adding ptxtools

examples_ptx/ptxtools/PTXLexer.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <cstring>
+#include <cassert>
+
+namespace parser
+{
+  class PTXLexer;
+  class PTXParser;
+}
+
+#include "ptxgrammar.hh"
+
+namespace parser
+{
+	/*!	\brief A wrapper around yyFlexLexer to allow for a local variable */
+	class PTXLexer : public ptxFlexLexer
+	{
+		public:
+			YYSTYPE*     yylval;
+			int          column;
+			int          nextColumn;
+
+		public:
+			PTXLexer( std::istream* arg_yyin, 
+				std::ostream* arg_yyout ) :
+        yyFlexLexer( arg_yyin, arg_yyout ), yylval( 0 ), column( 0 ), 
+        nextColumn( 0 ) { }
+	
+			int yylex();
+      int yylexPosition()
+      {
+        int token = yylex();
+        column = nextColumn;
+        nextColumn = column + strlen( YYText() );
+        return token;
+      }
+
+  };
+}