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// **********************************************************************
//
// Copyright (c) 2001
// Mutable Realms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#ifndef PARSER_H
#define PARSER_H
#include <Complex.h>
#ifdef _WIN32
# include <io.h>
# define isatty _isatty
# define fileno _fileno
// '_isatty' : inconsistent dll linkage. dllexport assumed.
# pragma warning( disable : 4273 )
#endif
//
// Stuff for flex and bison
//
#define YYSTYPE Complex::NodePtr
#define YY_DECL int yylex(YYSTYPE* yylvalp)
YY_DECL;
int yyparse();
//
// I must set the initial stack depth to the maximum stack depth to
// disable bison stack resizing. The bison stack resizing routines use
// simple malloc/alloc/memcpy calls, which do not work for the
// YYSTYPE, since YYSTYPE is a C++ type, with constructor, destructor,
// assignment operator, etc.
//
#define YYMAXDEPTH 20000 // 20000 should suffice. Bison default is 10000 as maximum.
#define YYINITDEPTH YYMAXDEPTH // Initial depth is set to max depth, for the reasons described above.
//
// Newer bison versions allow to disable stack resizing by defining
// yyoverflow.
//
#define yyoverflow(a, b, c, d, e, f) yyerror(a)
//
// unput() isn't needed. This prevents the function being defined, and
// the resulting compiler warning.
//
#define YY_NO_UNPUT
class Parser
{
public:
Parser();
~Parser();
Complex::NodePtr parse(const std::string&, bool = false);
void error(const char*);
void error(const std::string&);
void getInput(char*, int&, int);
void setResult(const Complex::NodePtr&);
private:
std::string _buf;
Complex::NodePtr _result;
int _errors;
};
extern Parser* parser; // Current parser for bison/flex
#endif
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