MIME::Type(3pm)                User Contributed Perl Documentation                MIME::Type(3pm)



NAME
       MIME::Type - description of one MIME type

SYNOPSIS
        use MIME::Types;
        my $mimetypes = MIME::Types->new;
        my MIME::Type $plaintext = $mimetypes->type('text/plain');
        print $plaintext->mediaType;   # text
        print $plaintext->subType;     # plain

        my @ext = $plaintext->extensions;
        print "@ext"                   # txt asc c cc h hh cpp

        print $plaintext->encoding     # 8bit
        if($plaintext->isBinary)       # false
        if($plaintext->isAscii)        # true
        if($plaintext->equals('text/plain') {...}
        if($plaintext eq 'text/plain') # same

        print MIME::Type->simplified('x-appl/x-zip') #  'appl/zip'

DESCRIPTION
       MIME types are used in MIME entities, for instance as part of e-mail and HTTP traffic.
       Sometimes real knowledge about a mime-type is need.  Objects of "MIME::Type" store the
       information on one such type.

OVERLOADED
       overload: string comparison
           When a MIME::Type object is compared to either a string or another MIME::TYpe, the
           equals() method is called.  Comparison is smart, which means that it extends common
           string comparison with some features which are defined in the related RFCs.

       overload: stringification
           The stringification (use of the object in a place where a string is required) will
           result in the type name, the same as type() returns.

           example: use of stringification

            my $mime = MIME::Type->new('text/html');
            print "$mime\n";   # explicit stringification
            print $mime;       # implicit stringification

METHODS
   Initiation
       MIME::Type->new(%options)
           Create (instantiate) a new MIME::Type object which manages one mime type.

            -Option    --Default
             encoding    <depends on type>
             extensions  []
             simplified  <derived from type>
             system      undef
             type        <required>

           encoding => '7bit'|'8bit'|'base64'|'quoted-printable'
             How must this data be encoded to be transported safely.  The default depends on the
             type: mimes with as main type "text/" will default to "quoted-printable" and all
             other to "base64".

           extensions => REF-ARRAY
             An array of extensions which are using this mime.

           simplified => STRING
             The mime types main- and sub-label can both start with "x-", to indicate that is a
             non-registered name.  Of course, after registration this flag can disappear which
             adds to the confusion.  The simplified string has the "x-" thingies removed and are
             translated to lower-case.

           system => REGEX
             Regular expression which defines for which systems this rule is valid.  The REGEX is
             matched on $^O.

           type => STRING
             The type which is defined here.  It consists of a type and a sub-type, both case-
             insensitive.  This module will return lower-case, but accept upper-case.

   Attributes
       $obj->encoding()
           Returns the type of encoding which is required to transport data of this type safely.

       $obj->extensions()
           Returns a list of extensions which are known to be used for this mime type.

       $obj->simplified( [$string] )
       MIME::Type->simplified( [$string] )
           Returns the simplified mime type for this object or the specified STRING.  Mime type
           names can get officially registered.  Until then, they have to carry an "x-" preamble
           to indicate that.  Of course, after recognition, the "x-" can disappear.  In many
           cases, we prefer the simplified version of the type.

           example: results of simplified()

            my $mime = MIME::Type->new(type => 'x-appl/x-zip');
            print $mime->simplified;                     # 'appl/zip'

            print $mime->simplified('text/PLAIN');       # 'text/plain'
            print MIME::Type->simplified('x-xyz/x-abc'); # 'xyz/abc'

       $obj->system()
           Returns the regular expression which can be used to determine whether this type is
           active on the system where you are working on.

       $obj->type()
           Returns the long type of this object, for instance 'text/plain'

   Knowledge
       $obj->equals($string|$mime)
           Compare this mime-type object with a STRING or other object.  In case of a STRING,
           simplification will take place.

       $obj->isAscii()
           Old name for isText().

       $obj->isBinary()
           Returns true when the type is not known to be text.  See isText().

       $obj->isExperimental()
           [2.00] Return "true" when the type is defined for experimental use; the subtype starts
           with "x."

       $obj->isPersonal()
           [2.00] Return "true" when the type is defined by a person for private use; the subtype
           starts with "prs."

       $obj->isRegistered()
           Mime-types which are not registered by IANA nor defined in RFCs shall start with an
           "x-".  This counts for as well the media-type as the sub-type.  In case either one of
           the types starts with "x-" this method will return false.

       $obj->isSignature()
           Returns true when the type is in the list of known signatures.

       $obj->isText()
           [2.05] All types which may have the charset attribute, are text.  However, there is
           currently no record of attributes in this module... so we guess.

       $obj->isVendor()
           [2.00] Return "true" when the type is defined by a vendor; the subtype starts with
           "vnd."

       $obj->mediaType()
           The media type of the simplified mime.  For 'text/plain' it will return 'text'.

           For historical reasons, the 'mainType' method still can be used to retrieve the same
           value.  However, that method is deprecated.

       $obj->subType()
           The sub type of the simplified mime.  For 'text/plain' it will return 'plain'.

DIAGNOSTICS
       Error: Type parameter is obligatory.
           When a MIME::Type object is created, the type itself must be specified with the "type"
           option flag.

SEE ALSO
       This module is part of MIME-Types distribution version 2.09, built on September 14, 2014.
       Website: http://perl.overmeer.net/mimetypes/

LICENSE
       Copyrights 1999,2001-2014 by [Mark Overmeer]. For other contributors see ChangeLog.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.  See http://www.perl.com/perl/misc/Artistic.html



perl v5.20.1                                2014-09-14                            MIME::Type(3pm)