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Diffstat (limited to 'thirdparty/icu4c/i18n/scriptset.h')
-rw-r--r-- | thirdparty/icu4c/i18n/scriptset.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/thirdparty/icu4c/i18n/scriptset.h b/thirdparty/icu4c/i18n/scriptset.h new file mode 100644 index 0000000000..df5cfdc748 --- /dev/null +++ b/thirdparty/icu4c/i18n/scriptset.h @@ -0,0 +1,89 @@ +// © 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_ |