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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2007-2016, International Business Machines Corporation and
* others. All Rights Reserved.
*******************************************************************************
*
* File DTPTNGEN.H
*
*******************************************************************************
*/
#ifndef __DTPTNGEN_IMPL_H__
#define __DTPTNGEN_IMPL_H__
#include "unicode/udatpg.h"
#include "unicode/strenum.h"
#include "unicode/unistr.h"
#include "uvector.h"
// TODO(claireho): Split off Builder class.
// TODO(claireho): If splitting off Builder class: As subclass or independent?
#define MAX_PATTERN_ENTRIES 52
#define MAX_CLDR_FIELD_LEN 60
#define MAX_DT_TOKEN 50
#define MAX_RESOURCE_FIELD 12
#define MAX_AVAILABLE_FORMATS 12
#define NONE 0
#define EXTRA_FIELD 0x10000
#define MISSING_FIELD 0x1000
#define MAX_STRING_ENUMERATION 200
#define SINGLE_QUOTE ((char16_t)0x0027)
#define FORWARDSLASH ((char16_t)0x002F)
#define BACKSLASH ((char16_t)0x005C)
#define SPACE ((char16_t)0x0020)
#define QUOTATION_MARK ((char16_t)0x0022)
#define ASTERISK ((char16_t)0x002A)
#define PLUSSITN ((char16_t)0x002B)
#define COMMA ((char16_t)0x002C)
#define HYPHEN ((char16_t)0x002D)
#define DOT ((char16_t)0x002E)
#define COLON ((char16_t)0x003A)
#define CAP_A ((char16_t)0x0041)
#define CAP_B ((char16_t)0x0042)
#define CAP_C ((char16_t)0x0043)
#define CAP_D ((char16_t)0x0044)
#define CAP_E ((char16_t)0x0045)
#define CAP_F ((char16_t)0x0046)
#define CAP_G ((char16_t)0x0047)
#define CAP_H ((char16_t)0x0048)
#define CAP_J ((char16_t)0x004A)
#define CAP_K ((char16_t)0x004B)
#define CAP_L ((char16_t)0x004C)
#define CAP_M ((char16_t)0x004D)
#define CAP_O ((char16_t)0x004F)
#define CAP_Q ((char16_t)0x0051)
#define CAP_S ((char16_t)0x0053)
#define CAP_T ((char16_t)0x0054)
#define CAP_U ((char16_t)0x0055)
#define CAP_V ((char16_t)0x0056)
#define CAP_W ((char16_t)0x0057)
#define CAP_X ((char16_t)0x0058)
#define CAP_Y ((char16_t)0x0059)
#define CAP_Z ((char16_t)0x005A)
#define LOWLINE ((char16_t)0x005F)
#define LOW_A ((char16_t)0x0061)
#define LOW_B ((char16_t)0x0062)
#define LOW_C ((char16_t)0x0063)
#define LOW_D ((char16_t)0x0064)
#define LOW_E ((char16_t)0x0065)
#define LOW_F ((char16_t)0x0066)
#define LOW_G ((char16_t)0x0067)
#define LOW_H ((char16_t)0x0068)
#define LOW_I ((char16_t)0x0069)
#define LOW_J ((char16_t)0x006A)
#define LOW_K ((char16_t)0x006B)
#define LOW_L ((char16_t)0x006C)
#define LOW_M ((char16_t)0x006D)
#define LOW_N ((char16_t)0x006E)
#define LOW_O ((char16_t)0x006F)
#define LOW_P ((char16_t)0x0070)
#define LOW_Q ((char16_t)0x0071)
#define LOW_R ((char16_t)0x0072)
#define LOW_S ((char16_t)0x0073)
#define LOW_T ((char16_t)0x0074)
#define LOW_U ((char16_t)0x0075)
#define LOW_V ((char16_t)0x0076)
#define LOW_W ((char16_t)0x0077)
#define LOW_X ((char16_t)0x0078)
#define LOW_Y ((char16_t)0x0079)
#define LOW_Z ((char16_t)0x007A)
#define DT_NARROW -0x101
#define DT_SHORTER -0x102
#define DT_SHORT -0x103
#define DT_LONG -0x104
#define DT_NUMERIC 0x100
#define DT_DELTA 0x10
U_NAMESPACE_BEGIN
const int32_t UDATPG_FRACTIONAL_MASK = 1<<UDATPG_FRACTIONAL_SECOND_FIELD;
const int32_t UDATPG_SECOND_AND_FRACTIONAL_MASK = (1<<UDATPG_SECOND_FIELD) | (1<<UDATPG_FRACTIONAL_SECOND_FIELD);
typedef enum dtStrEnum {
DT_BASESKELETON,
DT_SKELETON,
DT_PATTERN
}dtStrEnum;
typedef struct dtTypeElem {
char16_t patternChar;
UDateTimePatternField field;
int16_t type;
int16_t minLen;
int16_t weight;
} dtTypeElem;
// A compact storage mechanism for skeleton field strings. Several dozen of these will be created
// for a typical DateTimePatternGenerator instance.
class SkeletonFields : public UMemory {
public:
SkeletonFields();
void clear();
void copyFrom(const SkeletonFields& other);
void clearField(int32_t field);
char16_t getFieldChar(int32_t field) const;
int32_t getFieldLength(int32_t field) const;
void populate(int32_t field, const UnicodeString& value);
void populate(int32_t field, char16_t repeatChar, int32_t repeatCount);
UBool isFieldEmpty(int32_t field) const;
UnicodeString& appendTo(UnicodeString& string) const;
UnicodeString& appendFieldTo(int32_t field, UnicodeString& string) const;
char16_t getFirstChar() const;
inline bool operator==(const SkeletonFields& other) const;
inline bool operator!=(const SkeletonFields& other) const;
private:
int8_t chars[UDATPG_FIELD_COUNT];
int8_t lengths[UDATPG_FIELD_COUNT];
};
inline bool SkeletonFields::operator==(const SkeletonFields& other) const {
return (uprv_memcmp(chars, other.chars, sizeof(chars)) == 0
&& uprv_memcmp(lengths, other.lengths, sizeof(lengths)) == 0);
}
inline bool SkeletonFields::operator!=(const SkeletonFields& other) const {
return (! operator==(other));
}
class PtnSkeleton : public UMemory {
public:
int32_t type[UDATPG_FIELD_COUNT];
SkeletonFields original;
SkeletonFields baseOriginal;
UBool addedDefaultDayPeriod;
PtnSkeleton();
PtnSkeleton(const PtnSkeleton& other);
void copyFrom(const PtnSkeleton& other);
void clear();
UBool equals(const PtnSkeleton& other) const;
UnicodeString getSkeleton() const;
UnicodeString getBaseSkeleton() const;
char16_t getFirstChar() const;
// TODO: Why is this virtual, as well as the other destructors in this file? We don't want
// vtables when we don't use class objects polymorphically.
virtual ~PtnSkeleton();
};
class PtnElem : public UMemory {
public:
UnicodeString basePattern;
LocalPointer<PtnSkeleton> skeleton;
UnicodeString pattern;
UBool skeletonWasSpecified; // if specified in availableFormats, not derived
LocalPointer<PtnElem> next;
PtnElem(const UnicodeString &basePattern, const UnicodeString &pattern);
virtual ~PtnElem();
};
class FormatParser : public UMemory {
public:
UnicodeString items[MAX_DT_TOKEN];
int32_t itemNumber;
FormatParser();
virtual ~FormatParser();
void set(const UnicodeString& patternString);
void getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex);
UBool isPatternSeparator(const UnicodeString& field) const;
static UBool isQuoteLiteral(const UnicodeString& s);
static int32_t getCanonicalIndex(const UnicodeString& s) { return getCanonicalIndex(s, true); }
static int32_t getCanonicalIndex(const UnicodeString& s, UBool strict);
private:
typedef enum TokenStatus {
START,
ADD_TOKEN,
SYNTAX_ERROR,
DONE
} TokenStatus;
TokenStatus status;
virtual TokenStatus setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len);
};
class DistanceInfo : public UMemory {
public:
int32_t missingFieldMask;
int32_t extraFieldMask;
DistanceInfo() {}
virtual ~DistanceInfo();
void clear() { missingFieldMask = extraFieldMask = 0; }
void setTo(const DistanceInfo& other);
void addMissing(int32_t field) { missingFieldMask |= (1<<field); }
void addExtra(int32_t field) { extraFieldMask |= (1<<field); }
};
class DateTimeMatcher: public UMemory {
public:
PtnSkeleton skeleton;
void getBasePattern(UnicodeString& basePattern);
UnicodeString getPattern();
void set(const UnicodeString& pattern, FormatParser* fp);
void set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeleton);
void copyFrom(const PtnSkeleton& skeleton);
void copyFrom();
PtnSkeleton* getSkeletonPtr();
UBool equals(const DateTimeMatcher* other) const;
int32_t getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo) const;
DateTimeMatcher();
DateTimeMatcher(const DateTimeMatcher& other);
DateTimeMatcher& operator=(const DateTimeMatcher& other);
virtual ~DateTimeMatcher();
int32_t getFieldMask() const;
};
class PatternMap : public UMemory {
public:
PtnElem *boot[MAX_PATTERN_ENTRIES];
PatternMap();
virtual ~PatternMap();
void add(const UnicodeString& basePattern, const PtnSkeleton& skeleton, const UnicodeString& value, UBool skeletonWasSpecified, UErrorCode& status);
const UnicodeString* getPatternFromBasePattern(const UnicodeString& basePattern, UBool& skeletonWasSpecified) const;
const UnicodeString* getPatternFromSkeleton(const PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr = nullptr) const;
void copyFrom(const PatternMap& other, UErrorCode& status);
PtnElem* getHeader(char16_t baseChar) const;
UBool equals(const PatternMap& other) const;
private:
UBool isDupAllowed;
PtnElem* getDuplicateElem(const UnicodeString& basePattern, const PtnSkeleton& skeleton, PtnElem *baseElem);
}; // end PatternMap
class PatternMapIterator : public UMemory {
public:
PatternMapIterator(UErrorCode &status);
virtual ~PatternMapIterator();
void set(PatternMap& patternMap);
PtnSkeleton* getSkeleton() const;
UBool hasNext() const;
DateTimeMatcher& next();
private:
int32_t bootIndex;
PtnElem *nodePtr;
LocalPointer<DateTimeMatcher> matcher;
PatternMap *patternMap;
};
class DTSkeletonEnumeration : public StringEnumeration {
public:
DTSkeletonEnumeration(PatternMap& patternMap, dtStrEnum type, UErrorCode& status);
virtual ~DTSkeletonEnumeration();
static UClassID U_EXPORT2 getStaticClassID();
virtual UClassID getDynamicClassID() const override;
virtual const UnicodeString* snext(UErrorCode& status) override;
virtual void reset(UErrorCode& status) override;
virtual int32_t count(UErrorCode& status) const override;
private:
int32_t pos;
UBool isCanonicalItem(const UnicodeString& item);
LocalPointer<UVector> fSkeletons;
};
class DTRedundantEnumeration : public StringEnumeration {
public:
DTRedundantEnumeration();
virtual ~DTRedundantEnumeration();
static UClassID U_EXPORT2 getStaticClassID();
virtual UClassID getDynamicClassID() const override;
virtual const UnicodeString* snext(UErrorCode& status) override;
virtual void reset(UErrorCode& status) override;
virtual int32_t count(UErrorCode& status) const override;
void add(const UnicodeString &pattern, UErrorCode& status);
private:
int32_t pos;
UBool isCanonicalItem(const UnicodeString& item) const;
LocalPointer<UVector> fPatterns;
};
U_NAMESPACE_END
#endif
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