icuSources/i18n/dtptngen_impl.h

   1 /*
   2 *******************************************************************************
   3 * Copyright (C) 2007-2016, International Business Machines Corporation and
   4 * others. All Rights Reserved.
   5 *******************************************************************************
   6 *
   7 * File DTPTNGEN.H
   8 *
   9 *******************************************************************************
  10 */
  11
  12 #ifndef __DTPTNGEN_IMPL_H__
  13 #define __DTPTNGEN_IMPL_H__
  14
  15 #include "unicode/udatpg.h"
  16 #include "uvector.h"
  17
  18 // TODO(claireho): Split off Builder class.
  19 // TODO(claireho): If splitting off Builder class: As subclass or independent?
  20
  21 #define MAX_PATTERN_ENTRIES 52
  22 #define MAX_CLDR_FIELD_LEN  60
  23 #define MAX_DT_TOKEN        50
  24 #define MAX_RESOURCE_FIELD  12
  25 #define MAX_AVAILABLE_FORMATS  12
  26 #define NONE          0
  27 #define EXTRA_FIELD   0x10000
  28 #define MISSING_FIELD  0x1000
  29 #define MAX_STRING_ENUMERATION  200
  30 #define SINGLE_QUOTE      ((UChar)0x0027)
  31 #define FORWARDSLASH      ((UChar)0x002F)
  32 #define BACKSLASH         ((UChar)0x005C)
  33 #define SPACE             ((UChar)0x0020)
  34 #define QUOTATION_MARK    ((UChar)0x0022)
  35 #define ASTERISK          ((UChar)0x002A)
  36 #define PLUSSITN          ((UChar)0x002B)
  37 #define COMMA             ((UChar)0x002C)
  38 #define HYPHEN            ((UChar)0x002D)
  39 #define DOT               ((UChar)0x002E)
  40 #define COLON             ((UChar)0x003A)
  41 #define CAP_A             ((UChar)0x0041)
  42 #define CAP_B             ((UChar)0x0042)
  43 #define CAP_C             ((UChar)0x0043)
  44 #define CAP_D             ((UChar)0x0044)
  45 #define CAP_E             ((UChar)0x0045)
  46 #define CAP_F             ((UChar)0x0046)
  47 #define CAP_G             ((UChar)0x0047)
  48 #define CAP_H             ((UChar)0x0048)
  49 #define CAP_J             ((UChar)0x004A)
  50 #define CAP_K             ((UChar)0x004B)
  51 #define CAP_L             ((UChar)0x004C)
  52 #define CAP_M             ((UChar)0x004D)
  53 #define CAP_O             ((UChar)0x004F)
  54 #define CAP_Q             ((UChar)0x0051)
  55 #define CAP_S             ((UChar)0x0053)
  56 #define CAP_T             ((UChar)0x0054)
  57 #define CAP_U             ((UChar)0x0055)
  58 #define CAP_V             ((UChar)0x0056)
  59 #define CAP_W             ((UChar)0x0057)
  60 #define CAP_X             ((UChar)0x0058)
  61 #define CAP_Y             ((UChar)0x0059)
  62 #define CAP_Z             ((UChar)0x005A)
  63 #define LOWLINE           ((UChar)0x005F)
  64 #define LOW_A             ((UChar)0x0061)
  65 #define LOW_B             ((UChar)0x0062)
  66 #define LOW_C             ((UChar)0x0063)
  67 #define LOW_D             ((UChar)0x0064)
  68 #define LOW_E             ((UChar)0x0065)
  69 #define LOW_F             ((UChar)0x0066)
  70 #define LOW_G             ((UChar)0x0067)
  71 #define LOW_H             ((UChar)0x0068)
  72 #define LOW_I             ((UChar)0x0069)
  73 #define LOW_J             ((UChar)0x006A)
  74 #define LOW_K             ((UChar)0x006B)
  75 #define LOW_L             ((UChar)0x006C)
  76 #define LOW_M             ((UChar)0x006D)
  77 #define LOW_N             ((UChar)0x006E)
  78 #define LOW_O             ((UChar)0x006F)
  79 #define LOW_P             ((UChar)0x0070)
  80 #define LOW_Q             ((UChar)0x0071)
  81 #define LOW_R             ((UChar)0x0072)
  82 #define LOW_S             ((UChar)0x0073)
  83 #define LOW_T             ((UChar)0x0074)
  84 #define LOW_U             ((UChar)0x0075)
  85 #define LOW_V             ((UChar)0x0076)
  86 #define LOW_W             ((UChar)0x0077)
  87 #define LOW_X             ((UChar)0x0078)
  88 #define LOW_Y             ((UChar)0x0079)
  89 #define LOW_Z             ((UChar)0x007A)
  90 #define DT_SHORT          -0x102
  91 #define DT_LONG           -0x103
  92 #define DT_NUMERIC         0x100
  93 #define DT_NARROW         -0x101
  94 #define DT_DELTA           0x10
  95
  96 U_NAMESPACE_BEGIN
  97
  98 const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
  99 const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
 100
 101 typedef enum dtStrEnum {
 102     DT_BASESKELETON,
 103     DT_SKELETON,
 104     DT_PATTERN
 105 }dtStrEnum;
 106
 107 typedef struct dtTypeElem {
 108     UChar                  patternChar;
 109     UDateTimePatternField  field;
 110     int16_t                type;
 111     int16_t                minLen;
 112     int16_t                weight;
 113 }dtTypeElem;
 114
 115 class PtnSkeleton : public UMemory {
 116 public:
 117     int32_t type[UDATPG_FIELD_COUNT];
 118     UnicodeString original[UDATPG_FIELD_COUNT];
 119     UnicodeString baseOriginal[UDATPG_FIELD_COUNT];
 120
 121     PtnSkeleton();
 122     PtnSkeleton(const PtnSkeleton& other);
 123     UBool equals(const PtnSkeleton& other);
 124     UnicodeString getSkeleton();
 125     UnicodeString getBaseSkeleton();
 126     virtual ~PtnSkeleton();
 127 };
 128
 129
 130 class PtnElem : public UMemory {
 131 public:
 132     UnicodeString basePattern;
 133     PtnSkeleton   *skeleton;
 134     UnicodeString pattern;
 135     UBool         skeletonWasSpecified; // if specified in availableFormats, not derived
 136     PtnElem       *next;
 137
 138     PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
 139     virtual ~PtnElem();
 140
 141 };
 142
 143 class FormatParser : public UMemory {
 144 public:
 145     UnicodeString items[MAX_DT_TOKEN];
 146     int32_t  itemNumber;
 147
 148     FormatParser();
 149     virtual ~FormatParser();
 150     void set(const UnicodeString& patternString);
 151     void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
 152     UBool isPatternSeparator(UnicodeString& field);
 153     static UBool isQuoteLiteral(const UnicodeString& s);
 154     static int32_t getCanonicalIndex(const UnicodeString& s) { return getCanonicalIndex(s, TRUE); }
 155     static int32_t getCanonicalIndex(const UnicodeString& s, UBool strict);
 156
 157 private:
 158    typedef enum TokenStatus {
 159        START,
 160        ADD_TOKEN,
 161        SYNTAX_ERROR,
 162        DONE
 163    } ToeknStatus;
 164
 165    TokenStatus status;
 166    virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
 167 };
 168
 169 class DistanceInfo : public UMemory {
 170 public:
 171     int32_t missingFieldMask;
 172     int32_t extraFieldMask;
 173
 174     DistanceInfo() {}
 175     virtual ~DistanceInfo();
 176     void clear() { missingFieldMask = extraFieldMask = 0; }
 177     void setTo(DistanceInfo& other);
 178     void addMissing(int32_t field) { missingFieldMask |= (1<<field); }
 179     void addExtra(int32_t field) { extraFieldMask |= (1<<field); }
 180 };
 181
 182 class DateTimeMatcher: public UMemory {
 183 public:
 184     PtnSkeleton skeleton;
 185
 186     void getBasePattern(UnicodeString &basePattern);
 187     UnicodeString getPattern();
 188     void set(const UnicodeString& pattern, FormatParser* fp);
 189     void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
 190     void copyFrom(const PtnSkeleton& skeleton);
 191     void copyFrom();
 192     PtnSkeleton* getSkeletonPtr();
 193     UBool equals(const DateTimeMatcher* other) const;
 194     int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo);
 195     DateTimeMatcher();
 196     DateTimeMatcher(const DateTimeMatcher& other);
 197     virtual ~DateTimeMatcher();
 198     int32_t getFieldMask();
 199 };
 200
 201 class PatternMap : public UMemory {
 202 public:
 203     PtnElem *boot[MAX_PATTERN_ENTRIES];
 204     PatternMap();
 205     virtual  ~PatternMap();
 206     void  add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
 207     const UnicodeString* getPatternFromBasePattern(UnicodeString& basePattern, UBool& skeletonWasSpecified);
 208     const UnicodeString* getPatternFromSkeleton(PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = 0);
 209     void copyFrom(const PatternMap& other, UErrorCode& status);
 210     PtnElem* getHeader(UChar baseChar);
 211     UBool equals(const PatternMap& other);
 212 private:
 213     UBool isDupAllowed;
 214     PtnElem*  getDuplicateElem(const UnicodeString &basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
 215 }; // end  PatternMap
 216
 217 class PatternMapIterator : public UMemory {
 218 public:
 219     PatternMapIterator();
 220     virtual ~PatternMapIterator();
 221     void set(PatternMap& patternMap);
 222     PtnSkeleton* getSkeleton();
 223     UBool hasNext();
 224     DateTimeMatcher& next();
 225 private:
 226     int32_t bootIndex;
 227     PtnElem *nodePtr;
 228     DateTimeMatcher *matcher;
 229     PatternMap *patternMap;
 230 };
 231
 232 class DTSkeletonEnumeration : public StringEnumeration {
 233 public:
 234     DTSkeletonEnumeration(PatternMap &patternMap, dtStrEnum type, UErrorCode& status);
 235     virtual ~DTSkeletonEnumeration();
 236     static UClassID U_EXPORT2 getStaticClassID(void);
 237     virtual UClassID getDynamicClassID(void) const;
 238     virtual const UnicodeString* snext(UErrorCode& status);
 239     virtual void reset(UErrorCode& status);
 240     virtual int32_t count(UErrorCode& status) const;
 241 private:
 242     int32_t pos;
 243     UBool isCanonicalItem(const UnicodeString& item);
 244     UVector *fSkeletons;
 245 };
 246
 247 class DTRedundantEnumeration : public StringEnumeration {
 248 public:
 249     DTRedundantEnumeration();
 250     virtual ~DTRedundantEnumeration();
 251     static UClassID U_EXPORT2 getStaticClassID(void);
 252     virtual UClassID getDynamicClassID(void) const;
 253     virtual const UnicodeString* snext(UErrorCode& status);
 254     virtual void reset(UErrorCode& status);
 255     virtual int32_t count(UErrorCode& status) const;
 256     void add(const UnicodeString &pattern, UErrorCode& status);
 257 private:
 258     int32_t pos;
 259     UBool isCanonicalItem(const UnicodeString& item);
 260     UVector *fPatterns;
 261 };
 262
 263 U_NAMESPACE_END
 264
 265 #endif