Updated signature of Parser::GetNextDocument (issue 45)

include/parser.h

@@ -25,7 +25,7 @@ namespace YAML
 		operator bool() const;
 
 		void Load(std::istream& in);
-		void GetNextDocument(Node& document);
+		bool GetNextDocument(Node& document);
 		void PrintTokens(std::ostream& out);
 
 	private:

src/parser.cpp

@@ -33,7 +33,7 @@ namespace YAML
 	// GetNextDocument
 	// . Reads the next document in the queue (of tokens).
 	// . Throws a ParserException on error.
-	void Parser::GetNextDocument(Node& document)
+	bool Parser::GetNextDocument(Node& document)
 	{
 		// clear node
 		document.Clear();
@@ -43,7 +43,7 @@ namespace YAML
 
 		// we better have some tokens in the queue
 		if(m_pScanner->empty())
-			return;
+			return false;
 
 		// first eat doc start (optional)
 		if(m_pScanner->peek().type == Token::DOC_START)
@@ -58,6 +58,8 @@ namespace YAML
 
 		// clear anchors from the scanner, which are no longer relevant
 		m_pScanner->ClearAnchors();
+
+		return true;
 	}
 
 	// ParseDirectives

util/parse.cpp

@@ -11,9 +11,8 @@ int main(int argc, char **argv)
 	std::istream& input = (argc > 1 ? fin : std::cin);
 	try {
 		YAML::Parser parser(input);
-		while(parser) {
-			YAML::Node doc;
-			parser.GetNextDocument(doc);
+		YAML::Node doc;
+		while(parser.GetNextDocument(doc)) {
 			YAML::Emitter emitter;
 			emitter << doc;
 			std::cout << emitter.c_str() << "\n";