读取 C 中每行大括号之间的空格分隔的未知整数数量的文件

Question

I've seen this previous post , but this one doesn't work for my situation.

My situation is down below.

1 { 87 36 135 }
2 { 100 156 167 43 92 174 149 21 }
3 { 144 7 58 149 127 189 5 54 57 }
4 { 128 61 30 4 165 72 117 }
5 { 158 104 196 156 151 162 198 }
6 { 87 98 14 }

My goal is to put these integers between curly brackets into a 2D array. Then, I can manipulate them.

I also tried it in the C version. My idea is to go to the left curly bracket to save the number and go to the next line when it meets the right curly bracket. However, my idea doesn't work for the above situation because the integers my two or three characters.

char str1;
int count = 1;
int no;
char c;
FILE *filepointer;
// filepointer = fopen("~", "r");
filepointer = fopen(argv[1], "r");
printf("\n The content of the file %s is  :\n", argv[1]);
c = fgetc(filepointer);

while (c != EOF)
{
    if(c == '{'){
        int adj = 1;// may be careful
        while (c != '}')
        {
            while (isspace(c = fgetc(filepointer)))
                ;
            if(c == '}')
                break;
            int returnNumber = 0;
            returnNumber = returnNumber * 10 + (c - '0');
            nets[count][adj] = returnNumber;
            adj++;
        }
        count++;
    }
    
    // printf("%c", c);
    c = fgetc(filepointer);
}
no = count;
printf("\n\n");
fclose(filepointer);
for (int i = 1; i < no;i++){
    for (int j = 1; j < MAX_ADJCENT_SIZE;j++){
        printf("%d ", nets[i][j]);
    }
    printf("\n");
}

Thanks for your attention. Please help me, If some condition I do not mention. plz tell me. I will edit ASAP.

Answer 1

You could read all characters that are digits before saving the number and moving on to the next:

int returnNumber = 0;

if (c >= '0' && c <= '9') {
    do {
        returnNumber = returnNumber * 10 + (c - '0');
        c = fgetc(filepointer));
    } while (c >= '0' && c <= '9');

    nets[count][adj] = returnNumber;
    adj++;
}