1 /*
2 *******************************************************************************
3 * Copyright (C) 2007-2014, 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_J             ((UChar)0x004A)
48 #define CAP_K             ((UChar)0x004B)
49 #define CAP_L             ((UChar)0x004C)
50 #define CAP_M             ((UChar)0x004D)
51 #define CAP_O             ((UChar)0x004F)
52 #define CAP_Q             ((UChar)0x0051)
53 #define CAP_S             ((UChar)0x0053)
54 #define CAP_T             ((UChar)0x0054)
55 #define CAP_U             ((UChar)0x0055)
56 #define CAP_V             ((UChar)0x0056)
57 #define CAP_W             ((UChar)0x0057)
58 #define CAP_X             ((UChar)0x0058)
59 #define CAP_Y             ((UChar)0x0059)
60 #define CAP_Z             ((UChar)0x005A)
61 #define LOWLINE           ((UChar)0x005F)
62 #define LOW_A             ((UChar)0x0061)
63 #define LOW_C             ((UChar)0x0063)
64 #define LOW_D             ((UChar)0x0064)
65 #define LOW_E             ((UChar)0x0065)
66 #define LOW_F             ((UChar)0x0066)
67 #define LOW_G             ((UChar)0x0067)
68 #define LOW_H             ((UChar)0x0068)
69 #define LOW_I             ((UChar)0x0069)
70 #define LOW_J             ((UChar)0x006A)
71 #define LOW_K             ((UChar)0x006B)
72 #define LOW_L             ((UChar)0x006C)
73 #define LOW_M             ((UChar)0x006D)
74 #define LOW_N             ((UChar)0x006E)
75 #define LOW_O             ((UChar)0x006F)
76 #define LOW_P             ((UChar)0x0070)
77 #define LOW_Q             ((UChar)0x0071)
78 #define LOW_R             ((UChar)0x0072)
79 #define LOW_S             ((UChar)0x0073)
80 #define LOW_T             ((UChar)0x0074)
81 #define LOW_U             ((UChar)0x0075)
82 #define LOW_V             ((UChar)0x0076)
83 #define LOW_W             ((UChar)0x0077)
84 #define LOW_X             ((UChar)0x0078)
85 #define LOW_Y             ((UChar)0x0079)
86 #define LOW_Z             ((UChar)0x007A)
87 #define DT_SHORT          -0x102
88 #define DT_LONG           -0x103
89 #define DT_NUMERIC         0x100
90 #define DT_NARROW         -0x101
91 #define DT_DELTA           0x10
92 
93 U_NAMESPACE_BEGIN
94 
95 const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
96 const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
97 
98 typedef enum dtStrEnum {
99     DT_BASESKELETON,
100     DT_SKELETON,
101     DT_PATTERN
102 }dtStrEnum;
103 
104 typedef struct dtTypeElem {
105     UChar                  patternChar;
106     UDateTimePatternField  field;
107     int16_t                type;
108     int16_t                minLen;
109     int16_t                weight;
110 }dtTypeElem;
111 
112 class PtnSkeleton : public UMemory {
113 public:
114     int32_t type[UDATPG_FIELD_COUNT];
115     UnicodeString original[UDATPG_FIELD_COUNT];
116     UnicodeString baseOriginal[UDATPG_FIELD_COUNT];
117 
118     PtnSkeleton();
119     PtnSkeleton(const PtnSkeleton& other);
120     UBool equals(const PtnSkeleton& other);
121     UnicodeString getSkeleton();
122     UnicodeString getBaseSkeleton();
123     virtual ~PtnSkeleton();
124 };
125 
126 
127 class PtnElem : public UMemory {
128 public:
129     UnicodeString basePattern;
130     PtnSkeleton   *skeleton;
131     UnicodeString pattern;
132     UBool         skeletonWasSpecified; // if specified in availableFormats, not derived
133     PtnElem       *next;
134 
135     PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
136     virtual ~PtnElem();
137 
138 };
139 
140 class FormatParser : public UMemory {
141 public:
142     UnicodeString items[MAX_DT_TOKEN];
143     int32_t  itemNumber;
144 
145     FormatParser();
146     virtual ~FormatParser();
147     void set(const UnicodeString& patternString);
148     UBool isQuoteLiteral(const UnicodeString& s) const;
149     void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
getCanonicalIndex(const UnicodeString & s)150     int32_t getCanonicalIndex(const UnicodeString& s) { return getCanonicalIndex(s, TRUE); }
151     int32_t getCanonicalIndex(const UnicodeString& s, UBool strict);
152     UBool isPatternSeparator(UnicodeString& field);
153     void setFilter(UErrorCode &status);
154 
155 private:
156    typedef enum TokenStatus {
157        START,
158        ADD_TOKEN,
159        SYNTAX_ERROR,
160        DONE
161    } ToeknStatus;
162 
163    TokenStatus status;
164    virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
165 };
166 
167 class DistanceInfo : public UMemory {
168 public:
169     int32_t missingFieldMask;
170     int32_t extraFieldMask;
171 
DistanceInfo()172     DistanceInfo() {}
173     virtual ~DistanceInfo();
clear()174     void clear() { missingFieldMask = extraFieldMask = 0; }
175     void setTo(DistanceInfo& other);
addMissing(int32_t field)176     void addMissing(int32_t field) { missingFieldMask |= (1<<field); }
addExtra(int32_t field)177     void addExtra(int32_t field) { extraFieldMask |= (1<<field); }
178 };
179 
180 class DateTimeMatcher: public UMemory {
181 public:
182     PtnSkeleton skeleton;
183 
184     void getBasePattern(UnicodeString &basePattern);
185     UnicodeString getPattern();
186     void set(const UnicodeString& pattern, FormatParser* fp);
187     void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
188     void copyFrom(const PtnSkeleton& skeleton);
189     void copyFrom();
190     PtnSkeleton* getSkeletonPtr();
191     UBool equals(const DateTimeMatcher* other) const;
192     int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo);
193     DateTimeMatcher();
194     DateTimeMatcher(const DateTimeMatcher& other);
195     virtual ~DateTimeMatcher();
196     int32_t getFieldMask();
197 };
198 
199 class PatternMap : public UMemory {
200 public:
201     PtnElem *boot[MAX_PATTERN_ENTRIES];
202     PatternMap();
203     virtual  ~PatternMap();
204     void  add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
205     const UnicodeString* getPatternFromBasePattern(UnicodeString& basePattern, UBool& skeletonWasSpecified);
206     const UnicodeString* getPatternFromSkeleton(PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = 0);
207     void copyFrom(const PatternMap& other, UErrorCode& status);
208     PtnElem* getHeader(UChar baseChar);
209     UBool equals(const PatternMap& other);
210 private:
211     UBool isDupAllowed;
212     PtnElem*  getDuplicateElem(const UnicodeString &basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
213 }; // end  PatternMap
214 
215 class PatternMapIterator : public UMemory {
216 public:
217     PatternMapIterator();
218     virtual ~PatternMapIterator();
219     void set(PatternMap& patternMap);
220     PtnSkeleton* getSkeleton();
221     UBool hasNext();
222     DateTimeMatcher& next();
223 private:
224     int32_t bootIndex;
225     PtnElem *nodePtr;
226     DateTimeMatcher *matcher;
227     PatternMap *patternMap;
228 };
229 
230 class DTSkeletonEnumeration : public StringEnumeration {
231 public:
232     DTSkeletonEnumeration(PatternMap &patternMap, dtStrEnum type, UErrorCode& status);
233     virtual ~DTSkeletonEnumeration();
234     static UClassID U_EXPORT2 getStaticClassID(void);
235     virtual UClassID getDynamicClassID(void) const;
236     virtual const UnicodeString* snext(UErrorCode& status);
237     virtual void reset(UErrorCode& status);
238     virtual int32_t count(UErrorCode& status) const;
239 private:
240     int32_t pos;
241     UBool isCanonicalItem(const UnicodeString& item);
242     UVector *fSkeletons;
243 };
244 
245 class DTRedundantEnumeration : public StringEnumeration {
246 public:
247     DTRedundantEnumeration();
248     virtual ~DTRedundantEnumeration();
249     static UClassID U_EXPORT2 getStaticClassID(void);
250     virtual UClassID getDynamicClassID(void) const;
251     virtual const UnicodeString* snext(UErrorCode& status);
252     virtual void reset(UErrorCode& status);
253     virtual int32_t count(UErrorCode& status) const;
254     void add(const UnicodeString &pattern, UErrorCode& status);
255 private:
256     int32_t pos;
257     UBool isCanonicalItem(const UnicodeString& item);
258     UVector *fPatterns;
259 };
260 
261 U_NAMESPACE_END
262 
263 #endif
264