feat(redirections): ast commands now have a field for the list of redirections + redirections implemented in parser

src/parser/grammar_basic.c

@@ -171,6 +171,7 @@ struct ast *parse_command(struct lexer_context *ctx)
 struct ast *parse_simple_command(struct lexer_context *ctx)
 {
     struct list *command_elements = NULL;
+    struct list *redirections = NULL; // list of redirection ASTs
 
     // WORD
     struct token *token = POP_TOKEN();
@@ -204,15 +205,15 @@ struct ast *parse_simple_command(struct lexer_context *ctx)
         }
         else if (ast_is_redir(element))
         {
-            // TODO
-            perror("NOT IMPLEMENTED");
-            return NULL;
+            // append redirections to the list of redirections
+            redirections = list_append(redirections, element);
         }
         else
         {
             perror("Internal error: unexpected return value from parse_element "
                    "in parse_simple_command");
             list_deep_destroy(command_elements);
+            list_deep_destroy(redirections);
             return NULL;
         }
 
@@ -221,10 +222,11 @@ struct ast *parse_simple_command(struct lexer_context *ctx)
     }
 
     // Result
-    struct ast *result = ast_create_command(command_elements);
+    struct ast *result = ast_create_command(command_elements, redirections);
     if (result == NULL)
     {
         list_deep_destroy(command_elements);
+        list_deep_destroy(redirections);
         return NULL;
     }
     return result;

src/utils/ast/ast_command.c

@@ -5,13 +5,15 @@
 
 #include "../lists/lists.h"
 
-struct ast *ast_create_command(struct list *command)
+struct ast *ast_create_command(struct list *command,
+        struct list *redirections)
 {
     struct ast_command *command_data = malloc(sizeof(struct ast_command));
     if (!command_data)
         return NULL;
 
     command_data->command = command;
+    command_data->redirections = redirections;
 
     return ast_create(AST_CMD, command_data);
 }
@@ -33,5 +35,6 @@ void ast_free_command(struct ast_command *command_data)
     if (command_data == NULL)
         return;
     list_deep_destroy(command_data->command);
+    ast_list_deep_destroy(command_data->redirections);
     free(command_data);
 }

src/utils/ast/ast_command.h

@@ -7,6 +7,7 @@
 struct ast_command
 {
     struct list *command; // A list of words (char*)
+    struct ast_list *redirections; // A list of ASTs, all ast_redir
 };
 
 /**
@@ -23,7 +24,8 @@ struct ast_command *ast_get_command(struct ast *node);
 /**
  * Creates a new AST node representing a command.
  */
-struct ast *ast_create_command(struct list *command);
+struct ast *ast_create_command(struct list *command,
+        struct list *redirections);
 
 /*
  * @brief: frees the given ast_command and sets the pointer to NULL.