echo builtin

+ WIP grammar rules in parsing.txt
+ test trop_de_pipes.sh

srcs/builtins/echo.c

@@ -0,0 +1,47 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   echo.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: lperrey <lperrey@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/10/21 16:37:44 by lperrey           #+#    #+#             */
+/*   Updated: 2021/10/21 20:22:22 by lperrey          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "minishell.h"
+
+enum	e_echo_options
+{
+	BIT_N = 01,
+};
+
+int	builtin_echo(int argc, char *argv[], t_all *c)
+{
+	int	i;
+	int	options;
+
+	(void)argc;
+	(void)c;
+	options = 0;
+	i = 1;
+	while (argv[i] && argv[i][0] == '-')
+	{
+		if (ft_isinset_str(&argv[i][1], "n"))
+			options = options | BIT_N;
+		else
+			break ;
+		i++;
+	}
+	while (argv[i])
+	{
+		ft_putstr_fd(argv[i], 1);
+		i++;
+		if (argv[i])
+			write(1, " ", 1);
+	}
+	if ((options & BIT_N) == 0)
+		write(1, "\n", 1);
+	return (0);
+}