michael@0: /*
michael@0: **********************************************************************
michael@0: *   Copyright (C) 2013, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: **********************************************************************
michael@0: *
michael@0: * scriptset.h
michael@0: *
michael@0: * created on: 2013 Jan 7
michael@0: * created by: Andy Heninger
michael@0: */
michael@0: 
michael@0: #ifndef __SCRIPTSET_H__
michael@0: #define __SCRIPTSET_H__
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: #include "unicode/uobject.h"
michael@0: #include "unicode/uscript.h"
michael@0: 
michael@0: #include "uelement.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: //-------------------------------------------------------------------------------
michael@0: //
michael@0: //  ScriptSet - A bit set representing a set of scripts.
michael@0: //
michael@0: //              This class was originally used exclusively with script sets appearing
michael@0: //              as part of the spoof check whole script confusable binary data. Its
michael@0: //              use has since become more general, but the continued use to wrap
michael@0: //              prebuilt binary data does constrain the design.
michael@0: //
michael@0: //-------------------------------------------------------------------------------
michael@0: class U_I18N_API ScriptSet: public UMemory {
michael@0:   public:
michael@0:     ScriptSet();
michael@0:     ScriptSet(const ScriptSet &other);
michael@0:     ~ScriptSet();
michael@0: 
michael@0:     UBool operator == (const ScriptSet &other) const;
michael@0:     ScriptSet & operator = (const ScriptSet &other);
michael@0: 
michael@0:     UBool      test(UScriptCode script, UErrorCode &status) const;
michael@0:     ScriptSet &Union(const ScriptSet &other);
michael@0:     ScriptSet &set(UScriptCode script, UErrorCode &status);
michael@0:     ScriptSet &reset(UScriptCode script, UErrorCode &status);
michael@0:     ScriptSet &intersect(const ScriptSet &other);
michael@0:     ScriptSet &intersect(UScriptCode script, UErrorCode &status);
michael@0:     UBool      intersects(const ScriptSet &other) const;  // Sets contain at least one script in commmon.
michael@0:     UBool      contains(const ScriptSet &other) const;    // All set bits in other are also set in this.
michael@0: 
michael@0:     ScriptSet &setAll();
michael@0:     ScriptSet &resetAll();
michael@0:     int32_t countMembers() const;
michael@0:     int32_t hashCode() const;
michael@0:     int32_t nextSetBit(int32_t script) const;
michael@0: 
michael@0:     UnicodeString &displayScripts(UnicodeString &dest) const; // append script names to dest string.
michael@0:     ScriptSet & parseScripts(const UnicodeString &scriptsString, UErrorCode &status);  // Replaces ScriptSet contents.
michael@0: 
michael@0:   private:
michael@0:     uint32_t  bits[6];
michael@0: };
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: U_CAPI UBool U_EXPORT2
michael@0: uhash_compareScriptSet(const UElement key1, const UElement key2);
michael@0: 
michael@0: U_CAPI int32_t U_EXPORT2
michael@0: uhash_hashScriptSet(const UElement key);
michael@0: 
michael@0: U_CAPI void U_EXPORT2
michael@0: uhash_deleteScriptSet(void *obj);
michael@0: 
michael@0: #endif // __SCRIPTSET_H__