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#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;
}
}
void Bu::Parser::setRootNonTerminal( int iRoot )
{
iRootNonTerminal = iRoot;
}
void Bu::Parser::setRootNonTerminal( const Bu::FString &sRoot )
{
setRootNonTerminal( hNonTerminalName.get( sRoot ) );
}
int Bu::Parser::addNonTerminal( const Bu::FString &sName, NonTerminal &nt )
{
int iId = aNonTerminal.getSize();
aNonTerminal.append( nt );
hNonTerminalName.insert( sName, iId );
return iId;
}
int Bu::Parser::addNonTerminal( const Bu::FString &sName )
{
int iId = aNonTerminal.getSize();
aNonTerminal.append( NonTerminal() );
hNonTerminalName.insert( sName, iId );
return iId;
}
void Bu::Parser::setNonTerminal( const Bu::FString &sName, NonTerminal &nt )
{
aNonTerminal[hNonTerminalName.get(sName)] = nt;
}
int Bu::Parser::getNonTerminalId( const Bu::FString &sName )
{
return hNonTerminalName.get( sName );
}
int Bu::Parser::addReduction( const Bu::FString &sName, const Reduction &r )
{
int iId = aReduction.getSize();
aReduction.append( r );
hReductionName.insert( sName, iId );
return iId;
}
int Bu::Parser::addReduction( const Bu::FString &sName )
{
int iId = aReduction.getSize();
aReduction.append( Reduction() );
hReductionName.insert( sName, iId );
return iId;
}
void Bu::Parser::setReduction( const Bu::FString &sName, const Reduction &r )
{
aReduction[hReductionName.get(sName)] = r;
}
int Bu::Parser::getReductionId( const Bu::FString &sName )
{
return hReductionName.get( sName );
}
//
// Bu::Parser::State
//
Bu::Parser::State::State( Bu::Parser::State::Type eType, int iIndex ) :
eType( eType ),
iIndex( iIndex )
{
}
Bu::Parser::State::~State()
{
}
//
// Bu::Parser::NonTerminal
//
Bu::Parser::NonTerminal::NonTerminal()
{
}
Bu::Parser::NonTerminal::~NonTerminal()
{
}
void Bu::Parser::NonTerminal::addProduction( Production p )
{
lProduction.append( p );
}
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