stringmgr.h

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/******************************************************************************
 *
 * stringmgr.h -    class StringMgr: base of string functions. Can be
 *          subclassed and methods re-implemented your favorite
 *          String library with Unicode support, e.g, ICU,
 *          Qt, Java.
 *
 * $Id: stringmgr.h 3786 2020-08-30 11:35:14Z scribe $
 *
 * Copyright 2004-2013 CrossWire Bible Society (http://www.crosswire.org)
 *  CrossWire Bible Society
 *  P. O. Box 2528
 *  Tempe, AZ   85280-2528
 *
 * 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 version 2.
 *
 * 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.
 *
 */


#ifndef STRINGMGR_H
#define STRINGMGR_H

#include <defs.h>
#include <swbuf.h>
#include <utilstr.h>

SWORD_NAMESPACE_START

class SWDLLEXPORT StringMgr {
private:
    static StringMgr *systemStringMgr;
public:

    static void setSystemStringMgr(StringMgr *newStringMgr);

    static StringMgr *getSystemStringMgr();

    static inline bool hasUTF8Support() {
        return getSystemStringMgr()->supportsUnicode();
    };
    
    virtual char *upperUTF8(char *text, unsigned int max = 0) const;
    virtual char *lowerUTF8(char *text, unsigned int max = 0) const;

    virtual bool isUpper(SW_u32 character) const;
    virtual bool isLower(SW_u32 character) const;
    virtual bool isDigit(SW_u32 character) const;
    virtual bool isAlpha(SW_u32 character) const;

    virtual char *upperLatin1(char *text, unsigned int max = 0) const;
    

protected:
    friend class __staticsystemStringMgr;
    
    StringMgr();

    StringMgr(const StringMgr &);

    virtual ~StringMgr();
    
    virtual bool supportsUnicode() const;
};


inline char *toupperstr(char *t, unsigned int max = 0) {
    return StringMgr::getSystemStringMgr()->upperUTF8(t, max);
}

inline char *tolowerstr(char *t, unsigned int max = 0) {
    return StringMgr::getSystemStringMgr()->lowerUTF8(t, max);
}
    
/*
 * @deprecated - SWBuf assumed to be UTF-8 now.
 */
inline char *toupperstr_utf8(char *t, unsigned int max = 0) {
    return StringMgr::getSystemStringMgr()->upperUTF8(t, max);
}


SWORD_NAMESPACE_END


#endif //STRINGMGR_H