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1 /*
2 *******************************************************************************
3 * Copyright (C) 2007, International Business Machines Corporation and
4 * others. All Rights Reserved.                                                *
5 *******************************************************************************
6 *
7 * File DTPTNGEN.H
8 *
9 *******************************************************************************
10 */
11 
12 #include "uvector.h"
13 
14 #ifndef __DTPTNGEN_IMPL_H__
15 #define __DTPTNGEN_IMPL_H__
16 
17 // TODO(claireho): Split off Builder class.
18 // TODO(claireho): If splitting off Builder class: As subclass or independent?
19 
20 #define MAX_PATTERN_ENTRIES 52
21 #define MAX_CLDR_FIELD_LEN  60
22 #define MAX_DT_TOKEN        50
23 #define MAX_RESOURCE_FIELD  12
24 #define MAX_AVAILABLE_FORMATS  12
25 #define NONE          0
26 #define EXTRA_FIELD   0x10000
27 #define MISSING_FIELD  0x1000
28 #define MAX_STRING_ENUMERATION  200
29 #define SINGLE_QUOTE      ((UChar)0x0027)
30 #define FORWARDSLASH      ((UChar)0x002F)
31 #define BACKSLASH         ((UChar)0x005C)
32 #define SPACE             ((UChar)0x0020)
33 #define QUOTATION_MARK    ((UChar)0x0022)
34 #define ASTERISK          ((UChar)0x002A)
35 #define PLUSSITN          ((UChar)0x002B)
36 #define COMMA             ((UChar)0x002C)
37 #define HYPHEN            ((UChar)0x002D)
38 #define DOT               ((UChar)0x002E)
39 #define COLON             ((UChar)0x003A)
40 #define CAP_A             ((UChar)0x0041)
41 #define CAP_C             ((UChar)0x0043)
42 #define CAP_D             ((UChar)0x0044)
43 #define CAP_E             ((UChar)0x0045)
44 #define CAP_F             ((UChar)0x0046)
45 #define CAP_G             ((UChar)0x0047)
46 #define CAP_H             ((UChar)0x0048)
47 #define CAP_L             ((UChar)0x004C)
48 #define CAP_M             ((UChar)0x004D)
49 #define CAP_O             ((UChar)0x004F)
50 #define CAP_Q             ((UChar)0x0051)
51 #define CAP_S             ((UChar)0x0053)
52 #define CAP_T             ((UChar)0x0054)
53 #define CAP_V             ((UChar)0x0056)
54 #define CAP_W             ((UChar)0x0057)
55 #define CAP_Y             ((UChar)0x0059)
56 #define CAP_Z             ((UChar)0x005A)
57 #define LOWLINE           ((UChar)0x005F)
58 #define LOW_A             ((UChar)0x0061)
59 #define LOW_C             ((UChar)0x0063)
60 #define LOW_D             ((UChar)0x0064)
61 #define LOW_E             ((UChar)0x0065)
62 #define LOW_F             ((UChar)0x0066)
63 #define LOW_G             ((UChar)0x0067)
64 #define LOW_H             ((UChar)0x0068)
65 #define LOW_I             ((UChar)0x0069)
66 #define LOW_K             ((UChar)0x006B)
67 #define LOW_L             ((UChar)0x006C)
68 #define LOW_M             ((UChar)0x006D)
69 #define LOW_N             ((UChar)0x006E)
70 #define LOW_O             ((UChar)0x006F)
71 #define LOW_P             ((UChar)0x0070)
72 #define LOW_Q             ((UChar)0x0071)
73 #define LOW_R             ((UChar)0x0072)
74 #define LOW_S             ((UChar)0x0073)
75 #define LOW_T             ((UChar)0x0074)
76 #define LOW_U             ((UChar)0x0075)
77 #define LOW_V             ((UChar)0x0076)
78 #define LOW_W             ((UChar)0x0077)
79 #define LOW_Y             ((UChar)0x0079)
80 #define LOW_Z             ((UChar)0x007A)
81 #define DT_SHORT          -0x101
82 #define DT_LONG           -0x102
83 #define DT_NUMERIC         0x100
84 #define DT_NARROW         -0x100
85 #define DT_DELTA           0x10
86 
87 U_NAMESPACE_BEGIN
88 
89 const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
90 const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
91 
92 typedef enum dtStrEnum {
93     DT_BASESKELETON,
94     DT_SKELETON,
95     DT_PATTERN
96 }dtStrEnum;
97 
98 typedef struct dtTypeElem {
99     UChar                  patternChar;
100     UDateTimePatternField  field;
101     int32_t                type;
102     int32_t                minLen;
103     int32_t                weight;
104 }dtTypeElem;
105 
106 class PtnSkeleton : public UMemory {
107 public:
108     int32_t type[UDATPG_FIELD_COUNT];
109     UnicodeString original[UDATPG_FIELD_COUNT];
110     UnicodeString baseOriginal[UDATPG_FIELD_COUNT];
111 
112     PtnSkeleton();
113     PtnSkeleton(const PtnSkeleton& other);
114     UBool equals(const PtnSkeleton& other);
115     UnicodeString getSkeleton();
116     UnicodeString getBaseSkeleton();
117     virtual ~PtnSkeleton();
118 };
119 
120 
121 class PtnElem : public UMemory {
122 public:
123     UnicodeString basePattern;
124     PtnSkeleton   *skeleton;
125     UnicodeString pattern;
126     PtnElem       *next;
127 
128     PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
129     virtual ~PtnElem();
130 
131 };
132 
133 class FormatParser : public UMemory {
134 public:
135     UnicodeString items[MAX_DT_TOKEN];
136     int32_t  itemNumber;
137 
138     FormatParser();
139     virtual ~FormatParser();
140     void set(const UnicodeString& patternString);
141     UBool isQuoteLiteral(const UnicodeString& s) const;
142     void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
143     int32_t getCanonicalIndex(const UnicodeString& s);
144     UBool isPatternSeparator(UnicodeString& field);
145     void setFilter(UErrorCode &status);
146 
147 private:
148    typedef enum TokenStatus {
149        START,
150        ADD_TOKEN,
151        SYNTAX_ERROR,
152        DONE
153    } ToeknStatus;
154 
155    TokenStatus status;
156    virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
157 };
158 
159 class DistanceInfo : public UMemory {
160 public:
161     int32_t missingFieldMask;
162     int32_t extraFieldMask;
163 
DistanceInfo()164     DistanceInfo() {};
~DistanceInfo()165     virtual ~DistanceInfo() {};
clear()166     void clear() { missingFieldMask = extraFieldMask = 0; };
167     void setTo(DistanceInfo& other);
addMissing(int32_t field)168     void addMissing(int32_t field) { missingFieldMask |= (1<<field); };
addExtra(int32_t field)169     void addExtra(int32_t field) { extraFieldMask |= (1<<field); };
170 };
171 
172 class DateTimeMatcher: public UMemory {
173 public:
174     PtnSkeleton skeleton;
175 
176     void getBasePattern(UnicodeString &basePattern);
177     UnicodeString getPattern();
178     void set(const UnicodeString& pattern, FormatParser* fp);
179     void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
180     void copyFrom(const PtnSkeleton& skeleton);
181     void copyFrom();
182     PtnSkeleton* getSkeletonPtr();
183     UBool equals(const DateTimeMatcher* other) const;
184     int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo);
185     DateTimeMatcher();
186     DateTimeMatcher(const DateTimeMatcher& other);
~DateTimeMatcher()187     virtual ~DateTimeMatcher() {};
188     int32_t getFieldMask();
189 };
190 
191 class PatternMap : public UMemory {
192 public:
193     PtnElem *boot[MAX_PATTERN_ENTRIES];
194     PatternMap();
195     virtual  ~PatternMap();
196     void  add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UErrorCode& status);
197     UErrorCode status;
198     const UnicodeString* getPatternFromBasePattern(UnicodeString& basePattern);
199     const UnicodeString* getPatternFromSkeleton(PtnSkeleton& skeleton);
200     void copyFrom(const PatternMap& other, UErrorCode& status);
201     PtnElem* getHeader(UChar baseChar);
202     UBool equals(const PatternMap& other);
203 private:
204     UBool isDupAllowed;
205     PtnElem*  getDuplicateElem(const UnicodeString &basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
206 }; // end  PatternMap
207 
208 class PatternMapIterator : public UMemory {
209 public:
210     PatternMapIterator();
211     virtual ~PatternMapIterator();
212     void set(PatternMap& patternMap);
213     PtnSkeleton* getSkeleton();
214     UBool hasNext();
215     DateTimeMatcher& next();
216 private:
217     int32_t bootIndex;
218     PtnElem *nodePtr;
219     DateTimeMatcher *matcher;
220     PatternMap *patternMap;
221 };
222 
223 class U_I18N_API DTSkeletonEnumeration : public StringEnumeration {
224 public:
225     DTSkeletonEnumeration(PatternMap &patternMap, dtStrEnum type, UErrorCode& status);
226     virtual ~DTSkeletonEnumeration();
227     static UClassID U_EXPORT2 getStaticClassID(void);
228     virtual UClassID getDynamicClassID(void) const;
229     virtual const UnicodeString* snext(UErrorCode& status);
230     virtual void reset(UErrorCode& status);
231     virtual int32_t count(UErrorCode& status) const;
232 private:
233     int32_t pos;
234     UBool isCanonicalItem(const UnicodeString& item);
235     UVector *fSkeletons;
236 };
237 
238 class U_I18N_API DTRedundantEnumeration : public StringEnumeration {
239 public:
240     DTRedundantEnumeration();
241     virtual ~DTRedundantEnumeration();
242     static UClassID U_EXPORT2 getStaticClassID(void);
243     virtual UClassID getDynamicClassID(void) const;
244     virtual const UnicodeString* snext(UErrorCode& status);
245     virtual void reset(UErrorCode& status);
246     virtual int32_t count(UErrorCode& status) const;
247     void add(const UnicodeString &pattern, UErrorCode& status);
248 private:
249     int32_t pos;
250     UBool isCanonicalItem(const UnicodeString& item);
251     UVector *fPatterns;
252 };
253 
254 U_NAMESPACE_END
255 
256 #endif
257