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

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/*                                                                            */

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

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/*   ft_expanding.c                                     :+:      :+:    :+:   */

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

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

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

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

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/*   Updated: 2022/09/30 14:34:02 by ssabbaji         ###   ########.fr       */

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/*                                                                            */

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

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#include "../minishell.h"

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int	ft_value_before(t_data *data, int i, char *value)

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{

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

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	{

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

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

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		if (value[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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	return (i);

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}

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int	ft_value_var(int i, char *value)

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{

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

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

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		&& value[i] != '\'' && value[i] != '='

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		&& value[i] != '+'

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		&& value[i] != '-'

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		&& value[i] != '/'

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		&& value[i] != '%')

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		i++;

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	return (i);

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}

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void	ft_real_expanding(t_data *data, t_lexer *lexer)

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{

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	int		i;

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	char	*n_v;

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	char	*var;

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	i = 0;

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	var = NULL;

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	n_v = ft_substr(lexer->val, 0, ft_len_before(lexer->val));

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	i = ft_value_before(data, i, lexer->val);

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	if (lexer->val[i] && lexer->val[i + 1])

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		var = ft_substr(lexer->val, i + 1, ft_len_var(lexer->val));

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	if (var)

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	{

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		if (ft_check_var_env(data, var))

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		{

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			n_v = ft_strjoin(n_v, ft_get_value(data, var));

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			n_v = ft_get_expand_value(n_v, i, lexer->val);

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		}

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		else

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			n_v = ft_var_isnt(data, lexer->val, n_v);

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		free(lexer->val);

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		lexer->val = ft_change_nd_free(var, n_v);

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	}

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}

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int	ft_has_var(t_data *data, char *value)

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{

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	int	i;

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	i = 0;

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	while (value && value[i])

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	{

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

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

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

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

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

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			&& value[i + 1]

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			&& value[i + 1] != '"'

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			&& value[i + 1] != '\''

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			&& value[i + 1] != '?'

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			&& value[i + 1] != '+'

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			&& value[i + 1] != '-'

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			&& value[i + 1] != '/'

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			&& value[i + 1] != '%')

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			return (1);

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		i++;

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	}

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	return (0);

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}

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void	ft_expanding(t_data *data)

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{

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	t_lexer	*lexer_clone;

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	lexer_clone = data->lst_lexer;

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	while (ft_check_still_dollar(data))

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	{

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		lexer_clone = data->lst_lexer;

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		while (lexer_clone)

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		{

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			if (!ft_strcmp(lexer_clone->val, "<<"))

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			{

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				lexer_clone = lexer_clone->next;

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				if (lexer_clone)

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					lexer_clone = lexer_clone->next;

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			}

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			if (lexer_clone->type == WORD && ft_has_var(data, lexer_clone->val))

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				ft_real_expanding(data, lexer_clone);

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			if (lexer_clone)

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				lexer_clone = lexer_clone->next;

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		}

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	}

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}

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