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1 /*
2 *******************************************************************************
3 * Copyright (C) 2007-2009, 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_K ((UChar)0x004B)
48 #define CAP_L ((UChar)0x004C)
49 #define CAP_M ((UChar)0x004D)
50 #define CAP_O ((UChar)0x004F)
51 #define CAP_Q ((UChar)0x0051)
52 #define CAP_S ((UChar)0x0053)
53 #define CAP_T ((UChar)0x0054)
54 #define CAP_V ((UChar)0x0056)
55 #define CAP_W ((UChar)0x0057)
56 #define CAP_Y ((UChar)0x0059)
57 #define CAP_Z ((UChar)0x005A)
58 #define LOWLINE ((UChar)0x005F)
59 #define LOW_A ((UChar)0x0061)
60 #define LOW_C ((UChar)0x0063)
61 #define LOW_D ((UChar)0x0064)
62 #define LOW_E ((UChar)0x0065)
63 #define LOW_F ((UChar)0x0066)
64 #define LOW_G ((UChar)0x0067)
65 #define LOW_H ((UChar)0x0068)
66 #define LOW_I ((UChar)0x0069)
67 #define LOW_J ((UChar)0x006A)
68 #define LOW_K ((UChar)0x006B)
69 #define LOW_L ((UChar)0x006C)
70 #define LOW_M ((UChar)0x006D)
71 #define LOW_N ((UChar)0x006E)
72 #define LOW_O ((UChar)0x006F)
73 #define LOW_P ((UChar)0x0070)
74 #define LOW_Q ((UChar)0x0071)
75 #define LOW_R ((UChar)0x0072)
76 #define LOW_S ((UChar)0x0073)
77 #define LOW_T ((UChar)0x0074)
78 #define LOW_U ((UChar)0x0075)
79 #define LOW_V ((UChar)0x0076)
80 #define LOW_W ((UChar)0x0077)
81 #define LOW_Y ((UChar)0x0079)
82 #define LOW_Z ((UChar)0x007A)
83 #define DT_SHORT -0x102
84 #define DT_LONG -0x103
85 #define DT_NUMERIC 0x100
86 #define DT_NARROW -0x101
87 #define DT_DELTA 0x10
88
89 U_NAMESPACE_BEGIN
90
91 const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
92 const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
93
94 typedef enum dtStrEnum {
95 DT_BASESKELETON,
96 DT_SKELETON,
97 DT_PATTERN
98 }dtStrEnum;
99
100 typedef struct dtTypeElem {
101 UChar patternChar;
102 UDateTimePatternField field;
103 int16_t type;
104 int16_t minLen;
105 int16_t weight;
106 }dtTypeElem;
107
108 class PtnSkeleton : public UMemory {
109 public:
110 int32_t type[UDATPG_FIELD_COUNT];
111 UnicodeString original[UDATPG_FIELD_COUNT];
112 UnicodeString baseOriginal[UDATPG_FIELD_COUNT];
113
114 PtnSkeleton();
115 PtnSkeleton(const PtnSkeleton& other);
116 UBool equals(const PtnSkeleton& other);
117 UnicodeString getSkeleton();
118 UnicodeString getBaseSkeleton();
119 virtual ~PtnSkeleton();
120 };
121
122
123 class PtnElem : public UMemory {
124 public:
125 UnicodeString basePattern;
126 PtnSkeleton *skeleton;
127 UnicodeString pattern;
128 UBool skeletonWasSpecified; // if specified in availableFormats, not derived
129 PtnElem *next;
130
131 PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
132 virtual ~PtnElem();
133
134 };
135
136 class FormatParser : public UMemory {
137 public:
138 UnicodeString items[MAX_DT_TOKEN];
139 int32_t itemNumber;
140
141 FormatParser();
142 virtual ~FormatParser();
143 void set(const UnicodeString& patternString);
144 UBool isQuoteLiteral(const UnicodeString& s) const;
145 void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
146 int32_t getCanonicalIndex(const UnicodeString& s) { return getCanonicalIndex(s, TRUE); };
147 int32_t getCanonicalIndex(const UnicodeString& s, UBool strict);
148 UBool isPatternSeparator(UnicodeString& field);
149 void setFilter(UErrorCode &status);
150
151 private:
152 typedef enum TokenStatus {
153 START,
154 ADD_TOKEN,
155 SYNTAX_ERROR,
156 DONE
157 } ToeknStatus;
158
159 TokenStatus status;
160 virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
161 };
162
163 class DistanceInfo : public UMemory {
164 public:
165 int32_t missingFieldMask;
166 int32_t extraFieldMask;
167
168 DistanceInfo() {};
169 virtual ~DistanceInfo() {};
170 void clear() { missingFieldMask = extraFieldMask = 0; };
171 void setTo(DistanceInfo& other);
172 void addMissing(int32_t field) { missingFieldMask |= (1<<field); };
173 void addExtra(int32_t field) { extraFieldMask |= (1<<field); };
174 };
175
176 class DateTimeMatcher: public UMemory {
177 public:
178 PtnSkeleton skeleton;
179
180 void getBasePattern(UnicodeString &basePattern);
181 UnicodeString getPattern();
182 void set(const UnicodeString& pattern, FormatParser* fp);
183 void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
184 void copyFrom(const PtnSkeleton& skeleton);
185 void copyFrom();
186 PtnSkeleton* getSkeletonPtr();
187 UBool equals(const DateTimeMatcher* other) const;
188 int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo);
189 DateTimeMatcher();
190 DateTimeMatcher(const DateTimeMatcher& other);
191 virtual ~DateTimeMatcher() {};
192 int32_t getFieldMask();
193 };
194
195 class PatternMap : public UMemory {
196 public:
197 PtnElem *boot[MAX_PATTERN_ENTRIES];
198 PatternMap();
199 virtual ~PatternMap();
200 void add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
201 const UnicodeString* getPatternFromBasePattern(UnicodeString& basePattern, UBool& skeletonWasSpecified);
202 const UnicodeString* getPatternFromSkeleton(PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = 0);
203 void copyFrom(const PatternMap& other, UErrorCode& status);
204 PtnElem* getHeader(UChar baseChar);
205 UBool equals(const PatternMap& other);
206 private:
207 UBool isDupAllowed;
208 PtnElem* getDuplicateElem(const UnicodeString &basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
209 }; // end PatternMap
210
211 class PatternMapIterator : public UMemory {
212 public:
213 PatternMapIterator();
214 virtual ~PatternMapIterator();
215 void set(PatternMap& patternMap);
216 PtnSkeleton* getSkeleton();
217 UBool hasNext();
218 DateTimeMatcher& next();
219 private:
220 int32_t bootIndex;
221 PtnElem *nodePtr;
222 DateTimeMatcher *matcher;
223 PatternMap *patternMap;
224 };
225
226 class DTSkeletonEnumeration : public StringEnumeration {
227 public:
228 DTSkeletonEnumeration(PatternMap &patternMap, dtStrEnum type, UErrorCode& status);
229 virtual ~DTSkeletonEnumeration();
230 static UClassID U_EXPORT2 getStaticClassID(void);
231 virtual UClassID getDynamicClassID(void) const;
232 virtual const UnicodeString* snext(UErrorCode& status);
233 virtual void reset(UErrorCode& status);
234 virtual int32_t count(UErrorCode& status) const;
235 private:
236 int32_t pos;
237 UBool isCanonicalItem(const UnicodeString& item);
238 UVector *fSkeletons;
239 };
240
241 class DTRedundantEnumeration : public StringEnumeration {
242 public:
243 DTRedundantEnumeration();
244 virtual ~DTRedundantEnumeration();
245 static UClassID U_EXPORT2 getStaticClassID(void);
246 virtual UClassID getDynamicClassID(void) const;
247 virtual const UnicodeString* snext(UErrorCode& status);
248 virtual void reset(UErrorCode& status);
249 virtual int32_t count(UErrorCode& status) const;
250 void add(const UnicodeString &pattern, UErrorCode& status);
251 private:
252 int32_t pos;
253 UBool isCanonicalItem(const UnicodeString& item);
254 UVector *fPatterns;
255 };
256
257 U_NAMESPACE_END
258
259 #endif