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EntityFileParser

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This commit is contained in:
sippeangelo
2016-01-07 13:10:44 +01:00
parent 0bcbcda8b8
commit 03456ad731
5 changed files with 153 additions and 36 deletions
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include/Engine/Core/EntityFile.h
+37 -31
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@@ -37,15 +37,21 @@ public:
// @param EntityID The parent of the entity
typedef std::function<void(EntityID, EntityID)> OnStartEntityCallback;
void SetStartEntityCallback(OnStartEntityCallback c) { m_OnStartEntityCallback = c; }
// @param EntityID The entity the component corresponds to
// @param std::string Type name of the component
typedef std::function<void(std::string)> OnStartComponentCallback;
typedef std::function<void(EntityID, std::string)> OnStartComponentCallback;
void SetStartComponentCallback(OnStartComponentCallback c) { m_OnStartComponentCallback = c; }
// @param EntityID Entity
// @param std::string Component name
// @param std::string Field name
// @param std::string Field type
typedef std::function<void(std::string, std::string)> OnStartFieldCallback;
// @param std::map<std::string, std::string> Field attribute names and values
typedef std::function<void(EntityID, std::string, std::string, std::map<std::string, std::string>)> OnStartFieldCallback;
void SetStartFieldCallback(OnStartFieldCallback c) { m_OnStartFieldCallback = c; }
// @param EntityID Entity
// @param std::string Component name
// @param std::string Field name
// @param char* Field data
typedef std::function<void(char*)> OnStartFieldDataCallback;
typedef std::function<void(EntityID, std::string, std::string, const char*)> OnStartFieldDataCallback;
void SetStartFieldDataCallback(OnStartFieldDataCallback c) { m_OnStartFieldDataCallback = c; }
private:
@@ -72,15 +78,16 @@ public:
{
// 0 is imaginary world entity
m_EntityStack.push(0);
m_StateStack.push(State::Unknown);
}
void startElement(const XMLCh* const _uri, const XMLCh* const _localName, const XMLCh* const _qname, const xercesc::Attributes& attrs) override
{
std::string name = XS::ToString(_localName);
if (m_CurrentScope == State::Unknown) {
if (m_StateStack.top() == State::Unknown || m_StateStack.top() == State::Entity) {
if (name == "Entity") {
m_CurrentScope = State::Entity;
m_StateStack.push(State::Entity);
onStartEntity(attrs);
return;
}
@@ -91,16 +98,16 @@ public:
}
std::string uri = XS::ToString(_uri);
if (m_CurrentScope == State::Entity) {
if (m_StateStack.top() == State::Entity) {
if (uri == "components") {
m_CurrentScope = State::Component;
m_StateStack.push(State::Component);
onStartComponent(name);
return;
}
}
if (m_CurrentScope == State::Component) {
m_CurrentScope = State::ComponentField;
if (m_StateStack.top() == State::Component) {
m_StateStack.push(State::ComponentField);
onStartComponentField(name, attrs);
return;
}
@@ -108,7 +115,7 @@ public:
void characters(const XMLCh* const chars, const XMLSize_t length) override
{
if (m_CurrentScope == State::ComponentField) {
if (m_StateStack.top() == State::ComponentField) {
char* transcoded = xercesc::XMLString::transcode(chars);
onFieldData(transcoded);
}
@@ -117,25 +124,25 @@ public:
void endElement(const XMLCh* const _uri, const XMLCh* const _localName, const XMLCh* const _qname) override
{
std::string name = XS::ToString(_localName);
if (m_CurrentScope == State::Entity) {
if (m_StateStack.top() == State::Entity) {
if (name == "Entity") {
m_CurrentScope = State::Unknown;
m_StateStack.pop();
onEndEntity();
return;
}
}
std::string uri = XS::ToString(_uri);
if (m_CurrentScope == State::Component) {
if (m_StateStack.top() == State::Component) {
//if (uri == "components") {
m_CurrentScope = State::Entity;
m_StateStack.pop();
onEndComponent(name);
return;
//}
}
if (m_CurrentScope == State::ComponentField) {
m_CurrentScope = State::Component;
if (m_StateStack.top() == State::ComponentField) {
m_StateStack.pop();
onEndComponentField(name);
return;
}
@@ -150,10 +157,14 @@ public:
private:
const EntityFileHandler* m_Handler;
xercesc::XMLGrammarPool* m_GrammarPool;
xercesc::SAX2XMLReader* m_Reader;
State m_CurrentScope = State::Unknown;
//State m_CurrentScope = State::Unknown;
std::stack<State> m_StateStack;
unsigned int m_NextEntityID = 1;
std::stack<EntityID> m_EntityStack;
std::string m_CurrentComponent;
std::string m_CurrentField;
std::map<std::string, std::string> m_CurrentAttributes;
void onStartEntity(const xercesc::Attributes& attrs)
@@ -189,41 +200,36 @@ private:
void onStartComponent(std::string name)
{
//LOG_DEBUG(" Component: %s", name.c_str());
m_CurrentComponent = name;
if (m_Handler->m_OnStartComponentCallback) {
m_Handler->m_OnStartComponentCallback(name);
m_Handler->m_OnStartComponentCallback(m_EntityStack.top(), name);
}
}
void onEndComponent(std::string name)
{
}
void onEndComponent(std::string name) { }
void onStartComponentField(std::string field, const xercesc::Attributes& attrs)
{
//LOG_DEBUG(" Field: %s", field.c_str());
m_CurrentField = field;
m_CurrentAttributes.clear();
for (int i = 0; i < attrs.getLength(); i++) {
auto name = attrs.getQName(i);
auto value = attrs.getValue(name);
//LOG_DEBUG(" %s = %s", (char*)XS::ToString(name), (char*)XS::ToString(value));
m_CurrentAttributes[XS::ToString(name).operator std::string()] = XS::ToString(value).operator std::string();
}
if (m_Handler->m_OnStartFieldCallback) {
m_Handler->m_OnStartFieldCallback(field, "comment?");
m_Handler->m_OnStartFieldCallback(m_EntityStack.top(), m_CurrentComponent, field, m_CurrentAttributes);
}
}
void onEndComponentField(std::string field)
{
}
void onEndComponentField(std::string field) { }
void onFieldData(char* data)
{
//LOG_DEBUG(" Data: %s", data);
if (m_Handler->m_OnStartFieldDataCallback) {
m_Handler->m_OnStartFieldDataCallback(data);
m_Handler->m_OnStartFieldDataCallback(m_EntityStack.top(), m_CurrentComponent, m_CurrentField, data);
}
xercesc::XMLString::release(&data);