TokenStreamBasicFilter.cpp [plain text]
#include "antlr/TokenStreamBasicFilter.hpp"
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
TokenStreamBasicFilter::TokenStreamBasicFilter(TokenStream& input_)
: input(&input_)
{
}
void TokenStreamBasicFilter::discard(int ttype)
{
discardMask.add(ttype);
}
void TokenStreamBasicFilter::discard(const BitSet& mask)
{
discardMask = mask;
}
RefToken TokenStreamBasicFilter::nextToken()
{
RefToken tok = input->nextToken();
while ( tok && discardMask.member(tok->getType()) ) {
tok = input->nextToken();
}
return tok;
}
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif