1 files changed, 122 insertions, 0 deletions
diff --git a/xbmc/utils/BooleanLogic.cpp b/xbmc/utils/BooleanLogic.cpp
new file mode 100644
index 0000000..7ccc547
--- /dev/null
+++ b/xbmc/utils/BooleanLogic.cpp
@@ -0,0 +1,122 @@
+/*
+ *  Copyright (C) 2012-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "BooleanLogic.h"
+
+#include "utils/StringUtils.h"
+#include "utils/XBMCTinyXML.h"
+#include "utils/log.h"
+
+bool CBooleanLogicValue::Deserialize(const TiXmlNode *node)
+{
+  if (node == NULL)
+    return false;
+
+  const TiXmlElement *elem = node->ToElement();
+  if (elem == NULL)
+    return false;
+
+  if (node->FirstChild() != NULL && node->FirstChild()->Type() == TiXmlNode::TINYXML_TEXT)
+    m_value = node->FirstChild()->ValueStr();
+
+  m_negated = false;
+  const char *strNegated = elem->Attribute("negated");
+  if (strNegated != NULL)
+  {
+    if (StringUtils::EqualsNoCase(strNegated, "true"))
+      m_negated = true;
+    else if (!StringUtils::EqualsNoCase(strNegated, "false"))
+    {
+      CLog::Log(LOGDEBUG, "CBooleanLogicValue: invalid negated value \"{}\"", strNegated);
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool CBooleanLogicOperation::Deserialize(const TiXmlNode *node)
+{
+  if (node == NULL)
+    return false;
+
+  // check if this is a simple operation with a single value directly expressed
+  // in the parent tag
+  if (node->FirstChild() == NULL || node->FirstChild()->Type() == TiXmlNode::TINYXML_TEXT)
+  {
+    CBooleanLogicValuePtr value = CBooleanLogicValuePtr(newValue());
+    if (value == NULL || !value->Deserialize(node))
+    {
+      CLog::Log(LOGDEBUG, "CBooleanLogicOperation: failed to deserialize implicit boolean value definition");
+      return false;
+    }
+
+    m_values.push_back(value);
+    return true;
+  }
+
+  const TiXmlNode *operationNode = node->FirstChild();
+  while (operationNode != NULL)
+  {
+    std::string tag = operationNode->ValueStr();
+    if (StringUtils::EqualsNoCase(tag, "and") || StringUtils::EqualsNoCase(tag, "or"))
+    {
+      CBooleanLogicOperationPtr operation = CBooleanLogicOperationPtr(newOperation());
+      if (operation == NULL)
+        return false;
+
+      operation->SetOperation(StringUtils::EqualsNoCase(tag, "and") ? BooleanLogicOperationAnd : BooleanLogicOperationOr);
+      if (!operation->Deserialize(operationNode))
+      {
+        CLog::Log(LOGDEBUG, "CBooleanLogicOperation: failed to deserialize <{}> definition", tag);
+        return false;
+      }
+
+      m_operations.push_back(operation);
+    }
+    else
+    {
+      CBooleanLogicValuePtr value = CBooleanLogicValuePtr(newValue());
+      if (value == NULL)
+        return false;
+
+      if (StringUtils::EqualsNoCase(tag, value->GetTag()))
+      {
+        if (!value->Deserialize(operationNode))
+        {
+          CLog::Log(LOGDEBUG, "CBooleanLogicOperation: failed to deserialize <{}> definition", tag);
+          return false;
+        }
+
+        m_values.push_back(value);
+      }
+      else if (operationNode->Type() == TiXmlNode::TINYXML_ELEMENT)
+        CLog::Log(LOGDEBUG, "CBooleanLogicOperation: unknown <{}> definition encountered", tag);
+    }
+
+    operationNode = operationNode->NextSibling();
+  }
+
+  return true;
+}
+
+bool CBooleanLogic::Deserialize(const TiXmlNode *node)
+{
+  if (node == NULL)
+    return false;
+
+  if (m_operation == NULL)
+  {
+    m_operation = CBooleanLogicOperationPtr(new CBooleanLogicOperation());
+
+    if (m_operation == NULL)
+      return false;
+  }
+
+  return m_operation->Deserialize(node);
+}