icuSources/i18n/dtptngen_impl.h

   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);
 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
 172     DistanceInfo() {}
 173     virtual ~DistanceInfo();
 174     void clear() { missingFieldMask = extraFieldMask = 0; }
 175     void setTo(DistanceInfo& other);
 176     void addMissing(int32_t field) { missingFieldMask |= (1<<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