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

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/*                                                                            */

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

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/*   syntax_analyzer.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 18:17:29 by yabtaour          #+#    #+#             */

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/*   Updated: 2022/09/27 17:42:40 by ssabbaji         ###   ########.fr       */

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/*                                                                            */

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

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#include "../minishell.h"

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static int	ft_check_start_end(t_data *data)

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{

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	t_lexer	*lexer_clone;

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	int		flag;

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	flag = 0;

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	lexer_clone = data->lst_lexer;

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	if (lexer_clone->type == PIPE)

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	{

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		flag = 1;

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		printf("Syntax error near unexpected token `%s'\n", lexer_clone->val);

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		g_vars.g_exit_stat = 258;

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	}

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	while (lexer_clone->next)

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		lexer_clone = lexer_clone->next;

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	if ((lexer_clone->type == PIPE) && !flag)

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	{

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		printf("Syntax error near unexpected token `%s'\n", lexer_clone->val);

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		g_vars.g_exit_stat = 258;

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	}

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	return (g_vars.g_exit_stat);

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}

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static int	ft_check_forbidden(t_data *data)

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{

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	t_lexer	*lexer_clone;

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	char	c;

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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 (lexer_clone->type == AND || lexer_clone->type == PARENTHESIS

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			|| (lexer_clone->type == PIPE && ft_strlen(lexer_clone->val) > 1)

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			|| (lexer_clone->type == SEMI))

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		{

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			g_vars.g_exit_stat = 258;

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			c = lexer_clone->val[0];

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			printf("Syntax error near unexpected token `%c'\n", c);

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			return (g_vars.g_exit_stat);

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		}

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		lexer_clone = lexer_clone->next;

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	}

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	return (g_vars.g_exit_stat);

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}

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int	ft_syntax_analyzer(t_data *data)

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{

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	if (data->lst_lexer)

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	{

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		g_vars.g_exit_stat = ft_check_forbidden(data);

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		if (g_vars.g_exit_stat)

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			return (g_vars.g_exit_stat);

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		g_vars.g_exit_stat = ft_check_start_end(data);

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		if (g_vars.g_exit_stat)

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			return (g_vars.g_exit_stat);

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		g_vars.g_exit_stat = ft_check_quotes(data);

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		if (g_vars.g_exit_stat)

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			return (g_vars.g_exit_stat);

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		g_vars.g_exit_stat = ft_check_between_pipes(data);

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		if (g_vars.g_exit_stat)

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			return (g_vars.g_exit_stat);

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		g_vars.g_exit_stat = ft_check_redirection(data);

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		if (g_vars.g_exit_stat)

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			return (g_vars.g_exit_stat);

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	}

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	return (g_vars.g_exit_stat);

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}

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