From cc74fda33916520504eda63a4d10a5507aca65ba Mon Sep 17 00:00:00 2001
From: starnakin <camille@chauvet.pro>
Date: Mon, 20 Feb 2023 15:41:03 +0100
Subject: [PATCH] fix: '$' variable

---
 cmd.c      |  5 +---
 env_fill.c | 68 +++++++++++++++++++++++++++++++++++++-----------------
 main.c     |  3 ++-
 3 files changed, 50 insertions(+), 26 deletions(-)

diff --git a/cmd.c b/cmd.c
index db908e3..54b0dee 100644
--- a/cmd.c
+++ b/cmd.c
@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/15 14:18:21 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/02/17 17:30:22 by cchauvet         ###   ########.fr       */
+/*   Updated: 2023/02/20 14:47:29 by starnakin        ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -39,10 +39,7 @@ int	ft_cmd_filler(t_list *element, char **args, t_list **env)
 	{
 		temp = ft_env_filler(env, args[i]);
 		if (temp == NULL)
-		{
-			ft_eprintf("minishell: malloc failed\n");
 			return (1);
-		}
 		free(args[i]);
 		args[i] = temp;
 		ft_quote_remover(temp);
diff --git a/env_fill.c b/env_fill.c
index 74430d7..c2b33a7 100644
--- a/env_fill.c
+++ b/env_fill.c
@@ -6,37 +6,55 @@
 /*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/16 16:29:08 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/02/17 17:31:16 by cchauvet         ###   ########.fr       */
+/*   Updated: 2023/02/20 15:39:28 by starnakin        ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
-#include "libftx/libftx.h"
 #include "minishell.h"
-#include "utils/utils.h"
 
-static char	*ft_get_value(t_list **env, const char *str, size_t start,
-		size_t stop)
+static char	*ft_get_value(t_list **env, char *key)
 {
-	char	*key;
 	char	*value;
 
-	key = ft_strndup(str + start, stop);
-	if (key == NULL)
-	{
-		ft_eprintf("minishell: malloc failed\n");
-		return (NULL);
-	}
 	value = get_value_by_key(key, env);
 	if (value == NULL)
 		value = "";
-	free(key);
 	return (value);
 }
 
+static char	*ft_get_key(char *str)
+{
+	char	*key;
+	size_t	i;
+
+	i = 1;
+	if (ft_strncmp(str, "$$", 2) == 0)
+	{
+		key = ft_strdup("$");
+		if (key == NULL)
+			ft_eprintf("minishell: malloc failed\n");
+		return (key);
+	}
+	if (str[i] == ' ' || str[i] == '\0')
+	{
+		key = ft_strdup("");
+		if (key == NULL)
+			ft_eprintf("minishell: malloc failed\n");
+		return (key);
+	}
+	while (str[i] != '\0' && str[i] != '$' && str[i] != ' '
+		&& str[i] != '"')
+			i++;
+	key = ft_strndup(str + 1, i - 1);
+	if (key == NULL)
+		ft_eprintf("minishell: malloc failed\n");
+	return (key);
+}
+
 char	*ft_env_filler(t_list **env, const char *str)
 {
 	size_t	i;
-	size_t	y;
+	char	*key;
 	char	*out;
 	char	*temp;
 	char	*value;
@@ -54,14 +72,22 @@ char	*ft_env_filler(t_list **env, const char *str)
 			i++;
 		while (out[i] == '$')
 		{
-			y = i + 1;
-			while (out[y] != '\0' && out[y] != '$' && out[y] != ' '
-				&& out[y] != '"')
-				y++;
-			value = ft_get_value(env, out, i + 1, y - i - 1);
-			if (value == NULL)
+			key = ft_get_key(out + i);
+			if (key == NULL)
+			{
+				free(out);
 				return (NULL);
-			temp = ft_strreplace(out, value, i, y);
+			}
+			value = ft_get_value(env, key);
+			if (value == NULL)
+			{
+				free(key);
+				free(out);
+				return (NULL);
+			}
+			temp = ft_strreplace(out, value, i, ft_strlen(key) + 1 + i);
+			free(key);
+			i = i + ft_strlen(value);
 			free(out);
 			if (temp == NULL)
 			{
diff --git a/main.c b/main.c
index ccabf31..04dd84e 100644
--- a/main.c
+++ b/main.c
@@ -6,7 +6,7 @@
 /*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/02/16 15:16:14 by cchauvet          #+#    #+#             */
-/*   Updated: 2023/02/17 18:59:50 by cchauvet         ###   ########.fr       */
+/*   Updated: 2023/02/20 15:24:42 by starnakin        ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -108,6 +108,7 @@ int	main(int ac, char **av, char **env)
 	data.env = init_env(env);
 	if (data.env == NULL)
 		return (1);
+	create_value_by_key("", "$", data.env);
 	line = ft_get_user_input(data.env);
 	if (line == NULL)
 	{