Method NodeString

extern/re2/re2/prefilter_tree.cc:116–129

}

std::string PrefilterTree::NodeString(Prefilter* node) const {
  // Adding the operation disambiguates AND/OR/atom nodes.
  std::string s = StringPrintf("%d", node->op()) + ":";
  if (node->op() == Prefilter::ATOM) {
    s += node->atom();
  } else {
    for (size_t i = 0; i < node->subs()->size(); i++) {
      if (i > 0)
        s += ',';
      s += StringPrintf("%d", (*node->subs())[i]->unique_id());
    }
  }
  return s;
}

bool PrefilterTree::KeepNode(Prefilter* node) const {
  if (node == NULL)