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.