diff --git a/include/minishell.h b/include/minishell.h
index 7d4c0e5..4a3b4ff 100644
--- a/include/minishell.h
+++ b/include/minishell.h
@@ -16,7 +16,9 @@
 
 # include <stdio.h>
 # include <readline/readline.h>
+# include <readline/history.h>
 # include <stdlib.h>
+# include <signal.h>
 # include <stdint.h>
 # include <sys/types.h>
 # include <sys/stat.h>
@@ -24,17 +26,15 @@
 # include <fcntl.h>
 # include <unistd.h>
 # include <dirent.h>
+# include <stdbool.h>
 # include "libft.h"
 
+# include "error_msg.h"
 # include "env.h"
+# include "prompt.h"
 # include "parsing.h"
 # include "execution.h"
 
-char	set_env(char **env, const char *name, char *content);
-bool	is_str(char *src, char *dst);
-void	print_cmd(t_cmd *cmd);
-
-
 void	free_redir(void *redir_v);
 void	free_token(void *token_v);
 void	free_cmd(void *content);
diff --git a/include/parsing.h b/include/parsing.h
index a11f897..14b7539 100644
--- a/include/parsing.h
+++ b/include/parsing.h
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42angouleme.fr>     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/04/25 12:20:26 by adjoly            #+#    #+#             */
-/*   Updated: 2024/07/06 18:06:23 by adjoly           ###   ########.fr       */
+/*   Updated: 2024/07/07 14:37:59 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -33,22 +33,46 @@ typedef enum s_quote
 	DOUBLE = 34
 }	t_quote;
 
-bool	check_syntax(char *readline);
-void	send_error(char *msg, char **argv);
-bool	check_redir(t_list *redir);
-bool	check_argv(t_list *token);
 t_cmd	*get_redir_fd(void *content, t_env *env);
 t_list	*get_cmd_list(t_list *list, t_env *env);
 void	open_redir(t_redirection *redir, t_cmd *cmd, t_redir_sign sign[2]);
-char	**split_argv(char *readline);
-char	*env_var_replace(char *readline, t_env *env);
-size_t	get_size_with_env(char *readline, t_env *env);
+
+/**
+ * @brief				Take a string and a character and return the lengh
+ *						until the given character
+ *
+ * @param s				The string
+ * @param				The character the lengh stops at
+ *
+ * @return (size_t)		The lengh until the given character
+ */
 size_t	strlen_till_char(char *s, int c);
+
+
 bool	check_quote(char *readline);
-t_quote	__is_quote(char c);
-char	*search_for_next_quote(char *s, t_quote quote_type);
+bool	check_syntax(char *readline);
+bool	check_redir(t_list *redir);
+bool	check_argv(t_list *token);
+/**
+ * @brief				Take the readline output and check if all the pipe 
+ *						a command after them
+ *
+ * @param				The readline output
+ *
+ * @return (bool)		A boolean of whether or not there is an error
+ */
 bool	check_pipe(char *readline);
+
+/**
+ * @brief				Take the readline output and split it into an argv 
+ *						while taking into account quotes
+ *
+ * @param				The readline output
+ *
+ * @return (char **)	The argv of the command
+ */
 char	**split_argv(char *readline);
+
 /**
  * @brief				Take the argv of a command a split the argv and the
  *						command it self
@@ -81,12 +105,35 @@ t_quote	is_inquote(char	*s, size_t i);
  */
 t_quote	__is_quote(char c);
 
+/**
+ * @brief				Take a string and a quote type and return the pointer to
+ *						the next quote
+ *
+ * @param s				A pointer to a string
+ * @param quote_type	A type of quote
+ *
+ * @return (char *)		A pointer to the next quote
+ */
+char	*search_for_next_quote(char *s, t_quote quote_type);
+
+/**
+ * @brief				Take the readline output and the env and replace all the 
+ *						$("variable") by their variable content
+ *
+ * @param readline		The readline output
+ * @param env			The env
+ *
+ * @return (char *)		The curated string
+ */
+char	*env_var_replace(char *readline, t_env *env);
+size_t	get_size_with_env(char *readline, t_env *env);
+
 /*
  *						ONLY FOR DEBUG TO BE REMOVED 
  */
-void	print_quote_type(t_quote type);
-void	print_redir_sign(t_redir_sign redir_sign);
-void	print_token(t_token *token);
-void	print_redir(t_redirection *redir);
+void										print_quote_type(t_quote type);
+void										print_redir_sign(t_redir_sign redir_sign);
+void										print_token(t_token *token);
+void										print_redir(t_redirection *redir);
 
 #endif
diff --git a/src/exec/heredoc.c b/src/exec/heredoc.c
index a77ebab..65d0c4e 100644
--- a/src/exec/heredoc.c
+++ b/src/exec/heredoc.c
@@ -6,24 +6,23 @@
 /*   By: mmoussou <mmoussou@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/05/20 09:19:39 by mmoussou          #+#    #+#             */
-/*   Updated: 2024/07/03 10:08:18 by mmoussou         ###   ########.fr       */
+/*   Updated: 2024/07/09 11:05:31 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "minishell.h"
 
 /*
-	# mode
-		0: ouvre un nouveau fichier
-		1: réouvre le fichier pour la lecture
-		-1: pour signifier qu'il faut decrémenter la static
+ * # mode
+ *	0: ouvre un nouveau fichier
+ *	1: réouvre le fichier pour la lecture
+ *	-1: pour signifier qu'il faut decrémenter la static
  */
 int	fd_manager(int mode)
 {
 	static int	index = 0;
 	char		*index_itoa;
 	char		*path;
-	int			fd;
 
 	if (mode < 0)
 		index--;
@@ -42,10 +41,9 @@ int	fd_manager(int mode)
 	ft_strlcat(path, index_itoa, ft_strlen(index_itoa));
 	free(index_itoa);
 	if (mode > 0)
-		fd = open(path, O_RDONLY);
+		return (open(path, O_RDONLY));
 	else
-		fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, 0644);
-	return (fd);
+		return (open(path, O_WRONLY | O_TRUNC | O_CREAT, 0644));
 }
 
 static int	get_input(char *delimiter, int fd)
@@ -60,12 +58,12 @@ static int	get_input(char *delimiter, int fd)
 		if (status == -1)
 			fd_manager(fd);
 		if (status == -1)
-			return (-1);
+			break ;
 		status = write(fd, "\n", 1);
 		if (status == -1)
 			fd_manager(fd);
 		if (status == -1)
-			return (-1);
+			break ;
 		free(line);
 		line = readline("heredoc> ");
 	}
diff --git a/src/main.c b/src/main.c
index 8250be1..034dc6f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,23 +6,11 @@
 /*   By: mmoussou <mmoussou@student.42angouleme.fr  +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/04/24 11:18:04 by adjoly            #+#    #+#             */
-/*   Updated: 2024/07/06 18:07:24 by adjoly           ###   ########.fr       */
+/*   Updated: 2024/07/07 14:50:45 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
-#include <signal.h>
-#include <stdio.h>
-#include <readline/readline.h>
-#include "error_msg.h"
-#include <readline/history.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <fcntl.h>
-#include "libft.h"
-#include "builtins.h"
 #include "minishell.h"
-#include "parsing.h"
-#include "prompt.h"
 
 void	sig_c(int code)
 {
@@ -33,6 +21,19 @@ void	sig_c(int code)
 	rl_redisplay();
 }
 
+bool	run_checks(char *rl)
+{
+	if (!*rl)
+		return (true);
+	if (check_syntax(rl))
+		return (true);
+	if (check_quote(rl))
+		return (true);
+	if (check_pipe(rl))
+		return (true);
+	return (false);
+}
+
 int	main(int ac, char **av, char **env)
 {
 	char	*rl;
@@ -53,13 +54,7 @@ int	main(int ac, char **av, char **env)
 		free(prompt);
 		if (!rl)
 			exit(727);
-		if (!*rl)
-			continue ;
-		if (check_syntax(rl))
-			continue ;
-		if (check_quote(rl))
-			continue ;
-		if (check_pipe(rl))
+		if (run_checks(rl))
 			continue ;
 		piped = tokenizer(rl);
 		if (check_argv(piped))
diff --git a/src/parsing/get_redir_fd.c b/src/parsing/get_redir_fd.c
index a263365..33530a9 100644
--- a/src/parsing/get_redir_fd.c
+++ b/src/parsing/get_redir_fd.c
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42angouleme.fr>     +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/05/30 10:48:41 by adjoly            #+#    #+#             */
-/*   Updated: 2024/07/06 18:06:14 by adjoly           ###   ########.fr       */
+/*   Updated: 2024/07/07 14:57:54 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */