This commit has a minor tweak to the variant class to make it easier to use,

and introduces the parser and lexer classes.  I also made a test for parser and
put it in the tools directory.  That is silly, it shouldn't be.  However, it's
necesarry right now, because I don't want to do a full build to compile all
the parser tests.

However, this commit doesn't actually build yet.  It will soon, I just wanted 
to get it all committed.

1 files changed, 43 insertions, 0 deletions

diff --git a/src/parser.cpp b/src/parser.cpp
new file mode 100644
index 0000000..7015070
--- /dev/null
+++ b/src/parser.cpp
@@ -0,0 +1,43 @@
+#include "bu/parser.h"
+#include "bu/lexer.h"
+
+#include "bu/sio.h"
+using namespace Bu;
+
+Bu::Parser::Parser()
+{
+}
+
+Bu::Parser::~Parser()
+{
+}
+
+void Bu::Parser::pushLexer( Lexer *pLex )
+{
+        sLexer.push( pLex );
+}
+
+void Bu::Parser::popLexer()
+{
+        delete sLexer.peekPop();
+}
+
+void Bu::Parser::parse()
+{
+        for(;;)
+        {
+                Bu::Lexer::Token *pToken = sLexer.peek()->nextToken();
+                sio << sLexer.peek()->tokenToString( *pToken ) << sio.nl;
+                if( pToken->iToken < 0 )
+                {
+                        delete sLexer.peekPop();
+                        if( sLexer.isEmpty() )
+                        {
+                                delete pToken;
+                                return;
+                        }
+                }
+                delete pToken;
+        }       
+}
+