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1 // © 2017 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 
4 #include "unicode/utypes.h"
5 
6 #if !UCONFIG_NO_FORMATTING
7 #ifndef __NUMBER_COMPACT_H__
8 #define __NUMBER_COMPACT_H__
9 
10 #include "standardplural.h"
11 #include "number_types.h"
12 #include "unicode/unum.h"
13 #include "uvector.h"
14 #include "resource.h"
15 #include "number_patternmodifier.h"
16 
17 U_NAMESPACE_BEGIN namespace number {
18 namespace impl {
19 
20 static const int32_t COMPACT_MAX_DIGITS = 15;
21 
22 class CompactData : public MultiplierProducer {
23   public:
24     CompactData();
25 
26     void populate(const Locale &locale, const char *nsName, CompactStyle compactStyle,
27                   CompactType compactType, UErrorCode &status);
28 
29     int32_t getMultiplier(int32_t magnitude) const U_OVERRIDE;
30 
31     const UChar *getPattern(int32_t magnitude, StandardPlural::Form plural) const;
32 
33     void getUniquePatterns(UVector &output, UErrorCode &status) const;
34 
35   private:
36     const UChar *patterns[(COMPACT_MAX_DIGITS + 1) * StandardPlural::COUNT];
37     int8_t multipliers[COMPACT_MAX_DIGITS + 1];
38     int8_t largestMagnitude;
39     UBool isEmpty;
40 
41     class CompactDataSink : public ResourceSink {
42       public:
CompactDataSink(CompactData & data)43         explicit CompactDataSink(CompactData &data) : data(data) {}
44 
45         void put(const char *key, ResourceValue &value, UBool /*noFallback*/, UErrorCode &status) U_OVERRIDE;
46 
47       private:
48         CompactData &data;
49     };
50 };
51 
52 struct CompactModInfo {
53     const ImmutablePatternModifier *mod;
54     const UChar* patternString;
55 };
56 
57 class CompactHandler : public MicroPropsGenerator, public UMemory {
58   public:
59     CompactHandler(CompactStyle compactStyle, const Locale &locale, const char *nsName,
60                    CompactType compactType, const PluralRules *rules,
61                    MutablePatternModifier *buildReference, const MicroPropsGenerator *parent,
62                    UErrorCode &status);
63 
64     ~CompactHandler() U_OVERRIDE;
65 
66     void
67     processQuantity(DecimalQuantity &quantity, MicroProps &micros, UErrorCode &status) const U_OVERRIDE;
68 
69   private:
70     const PluralRules *rules;
71     const MicroPropsGenerator *parent;
72     // Initial capacity of 12 for 0K, 00K, 000K, ...M, ...B, and ...T
73     MaybeStackArray<CompactModInfo, 12> precomputedMods;
74     int32_t precomputedModsLength = 0;
75     CompactData data;
76     ParsedPatternInfo unsafePatternInfo;
77     UBool safe;
78 
79     /** Used by the safe code path */
80     void precomputeAllModifiers(MutablePatternModifier &buildReference, UErrorCode &status);
81 };
82 
83 
84 } // namespace impl
85 } // namespace number
86 U_NAMESPACE_END
87 
88 #endif //__NUMBER_COMPACT_H__
89 
90 #endif /* #if !UCONFIG_NO_FORMATTING */
91