119 search_item (struct item *root, char const *str)  in search_item()  argument
126   if (root->right == nullptr)  in search_item()
127     return (root->right = new_item (str));  in search_item()
130   t = root;  in search_item()
131   s = p = root->right;  in search_item()
397 recurse_tree (struct item *root, bool (*action) (struct item *))  in recurse_tree()  argument
399   if (root->left == nullptr && root->right == nullptr)  in recurse_tree()
400     return (*action) (root);  in recurse_tree()
403       if (root->left != nullptr)  in recurse_tree()
404         if (recurse_tree (root->left, action))  in recurse_tree()
406       if ((*action) (root))  in recurse_tree()
408       if (root->right != nullptr)  in recurse_tree()
409         if (recurse_tree (root->right, action))  in recurse_tree()
420 walk_tree (struct item *root, bool (*action) (struct item *))  in walk_tree()  argument
422   if (root->right)  in walk_tree()
423     recurse_tree (root->right, action);  in walk_tree()
438   struct item *root = new_item (nullptr);  in tsort()  local
460       k = search_item (root, tokenbuffer.buffer);  in tsort()
476   walk_tree (root, count_items);  in tsort()
481       walk_tree (root, scan_zeros);  in tsort()
518             walk_tree (root, detect_loop);  in tsort()