| 52 | } |
| 53 | |
| 54 | bool TokenStream::trySymbol(const std::string& symbol) |
| 55 | { |
| 56 | size_t pos = 0; |
| 57 | while (pos < symbol.size()) { |
| 58 | if (symbol[pos] != cin->peek()) { cin->unget(pos); return false; } |
| 59 | cin->drop(); pos++; |
| 60 | } |
| 61 | return true; |
| 62 | } |
| 63 | |
| 64 | bool TokenStream::trySymbols(Token& token, const ParseLocation& loc) |
| 65 | { |