1 files changed, 46 insertions, 21 deletions
diff --git a/include/ms_eval.h b/include/ms_eval.h
index 35e7355..12c2b7e 100644
--- a/include/ms_eval.h
+++ b/include/ms_eval.h
@@ -1,6 +1,11 @@
 #ifndef MS_EVAL_H
 # define MS_EVAL_H
 
+/**
+** \file   ms_eval.h
+** \brief  Evaluation module
+*/
+
 /*
 ** arg:
 **   type ARG
@@ -19,33 +24,53 @@
 **   value fd
 */
 
-read state
- if redir:
- 	open file keep fd
+/**
+** \enum t_val_type
+** \brief  A type for an evaluation node
+**
+** \param VAL_ERR error
+** \param VAL_ERR argument
+** \param VAL_REDIR redirection
+** \param VAL_SEXPR S-expression
+*/
 
+typedef enum
+{
+	VAL_ERR,
+	VAL_ARG,
+	VAL_EXEC,
+	VAL_REDIR_IN,
+	VAL_REDIR_OUT,
+	VAL_REDIR_APPEND,
+	VAL_CMD,
+	VAL_SEXPR,
+}				t_val_type;
+
+/**
+** \brief            An evaluation node struct
+** \param type       type of node
+** \param data       union of possible data
+** \param data::fd   file descriptor for redirection node
+** \param data::str  string for error, arguments, command
+*/
 
 typedef struct
 {
-	t_status_type		type;
+	t_val_type	type;
 	union
 	{
-		char			*str;
-		int				code;
-		int				fd;
-	}					data;
-}						t_val;
-
-
+		char	*str;
+		int		code;
+		int		fd;
+	}			data;
+}				t_val;
 
-typedef enum
-{
-	STYPE_ERROR,
-	STYPE_ARG,
-	STYPE_FILE,
-	STYPE_SEXPR,
-	// ...
-}						t_status_type;
-
-int						ms_eval(t_path path, t_env env, t_ast *ast);
+/**
+** \brief  evaluate an AST
+** \param path  path to commands executable
+** \param env   environment variables
+** \param ast   Abstract syntax tree to evaluate
+*/
+int				ms_eval(t_path path, t_env env, t_ast *ast);
 
 #endif