get_next_line_utils_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils_bonus.c                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jcampagn <jcampagn@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/12/01 12:01:58 by jcampagn          #+#    #+#             */
/*   Updated: 2021/12/05 15:21:52 by jcampagn         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line_bonus.h"

size_t	ft_strlen(const char *s)
{
	size_t	i;

	i = 0;
	if (!s)
		return (0);
	while (s && s[i])
		i++;
	return (i);
}

char	*ft_strchr(char *s, int c)
{
	int	i;

	i = 0;
	if (!s)
		return (0);
	if (c == '\0')
		return ((char *)&s[ft_strlen(s)]);
	while (s[i] != '\0')
	{
		if (s[i] == (char) c)
			return ((char *)&s[i]);
		i++;
	}
	return (0);
}

char	*ft_get_line(char *left_str)
{
	int		i;
	char	*str;

	i = 0;
	if (!left_str[i])
		return (NULL);
	while (left_str[i] && left_str[i] != '\n')
		i++;
	str = (char *)malloc(sizeof(char) * (i + 2));
	if (!str)
		return (NULL);
	i = 0;
	while (left_str[i] && left_str[i] != '\n')
	{
		str[i] = left_str[i];
		i++;
	}
	if (left_str[i] == '\n')
	{
		str[i] = left_str[i];
		i++;
	}
	str[i] = '\0';
	return (str);
}

char	*ft_new_left_str(char *left_str)
{
	int		i;
	int		j;
	char	*str;

	i = 0;
	while (left_str[i] && left_str[i] != '\n')
		i++;
	if (!left_str[i])
	{
		free(left_str);
		return (NULL);
	}
	str = (char *)malloc(sizeof(char) * (ft_strlen(left_str) - i + 1));
	if (!str)
		return (NULL);
	i++;
	j = 0;
	while (left_str[i])
		str[j++] = left_str[i++];
	str[j] = '\0';
	free(left_str);
	return (str);
}

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*str;
	int		i;
	size_t	len;

	str = 0;
	str = malloc(ft_strlen((char *)s1) + ft_strlen((char *)s2) + 1);
	if (!str)
		return (NULL);
	len = 0;
	while (s1 && s1[len])
	{
		str[len] = s1[len];
		len++;
	}
	i = -1;
	while ((char *)s2 && s2[++i])
		str[len++] = s2[i];
	str[len] = '\0';
	return (str);
}