fix: added new ast type and moved parsing functions to a different header

src/parser/parser.c

@@ -29,35 +29,28 @@ static bool isterminator(char c)
 /* Parses a simple list of words (command and arguments)
  * and returns the resulting ast
  */
-static struct ast *parse_simple_command(void)
-{
-    struct list *cmd_elements = NULL;
-    char *token = get_token();
-    if (token == NULL) // just in case ?
-        return NULL;
-
-    while (token != NULL && !isterminator(token[0]))
-    {
-        cmd_elements = list_append(cmd_elements, token);
-        token = get_token();
-    }
-
-    if (token == NULL)
-        return NULL; // TODO handle error
-
-    struct ast *result = ast_create_cmd(cmd_elements);
-    return result;
-}
 
 // === Functions
 
 struct ast *get_ast()
 {
-    struct ast *result = NULL;
+    struct list *result_list = NULL;
     struct ast *current_node = NULL;
 
-    // char *token = get_token();
+    char *token = peek_token();
+    if (token != NULL)
+    {
+        puts("Internal error: cannot get the following token");
+        return NULL;
+    }
 
+    while (token[0] != EOF)
+    {
+        struct ast *cmd = parse_simple_command();
+        result_list = list_append(result_list, cmd);
+    }
+
+    struct ast *result = ast_create_list(result_list);
     return result;
 }
 

src/parser/parsing_utils.c

@@ -0,0 +1,35 @@
+struct ast *parse_simple_command(void)
+{
+    struct list *cmd_elements = NULL;
+    char *token = pop_token();
+    if (token == NULL) // just in case ?
+    {
+        puts("Internal error: cannot get the following token");
+        return NULL;
+    }
+
+    while (token != NULL && !isterminator(token[0]))
+    {
+        cmd_elements = list_append(cmd_elements, token);
+        token = pop_token();
+    }
+
+    if (token == NULL)
+    {
+        puts("Internal error: cannot get the following token");
+        return NULL;
+    }
+
+    struct ast *result = ast_create_cmd(cmd_elements);
+    return result;
+}
+
+struct ast *parse_if_rule(void)
+{
+    return NULL;
+}
+
+struct ast *parse_shell_command(void)
+{
+    return parse_if_rule();
+}

src/parser/parsing_utils.h

@@ -0,0 +1,24 @@
+/* @brief Parses a simple list of words (command and arguments)
+ * and returns the resulting ast
+ */
+struct ast *parse_simple_command(void);
+
+/* 
+ */
+struct ast *parse_if_rule(void);
+
+/*
+ */
+struct ast *parse_shell_command(void);
+
+/*
+ */
+struct ast* parse_compound_list(void);
+
+/*
+ */
+struct ast* parse_and_or(void);
+
+/*
+ */
+struct ast* else_clause(void);