/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   b_alias_register.c                                 :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rbousset <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/02/14 17:19:27 by rbousset          #+#    #+#             */
/*   Updated: 2020/02/14 17:19:29 by rbousset         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include <libft.h>
#ifdef __linux__
# include <linux/limits.h>
#else
# include <limits.h>
#endif

#include "d_define.h"
#include "s_struct.h"
#include "u_alias.h"

static void	b_cpy_alias(char name[], char *ptr, char value[])
{
	char	*rptr;
	char	tmp;

	rptr = ptr;
	while (*rptr != C_NUL && ft_iswhitespace(*rptr) == TRUE)
		rptr++;
	tmp = *(rptr + ft_strlen(name));
	*(rptr + ft_strlen(name)) = C_NUL;
	if (ft_strncmp(rptr, name, ft_strlen(name) + 1) == 0) {
		*(rptr + ft_strlen(name)) = tmp;
		ft_strlcpy(value, ptr, ARG_MAX);
		ft_memmove(value + (rptr - ptr) + 1, value + (rptr - ptr),
			ft_strlen(value + (rptr - ptr)) + 1);
		*(value + (rptr - ptr)) = C_BACKS;
	}
	else {
		*(rptr + ft_strlen(name)) = tmp;
		ft_strlcpy(value, ptr, ARG_MAX);
	}
}

void		b_register_arg(const char arg[], t_msh *msh)
{
	char	name[255];
	char	*ptr;
	char	value[ARG_MAX];

	ptr = (char*)arg;
	while (*ptr != C_NUL && *ptr != C_EQUALS)
	{
		ptr++;
	}
	if (*ptr == C_EQUALS)
	{
		ft_strlcpy(name, arg, (ptr - arg < 255) ? ((ptr - arg) + 1) : (255));
		ptr += 1;
		b_cpy_alias(name, ptr, value);
		u_set_alias_value(name, value, msh);
	}
}