mime.types man page on DragonFly
[printable version]
mime.types(5) Apple Inc. 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 recog‐
nition 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 infor‐
mation.
The rules may be grouped using parenthesis, joined using "+" for a log‐
ical 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 con‐
taining 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 cho‐
sen.
For example, if two types "text/bar" and "text/foo" are defined as
matching the extension "doc", normally the type "text/bar" will be cho‐
sen since its name is alphanumerically smaller than "text/foo". How‐
ever, if "text/foo" also defines a higher priority than "text/bar",
"text/foo" will be chosen instead.
FILES
/usr/local/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 © 2007-2014 by Apple Inc.
12 June 2014 CUPS mime.types(5)
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