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