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      1 /*
      2 *******************************************************************************
      3 * Copyright (C) 2007-2012, 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_U             ((UChar)0x0055)
     55 #define CAP_V             ((UChar)0x0056)
     56 #define CAP_W             ((UChar)0x0057)
     57 #define CAP_Y             ((UChar)0x0059)
     58 #define CAP_Z             ((UChar)0x005A)
     59 #define LOWLINE           ((UChar)0x005F)
     60 #define LOW_A             ((UChar)0x0061)
     61 #define LOW_C             ((UChar)0x0063)
     62 #define LOW_D             ((UChar)0x0064)
     63 #define LOW_E             ((UChar)0x0065)
     64 #define LOW_F             ((UChar)0x0066)
     65 #define LOW_G             ((UChar)0x0067)
     66 #define LOW_H             ((UChar)0x0068)
     67 #define LOW_I             ((UChar)0x0069)
     68 #define LOW_J             ((UChar)0x006A)
     69 #define LOW_K             ((UChar)0x006B)
     70 #define LOW_L             ((UChar)0x006C)
     71 #define LOW_M             ((UChar)0x006D)
     72 #define LOW_N             ((UChar)0x006E)
     73 #define LOW_O             ((UChar)0x006F)
     74 #define LOW_P             ((UChar)0x0070)
     75 #define LOW_Q             ((UChar)0x0071)
     76 #define LOW_R             ((UChar)0x0072)
     77 #define LOW_S             ((UChar)0x0073)
     78 #define LOW_T             ((UChar)0x0074)
     79 #define LOW_U             ((UChar)0x0075)
     80 #define LOW_V             ((UChar)0x0076)
     81 #define LOW_W             ((UChar)0x0077)
     82 #define LOW_Y             ((UChar)0x0079)
     83 #define LOW_Z             ((UChar)0x007A)
     84 #define DT_SHORT          -0x102
     85 #define DT_LONG           -0x103
     86 #define DT_NUMERIC         0x100
     87 #define DT_NARROW         -0x101
     88 #define DT_DELTA           0x10
     89 
     90 U_NAMESPACE_BEGIN
     91 
     92 const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
     93 const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
     94 
     95 typedef enum dtStrEnum {
     96     DT_BASESKELETON,
     97     DT_SKELETON,
     98     DT_PATTERN
     99 }dtStrEnum;
    100 
    101 typedef struct dtTypeElem {
    102     UChar                  patternChar;
    103     UDateTimePatternField  field;
    104     int16_t                type;
    105     int16_t                minLen;
    106     int16_t                weight;
    107 }dtTypeElem;
    108 
    109 class PtnSkeleton : public UMemory {
    110 public:
    111     int32_t type[UDATPG_FIELD_COUNT];
    112     UnicodeString original[UDATPG_FIELD_COUNT];
    113     UnicodeString baseOriginal[UDATPG_FIELD_COUNT];
    114 
    115     PtnSkeleton();
    116     PtnSkeleton(const PtnSkeleton& other);
    117     UBool equals(const PtnSkeleton& other);
    118     UnicodeString getSkeleton();
    119     UnicodeString getBaseSkeleton();
    120     virtual ~PtnSkeleton();
    121 };
    122 
    123 
    124 class PtnElem : public UMemory {
    125 public:
    126     UnicodeString basePattern;
    127     PtnSkeleton   *skeleton;
    128     UnicodeString pattern;
    129     UBool         skeletonWasSpecified; // if specified in availableFormats, not derived
    130     PtnElem       *next;
    131 
    132     PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
    133     virtual ~PtnElem();
    134 
    135 };
    136 
    137 class FormatParser : public UMemory {
    138 public:
    139     UnicodeString items[MAX_DT_TOKEN];
    140     int32_t  itemNumber;
    141 
    142     FormatParser();
    143     virtual ~FormatParser();
    144     void set(const UnicodeString& patternString);
    145     UBool isQuoteLiteral(const UnicodeString& s) const;
    146     void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
    147     int32_t getCanonicalIndex(const UnicodeString& s) { return getCanonicalIndex(s, TRUE); }
    148     int32_t getCanonicalIndex(const UnicodeString& s, UBool strict);
    149     UBool isPatternSeparator(UnicodeString& field);
    150     void setFilter(UErrorCode &status);
    151 
    152 private:
    153    typedef enum TokenStatus {
    154        START,
    155        ADD_TOKEN,
    156        SYNTAX_ERROR,
    157        DONE
    158    } ToeknStatus;
    159 
    160    TokenStatus status;
    161    virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
    162 };
    163 
    164 class DistanceInfo : public UMemory {
    165 public:
    166     int32_t missingFieldMask;
    167     int32_t extraFieldMask;
    168 
    169     DistanceInfo() {}
    170     virtual ~DistanceInfo();
    171     void clear() { missingFieldMask = extraFieldMask = 0; }
    172     void setTo(DistanceInfo& other);
    173     void addMissing(int32_t field) { missingFieldMask |= (1<<field); }
    174     void addExtra(int32_t field) { extraFieldMask |= (1<<field); }
    175 };
    176 
    177 class DateTimeMatcher: public UMemory {
    178 public:
    179     PtnSkeleton skeleton;
    180 
    181     void getBasePattern(UnicodeString &basePattern);
    182     UnicodeString getPattern();
    183     void set(const UnicodeString& pattern, FormatParser* fp);
    184     void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
    185     void copyFrom(const PtnSkeleton& skeleton);
    186     void copyFrom();
    187     PtnSkeleton* getSkeletonPtr();
    188     UBool equals(const DateTimeMatcher* other) const;
    189     int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo);
    190     DateTimeMatcher();
    191     DateTimeMatcher(const DateTimeMatcher& other);
    192     virtual ~DateTimeMatcher();
    193     int32_t getFieldMask();
    194 };
    195 
    196 class PatternMap : public UMemory {
    197 public:
    198     PtnElem *boot[MAX_PATTERN_ENTRIES];
    199     PatternMap();
    200     virtual  ~PatternMap();
    201     void  add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
    202     const UnicodeString* getPatternFromBasePattern(UnicodeString& basePattern, UBool& skeletonWasSpecified);
    203     const UnicodeString* getPatternFromSkeleton(PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = 0);
    204     void copyFrom(const PatternMap& other, UErrorCode& status);
    205     PtnElem* getHeader(UChar baseChar);
    206     UBool equals(const PatternMap& other);
    207 private:
    208     UBool isDupAllowed;
    209     PtnElem*  getDuplicateElem(const UnicodeString &basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
    210 }; // end  PatternMap
    211 
    212 class PatternMapIterator : public UMemory {
    213 public:
    214     PatternMapIterator();
    215     virtual ~PatternMapIterator();
    216     void set(PatternMap& patternMap);
    217     PtnSkeleton* getSkeleton();
    218     UBool hasNext();
    219     DateTimeMatcher& next();
    220 private:
    221     int32_t bootIndex;
    222     PtnElem *nodePtr;
    223     DateTimeMatcher *matcher;
    224     PatternMap *patternMap;
    225 };
    226 
    227 class DTSkeletonEnumeration : public StringEnumeration {
    228 public:
    229     DTSkeletonEnumeration(PatternMap &patternMap, dtStrEnum type, UErrorCode& status);
    230     virtual ~DTSkeletonEnumeration();
    231     static UClassID U_EXPORT2 getStaticClassID(void);
    232     virtual UClassID getDynamicClassID(void) const;
    233     virtual const UnicodeString* snext(UErrorCode& status);
    234     virtual void reset(UErrorCode& status);
    235     virtual int32_t count(UErrorCode& status) const;
    236 private:
    237     int32_t pos;
    238     UBool isCanonicalItem(const UnicodeString& item);
    239     UVector *fSkeletons;
    240 };
    241 
    242 class DTRedundantEnumeration : public StringEnumeration {
    243 public:
    244     DTRedundantEnumeration();
    245     virtual ~DTRedundantEnumeration();
    246     static UClassID U_EXPORT2 getStaticClassID(void);
    247     virtual UClassID getDynamicClassID(void) const;
    248     virtual const UnicodeString* snext(UErrorCode& status);
    249     virtual void reset(UErrorCode& status);
    250     virtual int32_t count(UErrorCode& status) const;
    251     void add(const UnicodeString &pattern, UErrorCode& status);
    252 private:
    253     int32_t pos;
    254     UBool isCanonicalItem(const UnicodeString& item);
    255     UVector *fPatterns;
    256 };
    257 
    258 U_NAMESPACE_END
    259 
    260 #endif
    261