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

#define STRING "1\n2\n3\n4\n5\n6\n7"

static
char **gnokii_strsplit(const char *string, const char *delimiter, int tokens)
{
	const char *left = string;
	char *tmp, *str;
	int count = 0;
	char **strings;

	if (!string || !delimiter || !tokens)
		return NULL;

	strings = NULL;

	while ((tmp = strstr(left, delimiter)) != NULL) {
		if (tokens > 0 && count == tokens)
			break;
		str = malloc((tmp - left) + 1);
		memset(str, 0, (tmp - left) + 1);
		memcpy(str, left, tmp - left);

		/* +3 =
		 * +1 for the current string
		 * +1 for the remainder
		 * +1 for the null termination
		 */
		strings = realloc(strings, sizeof(char *) * (count + 3));
		printf ("setting strings[%d] to %s\n", count, str);
		strings[count] = str;
		left = tmp + strlen(delimiter);
		count++;
	}

	strings[count] = strdup(left);
	strings[count+1] = NULL;

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

	return strings;
}

static void
gnokii_strfreev (char **strings)
{
	int i;

	for (i = 0; strings[i] != NULL; i++)
		free (strings[i]);
	free (strings);
}

int main (int argc, char **argv)
{
	char **lines;
	int i;

	lines = gnokii_strsplit (STRING, "\n", -1);
	for (i = 0; lines[i] != NULL; i++)
		printf ("line %d: %s\n", i, lines[i]);
	gnokii_strfreev (lines);
	return 0;
}