-static void
-incratio(const char *arg, double *ratio, double def) {
- double delta;
-
- if(lt->arrange != tile)
- return;
- if(!arg)
- *ratio = def;
- else {
- if(1 == sscanf(arg, "%lf", &delta)) {
- if(delta + (*ratio) < .1 || delta + (*ratio) > 1.9)
- return;
- *ratio += delta;
- }
- }
- lt->arrange();
-}
-