mime.types(5)

NAME

   mime.types - mime type description file for cups

DESCRIPTION

   The mime.types file defines the recognized file types.

   Additional  file types are specified in files with the extension .types
   in the CUPS configuration directory.

   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 media type and  are  optionally  followed  by  a  series  of  file
   recognition rules:

       mime/type [ rule ... rule ]

   Rules can be extended over multiple lines using the backslash character
   (\):

       mime/type [ really-really-really-long-rule ... \
         rule ]

   MIME media types specified by the mime/type field 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, joined using "," 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")
        True if the filename matches the given shell wildcard pattern.

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

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

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

   string(offset,"string")
        True if the bytes starting at offset are identical to string.

   istring(offset,"string")
        True  if the bytes starting at offset match string without respect
        to case.

   char(offset,value)
        True if the byte at offset is identical to value.

   short(offset,value)
        True if the 16-bit big-endian integer at offset  is  identical  to
        value.

   int(offset,value)
        True  if  the  32-bit big-endian integer at offset is identical to
        value.

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

   contains(offset,range,"string")
        True if the bytes starting at  offset  for  range  bytes  contains
        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 media type of a  given  file,  it
   checks  every MIME media type defined in the .types files.  When two or
   more types match a given file, 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.

FILES

   /etc/cups - Typical CUPS configuration directory.

EXAMPLES

   Define two MIME media types for raster data, with one  being  a  subset
   with higher priority:

       application/vnd.cups-raster  string(0,"RaSt") string(0,"tSaR") \
                                     string(0,"RaS2") string(0,"2SaR") \
                                     string(0,"RaS3") string(0,"3SaR")

       image/pwg-raster              string(0,"RaS2") + \
                                     string(4,PwgRaster<00>) priority(150)

SEE ALSO

   cups-files.conf(5),     cupsd.conf(5),     cupsd(8),     cupsfilter(8),
   mime.convs(5), CUPS Online Help (http://localhost:631/help)

COPYRIGHT

   Copyright  2007-2016 by Apple Inc.

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Free and Open Source Software