1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4**********************************************************************
5* Copyright (C) 2013, International Business Machines
6* Corporation and others. All Rights Reserved.
7**********************************************************************
8*
9* scriptset.h
10*
11* created on: 2013 Jan 7
12* created by: Andy Heninger
13*/
14
15#ifndef __SCRIPTSET_H__
16#define __SCRIPTSET_H__
17
18#include "unicode/utypes.h"
19#include "unicode/uobject.h"
20#include "unicode/uscript.h"
21
22#include "uelement.h"
23
24U_NAMESPACE_BEGIN
25
26//-------------------------------------------------------------------------------
27//
28// ScriptSet - A bit set representing a set of scripts.
29//
30// This class was originally used exclusively with script sets appearing
31// as part of the spoof check whole script confusable binary data. Its
32// use has since become more general, but the continued use to wrap
33// prebuilt binary data does constrain the design.
34//
35//-------------------------------------------------------------------------------
36class U_I18N_API ScriptSet: public UMemory {
37 public:
38 ScriptSet();
39 ScriptSet(const ScriptSet &other);
40 ~ScriptSet();
41
42 UBool operator == (const ScriptSet &other) const;
43 UBool operator != (const ScriptSet &other) const {return !(*this == other);}
44 ScriptSet & operator = (const ScriptSet &other);
45
46 UBool test(UScriptCode script, UErrorCode &status) const;
47 ScriptSet &Union(const ScriptSet &other);
48 ScriptSet &set(UScriptCode script, UErrorCode &status);
49 ScriptSet &reset(UScriptCode script, UErrorCode &status);
50 ScriptSet &intersect(const ScriptSet &other);
51 ScriptSet &intersect(UScriptCode script, UErrorCode &status);
52 UBool intersects(const ScriptSet &other) const; // Sets contain at least one script in commmon.
53 UBool contains(const ScriptSet &other) const; // All set bits in other are also set in this.
54
55 ScriptSet &setAll();
56 ScriptSet &resetAll();
57 int32_t countMembers() const;
58 int32_t hashCode() const;
59 int32_t nextSetBit(int32_t script) const;
60
61 UBool isEmpty() const;
62
63 UnicodeString &displayScripts(UnicodeString &dest) const; // append script names to dest string.
64 ScriptSet & parseScripts(const UnicodeString &scriptsString, UErrorCode &status); // Replaces ScriptSet contents.
65
66 // Wraps around UScript::getScriptExtensions() and adds the corresponding scripts to this instance.
67 void setScriptExtensions(UChar32 codePoint, UErrorCode& status);
68
69 private:
70 uint32_t bits[6];
71};
72
73U_NAMESPACE_END
74
75U_CAPI UBool U_EXPORT2
76uhash_compareScriptSet(const UElement key1, const UElement key2);
77
78U_CAPI int32_t U_EXPORT2
79uhash_hashScriptSet(const UElement key);
80
81U_CAPI void U_EXPORT2
82uhash_deleteScriptSet(void *obj);
83
84#endif // __SCRIPTSET_H__
85