Added some exceptions for directives.

node.cpp

@@ -83,10 +83,10 @@ namespace YAML
 
 	void Node::ParseTag(Scanner *pScanner, const ParserState& state)
 	{
+		Token *pToken = pScanner->PeekNextToken();
 		if(m_tag != "")
-			return;  // TODO: throw
+			throw ParserException(pToken->line, pToken->column, "cannot assign multiple tags to the same node");
 
-		Token *pToken = pScanner->PeekNextToken();
 		m_tag = state.TranslateTag(pToken->value);
 
 		for(unsigned i=0;i<pToken->params.size();i++)
@@ -96,10 +96,10 @@ namespace YAML
 	
 	void Node::ParseAnchor(Scanner *pScanner, const ParserState& state)
 	{
+		Token *pToken = pScanner->PeekNextToken();
 		if(m_anchor != "")
-			return;  // TODO: throw
+			throw ParserException(pToken->line, pToken->column, "cannot assign multiple anchors to the same node");
 
-		Token *pToken = pScanner->PeekNextToken();
 		m_anchor = pToken->value;
 		m_alias = false;
 		pScanner->PopNextToken();
@@ -107,12 +107,12 @@ namespace YAML
 
 	void Node::ParseAlias(Scanner *pScanner, const ParserState& state)
 	{
+		Token *pToken = pScanner->PeekNextToken();
 		if(m_anchor != "")
-			return;  // TODO: throw
+			throw ParserException(pToken->line, pToken->column, "cannot assign multiple aliases to the same node");
 		if(m_tag != "")
-			return;  // TODO: throw (aliases can't have any content, *including* tags)
+			throw ParserException(pToken->line, pToken->column, "aliases can't have any content, *including* tags");
 
-		Token *pToken = pScanner->PeekNextToken();
 		m_anchor = pToken->value;
 		m_alias = true;
 		pScanner->PopNextToken();

parser.cpp

@@ -96,13 +96,17 @@ namespace YAML
 		str >> m_state.version.major;
 		str.get();
 		str >> m_state.version.minor;
-		if(!str)
-			throw ParserException(pToken->line, pToken->column, "bad YAML directive");
-				// TODO: or throw if there are any more characters in the stream?
+		if(!str || str.peek() != EOF)
+			throw ParserException(pToken->line, pToken->column, "bad YAML version: " + pToken->params[0]);
 
-		// TODO: throw on major > 1? warning on major == 1, minor > 2?
+		if(m_state.version.major > 1)
+			throw ParserException(pToken->line, pToken->column, "YAML major version > 1");
+
+		// TODO: warning on major == 1, minor > 2?
 	}
 
+	// HandleTagDirective
+	// . Should be of the form 'handle prefix', where 'handle' is converted to 'prefix' in the file.
 	void Parser::HandleTagDirective(Token *pToken)
 	{
 		if(pToken->params.size() != 2)

tests.cpp

@@ -16,6 +16,7 @@ namespace YAML
 			files.push_back("tests/simple.yaml");
 			files.push_back("tests/mixed.yaml");
 			files.push_back("tests/scalars.yaml");
+			files.push_back("tests/directives.yaml");
 
 			bool passed = true;
 			for(unsigned i=0;i<files.size();i++) {
@@ -69,8 +70,6 @@ namespace YAML
 				fout << firstTry << std::endl;
 				fout << "---\n";
 				fout << secondTry << std::endl;
-
-				return false;
 			} catch(ParserException& e) {
 				std::cout << file << " (line " << e.line + 1 << ", col " << e.column + 1 << "): " << e.msg << std::endl;
 				return false;

tests/directives.yaml

+%YAML 1.2
+%TAG ! !howdy
+---
+- basic node
+- ! yeah baby
\ No newline at end of file