基于C语言的开源csv解析库MiniCSV的使用示例

#include <stdio.h>
#include <stdlib.h>
#include "stdint.h"
#include "minicsv.h"
int display_cols(char **cols, uint8_t cols_count)
{
    printf("cols=%d: ", cols_count);
    for(int i = 0; i < cols_count; i++)
        printf("[%s]\t", cols[i]);
    printf("\n");
    return 0;
}
int main(void)
{
    char  *cols[7];     //每行逗号的个数+1
    char   str_csv[] = "line1, aa, bb, cc, dd, ee, ff\nline2, 11, 22, 33, 44\nline3, 1,2,3,4,5";
    char  *r = str_csv;
    uint32_t cols_count;        //size_t or uint32_t
    uint8_t cols_max = sizeof(cols) / sizeof(cols[0]);  //最多解析多少列
    /*
        line1, aa, bb, cc, dd, ee, ff
        line2, 11, 22, 33, 44
        line3, 1,2,3,4,5
    */
    printf("csv string: \n%s\n\n", r);
    //解析第1行
    while(*r != NULL)
    {
        r = minicsv_parse_line(r, cols, &cols_count, cols_max);
        //cols_count=当前行解析出的列数
        display_cols(cols, cols_count);
    }
    printf("\nfinish!\n");
    return 0;
}

#include "stdio.h"
#include "stdlib.h"
#include "stdint.h"
#include "minicsv.h"
#define CSV_PATH    "./demo.csv"
/*
    序号,姓名,性别,年龄,职位,兼任,备注
    1,张珊,女,29,产品经理
    2,李思,男,31,架构师,兼产品副经理,试用
    3,王伟,男,27,开发工程师
    4,赵丽,女,27,测试工程师,,实习
*/
int display_cols(char **cols, uint8_t cols_count);
int main()
{
    FILE *fp = fopen(CSV_PATH, "rw");
    char buf[200];
    char *cols[10];
    uint8_t cols_max = sizeof(cols) / sizeof(cols[0]);
    uint32_t cols_count = 0;
    uint32_t line = 0;
    while(fgets(buf, sizeof(buf) / sizeof(buf[0]), fp) != NULL)
    {
        printf("line = %d, buf = %s", line, buf);
        minicsv_parse_line(buf, cols, &cols_count, cols_max);
        line++;
        display_cols(cols, cols_count);
        memset(buf, 0, sizeof(buf) / sizeof(buf[0]));
    }
    printf("finish! line count = %d\n", line);
    return 0;
}
int display_cols(char **cols, uint8_t cols_count)
{
    printf("cols=%d ", cols_count);
    for(int i = 0; i < cols_count; i++)
        printf("[%s] ", cols[i]);
    printf("\n\n");
    return 0;
}