# HG changeset patch
# User Teemu Piippo <crimsondusk64@gmail.com>
# Date 1393804059 -7200
# Node ID 56ff199476075a845a12871616c010ce2b15a098
# Parent  9be16e1c1e446d94734d4ec05561f9d3140af7de
- added using statement for specifying the target zandronum version. will be used later

diff -r 9be16e1c1e44 -r 56ff19947607 src/Containers.h
--- a/src/Containers.h	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/Containers.h	Mon Mar 03 01:47:39 2014 +0200
@@ -264,9 +264,9 @@
 		{
 			int i = 0;
 
-			for (const ValueType & hay : *this)
+			for (const ValueType& hay : *this)
 			{
-				if (&hay == &needle)
+				if (hay == needle)
 					return i;
 
 				i++;
diff -r 9be16e1c1e44 -r 56ff19947607 src/Lexer.cc
--- a/src/Lexer.cc	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/Lexer.cc	Mon Mar 03 01:47:39 2014 +0200
@@ -333,3 +333,12 @@
 {
 	return format ("%1 / %2", m_tokenPosition - m_tokens.begin(), m_tokens.size());
 }
+
+// =============================================================================
+//
+void Lexer::mustGetSymbol (const String& a)
+{
+	mustGetNext (TK_Any);
+	if (token()->text != a)
+		error ("expected \"%1\", got \"%2\"", a, token()->text);
+}
diff -r 9be16e1c1e44 -r 56ff19947607 src/Lexer.h
--- a/src/Lexer.h	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/Lexer.h	Mon Mar 03 01:47:39 2014 +0200
@@ -55,6 +55,7 @@
 	bool	next (ETokenType req = TK_Any);
 	void	mustGetNext (ETokenType tok);
 	void	mustGetAnyOf (const List<ETokenType>& toks);
+	void	mustGetSymbol (const String& a);
 	int		getOneSymbol (const StringList& syms);
 	void	tokenMustBe (ETokenType tok);
 	bool	peekNext (TokenInfo* tk = null);
diff -r 9be16e1c1e44 -r 56ff19947607 src/LexerScanner.cc
--- a/src/LexerScanner.cc	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/LexerScanner.cc	Mon Mar 03 01:47:39 2014 +0200
@@ -100,6 +100,7 @@
 	"state",
 	"switch",
 	"str",
+	"using",
 	"var",
 	"void",
 	"while",
diff -r 9be16e1c1e44 -r 56ff19947607 src/Parser.cc
--- a/src/Parser.cc	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/Parser.cc	Mon Mar 03 01:47:39 2014 +0200
@@ -37,6 +37,8 @@
 
 #define SCOPE(n) (m_scopeStack[m_scopeCursor - n])
 
+static const StringList g_validZandronumVersions = {"1.2", "1.3", "2.0"};
+
 // ============================================================================
 //
 BotscriptParser::BotscriptParser() :
@@ -53,7 +55,9 @@
 	m_scopeCursor (-1),
 	m_isElseAllowed (false),
 	m_highestGlobalVarIndex (0),
-	m_highestStateVarIndex (0) {}
+	m_highestStateVarIndex (0),
+	m_zandronumVersion (10200), // 1.2
+	m_defaultZandronumVersion (true) {}
 
 // ============================================================================
 //
@@ -177,6 +181,10 @@
 			case TK_Semicolon:
 				break;
 
+			case TK_Using:
+				parseUsing();
+				break;
+
 			default:
 			{
 				// Check if it's a command
@@ -217,6 +225,14 @@
 		if (m_isStateSpawnDefined == false)
 			error ("script must have a state named `stateSpawn`!");
 
+		if (m_defaultZandronumVersion)
+		{
+			print ("\n");
+			print ("note: use the 'using' directive to define a target Zandronum version\n");
+			print ("usage: using zandronum <version>, possible versions: %1\n", g_validZandronumVersions);
+			print ("\n");
+		}
+
 		// Dump the last state's onenter and mainloop
 		writeMemberBuffers();
 
@@ -901,7 +917,34 @@
 }
 
 // ============================================================================
+//
+// Parses a using statement
+//
+void BotscriptParser::parseUsing()
+{
+	checkToplevel();
+	m_lexer->mustGetSymbol ("zandronum");
+	String versionText;
+
+	while (m_lexer->next() && (m_lexer->tokenType() == TK_Number || m_lexer->tokenType() == TK_Dot))
+		versionText += getTokenString();
+
+	// Note: at this point the lexer's pointing at the token after the version.
+	if (versionText.isEmpty())
+		error ("expected version string, got `%1`", getTokenString());
+	if (g_validZandronumVersions.contains (versionText) == false)
+		error ("unknown version string `%2`: valid versions: `%1`\n", g_validZandronumVersions, versionText);
+
+	StringList versionTokens = versionText.split (".");
+	m_zandronumVersion = versionTokens[0].toLong() * 10000 + versionTokens[1].toLong() * 100;
+	m_defaultZandronumVersion = false;
+	m_lexer->tokenMustBe (TK_Semicolon);
+}
+
+// ============================================================================/
+//
 // Parses a command call
+//
 DataBuffer* BotscriptParser::parseCommand (CommandInfo* comm)
 {
 	DataBuffer* r = new DataBuffer (64);
diff -r 9be16e1c1e44 -r 56ff19947607 src/Parser.h
--- a/src/Parser.h	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/Parser.h	Mon Mar 03 01:47:39 2014 +0200
@@ -224,6 +224,8 @@
 		int				m_highestStateVarIndex;
 		int				m_numWrittenBytes;
 		List<ScopeInfo>	m_scopeStack;
+		int				m_zandronumVersion;
+		bool			m_defaultZandronumVersion;
 
 		DataBuffer*		currentBuffer();
 		void			parseStateBlock();
@@ -246,6 +248,7 @@
 		void			parseLabel();
 		void			parseEventdef();
 		void			parseFuncdef();
+		void			parseUsing();
 		void			writeMemberBuffers();
 		void			writeStringTable();
 		DataBuffer*		parseExpression (DataType reqtype, bool fromhere = false);
diff -r 9be16e1c1e44 -r 56ff19947607 src/Tokens.h
--- a/src/Tokens.h	Mon Mar 03 01:04:16 2014 +0200
+++ b/src/Tokens.h	Mon Mar 03 01:47:39 2014 +0200
@@ -103,6 +103,7 @@
 	TK_State,
 	TK_Switch,
 	TK_Str,
+	TK_Using,
 	TK_Var,
 	TK_Void,
 	TK_While,