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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
/** StringMgr provide UTF8 handling
* This class makes it possible to implement Unicode support on the client-side and not in SWORD itself.
*/
class SWDLLEXPORT StringMgr {
private:
static StringMgr *systemStringMgr;
public:
/** Sets the global StringMgr handle
* @param newStringMgr The new global StringMgr. This pointer will be deleted by this StringMgr
*/
static void setSystemStringMgr(StringMgr *newStringMgr);
/** Returns the global StringMgr handle
* @return The global string handle
*/
static StringMgr *getSystemStringMgr();
/** Checks whether Utf8 support is available.
* Override the function supportsUnicode() to tell whether your implementation has utf8 support.
* @return True if this implementation provides support for Utf8 handling or false if just latin1 handling is available
*/
static inline bool hasUTF8Support() {
return getSystemStringMgr()->supportsUnicode();
};
/** Converts the param to an upper case Utf8 string
* @param text The text encoded in utf8 which should be turned into an upper case string
* @param max Max buffer size
* @return text buffer (only for convenience)
*/
virtual char *upperUTF8(char *text, unsigned int max = 0) const;
/** Converts the param to a lower case Utf8 string
* @param text The text encoded in utf8 which should be turned into an upper case string
* @param max Max buffer size
* @return text buffer (only for convenience)
*/
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;
/** Converts the param to an uppercase latin1 string
* @param text The text encoded in latin1 which should be turned into an upper case string
* @param max Max buffer size
* @return text buffer (only for convenience)
*/
virtual char *upperLatin1(char *text, unsigned int max = 0) const;
protected:
friend class __staticsystemStringMgr;
/** Default constructor. Protected to make instances on user side impossible, because this is a Singleton
*/
StringMgr();
/** Copy constructor
*/
StringMgr(const StringMgr &);
/** Destructor
*/
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
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