Implement a Simple Shell Command Parser

Code

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

void parse_shell_input(char *line) {
    int i = 0;
    int in_token = 0;

    while (line[i] != '\0' && line[i] != '\n') {
        if (line[i] == ' ') {
            if (in_token) {
                putchar('\n');
                in_token = 0;
            }
        } else {
            putchar(line[i]);
            in_token = 1;
        }
        i++;
    }
    if (in_token) {
        putchar('\n');
    }
}

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

    parse_shell_input(line);
    return 0;
}

Solving Approach