mime.types(5) manual page
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mime.types - mime type description file for cups
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
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 can be specified inside quotes ("") for strings
containing whitespace and angle brackets (<>) for hexadecimal strings.
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.
/etc/cups - Typical CUPS configuration directory.
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)
cups-files.conf(5)
, cupsd.conf(5)
, cupsd(8)
, cupsfilter(8)
, mime.convs(5)
,
CUPS Online Help (http://localhost:631/help)
Copyright [co] 2007-2014
by Apple Inc.
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