C++ (Cpp) yr_re_node_destroy Examples

Example #1

File: re.c Project: devilcoder/yara

void yr_re_node_destroy(
  RE_NODE* node)
{
  if (node->left != NULL)
    yr_re_node_destroy(node->left);

  if (node->right != NULL)
    yr_re_node_destroy(node->right);

  if (node->type == RE_NODE_CLASS)
    yr_free(node->class_vector);

  yr_free(node);
}

Example #2

File: re.c Project: mikalv/yara

int yr_re_split_at_chaining_point(
    RE* re,
    RE** result_re,
    RE** remainder_re,
    int32_t* min_gap,
    int32_t* max_gap)
{
  RE_NODE* node = re->root_node;
  RE_NODE* child = re->root_node->left;
  RE_NODE* parent = NULL;

  int result;

  *result_re = re;
  *remainder_re = NULL;
  *min_gap = 0;
  *max_gap = 0;

  while (child != NULL && child->type == RE_NODE_CONCAT)
  {
    if (child->right != NULL &&
        child->right->type == RE_NODE_RANGE &&
        child->right->greedy == FALSE &&
        child->right->left->type == RE_NODE_ANY &&
        (child->right->start > STRING_CHAINING_THRESHOLD ||
         child->right->end > STRING_CHAINING_THRESHOLD))
    {
      result = yr_re_create(remainder_re);

      if (result != ERROR_SUCCESS)
        return result;

      (*remainder_re)->root_node = child->left;
      (*remainder_re)->flags = re->flags;

      child->left = NULL;

      if (parent != NULL)
        parent->left = node->right;
      else
        (*result_re)->root_node = node->right;

      node->right = NULL;

      *min_gap = child->right->start;
      *max_gap = child->right->end;

      yr_re_node_destroy(node);

      return ERROR_SUCCESS;
    }

    parent = node;
    node = child;
    child = child->left;
  }

  return ERROR_SUCCESS;
}

Example #3

File: re.c Project: devilcoder/yara

void yr_re_destroy(
  RE* re)
{
  if (re->root_node != NULL)
    yr_re_node_destroy(re->root_node);

  if (re->error_message != NULL)
    yr_free((char*) re->error_message);

  yr_free(re);
}

Example #4

File: re.c Project: mikalv/yara

void yr_re_destroy(
    RE* re)
{
  if (re->root_node != NULL)
    yr_re_node_destroy(re->root_node);

  if (re->code_arena != NULL)
    yr_arena_destroy(re->code_arena);

  yr_free(re);
}