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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);
getCanonicalIndex(const UnicodeString & s)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 
DistanceInfo()168     DistanceInfo() {};
~DistanceInfo()169     virtual ~DistanceInfo() {};
clear()170     void clear() { missingFieldMask = extraFieldMask = 0; };
171     void setTo(DistanceInfo& other);
addMissing(int32_t field)172     void addMissing(int32_t field) { missingFieldMask |= (1<<field); };
addExtra(int32_t 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);
~DateTimeMatcher()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
260