c - 从c中的文件中读取多行(不同长度)

Question

我想将文件的以下内容加载到数组中。 文件内容:

[1,2,3,4,5]
[2,3]
[2]
[1,4,5,6,8,9]

现在，我想将第一行加载到整数数组 'a' ( a ={1,2,3,4,5}) 中并执行一些操作。免费的获取下一行并加载到 'a' (a = {2,3}) 并执行一些操作等等......直到文件末尾。

注意:每行可以有不同的数字数量。(我们不知道每行的数字数量)

如何扫描每一行并仅获取数字并将它们存储在数组中？
我的代码:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h> 
#include <sys/stat.h>
#include <fcntl.h>

#define DELIM " \r\n\t!@#$%^&*()_+-={}|\\:\"'?¿/.,<>’¡º×÷‘"

int main(int argc, char *argv[]){
    int lineIdx = 0;
    int charIdx = 0;
    int TERMINATOR = 1753775;
    char *token = "tmp";
    char *orLine = malloc(4096 * sizeof(char));
    char **importedLine = malloc(4096 * sizeof(orLine));
    int tokenizedArray[100][100];// = malloc(sizeof(orLine * numOfLines));

    FILE *f = fopen(argv[1], "r");

    while(fscanf(f, "%s", orLine) != EOF){
        importedLine[lineIdx] = orLine;
        for(charIdx = 0; charIdx < strlen(importedLine[lineIdx]); charIdx++){
            importedLine[lineIdx][charIdx] = importedLine[(lineIdx)][(charIdx+1)];
        }
        importedLine[lineIdx][(strlen(importedLine[lineIdx])-1)] = NULL;
        token = strtok(importedLine[lineIdx], ", ");
        charIdx = 0;
        while(token != NULL){
            tokenizedArray[lineIdx][charIdx] = atoi(token);
            token = strtok(NULL, ", ");
            charIdx++;
        }
        tokenizedArray[lineIdx][(charIdx)] = TERMINATOR;
        lineIdx++;
    }
    tokenizedArray[(lineIdx)][0] = TERMINATOR;
    fclose(f);
    lineIdx = 0;
    charIdx = 0;
    while(tokenizedArray[lineIdx][charIdx] != TERMINATOR){
        while(tokenizedArray[lineIdx][charIdx] != TERMINATOR){
            printf("%d ",tokenizedArray[lineIdx][charIdx]);
            charIdx++;
        }
        lineIdx++;
        charIdx = 0;
        printf("\n");
    }
    return 0;
}

提前致谢

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef int Type;

typedef struct vector {
    size_t size;
    size_t capacity;
    Type *array;
} Vector;

Vector *vec_make(void){
    Vector *v = malloc(sizeof(*v));
    if(v){
        v->size = 0;
        v->capacity=16;
        v->array = malloc(v->capacity * sizeof(Type));
    }
    return v;
}

void vec_free(Vector *v){
    free(v->array);
    free(v);
}

void vec_add(Vector *v, Type value){
    v->array[v->size++] = value;
    if(v->size == v->capacity){
        Type *temp;
        temp = realloc(v->array, sizeof(Type)*(v->capacity += 16));
        if(!temp){
            perror("realloc at vec_add");
            vec_free(v);
            exit(-1);
        }
        v->array = temp;
    }
}

int main(int argc, char *argv[]){
    if(argc != 2){
        fprintf(stderr, "Usage : %s filename\n", argv[0]);
        exit(EXIT_FAILURE);
    }

    FILE *f = fopen(argv[1], "r");
    if(f == NULL){
        perror("fopen");
        exit(EXIT_FAILURE);
    }

    char line[4096];
    while(fgets(line, sizeof line, f)){
        static const char *delimiter = "[,] \t\n";
        Vector *v = vec_make();

        char *number = strtok(line, delimiter);//Format don't check
        for(; number; number = strtok(NULL, delimiter)){
            vec_add(v, atoi(number));
        }
        //some operation : print out
        int size = v->size;
        int *a = v->array;
        for(int i = 0; i < size; ++i){
            if(i)
                putchar(',');
            printf("%d", a[i]);
        }
        putchar('\n');
        vec_free(v);
    }
    fclose(f);
    return 0;
}