16 files changed, 511 insertions, 511 deletions

diff --git a/src/uscxml/Interpreter.cpp b/src/uscxml/Interpreter.cpp
index f3aedee..6146546 100644
--- a/src/uscxml/Interpreter.cpp
+++ b/src/uscxml/Interpreter.cpp
@@ -272,7 +272,7 @@ std::list<InterpreterIssue> Interpreter::validate() {
 }
 
 LambdaMonitor& Interpreter::on() {
-    return _impl->on();
+	return _impl->on();
 }
 
 #if 1
diff --git a/src/uscxml/Interpreter.h b/src/uscxml/Interpreter.h
index aff77a2..7cf8a0e 100644
--- a/src/uscxml/Interpreter.h
+++ b/src/uscxml/Interpreter.h
@@ -236,9 +236,9 @@ public:
 	std::shared_ptr<InterpreterImpl> getImpl() const {
 		return _impl;
 	}
-    
-    LambdaMonitor& on();
-    
+
+	LambdaMonitor& on();
+
 #if 0
 	// "Ambiguous user-defined-conversion" with operator bool() on MSVC from Visual Studio 12
 	explicit operator MicroStepCallbacks*() {
diff --git a/src/uscxml/interpreter/BasicContentExecutor.cpp b/src/uscxml/interpreter/BasicContentExecutor.cpp
index 9ea2b6a..87c2180 100644
--- a/src/uscxml/interpreter/BasicContentExecutor.cpp
+++ b/src/uscxml/interpreter/BasicContentExecutor.cpp
@@ -593,89 +593,89 @@ void BasicContentExecutor::processParams(std::multimap<std::string, Data>& param
 		paramMap.insert(make_pair(name, d));
 	}
 }
-    
+
 Data BasicContentExecutor::elementAsData(XERCESC_NS::DOMElement* element, bool asExpression) {
-    // element with expr
-    if (HAS_ATTR(element, kXMLCharExpr)) {
-        std::string expr = ATTR(element, kXMLCharExpr);
-        if (_callbacks->isLegalDataValue(expr)) {
-            return Data(expr, Data::INTERPRETED);
-        } else {
-            ERROR_EXECUTION_THROW2("Expression '" + expr + "' is not a legal data value", element);
-        }
-    }
-    
-    // element with external src - this ought to behave just as with child nodes below
-    if (HAS_ATTR(element, kXMLCharSource)) {
-
-        // remove any old child elements
-        while(element->getFirstElementChild() != NULL) {
-            element->removeChild(element->getFirstElementChild());
-        }
-
-        std::string src = ATTR(element, kXMLCharSource);
-        URL url(ATTR(element, kXMLCharSource));
-        if (!url.isAbsolute()) {
-            url = URL::resolve(url, _callbacks->getBaseURL());
-        }
-        std::string content = url.getInContent();
-
-        // append as XML?
-        try {
-            std::unique_ptr<XERCESC_NS::XercesDOMParser> parser(new XERCESC_NS::XercesDOMParser());
-            parser->setValidationScheme(XERCESC_NS::XercesDOMParser::Val_Always);
-            parser->setDoNamespaces(true);
-            parser->useScanner(XERCESC_NS::XMLUni::fgWFXMLScanner);
-            
-            std::unique_ptr<XERCESC_NS::ErrorHandler> errHandler(new XERCESC_NS::HandlerBase());
-            parser->setErrorHandler(errHandler.get());
-
-            XERCESC_NS::MemBufInputSource is((XMLByte*)content.c_str(), content.size(), X("fake"));
-            is.setPublicId(X(url));
-            
-            parser->parse(is);
-            XERCESC_NS::DOMNode* newNode = element->getOwnerDocument()->importNode(parser->getDocument()->getDocumentElement(), true);
-            
-            // we need to save the DOM somewhere .. Data::adoptedDoc was not good enough
-            element->appendChild(newNode);
-            goto SOURCE_APPEND_DONE;
-        } catch (...) {
-        }
-
-        // append as text (are we leaking?)
-        XERCESC_NS::DOMText* textNode = element->getOwnerDocument()->createTextNode(X(content));
-        element->appendChild(textNode);
-    }
+	// element with expr
+	if (HAS_ATTR(element, kXMLCharExpr)) {
+		std::string expr = ATTR(element, kXMLCharExpr);
+		if (_callbacks->isLegalDataValue(expr)) {
+			return Data(expr, Data::INTERPRETED);
+		} else {
+			ERROR_EXECUTION_THROW2("Expression '" + expr + "' is not a legal data value", element);
+		}
+	}
+
+	// element with external src - this ought to behave just as with child nodes below
+	if (HAS_ATTR(element, kXMLCharSource)) {
+
+		// remove any old child elements
+		while(element->getFirstElementChild() != NULL) {
+			element->removeChild(element->getFirstElementChild());
+		}
+
+		std::string src = ATTR(element, kXMLCharSource);
+		URL url(ATTR(element, kXMLCharSource));
+		if (!url.isAbsolute()) {
+			url = URL::resolve(url, _callbacks->getBaseURL());
+		}
+		std::string content = url.getInContent();
+
+		// append as XML?
+		try {
+			std::unique_ptr<XERCESC_NS::XercesDOMParser> parser(new XERCESC_NS::XercesDOMParser());
+			parser->setValidationScheme(XERCESC_NS::XercesDOMParser::Val_Always);
+			parser->setDoNamespaces(true);
+			parser->useScanner(XERCESC_NS::XMLUni::fgWFXMLScanner);
+
+			std::unique_ptr<XERCESC_NS::ErrorHandler> errHandler(new XERCESC_NS::HandlerBase());
+			parser->setErrorHandler(errHandler.get());
+
+			XERCESC_NS::MemBufInputSource is((XMLByte*)content.c_str(), content.size(), X("fake"));
+			is.setPublicId(X(url));
+
+			parser->parse(is);
+			XERCESC_NS::DOMNode* newNode = element->getOwnerDocument()->importNode(parser->getDocument()->getDocumentElement(), true);
+
+			// we need to save the DOM somewhere .. Data::adoptedDoc was not good enough
+			element->appendChild(newNode);
+			goto SOURCE_APPEND_DONE;
+		} catch (...) {
+		}
+
+		// append as text (are we leaking?)
+		XERCESC_NS::DOMText* textNode = element->getOwnerDocument()->createTextNode(X(content));
+		element->appendChild(textNode);
+	}
 SOURCE_APPEND_DONE:
 
-    if (element->hasChildNodes()) {
-        // XML elements e.g. for content with invoke
-        std::list<DOMNode*> elementChildren = DOMUtils::filterChildType(DOMNode::ELEMENT_NODE, element);
-        if (elementChildren.size() > 0) {
-            // always return parent element, even with a single child node
-            return Data(static_cast<DOMNode*>(element));
-        }
-
-        // expression in text element
-        std::list<DOMNode*> textChildren = DOMUtils::filterChildType(DOMNode::TEXT_NODE, element);
-        if (textChildren.size() > 0) {
-            std::stringstream contentSS;
-            for (auto textIter = textChildren.begin(); textIter != textChildren.end(); textIter++) {
-                contentSS << X((*textIter)->getNodeValue());
-            }
-
-            try {
-                Data d = _callbacks->getAsData(contentSS.str());
-                if (!d.empty())
-                    return d;
-            } catch(...) {}
-
-            // anything else is considered verbatim - space normalize?
-            return Data(spaceNormalize(contentSS.str()), Data::VERBATIM);
-        }
-    }
-    
-    return Data();
+	if (element->hasChildNodes()) {
+		// XML elements e.g. for content with invoke
+		std::list<DOMNode*> elementChildren = DOMUtils::filterChildType(DOMNode::ELEMENT_NODE, element);
+		if (elementChildren.size() > 0) {
+			// always return parent element, even with a single child node
+			return Data(static_cast<DOMNode*>(element));
+		}
+
+		// expression in text element
+		std::list<DOMNode*> textChildren = DOMUtils::filterChildType(DOMNode::TEXT_NODE, element);
+		if (textChildren.size() > 0) {
+			std::stringstream contentSS;
+			for (auto textIter = textChildren.begin(); textIter != textChildren.end(); textIter++) {
+				contentSS << X((*textIter)->getNodeValue());
+			}
+
+			try {
+				Data d = _callbacks->getAsData(contentSS.str());
+				if (!d.empty())
+					return d;
+			} catch(...) {}
+
+			// anything else is considered verbatim - space normalize?
+			return Data(spaceNormalize(contentSS.str()), Data::VERBATIM);
+		}
+	}
+
+	return Data();
 }
 
 }
diff --git a/src/uscxml/interpreter/ContentExecutorImpl.h b/src/uscxml/interpreter/ContentExecutorImpl.h
index 0c080ca..8221591 100644
--- a/src/uscxml/interpreter/ContentExecutorImpl.h
+++ b/src/uscxml/interpreter/ContentExecutorImpl.h
@@ -62,7 +62,7 @@ public:
 	virtual Data evalAsData(const std::string& expr) = 0;
 	virtual void eval(const std::string& expr) = 0;
 	virtual Data getAsData(const std::string& expr) = 0;
-    virtual bool isLegalDataValue(const std::string& expr) = 0;
+	virtual bool isLegalDataValue(const std::string& expr) = 0;
 	virtual void assign(const std::string& location, const Data& data, const std::map<std::string, std::string>& attrs) = 0;
 
 
diff --git a/src/uscxml/interpreter/FastMicroStep.cpp b/src/uscxml/interpreter/FastMicroStep.cpp
index 1258279..78aada9 100644
--- a/src/uscxml/interpreter/FastMicroStep.cpp
+++ b/src/uscxml/interpreter/FastMicroStep.cpp
@@ -511,7 +511,7 @@ COMPLETION_STABLISHED:
 
 //    std::list<Transition*> transSpontaneous;
 //    std::list<Transition*> transEventful;
-    
+
 	for (i = 0; i < _transitions.size(); i++) {
 		_transitions[i] = new Transition(i);
 		_transitions[i]->element = tmp.front();
@@ -583,9 +583,9 @@ TARGET_SET_ESTABLISHED:
 		if (!HAS_ATTR(_transitions[i]->element, kXMLCharEvent)) {
 			_transitions[i]->type |= USCXML_TRANS_SPONTANEOUS;
 //            transSpontaneous.push_back(_transitions[i]);
-        } else {
+		} else {
 //            transEventful.push_back(_transitions[i]);
-        }
+		}
 
 		if (iequals(TAGNAME_CAST(_transitions[i]->element->getParentNode()), _xmlPrefix.str() + "history")) {
 			_transitions[i]->type |= USCXML_TRANS_HISTORY;
@@ -618,81 +618,81 @@ TARGET_SET_ESTABLISHED:
 	 * This bound by cache locality!
 	 * Before you change anything, do benchmark!
 	 */
-    
+
 #if 0
 #define exit1 _exitSets[t1->postFixOrder]
 #define exit2 _exitSets[t2->postFixOrder]
 
-    for (size_t set = 0; set < 2; set++) {
-        std::list<Transition*>::const_iterator transBegin;
-        std::list<Transition*>::const_iterator transEnd;
-        if (set == 0) {
-            transBegin = transEventful.begin();
-            transEnd = transEventful.end();
-        } else {
-            transBegin = transSpontaneous.begin();
-            transEnd = transSpontaneous.end();
-        }
-
-        for (auto t1Iter = transBegin; t1Iter != transEnd; t1Iter++) {
-            Transition* t1 = *t1Iter;
-            auto anc1 = _states[t1->source]->ancestors;
-            const uint32_t source1 = t1->source;
-
-            for (auto t2Iter = t1Iter; t2Iter != transEnd; t2Iter++) {
-                Transition* t2 = *t2Iter;
-                
-                if (exit1.first == 0 && exit2.first == 0) {
-                    goto COMPATIBLE_TRANS;
-                }
-                
-                if (exit1.first <= exit2.first && exit1.second >= exit2.first) {
-                    goto CONFLICTING_TRANS;
-                }
-                
-                if (exit2.first <= exit1.first && exit2.second >= exit1.first) {
-                    goto CONFLICTING_TRANS;
-                }
-                
-            COMPATIBLE_TRANS:
-                if (t2->source == source1) {
-                    goto CONFLICTING_TRANS;
-                }
-                
-                if (anc1[t2->source]) {
-                    goto CONFLICTING_TRANS;
-                }
-                
-                if (_states[t2->source]->ancestors[source1]) {
-                    goto CONFLICTING_TRANS;
-                }
-                
-                t1->conflicts[t2->postFixOrder] = false;
-                //            _transitions[j]->conflicts[i] = false;
-                continue;
-                
-            CONFLICTING_TRANS:
-                t1->conflicts[t2->postFixOrder] = true;
-                //            _transitions[j]->conflicts[i] = true;
-                
-                continue;
-
-            }
-        }
-        
-        for (auto t1Iter = transBegin; t1Iter != transEnd; t1Iter++) {
-            Transition* t1 = *t1Iter;
-            // conflicts matrix is symmetric
-            for (auto t2Iter = transBegin; t2Iter != t1Iter; t2Iter++) {
-                Transition* t2 = *t2Iter;
-
-                t1->conflicts[t2->postFixOrder] = t2->conflicts[t1->postFixOrder];
-            }
-        }
-
-    }
-    
-    
+	for (size_t set = 0; set < 2; set++) {
+		std::list<Transition*>::const_iterator transBegin;
+		std::list<Transition*>::const_iterator transEnd;
+		if (set == 0) {
+			transBegin = transEventful.begin();
+			transEnd = transEventful.end();
+		} else {
+			transBegin = transSpontaneous.begin();
+			transEnd = transSpontaneous.end();
+		}
+
+		for (auto t1Iter = transBegin; t1Iter != transEnd; t1Iter++) {
+			Transition* t1 = *t1Iter;
+			auto anc1 = _states[t1->source]->ancestors;
+			const uint32_t source1 = t1->source;
+
+			for (auto t2Iter = t1Iter; t2Iter != transEnd; t2Iter++) {
+				Transition* t2 = *t2Iter;
+
+				if (exit1.first == 0 && exit2.first == 0) {
+					goto COMPATIBLE_TRANS;
+				}
+
+				if (exit1.first <= exit2.first && exit1.second >= exit2.first) {
+					goto CONFLICTING_TRANS;
+				}
+
+				if (exit2.first <= exit1.first && exit2.second >= exit1.first) {
+					goto CONFLICTING_TRANS;
+				}
+
+COMPATIBLE_TRANS:
+				if (t2->source == source1) {
+					goto CONFLICTING_TRANS;
+				}
+
+				if (anc1[t2->source]) {
+					goto CONFLICTING_TRANS;
+				}
+
+				if (_states[t2->source]->ancestors[source1]) {
+					goto CONFLICTING_TRANS;
+				}
+
+				t1->conflicts[t2->postFixOrder] = false;
+				//            _transitions[j]->conflicts[i] = false;
+				continue;
+
+CONFLICTING_TRANS:
+				t1->conflicts[t2->postFixOrder] = true;
+				//            _transitions[j]->conflicts[i] = true;
+
+				continue;
+
+			}
+		}
+
+		for (auto t1Iter = transBegin; t1Iter != transEnd; t1Iter++) {
+			Transition* t1 = *t1Iter;
+			// conflicts matrix is symmetric
+			for (auto t2Iter = transBegin; t2Iter != t1Iter; t2Iter++) {
+				Transition* t2 = *t2Iter;
+
+				t1->conflicts[t2->postFixOrder] = t2->conflicts[t1->postFixOrder];
+			}
+		}
+
+	}
+
+
 #else
 #define anc1 _states[_transitions[i]->source]->ancestors
 #define exit1 _exitSets[i]
@@ -748,7 +748,7 @@ CONFLICTING_TRANS:
 		}
 	}
 #endif
-    
+
 	// initialize bitarrays for step()
 	_exitSet = boost::dynamic_bitset<BITSET_BLOCKTYPE>(_states.size(), false);
 	_entrySet = boost::dynamic_bitset<BITSET_BLOCKTYPE>(_states.size(), false);
diff --git a/src/uscxml/interpreter/InterpreterImpl.cpp b/src/uscxml/interpreter/InterpreterImpl.cpp
index 1caa3f0..185ad75 100644
--- a/src/uscxml/interpreter/InterpreterImpl.cpp
+++ b/src/uscxml/interpreter/InterpreterImpl.cpp
@@ -103,8 +103,8 @@ InterpreterImpl::~InterpreterImpl() {
 	if (_document)
 		delete _document;
 
-    if (_lambdaMonitor)
-        delete _lambdaMonitor;
+	if (_lambdaMonitor)
+		delete _lambdaMonitor;
 
 	{
 		std::lock_guard<std::recursive_mutex> lock(_instanceMutex);
@@ -626,11 +626,11 @@ void InterpreterImpl::enqueueAtParent(const Event& event) {
 }
 
 LambdaMonitor& InterpreterImpl::on() {
-    if (_lambdaMonitor == NULL) {
-        _lambdaMonitor = new LambdaMonitor();
-        addMonitor(_lambdaMonitor);
-    }
-    return *_lambdaMonitor;
+	if (_lambdaMonitor == NULL) {
+		_lambdaMonitor = new LambdaMonitor();
+		addMonitor(_lambdaMonitor);
+	}
+	return *_lambdaMonitor;
 }
 
 }
diff --git a/src/uscxml/interpreter/InterpreterImpl.h b/src/uscxml/interpreter/InterpreterImpl.h
index 1f87fd2..cb31988 100644
--- a/src/uscxml/interpreter/InterpreterImpl.h
+++ b/src/uscxml/interpreter/InterpreterImpl.h
@@ -196,9 +196,9 @@ public:
 		return _dataModel.getAsData(expr);
 	}
 
-    virtual bool isLegalDataValue(const std::string& expr) {
-        return _dataModel.isLegalDataValue(expr);
-    }
+	virtual bool isLegalDataValue(const std::string& expr) {
+		return _dataModel.isLegalDataValue(expr);
+	}
 
 	virtual void assign(const std::string& location, const Data& data, const std::map<std::string, std::string>& attrs);
 
@@ -273,13 +273,13 @@ public:
 		return _document;
 	}
 
-    LambdaMonitor& on();
-        
+	LambdaMonitor& on();
+
 protected:
 	static void addInstance(std::shared_ptr<InterpreterImpl> instance);
-        
-    LambdaMonitor* _lambdaMonitor = NULL;
-    
+
+	LambdaMonitor* _lambdaMonitor = NULL;
+
 	Binding _binding;
 	ActionLanguage _al;
 
diff --git a/src/uscxml/interpreter/InterpreterMonitor.h b/src/uscxml/interpreter/InterpreterMonitor.h
index ed62675..64c281c 100644
--- a/src/uscxml/interpreter/InterpreterMonitor.h
+++ b/src/uscxml/interpreter/InterpreterMonitor.h
@@ -66,46 +66,46 @@ public:
 	virtual ~InterpreterMonitor() {}
 
 	virtual void beforeProcessingEvent(const std::string& sessionId,
-                                       const Event& event) {}
+	                                   const Event& event) {}
 	virtual void beforeMicroStep(const std::string& sessionId) {}
 
 	virtual void beforeExitingState(const std::string& sessionId,
-                                    const std::string& stateName,
-                                    const XERCESC_NS::DOMElement* state) {}
+	                                const std::string& stateName,
+	                                const XERCESC_NS::DOMElement* state) {}
 	virtual void afterExitingState(const std::string& sessionId,
-                                   const std::string& stateName,
-                                   const XERCESC_NS::DOMElement* state) {}
+	                               const std::string& stateName,
+	                               const XERCESC_NS::DOMElement* state) {}
 
 	virtual void beforeExecutingContent(const std::string& sessionId,
-                                        const XERCESC_NS::DOMElement* execContent) {}
+	                                    const XERCESC_NS::DOMElement* execContent) {}
 	virtual void afterExecutingContent(const std::string& sessionId,
-                                       const XERCESC_NS::DOMElement* execContent) {}
+	                                   const XERCESC_NS::DOMElement* execContent) {}
 
 	virtual void beforeUninvoking(const std::string& sessionId,
-                                  const XERCESC_NS::DOMElement* invokeElem,
-                                  const std::string& invokeid) {}
+	                              const XERCESC_NS::DOMElement* invokeElem,
+	                              const std::string& invokeid) {}
 	virtual void afterUninvoking(const std::string& sessionId,
-                                 const XERCESC_NS::DOMElement* invokeElem,
-                                 const std::string& invokeid) {}
+	                             const XERCESC_NS::DOMElement* invokeElem,
+	                             const std::string& invokeid) {}
 
 	virtual void beforeTakingTransition(const std::string& sessionId,
-                                        const XERCESC_NS::DOMElement* transition) {}
+	                                    const XERCESC_NS::DOMElement* transition) {}
 	virtual void afterTakingTransition(const std::string& sessionId,
-                                       const XERCESC_NS::DOMElement* transition) {}
+	                                   const XERCESC_NS::DOMElement* transition) {}
 
 	virtual void beforeEnteringState(const std::string& sessionId,
-                                     const std::string& stateName,
-                                     const XERCESC_NS::DOMElement* state) {}
+	                                 const std::string& stateName,
+	                                 const XERCESC_NS::DOMElement* state) {}
 	virtual void afterEnteringState(const std::string& sessionId,
-                                    const std::string& stateName,
-                                    const XERCESC_NS::DOMElement* state) {}
+	                                const std::string& stateName,
+	                                const XERCESC_NS::DOMElement* state) {}
 
 	virtual void beforeInvoking(const std::string& sessionId,
-                                const XERCESC_NS::DOMElement* invokeElem,
-                                const std::string& invokeid) {}
+	                            const XERCESC_NS::DOMElement* invokeElem,
+	                            const std::string& invokeid) {}
 	virtual void afterInvoking(const std::string& sessionId,
-                               const XERCESC_NS::DOMElement* invokeElem,
-                               const std::string& invokeid) {}
+	                           const XERCESC_NS::DOMElement* invokeElem,
+	                           const std::string& invokeid) {}
 
 	virtual void afterMicroStep(const std::string& sessionId) {}
 	virtual void onStableConfiguration(const std::string& sessionId) {}
@@ -114,7 +114,7 @@ public:
 	virtual void afterCompletion(const std::string& sessionId) {}
 
 	virtual void reportIssue(const std::string& sessionId,
-                             const InterpreterIssue& issue) {}
+	                         const InterpreterIssue& issue) {}
 
 	void copyToInvokers(bool copy) {
 		_copyToInvokers = copy;
@@ -149,273 +149,273 @@ protected:
 
 class USCXML_API LambdaMonitor : public InterpreterMonitor {
 public:
-    void processEvent(std::function<void (const std::string& sessionId,
-                                          const Event& event)> callback) {
-        _beforeProcessingEvent = callback;
-    }
-    
-    
-    void microStep(std::function<void (const std::string& sessionId)> callback,
-                   bool after = false) {
-        if (after) {
-            _afterMicroStep = callback;
-        } else {
-            _beforeMicroStep = callback;
-        }
-
-    }
-    
-    void exitState(std::function<void (const std::string& sessionId,
-                                       const std::string& stateName,
-                                       const XERCESC_NS::DOMElement* state)> callback,
-                   bool after = false) {
-        if (after) {
-            _afterExitingState = callback;
-        } else {
-            _beforeExitingState = callback;
-        }
-    }
-    
-    void executeContent(std::function<void (const std::string& sessionId,
-                                            const XERCESC_NS::DOMElement* execContent)> callback,
-                        bool after = false) {
-        if (after) {
-            _afterExecutingContent = callback;
-        } else {
-            _beforeExecutingContent = callback;
-        }
-    }
-    
-    void uninvoke(std::function<void (const std::string& sessionId,
-                                      const XERCESC_NS::DOMElement* invokeElem,
-                                      const std::string& invokeid)> callback,
-                  bool after = false) {
-        if (after) {
-            _afterUninvoking = callback;
-        } else {
-            _beforeUninvoking = callback;
-        }
-    }
-    
-    void transition(std::function<void (const std::string& sessionId,
-                                        const XERCESC_NS::DOMElement* transition)> callback,
-                    bool after = false) {
-        if (after) {
-            _afterTakingTransition = callback;
-        } else {
-            _beforeTakingTransition = callback;
-        }
-    }
-
-    void enterState(std::function<void (const std::string& sessionId,
-                                        const std::string& stateName,
-                                        const XERCESC_NS::DOMElement* state)> callback,
-                    bool after = false) {
-        _beforeEnteringState = callback;
-        if (after) {
-            _afterEnteringState = callback;
-        } else {
-            _beforeEnteringState = callback;
-        }
-
-    }
-    
-    void invoke(std::function<void (const std::string& sessionId,
-                                    const XERCESC_NS::DOMElement* invokeElem,
-                                    const std::string& invokeid)> callback,
-                bool after = false) {
-        if (after) {
-            _afterInvoking = callback;
-        } else {
-            _beforeInvoking = callback;
-        }
-    }
-    
-    void stableConfiguration(std::function<void (const std::string& sessionId)> callback) {
-        _onStableConfiguration = callback;
-    }
-    
-    void completion(std::function<void (const std::string& sessionId)> callback,
-                    bool after = false) {
-        if (after) {
-            _afterCompletion = callback;
-        } else {
-            _beforeCompletion = callback;
-        }
-
-    }
-    
-    void reportIssue(std::function<void (const std::string& sessionId,
-                                         const InterpreterIssue& issue)> callback) {
-        _reportIssue = callback;
-    }
+	void processEvent(std::function<void (const std::string& sessionId,
+	                                      const Event& event)> callback) {
+		_beforeProcessingEvent = callback;
+	}
+
+
+	void microStep(std::function<void (const std::string& sessionId)> callback,
+	               bool after = false) {
+		if (after) {
+			_afterMicroStep = callback;
+		} else {
+			_beforeMicroStep = callback;
+		}
+
+	}
+
+	void exitState(std::function<void (const std::string& sessionId,
+	                                   const std::string& stateName,
+	                                   const XERCESC_NS::DOMElement* state)> callback,
+	               bool after = false) {
+		if (after) {
+			_afterExitingState = callback;
+		} else {
+			_beforeExitingState = callback;
+		}
+	}
+
+	void executeContent(std::function<void (const std::string& sessionId,
+	                                        const XERCESC_NS::DOMElement* execContent)> callback,
+	                    bool after = false) {
+		if (after) {
+			_afterExecutingContent = callback;
+		} else {
+			_beforeExecutingContent = callback;
+		}
+	}
+
+	void uninvoke(std::function<void (const std::string& sessionId,
+	                                  const XERCESC_NS::DOMElement* invokeElem,
+	                                  const std::string& invokeid)> callback,
+	              bool after = false) {
+		if (after) {
+			_afterUninvoking = callback;
+		} else {
+			_beforeUninvoking = callback;
+		}
+	}
+
+	void transition(std::function<void (const std::string& sessionId,
+	                                    const XERCESC_NS::DOMElement* transition)> callback,
+	                bool after = false) {
+		if (after) {
+			_afterTakingTransition = callback;
+		} else {
+			_beforeTakingTransition = callback;
+		}
+	}
+
+	void enterState(std::function<void (const std::string& sessionId,
+	                                    const std::string& stateName,
+	                                    const XERCESC_NS::DOMElement* state)> callback,
+	                bool after = false) {
+		_beforeEnteringState = callback;
+		if (after) {
+			_afterEnteringState = callback;
+		} else {
+			_beforeEnteringState = callback;
+		}
+
+	}
+
+	void invoke(std::function<void (const std::string& sessionId,
+	                                const XERCESC_NS::DOMElement* invokeElem,
+	                                const std::string& invokeid)> callback,
+	            bool after = false) {
+		if (after) {
+			_afterInvoking = callback;
+		} else {
+			_beforeInvoking = callback;
+		}
+	}
+
+	void stableConfiguration(std::function<void (const std::string& sessionId)> callback) {
+		_onStableConfiguration = callback;
+	}
+
+	void completion(std::function<void (const std::string& sessionId)> callback,
+	                bool after = false) {
+		if (after) {
+			_afterCompletion = callback;
+		} else {
+			_beforeCompletion = callback;
+		}
+
+	}
+
+	void reportIssue(std::function<void (const std::string& sessionId,
+	                                     const InterpreterIssue& issue)> callback) {
+		_reportIssue = callback;
+	}
 
 protected:
-    
-    std::function<void (const std::string& sessionId,
-                        const Event& event)> _beforeProcessingEvent;
-    
-    std::function<void (const std::string& sessionId)> _beforeMicroStep;
-    
-    std::function<void (const std::string& sessionId,
-                        const std::string& stateName,
-                        const XERCESC_NS::DOMElement* state)> _beforeExitingState;
-    
-    std::function<void (const std::string& sessionId,
-                        const std::string& stateName,
-                        const XERCESC_NS::DOMElement* state)> _afterExitingState;
-    
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* execContent)> _beforeExecutingContent;
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* execContent)> _afterExecutingContent;
-    
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* invokeElem,
-                        const std::string& invokeid)> _beforeUninvoking;
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* invokeElem,
-                        const std::string& invokeid)> _afterUninvoking;
-    
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* transition)> _beforeTakingTransition;
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* transition)> _afterTakingTransition;
-    
-    std::function<void (const std::string& sessionId,
-                        const std::string& stateName,
-                        const XERCESC_NS::DOMElement* state)> _beforeEnteringState;
-    std::function<void (const std::string& sessionId,
-                        const std::string& stateName,
-                        const XERCESC_NS::DOMElement* state)> _afterEnteringState;
-    
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* invokeElem,
-                        const std::string& invokeid)> _beforeInvoking;
-    std::function<void (const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* invokeElem,
-                        const std::string& invokeid)> _afterInvoking;
-    
-    std::function<void (const std::string& sessionId)> _afterMicroStep;
-    std::function<void (const std::string& sessionId)> _onStableConfiguration;
-    
-    std::function<void (const std::string& sessionId)> _beforeCompletion;
-    std::function<void (const std::string& sessionId)> _afterCompletion;
-    
-    std::function<void (const std::string& sessionId,
-                        const InterpreterIssue& issue)> _reportIssue;
-    
-    
-    
-    void beforeProcessingEvent(const std::string& sessionId,
-                               const Event& event) {
-        if (_beforeProcessingEvent)
-            _beforeProcessingEvent(sessionId, event);
-    }
-    void beforeMicroStep(const std::string& sessionId) {
-        if (_beforeMicroStep)
-            _beforeMicroStep(sessionId);
-    }
-    
-    void beforeExitingState(const std::string& sessionId,
-                            const std::string& stateName,
-                            const XERCESC_NS::DOMElement* state) {
-        if (_beforeExitingState)
-            _beforeExitingState(sessionId, stateName, state);
-    }
-    
-    void afterExitingState(const std::string& sessionId,
-                           const std::string& stateName,
-                           const XERCESC_NS::DOMElement* state) {
-        if (_afterExitingState)
-            _afterExitingState(sessionId, stateName, state);
-    }
-    
-    void beforeExecutingContent(const std::string& sessionId,
-                                const XERCESC_NS::DOMElement* execContent) {
-        if (_beforeExecutingContent)
-            _beforeExecutingContent(sessionId, execContent);
-    }
-    void afterExecutingContent(const std::string& sessionId,
-                               const XERCESC_NS::DOMElement* execContent) {
-        if (_afterExecutingContent)
-            _afterExecutingContent(sessionId, execContent);
-
-    }
-    
-    void beforeUninvoking(const std::string& sessionId,
-                          const XERCESC_NS::DOMElement* invokeElem,
-                          const std::string& invokeid) {
-        if (_beforeUninvoking)
-            _beforeUninvoking(sessionId, invokeElem, invokeid);
-    }
-    void afterUninvoking(const std::string& sessionId,
-                         const XERCESC_NS::DOMElement* invokeElem,
-                         const std::string& invokeid) {
-        if (_afterUninvoking)
-            _afterUninvoking(sessionId, invokeElem, invokeid);
-    }
-    
-    void beforeTakingTransition(const std::string& sessionId,
-                                const XERCESC_NS::DOMElement* transition) {
-        if (_beforeTakingTransition)
-            _beforeTakingTransition(sessionId, transition);
-    }
-    void afterTakingTransition(const std::string& sessionId,
-                               const XERCESC_NS::DOMElement* transition) {
-        if (_afterTakingTransition)
-            _afterTakingTransition(sessionId, transition);
-    }
-    
-    void beforeEnteringState(const std::string& sessionId,
-                             const std::string& stateName,
-                             const XERCESC_NS::DOMElement* state) {
-        if (_beforeEnteringState)
-            _beforeEnteringState(sessionId, stateName, state);
-    }
-    void afterEnteringState(const std::string& sessionId,
-                            const std::string& stateName,
-                            const XERCESC_NS::DOMElement* state) {
-        if (_afterEnteringState)
-            _afterEnteringState(sessionId, stateName, state);
-    }
-    
-    void beforeInvoking(const std::string& sessionId,
-                        const XERCESC_NS::DOMElement* invokeElem,
-                        const std::string& invokeid) {
-        if (_beforeInvoking)
-            _beforeInvoking(sessionId, invokeElem, invokeid);
-    }
-    void afterInvoking(const std::string& sessionId,
-                       const XERCESC_NS::DOMElement* invokeElem,
-                       const std::string& invokeid) {
-        if (_afterInvoking)
-            _afterInvoking(sessionId, invokeElem, invokeid);
-    }
-    
-    void afterMicroStep(const std::string& sessionId) {
-        if (_afterMicroStep)
-            _afterMicroStep(sessionId);
-    }
-    void onStableConfiguration(const std::string& sessionId) {
-        if (_onStableConfiguration)
-            _onStableConfiguration(sessionId);
-    }
-    
-    void beforeCompletion(const std::string& sessionId) {
-        if (_beforeCompletion)
-            _beforeCompletion(sessionId);
-    }
-    void afterCompletion(const std::string& sessionId) {
-        if (_afterCompletion)
-            _afterCompletion(sessionId);
-    }
-    
-    void reportIssue(const std::string& sessionId,
-                     const InterpreterIssue& issue) {
-        if (_reportIssue)
-            _reportIssue(sessionId, issue);
-    }
+
+	std::function<void (const std::string& sessionId,
+	                    const Event& event)> _beforeProcessingEvent;
+
+	std::function<void (const std::string& sessionId)> _beforeMicroStep;
+
+	std::function<void (const std::string& sessionId,
+	                    const std::string& stateName,
+	                    const XERCESC_NS::DOMElement* state)> _beforeExitingState;
+
+	std::function<void (const std::string& sessionId,
+	                    const std::string& stateName,
+	                    const XERCESC_NS::DOMElement* state)> _afterExitingState;
+
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* execContent)> _beforeExecutingContent;
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* execContent)> _afterExecutingContent;
+
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* invokeElem,
+	                    const std::string& invokeid)> _beforeUninvoking;
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* invokeElem,
+	                    const std::string& invokeid)> _afterUninvoking;
+
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* transition)> _beforeTakingTransition;
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* transition)> _afterTakingTransition;
+
+	std::function<void (const std::string& sessionId,
+	                    const std::string& stateName,
+	                    const XERCESC_NS::DOMElement* state)> _beforeEnteringState;
+	std::function<void (const std::string& sessionId,
+	                    const std::string& stateName,
+	                    const XERCESC_NS::DOMElement* state)> _afterEnteringState;
+
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* invokeElem,
+	                    const std::string& invokeid)> _beforeInvoking;
+	std::function<void (const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* invokeElem,
+	                    const std::string& invokeid)> _afterInvoking;
+
+	std::function<void (const std::string& sessionId)> _afterMicroStep;
+	std::function<void (const std::string& sessionId)> _onStableConfiguration;
+
+	std::function<void (const std::string& sessionId)> _beforeCompletion;
+	std::function<void (const std::string& sessionId)> _afterCompletion;
+
+	std::function<void (const std::string& sessionId,
+	                    const InterpreterIssue& issue)> _reportIssue;
+
+
+
+	void beforeProcessingEvent(const std::string& sessionId,
+	                           const Event& event) {
+		if (_beforeProcessingEvent)
+			_beforeProcessingEvent(sessionId, event);
+	}
+	void beforeMicroStep(const std::string& sessionId) {
+		if (_beforeMicroStep)
+			_beforeMicroStep(sessionId);
+	}
+
+	void beforeExitingState(const std::string& sessionId,
+	                        const std::string& stateName,
+	                        const XERCESC_NS::DOMElement* state) {
+		if (_beforeExitingState)
+			_beforeExitingState(sessionId, stateName, state);
+	}
+
+	void afterExitingState(const std::string& sessionId,
+	                       const std::string& stateName,
+	                       const XERCESC_NS::DOMElement* state) {
+		if (_afterExitingState)
+			_afterExitingState(sessionId, stateName, state);
+	}
+
+	void beforeExecutingContent(const std::string& sessionId,
+	                            const XERCESC_NS::DOMElement* execContent) {
+		if (_beforeExecutingContent)
+			_beforeExecutingContent(sessionId, execContent);
+	}
+	void afterExecutingContent(const std::string& sessionId,
+	                           const XERCESC_NS::DOMElement* execContent) {
+		if (_afterExecutingContent)
+			_afterExecutingContent(sessionId, execContent);
+
+	}
+
+	void beforeUninvoking(const std::string& sessionId,
+	                      const XERCESC_NS::DOMElement* invokeElem,
+	                      const std::string& invokeid) {
+		if (_beforeUninvoking)
+			_beforeUninvoking(sessionId, invokeElem, invokeid);
+	}
+	void afterUninvoking(const std::string& sessionId,
+	                     const XERCESC_NS::DOMElement* invokeElem,
+	                     const std::string& invokeid) {
+		if (_afterUninvoking)
+			_afterUninvoking(sessionId, invokeElem, invokeid);
+	}
+
+	void beforeTakingTransition(const std::string& sessionId,
+	                            const XERCESC_NS::DOMElement* transition) {
+		if (_beforeTakingTransition)
+			_beforeTakingTransition(sessionId, transition);
+	}
+	void afterTakingTransition(const std::string& sessionId,
+	                           const XERCESC_NS::DOMElement* transition) {
+		if (_afterTakingTransition)
+			_afterTakingTransition(sessionId, transition);
+	}
+
+	void beforeEnteringState(const std::string& sessionId,
+	                         const std::string& stateName,
+	                         const XERCESC_NS::DOMElement* state) {
+		if (_beforeEnteringState)
+			_beforeEnteringState(sessionId, stateName, state);
+	}
+	void afterEnteringState(const std::string& sessionId,
+	                        const std::string& stateName,
+	                        const XERCESC_NS::DOMElement* state) {
+		if (_afterEnteringState)
+			_afterEnteringState(sessionId, stateName, state);
+	}
+
+	void beforeInvoking(const std::string& sessionId,
+	                    const XERCESC_NS::DOMElement* invokeElem,
+	                    const std::string& invokeid) {
+		if (_beforeInvoking)
+			_beforeInvoking(sessionId, invokeElem, invokeid);
+	}
+	void afterInvoking(const std::string& sessionId,
+	                   const XERCESC_NS::DOMElement* invokeElem,
+	                   const std::string& invokeid) {
+		if (_afterInvoking)
+			_afterInvoking(sessionId, invokeElem, invokeid);
+	}
+
+	void afterMicroStep(const std::string& sessionId) {
+		if (_afterMicroStep)
+			_afterMicroStep(sessionId);
+	}
+	void onStableConfiguration(const std::string& sessionId) {
+		if (_onStableConfiguration)
+			_onStableConfiguration(sessionId);
+	}
+
+	void beforeCompletion(const std::string& sessionId) {
+		if (_beforeCompletion)
+			_beforeCompletion(sessionId);
+	}
+	void afterCompletion(const std::string& sessionId) {
+		if (_afterCompletion)
+			_afterCompletion(sessionId);
+	}
+
+	void reportIssue(const std::string& sessionId,
+	                 const InterpreterIssue& issue) {
+		if (_reportIssue)
+			_reportIssue(sessionId, issue);
+	}
 };
 
 }
diff --git a/src/uscxml/plugins/DataModel.cpp b/src/uscxml/plugins/DataModel.cpp
index 19a01c9..1b12e88 100644
--- a/src/uscxml/plugins/DataModel.cpp
+++ b/src/uscxml/plugins/DataModel.cpp
@@ -31,7 +31,7 @@ bool DataModel::isValidSyntax(const std::string& expr) {
 }
 
 bool DataModel::isLegalDataValue(const std::string& expr) {
-    return _impl->isLegalDataValue(expr);
+	return _impl->isLegalDataValue(expr);
 }
 
 void DataModel::setEvent(const Event& event) {
diff --git a/src/uscxml/plugins/DataModel.h b/src/uscxml/plugins/DataModel.h
index 6812553..b5ab31c 100644
--- a/src/uscxml/plugins/DataModel.h
+++ b/src/uscxml/plugins/DataModel.h
@@ -46,8 +46,8 @@ public:
 	virtual std::list<std::string> getNames();
 	/// @copydoc DataModelImpl::isValidSyntax()
 	virtual bool isValidSyntax(const std::string& expr);
-    /// @copydoc DataModelImpl::isLegalDataValue()
-    virtual bool isLegalDataValue(const std::string& expr);
+	/// @copydoc DataModelImpl::isLegalDataValue()
+	virtual bool isLegalDataValue(const std::string& expr);
 
 	/// @copydoc DataModelImpl::setEvent()
 	virtual void setEvent(const Event& event);
diff --git a/src/uscxml/plugins/DataModelImpl.h b/src/uscxml/plugins/DataModelImpl.h
index b378a96..afb41bc 100644
--- a/src/uscxml/plugins/DataModelImpl.h
+++ b/src/uscxml/plugins/DataModelImpl.h
@@ -117,7 +117,7 @@ public:
 	/**
 	 * Determine whether a given string constitutes valid syntax in the
 	 * data-model's language. This is only used to identify InterpreterIssues
-     * but may be useful to implement isLegalDataValue() as well.
+	 * but may be useful to implement isLegalDataValue() as well.
 	 * @param expr A string, supposedly containing an expression of the data-model.
 	 * @return Whether expr is in L(DM).
 	 */
@@ -125,16 +125,16 @@ public:
 		return true; // overwrite when datamodel supports it
 	}
 
-    /**
-     * Determine whether a given string constitutes a legal data value that can appear
-     * at the right-hand side of an assignment.
-     *
-     * @param expr A string, supposedly containing a legal data value.
-     * @return Whether expr is a legal data value.
-     */
-    virtual bool isLegalDataValue(const std::string& expr) {
-        return true; // overwrite when datamodel supports it
-    }
+	/**
+	 * Determine whether a given string constitutes a legal data value that can appear
+	 * at the right-hand side of an assignment.
+	 *
+	 * @param expr A string, supposedly containing a legal data value.
+	 * @return Whether expr is a legal data value.
+	 */
+	virtual bool isLegalDataValue(const std::string& expr) {
+		return true; // overwrite when datamodel supports it
+	}
 
 	/**
 	 * Set the given event as `_event` in the data-model's global scope.
diff --git a/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.cpp b/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.cpp
index 3932961..69ed632 100644
--- a/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.cpp
+++ b/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.cpp
@@ -669,9 +669,9 @@ bool JSCDataModel::isValidSyntax(const std::string& expr) {
 }
 
 bool JSCDataModel::isLegalDataValue(const std::string& expr) {
-    return isValidSyntax("var __tmp = " + expr);
+	return isValidSyntax("var __tmp = " + expr);
 }
-    
+
 bool JSCDataModel::isDeclared(const std::string& expr) {
 	JSStringRef scriptJS = JSStringCreateWithUTF8CString(expr.c_str());
 	JSValueRef exception = NULL;
diff --git a/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.h b/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.h
index 38b0ca5..dbe37e6 100644
--- a/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.h
+++ b/src/uscxml/plugins/datamodel/ecmascript/JavaScriptCore/JSCDataModel.h
@@ -64,7 +64,7 @@ public:
 		return names;
 	}
 
-    virtual bool isLegalDataValue(const std::string& expr);
+	virtual bool isLegalDataValue(const std::string& expr);
 	virtual bool isValidSyntax(const std::string& expr);
 
 	virtual void setEvent(const Event& event);
diff --git a/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp b/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp
index 15cbf9d..ad4fb40 100644
--- a/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp
+++ b/src/uscxml/plugins/datamodel/lua/LuaDataModel.cpp
@@ -63,17 +63,17 @@ using namespace XERCESC_NS;
 #else
 #include "LuaEvent.cpp.inc"
 #endif
-    
+
 namespace uscxml {
-    
+
 #ifdef BUILD_AS_PLUGINS
-    PLUMA_CONNECTOR
-    bool pluginConnect(pluma::Host& host) {
-        host.add( new LuaDataModelProvider() );
-        return true;
-    }
+PLUMA_CONNECTOR
+bool pluginConnect(pluma::Host& host) {
+	host.add( new LuaDataModelProvider() );
+	return true;
+}
 #endif
-  
+
 static int luaEval(lua_State* luaState, const std::string& expr) {
 	int preStack = lua_gettop(luaState);
 	int error = luaL_loadstring(luaState, expr.c_str()) || lua_pcall(luaState, 0, LUA_MULTRET, 0);
@@ -97,12 +97,12 @@ static Data getLuaAsData(lua_State* _luaState, const luabridge::LuaRef& lua) {
 		data.type = Data::INTERPRETED;
 	} else if(lua.isLightUserdata() || lua.isUserdata()) {
 #ifndef NO_XERCESC
-        int err = SWIG_Lua_ConvertPtr(_luaState, 0, (void**)&(data.node), SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
-        if (err == SWIG_ERROR)
-            data.node = NULL;
+		int err = SWIG_Lua_ConvertPtr(_luaState, 0, (void**)&(data.node), SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
+		if (err == SWIG_ERROR)
+			data.node = NULL;
 #endif
-        
-    } else if(lua.isThread()) {
+
+	} else if(lua.isThread()) {
 		// not sure what to do
 	} else if(lua.type() == LUA_TBOOLEAN) {
 		// why is there no isBoolean in luabridge?
@@ -121,7 +121,7 @@ static Data getLuaAsData(lua_State* _luaState, const luabridge::LuaRef& lua) {
 	} else if(lua.isString()) {
 		data.atom = lua.cast<std::string>();
 		data.type = Data::VERBATIM;
-    } else if(lua.isTable()) {
+	} else if(lua.isTable()) {
 		// check whether it is to be interpreted as a map or an array
 		bool isArray = true;
 		std::map<std::string, luabridge::LuaRef> luaItems;
@@ -161,13 +161,13 @@ static luabridge::LuaRef getDataAsLua(lua_State* _luaState, const Data& data) {
 
 	if (data.node) {
 #ifndef NO_XERCESC
-        SWIG_Lua_NewPointerObj(_luaState, data.node, SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
-        luaData = luabridge::LuaRef::fromStack(_luaState, 1);
-        return luaData;
+		SWIG_Lua_NewPointerObj(_luaState, data.node, SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
+		luaData = luabridge::LuaRef::fromStack(_luaState, 1);
+		return luaData;
 #else
-        ERROR_EXECUTION_THROW("No DOM support in Lua datamodel");
+		ERROR_EXECUTION_THROW("No DOM support in Lua datamodel");
 #endif
-    }
+	}
 	if (data.compound.size() > 0) {
 		luaData = luabridge::newTable(_luaState);
 		std::map<std::string, Data>::const_iterator compoundIter = data.compound.begin();
@@ -257,8 +257,8 @@ void LuaDataModel::setup() {
 	_luaState = luaL_newstate();
 	luaL_openlibs(_luaState);
 
-    SWIG_init(_luaState);
-    
+	SWIG_init(_luaState);
+
 #if 0
 	try {
 		const luabridge::LuaRef& requireFunc = luabridge::getGlobal(_luaState, "require");
@@ -277,7 +277,7 @@ void LuaDataModel::setup() {
 		LOG(_callbacks->getLogger(), USCXML_INFO) << e.what() << std::endl;
 	}
 #endif
-    
+
 	luabridge::getGlobalNamespace(_luaState).beginClass<LuaDataModel>("DataModel").endClass();
 	luabridge::setGlobal(_luaState, this, "__datamodel");
 
@@ -351,10 +351,10 @@ void LuaDataModel::setEvent(const Event& event) {
 
 	if (event.data.node) {
 #ifndef NO_XERCESC
-        SWIG_Lua_NewPointerObj(_luaState, event.data.node, SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
-        luaEvent["data"] = luabridge::LuaRef::fromStack(_luaState, 1);
+		SWIG_Lua_NewPointerObj(_luaState, event.data.node, SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
+		luaEvent["data"] = luabridge::LuaRef::fromStack(_luaState, 1);
 #else
-        ERROR_EXECUTION_THROW("No DOM support in Lua datamodel");
+		ERROR_EXECUTION_THROW("No DOM support in Lua datamodel");
 #endif
 	} else {
 		// _event.data is KVP
@@ -409,7 +409,7 @@ void LuaDataModel::eval(const std::string& content) {
 }
 
 bool LuaDataModel::isLegalDataValue(const std::string& expr) {
-    return isValidSyntax("local __tmp = " + expr);
+	return isValidSyntax("local __tmp = " + expr);
 }
 
 bool LuaDataModel::isValidSyntax(const std::string& expr) {
@@ -510,9 +510,9 @@ void LuaDataModel::assign(const std::string& location, const Data& data, const s
 	if (data.node) {
 #ifndef NO_XERCESC
 
-        SWIG_Lua_NewPointerObj(_luaState, data.node, SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
-        lua_setglobal(_luaState, "__tmpAssign");
-        eval(location + "= __tmpAssign");
+		SWIG_Lua_NewPointerObj(_luaState, data.node, SWIGTYPE_p_XERCES_CPP_NAMESPACE__DOMNode, SWIG_POINTER_DISOWN);
+		lua_setglobal(_luaState, "__tmpAssign");
+		eval(location + "= __tmpAssign");
 #else
 		ERROR_EXECUTION_THROW("Cannot assign xml nodes in lua datamodel");
 #endif
diff --git a/src/uscxml/plugins/datamodel/lua/LuaDataModel.h b/src/uscxml/plugins/datamodel/lua/LuaDataModel.h
index 84633f1..9b4917b 100644
--- a/src/uscxml/plugins/datamodel/lua/LuaDataModel.h
+++ b/src/uscxml/plugins/datamodel/lua/LuaDataModel.h
@@ -62,7 +62,7 @@ public:
 	}
 
 	virtual bool isValidSyntax(const std::string& expr);
-    virtual bool isLegalDataValue(const std::string& expr);
+	virtual bool isLegalDataValue(const std::string& expr);
 
 	virtual void setEvent(const Event& event);
 
diff --git a/src/uscxml/plugins/datamodel/promela/PromelaDataModel.cpp b/src/uscxml/plugins/datamodel/promela/PromelaDataModel.cpp
index 9f4f22f..c12491b 100644
--- a/src/uscxml/plugins/datamodel/promela/PromelaDataModel.cpp
+++ b/src/uscxml/plugins/datamodel/promela/PromelaDataModel.cpp
@@ -707,8 +707,8 @@ void PromelaDataModel::setEvent(const Event& event) {
 	void PromelaDataModel::assign(const std::string& location, const Data& data, const std::map<std::string, std::string>& attr) {
 		PromelaParser parser(location);
 		if (data.atom.size() > 0 && data.type == Data::INTERPRETED) {
-            // e.g. Var1 = Var1 + 1
-            setVariable(parser.ast, evalAsData(data.atom));
+			// e.g. Var1 = Var1 + 1
+			setVariable(parser.ast, evalAsData(data.atom));
 		} else {
 			setVariable(parser.ast, data);
 		}