Minishell-mea/minishell.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   minishell.c                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: narnaud <narnaud@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/05/02 12:14:09 by narnaud           #+#    #+#             */
/*   Updated: 2022/05/02 17:43:27 by narnaud          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

# include "minishell.h"

t_command	*parser(t_token	*tok)
{
	int 		i;
	t_command	*cmd;
	t_command	*ret;

	cmd = ft_calloc(1, sizeof(t_command));
	ret = cmd;
	while (tok->value)
	{
		i = 0;
		cmd->argv = ft_calloc(count_arguments(tok) + 1, sizeof(char *));
		while(tok->type != PIPE)
		{
			if (tok->type)
				update_redir(cmd, tok);
			else
				cmd->argv[i++] = tok->value;
			if (!tok->next)
				break ;
			tok = tok->next;
		}
		//printf("Input : %d\n", cmd->input);
		//printf("Output : %d\n", cmd->output);
		cmd->argv[i] = NULL;
		if (tok->next)
			tok = tok->next;
		else
			break ;
		cmd->next = ft_calloc(1, sizeof(t_command));
		cmd->next->prev = cmd;
		cmd = cmd->next;
	}
	return (ret);
}

t_token	*lexer(char *line)
{
	t_lexer	*lex;
	char	*tmp;
	int		tmp_i;

	lex = ft_calloc(1, sizeof *ret);
	lex->state = IN_ROOT;
	tmp = ft_calloc(1024, sizeof *tmp);
	tmp_i = 0;
	while (*line)
	{
		if (check_state(lex, &line) == 0)
			continue;
		if (lex->state != S_QUOTE_ST && *line == '$')
			tmp_i = replace_var(&line, tmp, tmp_i);
		if (check_register(lex, &line, tmp))
		{
			i = 0;
			ft_bzero(tmp, 1024);
			continue ;
		}
		tmp[tmp_i] = *line;
		line++;
		tmp_i++;
	}
	create_token(lex, tmp);
	return (lex->tokens);
}

int	launcher(t_env	env)
{
	char	*line;
	int		ret;

	line = readline("$ ");
	if (line == NULL)
		halt(EXIT_FAILURE);
	if (is_empty(line))
		return (EXIT_FAILURE);
	ret = piper(parser(lexer(line)));
	add_history(line);
	return (ret);
}

int	main(int argc, char **argv, char**envp)
{
	if (argc < 2)
		(void)argv;
	(void)envp;
	t_env	env;
	while (1)
		launcher(env);
	clear_history();
	return (EXIT_SUCCESS);
}