int readBoundary()

in src/apps/applib/lib/utility.c [126:178]
42 lines of code
10 McCabe index (conditional complexity)

int readBoundary(FILE* f, GeoBoundary* b) {
    char buff[BUFF_SIZE];

    // get the first line, which should be a "{"
    if (!fgets(buff, BUFF_SIZE, f)) {
        if (feof(stdin)) {
            return EOF;
        } else {
            printf("reading GeoBoundary from input");
            return -1;
        }
    }

    if (buff[0] != '{') {
        printf("missing GeoBoundary {");
        return -2;
    }

    // now read the verts

    b->numVerts = 0;
    while (1) {
        if (!fgets(buff, BUFF_SIZE, f)) {
            printf("reading GeoBoundary from input");
            return -3;
        }

        if (buff[0] == '}') {
            if (b->numVerts == 0) {
                printf("reading empty cell boundary");
                return -4;
            } else {
                break;
            }
        }

        if (b->numVerts == MAX_CELL_BNDRY_VERTS) {
            printf("too many vertices in GeoBoundary from input");
            return -5;
        }

        double latDegs, lonDegs;
        if (sscanf(buff, "%lf %lf", &latDegs, &lonDegs) != 2) {
            printf("parsing GeoBoundary from input");
            return -6;
        }

        setGeoDegs(&b->verts[b->numVerts], latDegs, lonDegs);
        b->numVerts++;
    }

    return 0;
}