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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 "unicode/utypes.h"
+#include "unicode/uobject.h"
+#include "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_