-static struct userdiff_driver *parse_driver(const char *var,
- const char *value, const char *type)
-{
- struct userdiff_driver *drv;
- const char *dot;
- const char *name;
- int namelen;
-
- if (prefixcmp(var, "diff."))
- return NULL;
- dot = strrchr(var, '.');
- if (dot == var + 4)
- return NULL;
- if (strcmp(type, dot+1))
- return NULL;
-
- name = var + 5;
- namelen = dot - name;
- drv = userdiff_find_by_namelen(name, namelen);
- if (!drv) {
- ALLOC_GROW(drivers, ndrivers+1, drivers_alloc);
- drv = &drivers[ndrivers++];
- memset(drv, 0, sizeof(*drv));
- drv->name = xmemdupz(name, namelen);
- drv->binary = -1;
- }
- return drv;
-}
-