parsing formatted data

[yashmodi]

hi everyone,
it would be great if someone could help me with this code. I have to parse the following data stored in a text file.
30 30
9 2.5 0.8654
I N (5,9) (5,52) (13,52) (13,9)
C N (16,9) (16,21) (24,21) (24,9)

would i need to tokenize the data first?? . I am coding in C and I parsed the first two lines, storing them in local variables using something like:

FILE *nlfp;
if( (nlfp=fopen(argv[1], "r"))==NULL) {
        fprintf(stderr, "cannot open %s\n", argv[1]);
        exit(-1);
    }
fscanf(nlfp, "%d %d %d %f %f %f %f",  &gridX,
        &gridY, &gaussFilterSize, &sigma, &normF, &sigA, &sigR);
 

but i am not to sure, how to read the remaining portion.
Thanks a lot..

[horace1]

it depends what the lines represent?

I N (5,9) (5,52) (13,52) (13,9)
C N (16,9) (16,21) (24,21) (24,9)

is each line a string of characters or are the number pairs simple integers or complex numbers, e.g. (5,9) could 5 + j9? What is this information suposed to be?

also the lines

30 30
9 2.5 0.8654

contans 5 numbers whereas your scanf

fscanf(nlfp, "%d %d %d %f %f %f %f", &gridX,
&gridY, &gaussFilterSize, &sigma, &normF, &sigA, &sigR);

attempts to read 7 numbers (3 integer and 4 float)