parsing_utils.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   parsing_utils.c                                    :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ssabbaji <[email protected]>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/07/26 18:17:08 by yabtaour          #+#    #+#             */
/*   Updated: 2022/09/29 17:31:59 by ssabbaji         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "../minishell.h"

char	*ft_substr(char *s, int start, size_t len)
{
	char			*ptr;
	unsigned int	i;
	int				end;

	i = 0;
	end = len + start;
	if (!s)
		return (NULL);
	ptr = (char *)malloc((len + 1) * sizeof(char));
	if (!ptr)
		exit (1);
	if (start <= ft_strlen(s))
	{
		while (start < end && s[start] != '\0')
		{
			ptr[i] = s[start];
			i++;
			start++;
		}
	}
	ptr[i] = '\0';
	return (ptr);
}

void	free_split(char **arguments)
{
	int	i;

	i = 0;
	while (arguments[i])
	{
		free(arguments[i]);
		i++;
	}
	free(arguments);
}

char	*ft_join_args(char *s1, char *s2)
{
	char	*result;

	result = NULL;
	result = ft_strjoin(s1, " ");
	result = ft_strjoin(result, s2);
	return (result);
}

char	*ft_strjoin(char *s1, char *s2)
{
	int		i;
	int		j;
	char	*str;

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