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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (C) 2013, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*
* scriptset.h
*
* created on: 2013 Jan 7
* created by: Andy Heninger
*/
#ifndef __SCRIPTSET_H__
#define __SCRIPTSET_H__
#include <_foundation_unicode/utypes.h>
#include <_foundation_unicode/uobject.h>
#include <_foundation_unicode/uscript.h>
#include "uelement.h"
U_NAMESPACE_BEGIN
//-------------------------------------------------------------------------------
//
// ScriptSet - A bit set representing a set of scripts.
//
// This class was originally used exclusively with script sets appearing
// as part of the spoof check whole script confusable binary data. Its
// use has since become more general, but the continued use to wrap
// prebuilt binary data does constrain the design.
//
//-------------------------------------------------------------------------------
class U_I18N_API ScriptSet: public UMemory {
public:
static constexpr int32_t SCRIPT_LIMIT = 224; // multiple of 32!
ScriptSet();
ScriptSet(const ScriptSet &other);
~ScriptSet();
bool operator == (const ScriptSet &other) const;
bool operator != (const ScriptSet &other) const {return !(*this == other);}
ScriptSet & operator = (const ScriptSet &other);
UBool test(UScriptCode script, UErrorCode &status) const;
ScriptSet &Union(const ScriptSet &other);
ScriptSet &set(UScriptCode script, UErrorCode &status);
ScriptSet &reset(UScriptCode script, UErrorCode &status);
ScriptSet &intersect(const ScriptSet &other);
ScriptSet &intersect(UScriptCode script, UErrorCode &status);
UBool intersects(const ScriptSet &other) const; // Sets contain at least one script in common.
UBool contains(const ScriptSet &other) const; // All set bits in other are also set in this.
ScriptSet &setAll();
ScriptSet &resetAll();
int32_t countMembers() const;
int32_t hashCode() const;
int32_t nextSetBit(int32_t script) const;
UBool isEmpty() const;
UnicodeString &displayScripts(UnicodeString &dest) const; // append script names to dest string.
ScriptSet & parseScripts(const UnicodeString &scriptsString, UErrorCode &status); // Replaces ScriptSet contents.
// Wraps around UScript::getScriptExtensions() and adds the corresponding scripts to this instance.
void setScriptExtensions(UChar32 codePoint, UErrorCode& status);
private:
uint32_t bits[SCRIPT_LIMIT / 32];
};
U_NAMESPACE_END
U_CAPI UBool U_EXPORT2
uhash_compareScriptSet(const UElement key1, const UElement key2);
U_CAPI int32_t U_EXPORT2
uhash_hashScriptSet(const UElement key);
U_CAPI void U_EXPORT2
uhash_deleteScriptSet(void *obj);
U_CAPI UBool U_EXPORT2
uhash_equalsScriptSet(const UElement key1, const UElement key2);
#endif // __SCRIPTSET_H__
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