NAME

       mime.types - mime type description file for cups

DESCRIPTION

       The mime.types file defines the recognized file types.

       Additional  file  types  can  be  added  to  mime.types  or  (preferably) in additional files in the CUPS
       configuration directory with the extension ".types".

       Each line in the mime.types file is a comment, blank, or rule  line.  Comment  lines  start  with  the  #
       character.  Rule  lines  start  with  the  MIME type name and are optionally followed by a series of file
       recognition rules that are used to automatically identify print and web files:

           super/type rule [ ... ruleN]
       MIME type names are case-insensitive and are sorted in ascending alphanumeric order for the  purposes  of
       matching. See the "TYPE MATCHING AND PRIORITY" section for more information.

       The  rules may be grouped using parenthesis, joined using "+" for a logical AND and "," or whitespace for
       a logical OR, and negated using "!".

RULES

       Rules take two forms - a filename extension by itself and functions with test values inside  parenthesis.
       The following functions are available:

       match("pattern")
            Pattern match on filename

       ascii(offset,length)
            True if bytes are valid printable ASCII (CR, NL, TAB, BS, 32-126)

       printable(offset,length)
            True if bytes are printable 8-bit chars (CR, NL, TAB, BS, 32-126, 128-254)

       priority(number)
            Specifies  the relative priority of this MIME type. The default priority is 100.  Larger values have
            higher priority while smaller values have lower priority.

       string(offset,"string")
            True if bytes are identical to string

       istring(offset,"string")
            True if a case-insensitive comparison of the bytes is identical

       char(offset,value)
            True if byte is identical

       short(offset,value)
            True if 16-bit integer is identical

       int(offset,value)
            True if 32-bit integer is identical

       locale("string")
            True if current locale matches string

       contains(offset,range,"string")
            True if the range contains the string

STRING CONSTANTS

       String constants can be specified inside quotes ("") for strings containing whitespace and angle brackets
       (<>) for hexadecimal strings.

TYPE MATCHING AND PRIORITY

       When CUPS needs to determine the MIME type of a given file, it checks every  MIME  type  defined  in  the
       .types  files.  When two types have the same matching rules, the type chosen will depend on the type name
       and priority, with higher- priority types being used over lower-priority ones. If the types have the same
       priority, the type names are sorted alphanumerically in ascending order and the first type is chosen.

       For example, if two types "text/bar" and "text/foo" are defined as matching the extension "doc", normally
       the type "text/bar" will be chosen since its name is alphanumerically smaller than  "text/foo".  However,
       if "text/foo" also defines a higher priority than "text/bar", "text/foo" will be chosen instead.

SEE ALSO

       classes.conf(5), cupsd(8), cupsd.conf(5), mime.convs(5), printers.conf(5),
       http://localhost:631/help

COPYRIGHT

       Copyright 2007-2013 by Apple Inc.

16 May 2009                                           CUPS                                         mime.types(5)