Implement a Simple Shell Command Parser

Code

#include <stdio.h>
#include <ctype.h>

void parse_shell_input(char *line) {
char s[101];
int i=0;
int space=0;
while(*line !='\0'){
    if(*line!=' '){
        s[i]=*line;
        i++;
        line++;
        space=0;
    }else if(isalnum(*line)==0){
        if(space==0) {     
        s[i]='\0';
        printf("%s\n",s);
        i=0;
        line++;
        space=1;
        }else{line++;}
    }
    }
    s[i]='\0';
    printf("%s\n",s);
}

int main() {
    char line[101];
    fgets(line, sizeof(line), stdin);

    parse_shell_input(line);
    return 0;
}

Solving Approach