basic functions to make

include/include.h

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   include.h                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: mcolonna <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/04/23 14:15:12 by mcolonna          #+#    #+#             */
+/*   Updated: 2024/04/23 14:54:39 by mcolonna         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef INCLUDE_H
+# define INCLUDE_H
+
+# include <stdbool.h>
+
+// Represents a call to a program (the program name and its arguments)
+typedef struct s_call
+{
+	char	*program; // path of the program to call.
+	int		argc; // number of arguments given (including the program's name)
+	char	**argv; // arguments given (including the program's name)
+}			t_call;
+
+// Represents a command given by the user.
+typedef struct s_command
+{
+	bool	error; // true means an error occured in interpret_command().
+	t_call	*calls; // all calls to programs.
+	int		input_fd; // fd to use with '<' redirection (0 by default)
+	int		output_fd; // fd to use with '>' redirection (1 by default)
+}			t_command;
+
+// Show the prompt and ask a command to the user.
+// Return the command.
+char		*ask_command(void);
+
+// Return the t_command representing the command given by the user.
+// If error, return a t_command wth the value .error = true.
+t_command	parse_command(char *command);
+
+// Execute the command given. Return the exit status.
+int			execute_command(t_command command);
+
+#endif