+ break;
+ case 'c':
+ {
+ Debug("Reading paint colour");
+ for (int j = 1; j <= 4; ++j)
+ {
+ if (i+j >= argc)
+ Fatal("No %d colour component following -c switch", j);
+ char * e;
+ float * comp = (j == 1) ? (&c.r) : ((j == 2) ? (&c.g) : ((j == 3) ? (&c.b) : &(c.a)));
+ *comp = strtof(argv[i+j], &e);
+ if (*e != '\0')
+ Fatal("Colour component %d not a valid float", j);
+ }
+ i += 4;
+ break;
+ }
+ case 'b':
+ {
+ Debug("Reading view bounds");
+ for (int j = 1; j <= 4; ++j)
+ {
+ if (i+j >= argc)
+ Fatal("No %d bounds component following -b switch", j);
+ char * e;
+ b[j-1] = strtof(argv[i+j], &e);
+ if (*e != '\0')
+ Fatal("Bounds component %d not a valid float", j);
+ }
+ i += 4;
+ break;
+ }
+ }
+ }
+
+ if (input_filename != NULL)
+ {
+ doc.Load(input_filename);
+ }
+ else