New key maps can be added by creating a class initialization function
and a lookup function.
These are then added to the routine
setupmaps.
The initialization function is called as
- xxx_map_init(MAP *map, char *mapname, char *args)
The
map is an internal data structure.
The
mapname is the name of the map (used for error messages).
The
args is a pointer to the rest of the configuration file line;
flags and filenames can be extracted from this line.
The initialization function must return
if it successfully opened the map,
otherwise.
The lookup function is called as
- xxx_map_lookup(MAP *map, char buf[], int bufsize, char **av, int *statp)
The
map defines the map internally.
The parameters
buf and
bufsize have the input key.
This may be (and often is) used destructively.
The
av is a list of arguments passed in from the rewrite line.
The lookup function should return a pointer to the new value.
IF the map lookup fails,
*statp should be set to an exit status code;
in particular, it should be set to
if recovery is to be attempted by the higher level code.
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Last modified: Friday April 02, 1999.