPTIONS
-a, --ask Do not execute the default application but ask which application to run. This does not change the default application. -d, --ask-default Let the user choose a new default program for given files. -n, --no-ask Don't ask the user which program to use. Choose the default program or the first program known to handle the file mimetype. This does not set the default application. -M, --magic-only Do not check for extensions, globs or inode type, only look at the content of the file. This is particularly useful if for some reason you don't trust the name or the extension a file has. --database=mimedir:mimedir:... Force the program to look in these directories for the shared mime-info database. The directories specified by the basedir specification are ignored. -D, --debug Print debug information about how the mimetype was determined. -h, --help -u, --usage Print a help message and exits. -v, --version Print the version of the program and exit. DEPRECATED OPTIONS
-L, --dereference Follow symbolic links. Deprecated because this is the logical default for this command. Ignored silently. BUGS
No known bugs, please mail the author if you find one. See File::MimeInfo::Applications(3) and File::DesktopEntry(3) for some limitations. AUTHOR
Jaap Karssenberg <pardus@cpan.org> COPYRIGHT
Copyright (c) 2002, 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. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. SEE ALSO
mimetype(1), update-mime-database(1), update-desktop-database(1), File::MimeInfo(3), File::MimeInfo::Applications(3) perl v5.14.2 2012-01-05 MIMEOPEN(1p)
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File::MimeInfo(3pm) User Contributed Perl Documentation File::MimeInfo(3pm) NAME
File::MimeInfo - Determine file type SYNOPSIS
use File::MimeInfo; my $mime_type = mimetype($file); DESCRIPTION
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 detemine 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 ealier see the "rehash" methods below. EXPORT
The method "mimetype" is exported by default. The methods "inodetype", "globs", "extensions", "describe", "mimetype_canon" and "mimetype_isa" can be exported on demand. METHODS
"new()" Simple constructor to allow Object Oriented use of this module. If you want to use this, include the package as "use File::MimeInfo ();" to avoid importing sub "mimetype()". "mimetype($file)" Returns a mimetype string for $file, returns undef on failure. This method bundles "inodetype" and "globs". If these methods are unsuccessful the file is read and the mimetype defaults to 'text/plain' or to 'application/octet-stream' when the first ten chars of the file match ascii control chars (white spaces excluded). If the file doesn't exist or isn't readable "undef" is returned. "inodetype($file)" Returns a mimetype in the 'inode' namespace or undef when the file is actually a normal file. "globs($file)" Returns a mimetype string for $file based on the filename and filename extensions. Returns undef on failure. The file doesn't need to exist. Behaviour in list context (wantarray) is unspecified and will change in future releases. "default($file)" This method decides whether a file is binary or plain text by looking at the first few bytes in the file. Used to decide between "text/plain" and "application/octet-stream" if all other methods have failed. 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. "extensions($mimetype)" In list context, returns the list of filename extensions that map to the given mimetype. In scalar context, returns the first extension that is found in the database for this mimetype. "describe($mimetype, $lang)" Returns a description of this mimetype as supplied by the mime info database. You can specify a language with the optional parameter $lang, this should be the two letter language code used in the xml files. Also you can set the global variable $File::MimeInfo::LANG to specify a language. This method returns undef when no xml file was found (i.e. the mimetype doesn't exist in the database). It returns an empty string when the xml file doesn't contain a description in the language you specified. Currently no real xml parsing is done, it trusts the xml files are nicely formatted. "mimetype_canon($mimetype)" Returns the canonical mimetype for a given mimetype. Deprecated mimetypes are typically aliased to their canonical variants. This method only checks aliases, doesn't check whether the mimetype exists. Use this method as a filter when you take a mimetype as input. "mimetype_isa($mimetype)" "mimetype_isa($mimetype, $mimetype)" When give only one argument this method returns a list with mimetypes that are parent classes for this mimetype. 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 implicite subclasses. "rehash()" Rehash the data files. Glob 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. "rehash_aliases()" Rehashes the mime/aliases files. "rehash_subclasses()" Rehashes the mime/subclasses files. DIAGNOSTICS
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). TODO
Make an option for using some caching mechanism to reduce init time. Make "describe()" use real xml parsing ? LIMITATIONS
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). This module does not yet check extended attributes for a mimetype. Patches for this are very welcome. BUGS
Please mail the author when you encounter any bugs. AUTHOR
Jaap Karssenberg <pardus@cpan.org> 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. SEE ALSO
File::BaseDir, File::MimeInfo::Magic, File::MimeInfo::Applications, File::MimeInfo::Rox related CPAN modules File::MMagic freedesktop specifications used http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec <http://www.freedesktop.org/wiki/Specifications/shared-mime-info- spec>, http://www.freedesktop.org/wiki/Specifications/basedir-spec <http://www.freedesktop.org/wiki/Specifications/basedir-spec>, http://www.freedesktop.org/wiki/Specifications/desktop-entry-spec <http://www.freedesktop.org/wiki/Specifications/desktop-entry-spec> freedesktop mime database http://www.freedesktop.org/wiki/Software/shared-mime-info <http://www.freedesktop.org/wiki/Software/shared-mime-info> perl v5.14.2 2012-01-05 File::MimeInfo(3pm)