update: added echo builtin

include/builtins.h

@@ -6,7 +6,7 @@
 /*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/10/29 22:09:51 by sede-san          #+#    #+#             */
-/*   Updated: 2025/11/01 20:09:41 by sede-san         ###   ########.fr       */
+/*   Updated: 2025/11/02 03:13:46 by sede-san         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -24,6 +24,10 @@
 
 extern u_int8_t	builtin_cd(t_command cmd, t_minishell *msh);
 
+// echo.c
+
+extern u_int8_t	builtin_echo(t_command cmd);
+
 // exit.c
 
 extern u_int8_t	builtin_exit(t_command cmd, t_minishell *msh);

src/builtins/echo/echo.c

@@ -0,0 +1,32 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   echo.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/10/31 02:41:11 by sede-san          #+#    #+#             */
+/*   Updated: 2025/11/02 03:12:00 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "builtins.h"
+#include "echo_def.h"
+
+u_int8_t	builtin_echo(
+	t_command cmd
+){
+	const t_args	args = read_args(cmd);
+	size_t			i;
+
+	i = -1;
+	while (args.strings.data.sp[++i])
+	{
+		ft_putstr(args.strings.data.sp[i]);
+		if (args.strings.data.sp[i + 1])
+			ft_putchar(SPACE);
+	}
+	if (args.no_newline.data.b == false)
+		ft_putchar(NEWLINE);
+	return (EXIT_SUCCESS);
+}

src/builtins/echo/echo_def.c

@@ -0,0 +1,69 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   echo_def.c                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/11/01 20:06:30 by sede-san          #+#    #+#             */
+/*   Updated: 2025/11/02 03:11:01 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "echo_def.h"
+
+static void		assign_flags(t_args *args, t_command cmd, size_t *i);
+static u_int8_t	is_valid_flag(t_args *args, char *flag);
+
+static void	assign_default_flags(
+	t_args *args
+){
+	args->no_newline = (t_arg){
+		.short_name = 'n', .long_name = NULL,
+		.data = {.b = false}
+	};
+}
+
+t_args	read_args(
+	t_command cmd
+){
+	t_args	args;
+	size_t	i;
+
+	assign_default_flags(&args);
+	i = 0;
+	assign_flags(&args, cmd, &i);
+	args.strings.data.sp = &cmd.argv[i];
+	return (args);
+}
+
+static void	assign_flags(
+	t_args *args,
+	t_command cmd,
+	size_t *i
+){
+	while (cmd.argv[++(*i)] && ft_strchr(cmd.argv[*i], '-'))
+	{
+		if (!is_valid_flag(args, cmd.argv[*i]))
+			break ;
+		else
+			args->no_newline.data.b = true;
+	}
+}
+
+static u_int8_t	is_valid_flag(
+	t_args *args,
+	char *flag
+){
+	size_t	i;
+
+	if (!flag[1])
+		return (0);
+	i = 0;
+	while (flag[++i])
+	{
+		if (flag[i] != args->no_newline.short_name)
+			return (0);
+	}
+	return (1);
+}

src/builtins/echo/echo_def.h

@@ -0,0 +1,32 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   echo_def.h                                         :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: sede-san <sede-san@student.42madrid.com    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/10/31 10:31:08 by sede-san          #+#    #+#             */
+/*   Updated: 2025/11/02 03:11:10 by sede-san         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#ifndef ECHO_DEF_H
+# define ECHO_DEF_H
+
+# include "builtins.h"
+
+typedef struct s_args
+{
+	t_arg	no_newline;
+	t_arg	strings;
+}	t_args;
+
+/******************************************************************************/
+/*                                 Functions                                  */
+/******************************************************************************/
+
+// echo_def.c
+
+extern t_args	read_args(t_command cmd);
+
+#endif /* ECHO_DEF_H */