Merge pull request #140 from magne/parser-configure-lexer

Allow subclasses of ParserBuilder to override BuildLexer()

sly/parser/generator/ParserBuilder.cs

@@ -118,7 +118,7 @@ private Tuple<string, string> ExtractNTAndRule(string ruleString)
         }
 
 
-        protected BuildResult<ILexer<IN>> BuildLexer()
+        protected virtual BuildResult<ILexer<IN>> BuildLexer()
         {
             var lexer = LexerBuilder.BuildLexer(new BuildResult<ILexer<IN>>());
             return lexer;