IoT C언어 0710 - EX13_3

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

char *my_token(char *ps);

int main(void)
{
    char str[80];
    char *p;

    printf("문장 입력 : ");
    fgets(str,sizeof(str),stdin);
    while((p = my_token(str)) != NULL)
    {
        printf("%s\n", p);
    }

    return 0;
}

char *my_token(char *ps)
{
    char *end = 0;
    static char word[20];
    int i=0;

    for(int ec=0; ec<20; ec++)
        word[ec] = '\0';
    if(ps[0] == '\0') return NULL;
    while(1)
    {
        if(ps[i] == ' ')
        {
            i++;
            break;
        }
        if(ps[i] =='\0')
        {
            word[i-1]=0;
            break;
        }
        word[i] = ps[i];
        i++;
    }
    stpcpy(ps,ps+i);
    return word;
}