icuSources/i18n/dtptngen_impl.h

   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);
 147     UBool isPatternSeparator(UnicodeString& field);
 148     void setFilter(UErrorCode &status);
 149
 150 private:
 151    typedef enum TokenStatus {
 152        START,
 153        ADD_TOKEN,
 154        SYNTAX_ERROR,
 155        DONE
 156    } ToeknStatus;
 157
 158    TokenStatus status;
 159    virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
 160 };
 161
 162 class DistanceInfo : public UMemory {
 163 public:
 164     int32_t missingFieldMask;
 165     int32_t extraFieldMask;
 166
 167     DistanceInfo() {};
 168     virtual ~DistanceInfo() {};
 169     void clear() { missingFieldMask = extraFieldMask = 0; };
 170     void setTo(DistanceInfo& other);
 171     void addMissing(int32_t field) { missingFieldMask |= (1<<field); };
 172     void addExtra(int32_t field) { extraFieldMask |= (1<<field); };
 173 };
 174
 175 class DateTimeMatcher: public UMemory {
 176 public:
 177     PtnSkeleton skeleton;
 178
 179     void getBasePattern(UnicodeString &basePattern);
 180     UnicodeString getPattern();
 181     void set(const UnicodeString& pattern, FormatParser* fp);
 182     void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
 183     void copyFrom(const PtnSkeleton& skeleton);
 184     void copyFrom();
 185     PtnSkeleton* getSkeletonPtr();
 186     UBool equals(const DateTimeMatcher* other) const;
 187     int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo);
 188     DateTimeMatcher();
 189     DateTimeMatcher(const DateTimeMatcher& other);
 190     virtual ~DateTimeMatcher() {};
 191     int32_t getFieldMask();
 192 };
 193
 194 class PatternMap : public UMemory {
 195 public:
 196     PtnElem *boot[MAX_PATTERN_ENTRIES];
 197     PatternMap();
 198     virtual  ~PatternMap();
 199     void  add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
 200     const UnicodeString* getPatternFromBasePattern(UnicodeString& basePattern, UBool& skeletonWasSpecified);
 201     const UnicodeString* getPatternFromSkeleton(PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = 0);
 202     void copyFrom(const PatternMap& other, UErrorCode& status);
 203     PtnElem* getHeader(UChar baseChar);
 204     UBool equals(const PatternMap& other);
 205 private:
 206     UBool isDupAllowed;
 207     PtnElem*  getDuplicateElem(const UnicodeString &basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
 208 }; // end  PatternMap
 209
 210 class PatternMapIterator : public UMemory {
 211 public:
 212     PatternMapIterator();
 213     virtual ~PatternMapIterator();
 214     void set(PatternMap& patternMap);
 215     PtnSkeleton* getSkeleton();
 216     UBool hasNext();
 217     DateTimeMatcher& next();
 218 private:
 219     int32_t bootIndex;
 220     PtnElem *nodePtr;
 221     DateTimeMatcher *matcher;
 222     PatternMap *patternMap;
 223 };
 224
 225 class DTSkeletonEnumeration : public StringEnumeration {
 226 public:
 227     DTSkeletonEnumeration(PatternMap &patternMap, dtStrEnum type, UErrorCode& status);
 228     virtual ~DTSkeletonEnumeration();
 229     static UClassID U_EXPORT2 getStaticClassID(void);
 230     virtual UClassID getDynamicClassID(void) const;
 231     virtual const UnicodeString* snext(UErrorCode& status);
 232     virtual void reset(UErrorCode& status);
 233     virtual int32_t count(UErrorCode& status) const;
 234 private:
 235     int32_t pos;
 236     UBool isCanonicalItem(const UnicodeString& item);
 237     UVector *fSkeletons;
 238 };
 239
 240 class DTRedundantEnumeration : public StringEnumeration {
 241 public:
 242     DTRedundantEnumeration();
 243     virtual ~DTRedundantEnumeration();
 244     static UClassID U_EXPORT2 getStaticClassID(void);
 245     virtual UClassID getDynamicClassID(void) const;
 246     virtual const UnicodeString* snext(UErrorCode& status);
 247     virtual void reset(UErrorCode& status);
 248     virtual int32_t count(UErrorCode& status) const;
 249     void add(const UnicodeString &pattern, UErrorCode& status);
 250 private:
 251     int32_t pos;
 252     UBool isCanonicalItem(const UnicodeString& item);
 253     UVector *fPatterns;
 254 };
 255
 256 U_NAMESPACE_END
 257
 258 #endif