first commit of v2 ft_printf

42-libft/ft_split.c

@@ -0,0 +1,81 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_split.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/11/06 17:02:58 by dgaillet          #+#    #+#             */
+/*   Updated: 2025/11/12 13:30:49 by dgaillet         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static size_t	strs_size(const char *s, unsigned char c)
+{
+	int		i;
+	int		j;
+
+	i = 0;
+	j = 0;
+	while (s[j])
+	{
+		if ((s[j] != c && j == 0) || (s[j] != c && s[j - 1] == c))
+			i++;
+		j++;
+	}
+	return (i);
+}
+
+static int	next_match(char	*str, unsigned char c)
+{
+	int	i;
+
+	i = 0;
+	while (str[i] && str[i] != c)
+		i++;
+	return (i);
+}
+
+static void	clear_strs(char **strs)
+{
+	size_t	i;
+
+	i = 0;
+	while (strs[i])
+	{
+		free(strs[i]);
+		i++;
+	}
+	free(strs);
+}
+
+char	**ft_split(char const *s, char c)
+{
+	char	**strs;
+	int		i;
+	int		j;
+
+	if (!s)
+		return (NULL);
+	strs = ft_calloc(sizeof(char *), strs_size(s, c) + 1);
+	if (!strs)
+		return (NULL);
+	i = 0;
+	j = 0;
+	while (s[j])
+	{
+		if ((s[j] != c && j == 0) || (s[j] != c && s[j - 1] == c))
+		{
+			strs[i] = ft_substr(&s[j], 0, next_match((char *) &s[j], c));
+			if (!strs[i++])
+			{
+				clear_strs(strs);
+				return (NULL);
+			}
+		}
+		j++;
+	}
+	return (strs);
+}