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A command class(3) definition describes those aspects of zlibc's behavior that depend on the name of the datafile which is being accessed. Command classes are identified by a name which is matched against the class parameter from the commands. The class name should be enclosed between quotes both in the commands line and in the class definition.
The class section contains descriptions of different command classes (i.e descriptions how datafiles should be uncompressed). Each class definition begins with a line of the following format:
The class id is the same string as the one used in the commands line. The remaining lines of a class definition are as follows:
[ [ criterion ] [
The following example shows the definition of the class used for X-servers.
# X uses tmp files in its own directories. class "X" subdir "/usr/X11R6" usetmpfile subdir "/usr/X386" usetmpfile subdir "/usr/lib/X11" usetmpfile showpipe
This says that all compressed files who are in a subdirectory below
`/usr/X11R6', `/usr/X386' or `/usr/lib/X11' are
decompressed using temporary files (
usetmpfile), and that files
from other directories are decompressed using pipes (
The following examples illustrates a command class, named
which always uses temporary files for decompression
# generic class which uses temp files for all files. class "nopipe" usetmpfile
184.108.40.206 File selection Criteria To which data files does this line apply 220.127.116.11 Mode How zlibc behaves for the files matching the criterion
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