sync

C_09/git_old/ex02/ft_split.c

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_split.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <gbaconni@42lausanne.ch>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/22 18:14:04 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/24 13:00:34 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+static char	*ft_strncpy(char *dest, char *src, unsigned int n)
+{
+	unsigned int	i;
+
+	i = 0;
+	while (i < n && src[i] != '\0')
+	{
+		dest[i] = src[i];
+		i++;
+	}
+	while (i < n)
+	{
+		dest[i] = '\0';
+		i++;
+	}
+	return (dest);
+}
+
+static int	ft_is_charset(char c, char *charset)
+{
+	char	*p_charset;
+	int		r;
+
+	r = 0;
+	p_charset = charset;
+	while (*p_charset != '\0')
+		r |= (*p_charset++ == c);
+	return (r);
+}
+
+static int	ft_split_len(char *str, char *charset)
+{
+	char	*p_str;
+	int		size;
+
+	size = 2;
+	p_str = str;
+	while (*p_str != '\0')
+	{
+		if (ft_is_charset(*p_str++, charset) == 1)
+			size++;
+	}
+	return (size);
+}
+
+char	*ft_copy(char *str, int size)
+{
+	char	*result;
+
+	result = (char *) malloc((size + 1) * sizeof(char));
+	if (size > 0)
+		ft_strncpy(result, str, size);
+	else
+		result[0] = '\0';
+	return (result);
+}
+
+char	**ft_split(char *str, char *charset)
+{
+	char	**strs;
+	char	*start;
+	int		size;
+	int		i;
+
+	size = ft_split_len(str, charset);
+	strs = malloc((size) * sizeof(strs));
+	start = str;
+	i = 0;
+	while (1)
+	{
+		if (ft_is_charset(*str, charset) == 1 || *str == '\0')
+		{
+			size = str - start;
+			if (size > 0)
+				strs[i++] = ft_copy(start, size);
+			start = str + 1;
+			if (*str == '\0')
+				break ;
+		}
+		str++;
+	}
+	strs[i] = ft_copy(str, 0);
+	return (strs);
+}