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