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yabtaour
GitHub Repository: yabtaour/Minishell-42
 Path: blob/main/expanding/expanding_utils.c
1407 views
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/* ************************************************************************** */

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/*                                                                            */

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/*                                                        :::      ::::::::   */

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/*   expanding_utils.c                                  :+:      :+:    :+:   */

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/*                                                    +:+ +:+         +:+     */

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/*   By: yabtaour <[email protected]>          +#+  +:+       +#+        */

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/*                                                +#+#+#+#+#+   +#+           */

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/*   Created: 2022/07/26 18:16:21 by yabtaour          #+#    #+#             */

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/*   Updated: 2022/07/26 18:16:22 by yabtaour         ###   ########.fr       */

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/*                                                                            */

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/* ************************************************************************** */

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#include "../minishell.h"

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int	ft_change_flag(int flag)

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{

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	if (flag == 0)

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		return (1);

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	if (flag == 0)

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		return (0);

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	return (0);

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}

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char	*ft_get_value(t_data *data, char *var)

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{

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	t_env	*env_clone;

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	env_clone = data->lst_env;

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	while (env_clone)

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	{

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		if (!ft_strcmp(env_clone->name, var))

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			return (env_clone->value);

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		env_clone = env_clone->next;

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	}

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	return (NULL);

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}

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int	ft_check_var_env(t_data *data, char *var)

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{

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	t_env	*env_clone;

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	env_clone = data->lst_env;

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	while (env_clone)

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	{

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		if (!ft_strcmp(env_clone->name, var))

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			return (1);

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		env_clone = env_clone->next;

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	}

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	return (0);

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}

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char	*ft_delete_variable(char *var, int i)

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{

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	char	*new;

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	i++;

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	new = NULL;

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	while (var[i] && !ft_isspace(var[i]) && var[i] != '$'

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		&& var[i] != '\\' && var[i] != '"' && var[i] != '='

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		&& var[i] != '\'')

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	{

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		i++;

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		if (var[i] >= '0' && var[i] <= '9')

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			break ;

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	}

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	if (var[i])

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		new = ft_substr(var, i, ft_len_after(var));

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	return (new);

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}

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char	*ft_delete_var(t_data *data, char *var)

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{

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	char	*new_var;

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	int		i;

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	i = 0;

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	data->flag_s = 0;

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	data->flag_d = 0;

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	new_var = NULL;

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	while (data->flag_s == 1 || (var[i] && var[i] != '$'))

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	{

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		if (var[i] == '"' && data->flag_s == 0)

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			data->flag_d = ft_change_flag(data->flag_d);

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		if (var[i] == '\'' && data->flag_d == 0)

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			data->flag_s = ft_change_flag(data->flag_s);

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		i++;

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	}

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	if (data->flag_s == 0 && var[i] && var[i] == '$')

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		new_var = ft_delete_variable(var, i);

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	return (new_var);

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}

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