Add libft as dirHEADmaster

1 files changed, 61 insertions, 0 deletions

diff --git a/libft/ft_strtrim.c b/libft/ft_strtrim.c
new file mode 100644
index 0000000..9caf12f
--- /dev/null
+++ b/libft/ft_strtrim.c
@@ -0,0 +1,61 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strtrim.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/03/07 10:24:17 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/03/10 14:03:13 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static int	is_in(char c, const char *str)
+{
+	while (*str)
+	{
+		if (c == *str)
+			return (1);
+		else
+			str++;
+	}
+	return (0);
+}
+
+char	*ft_strtrim(char const *s1, char const *set)
+{
+	int		i;
+	char	*start;
+	char	*end;
+	char	*result;
+
+	start = (char *)s1;
+	while (is_in(*start, set))
+		start++;
+	i = ft_strlen(s1);
+	end = (char *)s1 + i - 1;
+	while (end > start && is_in(*end, set))
+		end--;
+	i = end - start + 1;
+	result = malloc(i + 1);
+	if (result)
+	{
+		result[i] = '\0';
+		i = 0;
+		while (start <= end)
+			result[i++] = *(start++);
+		return (result);
+	}
+	return (0);
+}
+
+/* #include <stdio.h> */
+
+/* int	main(void) */
+/* { */
+/* 	char	s1[] = " \t   \t  \t  "; */
+
+/* 	printf("%s\n", ft_strtrim(s1, " \t")); */
+/* } */