Character.h

Go to the documentation of this file.

/*
 * Character.h
 *
 * Smalltalk like class library for C++
 * Character wrapper. Header.
 *
 * Copyright (c) 2003 Milan Cermak
 */
/*
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef __CHARACTER_H
#define __CHARACTER_H

#include <stlib/Object.h>

namespace Core {

class Dictionary;
class Integer;
class String;
class Stream;
class Visitor;

class Character : public Object // : public Magnitude
{
  protected:
    unsigned long _value;
    static Dictionary *character_store;

  protected:
    Character(unsigned long val);

  public:
    /* Class-accessing protocol */
    virtual String *className(void) const;
    static Dictionary *characterStore(void);

    /* Class-constants protocol */
    static Character *cr(void);
    static Character *lf(void);
    static Character *space(void);
    static Character *tab(void);

    /* Instance creation protocol */
    static Character *value(unsigned long val);
    static Character *value(Integer *val);

    /* Accessing protocol */
    virtual int byteSize(void);
    virtual int digitValue(void);

    /* Comparing protocol */
    virtual long hash(void) const;
    virtual bool isEqual(const Object *object) const;
    virtual bool isEqual(const Object &object) const
      { return Object::isEqual(object); }
    virtual bool isEqual(char cChar) const;

    /* Converting protocol */
    virtual unsigned long asInteger(void);
    virtual Character *asLowercase(void);
    virtual Character *asUppercase(void);

    /* Printing protocol */
    virtual void printOn(Stream *stream) const;

    /* Testing protocol */
    virtual bool isCharacter(void) const;
    virtual bool isDigit(void) const;
    virtual bool isLowercase(void) const;
    virtual bool isSeparator(void) const;
    virtual bool isUppercase(void) const;
    virtual bool isVowel(void) const;

    /* Visiting protocol */
    virtual void visitBy(Visitor *visitor);
};

};

#endif /* __CHARACTER_H */

---