101. Split a String Using Delimiter

#include <stdio.h>
#include <stdint.h>

void split_string(const char *str, char delimiter, char tokens[10][20], uint8_t *count) {
    *count = 0;
    int index = 0;

    // special case for empty string
    if (*str == '\0') {
        return;
    }

    // process string
    while (*str) {
        if (*str == delimiter) {
            tokens[(*count)++][index] = '\0';
            index = 0;
        } else {
            tokens[*count][index++] = *str;
        }
        str++;
    }

    // close last token read
    tokens[(*count)++][index] = '\0';
}

int main() {
    char str[101];
    char delimiter;
    fgets(str, sizeof(str), stdin);
    scanf(" %c", &delimiter);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '\n') { str[i] = '\0'; break; }
        i++;
    }

    char tokens[10][20];
    uint8_t count = 0;

    split_string(str, delimiter, tokens, &count);

    for (uint8_t i = 0; i < count; i++) {
        printf("%s\n", tokens[i]);
    }

    return 0;
}