diff -r 50540f0813e2 -r b926e53910dd core/src/luan/impl/ThemeParser.java
--- a/core/src/luan/impl/ThemeParser.java	Wed Sep 16 20:55:49 2015 -0600
+++ b/core/src/luan/impl/ThemeParser.java	Mon Sep 28 00:32:27 2015 -0600
@@ -176,33 +176,33 @@
 	}
 
 	private Stmt parseDef() throws ParseException {
-		int start = parser.begin();
+		int start = parser.currentIndex();
 		if( !parser.match("{define:") )
-			return parser.failure(null);
+			return null;
 		String name = parseName();
 		if( name==null )
-			throw exception("invalid block name");
+			throw parser.exception("invalid block name");
+		if( !parser.match("}") )
+			throw parser.exception("unclosed define tag");
 		String spaces = "";
-		if( BlankLine() ) {
-			while( BlankLine() );
+		boolean indent = BlankLine();
+		if( indent ) {
 			int startSpaces = parser.currentIndex();
 			InlineSpaces();
 			spaces = parser.textFrom(startSpaces);
 		}
-		if( !parser.match("}") )
-			return null;
 		Expr table = new GetLocalVar(null,stackIndex(MOD));
 		Settable fnName = new SetTableEntry(se(start),table,new ConstExpr(null,name));
 		frame = new Frame(frame);
 		addSymbol(ENV);
-		Stmt block = parseBody("define:"+name,spaces,EndOfLine());
+		Stmt block = parseBody("define:"+name,spaces,indent);
 		FnDef fnDef = newFnDef(start,block);
 		frame = frame.parent;
 		Stmt rtn = new SetStmt(fnName,fnDef);
-		return parser.success(rtn);
+		return rtn;
 	}
 
-	private Stmt parseBody(String tagName,String spaces,boolean initIndent) throws ParseException {
+	private Stmt parseBody(String tagName,String spaces,boolean afterIndent) throws ParseException {
 		List<Stmt> stmts = new ArrayList<Stmt>();
 		int stackStart = symbolsSize();
 		int start = parser.currentIndex();
@@ -221,12 +221,6 @@
 			SetStmt setStmt = new SetStmt( new SetLocalVar(stackIndex(INDENT)), exp );
 			stmts.add(setStmt);
 		}
-		boolean afterIndent = false;
-		if( initIndent && parser.match(spaces) ) {
-			addText(start,start,stmts,true);
-			start = parser.currentIndex();
-			afterIndent = true;
-		}
 		int end = start;
 		while( !matchEndTag(tagName) ) {
 			if( parser.endOfInput() )
@@ -280,15 +274,9 @@
 
 	private boolean matchEndTag(String tagName) {
 		parser.begin();
-		if( !parser.match('{') )
-			return parser.failure();
-		Spaces();
-		if( !(parser.match('/') && parser.match(tagName)) )
-			return parser.failure();
-		Spaces();
-		if( !parser.match('}') )
-			return parser.failure();
-		return parser.success();
+		if( tagName.startsWith("define:") )
+			EndOfLine();
+		return parser.match("{/") && parser.match(tagName) && parser.match('}') ? parser.success() : parser.failure();
 	}
 
 	private void addText(int start,int end,List<Stmt> stmts,boolean indent) {
@@ -341,7 +329,6 @@
 		String name = parseName();
 		if( name==null )
 			return parser.failure(null);
-		Spaces();
 		if( !parser.match("}") )
 			return parser.failure(null);
 //		rtn = "<% env." + name + (attrs.isEmpty() ? "()" : table(attrs)) + " %>";
@@ -369,18 +356,10 @@
 		return parser.success(rtn);
 	}
 
-	private void Spaces() {
-		while( parser.anyOf(" \t\r\n") );
-	}
-
 	private void InlineSpaces() {
 		while( parser.anyOf(" \t") );
 	}
 
-	private void BlankLines() {
-		while( BlankLine() );
-	}
-
 	private boolean BlankLine() {
 		parser.begin();
 		while( parser.anyOf(" \t") );