/* Copyright (C) 2021-2026 Free Software Foundation, Inc.   Contributed by Oracle.    This file is part of GNU Binutils.    This program is free software; you can redistribute it and/or modify   it under the terms of the GNU General Public License as published by   the Free Software Foundation; either version 3, or (at your option)   any later version.    This program is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   GNU General Public License for more details.    You should have received a copy of the GNU General Public License   along with this program; if not, write to the Free Software   Foundation, 51 Franklin Street - Fifth Floor, Boston,   MA 02110-1301, USA.  */ #ifndef _QLPARSER_H#define _QLPARSER_H #include <sstream>#include <istream>#include <iostream>#include "Expression.h" /* This class contains parser inputs (a string, if non-NULL: if NULL, use cin),   and outputs (obtained via operator(), which resets the output   expression).  The destructor deletes the returned expression to allow   exception throws on syntax error to clean up properly.  */ namespace QL{  struct Result  {    std::stringstream streamify;  public:    std::istream in;    Expression *out;     Result () : in (std::cin.rdbuf ()), out (NULL) { }    Result (const char *instr) : streamify (std::string (instr)),	in (streamify.rdbuf ()), out (NULL) { }     Expression *operator() ()    {      Expression *o = out;      out = NULL;      return o;    }     ~Result ()    {      delete out;    }  };}; #endif /* _QLPARSER_H */