diff options
Diffstat (limited to 'src/plugins/plain')
| -rw-r--r-- | src/plugins/plain/DynamicTokenTree.cpp | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/src/plugins/plain/DynamicTokenTree.cpp b/src/plugins/plain/DynamicTokenTree.cpp index 25f6a54..8b7bfc2 100644 --- a/src/plugins/plain/DynamicTokenTree.cpp +++ b/src/plugins/plain/DynamicTokenTree.cpp @@ -42,7 +42,8 @@ bool DynamicTokenTree::registerToken(const std::string &token, const char c = token[i]; auto it = node->children.find(c); if (it == node->children.end()) { - it = node->children.emplace(c, std::unique_ptr<Node>(new Node{})).first; + it = node->children.emplace(c, std::unique_ptr<Node>(new Node{})) + .first; } node = it->second.get(); } @@ -69,7 +70,7 @@ bool DynamicTokenTree::unregisterToken(const std::string &token) noexcept Node *subtreeRoot = &root; char subtreeKey = token[0]; Node *node = &root; - for (size_t i = 0; i < token.size() - 1; i++) { + for (size_t i = 0; i < token.size(); i++) { // Go to the next node, abort if the tree ends unexpectedly auto it = node->children.find(token[i]); if (it == node->children.end()) { @@ -77,15 +78,20 @@ bool DynamicTokenTree::unregisterToken(const std::string &token) noexcept } // Reset the subtree handler if this node has another descriptor - Node *child = it->second.get(); - if ((child->descriptor != nullptr || child->children.size() > 1)) { - subtreeRoot = child; + node = it->second.get(); + if ((node->descriptor != nullptr || node->children.size() > 1) && + (i + 1 != token.size())) { + subtreeRoot = node; subtreeKey = token[i + 1]; } - node = child; } - // If the leaf node, we cannot delete the subtree. Set the + // If the node descriptor is already nullptr, we cannot do anything here + if (node->descriptor == nullptr) { + return false; + } + + // If the target node has children, we cannot delete the subtree. Set the // descriptor to nullptr instead if (!node->children.empty()) { node->descriptor = nullptr; |