parser_grammar_error.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   parser_grammar_error.c                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: baelgadi <baelgadi@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/12/11 18:18:08 by zotaj-di          #+#    #+#             */
/*   Updated: 2026/03/04 04:47:13 by baelgadi         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "parser.h"
#include "libft.h"
 
static const char   *get_error_msg(t_syntax_error err)
{
    if (err == ERR_EMPTY_INPUT)
        return ("minishell: syntax error: empty input\n");
    if (err == ERR_PIPE_START || err == ERR_PIPE_END || err == ERR_PIPE_DOUBLE)
        return ("minishell: syntax error near unexpected token `|'\n");
    if (err == ERR_PIPE_NO_CMD)
        return ("minishell: syntax error: missing command after pipe\n");
    if (err == ERR_REDIR_NO_FILE)
        return ("minishell: syntax error: missing filename "
            "after redirection\n");
    if (err == ERR_REDIR_AFTER_PIPE)
        return ("minishell: syntax error: redirection after pipe\n");
    return (NULL);
}
 
int print_syntax_error(t_syntax_error err)
{
    const char  *msg;
 
    if (err == ERR_NONE)
        return (-1);
    msg = get_error_msg(err);
    if (msg)
        ft_putstr_fd((char *)msg, 2);
    return (-1);
}
 
int is_redirection(t_token_type type)
{
    return (type == TOKEN_REDIR_IN || type == TOKEN_REDIR_OUT
        || type == TOKEN_APPEND || type == TOKEN_HEREDOC);
}