tokens.c

#include "shell.h"
/**
 * get_tokens - Tokenizes a string based on delimiters.
 * @str: The input string to tokenize.
 * @delim: The delimiter characters used for tokenization.
 * Return: An array of tokenized strings or NULL if an error occurs.
 */
char **get_tokens(char *str, char *delim)
{
	int i, j, capacity;
	char *token, *str_copy;
	char **tokens;

	i = 0;
	capacity = _strlen(str);
	str_copy = _strdup(str);
	if (str_copy == NULL)
		return (NULL);
	tokens = malloc(capacity * sizeof(char *));
	if (tokens == NULL)
	{
		free(str_copy);
		return (NULL);
	}
	token = strtok(str_copy, delim);
	while (token != NULL)
	{
		tokens[i] = _strdup(token);
		if (tokens[i] == NULL)
		{
			for (j = 0; j < i; j++)
			{
				free(tokens[j]);
			}
			free(tokens);
			free(str_copy);
			return (NULL);
		}
		token = strtok(NULL, delim);
		i++;
	}
	tokens[i] = NULL;
	free(str_copy);
	return (tokens);
}