Minor tweaks to myriad.

4 files changed, 27 insertions, 7 deletions

diff --git a/src/lexer.h b/src/lexer.h
index e8a17b5..2cb5f51 100644
--- a/src/lexer.h
+++ b/src/lexer.h
@@ -29,9 +29,10 @@ namespace Bu
 
                         template<class t>
                         Token( TokenType iToken, const t &v ) :
-                                iToken( iToken ),
-                                vExtra( v )
+                                iToken( iToken )//,
+//                              vExtra( v )
                         {
+                                vExtra = v;
                         }
                         TokenType iToken;
                         Bu::Variant vExtra;
diff --git a/src/myriad.cpp b/src/myriad.cpp
index 8650a1c..c3eb97e 100644
--- a/src/myriad.cpp
+++ b/src/myriad.cpp
@@ -472,6 +472,18 @@ int Bu::Myriad::getStreamSize( int iId )
         return findStream( iId )->iSize;
 }
 
+bool Bu::Myriad::hasStream( int iId )
+{
+        try
+        {
+                findStream( iId );
+                return true;
+        }catch(...)
+        {
+                return false;
+        }
+}
+
 Bu::MyriadStream Bu::Myriad::openStream( int iId )
 {
         //sio << "Myriad:  Request to open stream: " << iId << sio.nl;
diff --git a/src/myriad.h b/src/myriad.h
index 84f273e..79c3cda 100644
--- a/src/myriad.h
+++ b/src/myriad.h
@@ -31,7 +31,7 @@ namespace Bu
                         invalidStreamId,
                         protectedStream
                 };
-        subExceptionDeclEnd()
+        subExceptionDeclEnd();
 
         /**
          * Myriad block-allocated stream multiplexing system.  This is a system for
@@ -132,6 +132,7 @@ namespace Bu
 
                 Bu::Array<int> getStreamIds();
                 int getStreamSize( int iId );
+                bool hasStream( int iId );
 
                 int getNumStreams();
                 int getBlockSize();
diff --git a/src/parser.cpp b/src/parser.cpp
index b563691..e4e8ae5 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -26,9 +26,8 @@ void Bu::Parser::parse()
 {
         int iCurNt = iRootNonTerminal;
         Lexer::Token *ptCur = sLexer.peek()->nextToken();
-        //Lexer::Token *ptNext = sLexer.peek()->nextToken();
+        sio << "Token: " << sLexer.peek()->tokenToString( *ptCur ) << sio.nl;
         selectProduction( iCurNt, ptCur );
-        sio << "Token: " << *ptCur << sio.nl;
         
         while( !sState.isEmpty() )
         {
@@ -43,7 +42,7 @@ void Bu::Parser::parse()
                                         advanceState();
                                         delete ptCur;
                                         ptCur = sLexer.peek()->nextToken();
-                                        sio << "Token: " << *ptCur << sio.nl;
+                                        sio << "Token: " << sLexer.peek()->tokenToString( *ptCur ) << sio.nl;
                                 }
                                 else
                                 {
@@ -60,7 +59,7 @@ void Bu::Parser::parse()
                                         sToken.push( ptCur );
 
                                         ptCur = sLexer.peek()->nextToken();
-                                        sio << "Token: " << *ptCur << sio.nl;
+                                        sio << "Token: " << sLexer.peek()->tokenToString( *ptCur ) << sio.nl;
                                 }
                                 else
                                 {
@@ -99,12 +98,15 @@ bool Bu::Parser::selectProduction( int iNt, Lexer::Token *ptCur )
         {
                 if( (*i).isEmpty() )
                         continue;
+                sio << "-->(Attempting production " << iNt << ":" << j << ": "
+                        << (*i).first() << ")" << sio.nl;
                 if( (*i).first().eType == State::typeTerminal ||
                         (*i).first().eType == State::typeTerminalPush )
                 {
                         if( (*i).first().iIndex == ptCur->iToken )
                         {
                                 sState.push( (*i).begin() );
+                                sio.incIndent();
                                 sio << "Pushing production " << j << " from nt " << iNt
                                         << sio.nl;
                                 return true;
@@ -113,10 +115,12 @@ bool Bu::Parser::selectProduction( int iNt, Lexer::Token *ptCur )
                 else if( (*i).first().eType == State::typeNonTerminal )
                 {
                         sState.push( (*i).begin() );
+                        sio.incIndent();
                         sio << "Pushing production " << j << " from nt " << iNt
                                 << " as test." << sio.nl;
                         if( !selectProduction( (*i).first().iIndex, ptCur ) )
                         {
+                                sio.decIndent();
                                 sState.pop();
                                 sio << "Production " << j << " from nt " << iNt
                                         << " didn't work out." << sio.nl;
@@ -129,6 +133,7 @@ bool Bu::Parser::selectProduction( int iNt, Lexer::Token *ptCur )
         }
         if( nt.bCanSkip )
                 return true;
+        sio << "-->(Found nothing)" << sio.nl;
         return false;
 }
 
@@ -140,6 +145,7 @@ void Bu::Parser::advanceState()
         sState.peek()++;
         if( !sState.peek() )
         {
+                sio.decIndent();
                 sState.pop();
                 sio << "State advanced, End of production." << sio.nl;
                 return;