// **********************************************************************
//
// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************

#ifndef PARSER_H
#define PARSER_H

#include <Ice/Ice.h>
#include <Library.h>
#include <list>
#include <stdio.h>

#ifdef _WIN32
#   include <io.h>
#   ifdef _MSC_VER
#     define isatty _isatty
#     define fileno _fileno
// '_isatty' : inconsistent dll linkage.  dllexport assumed.
#       pragma warning( disable : 4273 )
#   endif
#endif

//
// Stuff for flex and bison
//

#define YYSTYPE std::list<std::string>
#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)

class Parser;
typedef IceUtil::Handle<Parser> ParserPtr;

class Parser : public IceUtil::SimpleShared
{
public:

    static ParserPtr createParser(const Demo::LibraryPrx&);

    void usage();

    void addBook(const std::list<std::string>&);
    void findIsbn(const std::list<std::string>&);
    void findAuthors(const std::list<std::string>&);
    void nextFoundBook();
    void printCurrent();
    void rentCurrent(const std::list<std::string>&);
    void returnCurrent();
    void removeCurrent();
    void setEvictorSize(const std::list<std::string>&);
    void shutdown();

    void getInput(char*, int&, int);
    void nextLine();
    void continueLine();
    const char* getPrompt();

    void error(const char*);
    void error(const std::string&);

    void warning(const char*);
    void warning(const std::string&);

    int parse(FILE*, bool);
    int parse(const std::string&, bool);

private:

    Parser(const Demo::LibraryPrx&);

    Demo::BookPrxSeq _foundBooks;
    Demo::BookPrxSeq::iterator _current;

    std::string _commands;
    const Demo::LibraryPrx _library;
    bool _continue;
    int _errors;
    int _currentLine;
    std::string _currentFile;
};

extern Parser* parser; // The current parser for bison/flex

#endif