www.pudn.com > 12cocorc.zip > CR_PARSE.HPP

//********************************************************** 
//   CR_PARSE.HPP 
//   Coco/R C++ Support Library. 
//   Author: Frankie Arzu  
// 
//   Jun 12, 1996  Version 1.06 
//      Many fixes and suggestions thanks to 
//      Pat Terry  
//********************************************************** 
 
#ifndef CR_PARSER_H 
#define CR_PARSER_H 
 
#include "cr_abs.hpp" 
#include "cr_error.hpp" 
 
class CRParser { 
// Abstract Parser 
  public: 
    CRParser(AbsScanner *S = NULL, CRError *E = NULL); 
    // Constructs abstract parser, and associates it with scanner S and 
    // customized error reporter E 
 
    void Parse(); 
    // Abstract parser 
 
    void SynError(int ErrorNo); 
    // Records syntax error ErrorNo 
 
    void SemError(int ErrorNo); 
    // Records semantic error ErrorNo 
 
  protected: 
    virtual void Get() = 0; 
    int  In(unsigned short int *SymbolSet, int i); 
    void Expect(int n); 
    void GenError(int ErrorNo); 
    AbsScanner *Scanner; 
    CRError    *Error; 
    int        Sym; 
}; 
 
#endif // CR_PARSER_H