[ADD] $?

dev/TODO

@@ -1,9 +1,6 @@
 - finding commands
 	- built-in commands
-- signals
-	- ^C, ^D, ^\
 - variables
-	- $?
 	- uses $PATH in env.variables instead of envp
 - builtins:
 	- echo		(with option -n)
@@ -17,6 +14,7 @@
 	- empty variables aren't freed
 	- need to free value returned by readline
 	- the builtins should get all arguments and check if they're good
+	- command `echo "hello` with unclosed quotes
 
 (unnecessary part)
 - working history (rl_* functions?)

src/exec_command.c

@@ -6,7 +6,7 @@
 /*   By: jschaft <cecile.schaft@orange.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/04/24 13:48:00 by jschaft           #+#    #+#             */
-/*   Updated: 2024/06/13 13:56:21 by mcolonna         ###   ########.fr       */
+/*   Updated: 2024/06/21 15:57:28 by mcolonna         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -118,6 +118,7 @@ int	execute_command(t_env *env, t_command command)
 	t_exec_command_global	global;
 	int						r;
 
+	r = 0;
 	global.mc = env->mc_command;
 	global.nb_calls = 0;
 	while (command.calls[global.nb_calls].program != NULL)
@@ -127,11 +128,11 @@ int	execute_command(t_env *env, t_command command)
 	r = create_pipes(&global, command);
 	if (r)
 		return (r);
-	exec_each_call(&global, command, env->envp);
+	r = exec_each_call(&global, command, env->envp);
 	close_all_pipes(&global);
 	while (wait(NULL) != -1)
 		;
 	if (errno != ECHILD)
 		return (minishell_error("errno"), errno);
-	return (0);
+	return (r);
 }

src/main.c

@@ -6,7 +6,7 @@
 /*   By: jschaft <cecile.schaft@orange.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/04/23 14:33:45 by mcolonna          #+#    #+#             */
-/*   Updated: 2024/06/21 14:44:16 by mcolonna         ###   ########.fr       */
+/*   Updated: 2024/06/21 15:48:48 by mcolonna         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -66,7 +66,7 @@ static void	prompt_command(t_env *env)
 	else
 	{
 		add_history(command_str);
-		do_command(env, command_str);
+		env->errorstatus = do_command(env, command_str);
 	}
 	mem_freeall(env->mc_command);
 	env->mc_command = NULL;

src/parse_command.c

@@ -6,7 +6,7 @@
 /*   By: mcolonna <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/04/24 13:47:40 by mcolonna          #+#    #+#             */
-/*   Updated: 2024/06/18 13:41:04 by mcolonna         ###   ########.fr       */
+/*   Updated: 2024/06/21 15:44:51 by mcolonna         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -99,6 +99,7 @@ typedef struct s_parsing_args
 	bool		got_first_call;	// already got at least the first program call?
 	const char	*heredoc;		// EOF line for heredoc. NULL if no heredoc
 	t_list		*variables;		// list of current variables
+	t_env		*env;
 }			t_parsing_args;
 
 // Skip blank characters
@@ -150,17 +151,27 @@ static void	read_variable_value(t_parsing_args *args, const char **dest)
 	const char	*value;
 	const char	*tmp;
 
-	name = str_dup(fatal_error, args->mc, "");
-	read_only(args, &name, SYMBOL_CHARS);
-	if (str_eq(name, ""))
+	name = NULL;
+	tmp = NULL;
+	if (stream_read(&args->stream) == '?')
 	{
-		args->r.error = parse_error("variable name expected");
-		return ;
+		stream_pop(&args->stream);
+		value = str_inttostr(fatal_error, args->mc, args->env->errorstatus);
+	}
+	else
+	{
+		name = str_dup(fatal_error, args->mc, "");
+		read_only(args, &name, SYMBOL_CHARS);
+		if (str_eq(name, ""))
+		{
+			args->r.error = parse_error("variable name expected");
+			return ;
+		}
+		value = variables_get(args->variables, name);
 	}
-	value = variables_get(args->variables, name);
-	mem_free((char *)name);
 	tmp = *dest;
 	*dest = str_join(fatal_error, args->mc, *dest, value);
+	mem_free((char *)name);
 	mem_free((char *)tmp);
 }
 
@@ -443,7 +454,7 @@ static void	read_command(t_parsing_args *args)
 
 // Create a t_parsing_args shared between all the parse_command subfunctions.
 // Define every fields but .stream
-static t_parsing_args	init_parsing_args(const t_memclass mc,
+static t_parsing_args	init_parsing_args(t_env *env, const t_memclass mc,
 							t_list *variables)
 {
 	const t_parsing_args	r = {
@@ -458,6 +469,7 @@ static t_parsing_args	init_parsing_args(const t_memclass mc,
 		.got_first_call = false,
 		.heredoc = NULL,
 		.variables = variables,
+		.env = env,
 	};
 
 	return (r);
@@ -473,7 +485,7 @@ t_command	parse_command(t_env *env, const char *command)
 {
 	t_parsing_args	args;
 
-	args = init_parsing_args(env->mc_command, env->variables);
+	args = init_parsing_args(env, env->mc_command, env->variables);
 	if (parse_variable_set_command(&args, command, env->variables))
 	{
 		args.r.empty = true;