Updated Branches: refs/heads/1994-merge-rcouch 5618e610c -> c8753b582
http://git-wip-us.apache.org/repos/asf/couchdb/blob/e62a4fc1/apps/couch_collate/platform/osx/icu/unicode/vtzone.h ---------------------------------------------------------------------- diff --git a/apps/couch_collate/platform/osx/icu/unicode/vtzone.h b/apps/couch_collate/platform/osx/icu/unicode/vtzone.h new file mode 100644 index 0000000..9463f35 --- /dev/null +++ b/apps/couch_collate/platform/osx/icu/unicode/vtzone.h @@ -0,0 +1,443 @@ +/* +******************************************************************************* +* Copyright (C) 2007-2008, International Business Machines Corporation and * +* others. All Rights Reserved. * +******************************************************************************* +*/ +#ifndef VTZONE_H +#define VTZONE_H + +#include "unicode/utypes.h" + +/** + * \file + * \brief C++ API: RFC2445 VTIMEZONE support + */ + +#if !UCONFIG_NO_FORMATTING + +#include "unicode/basictz.h" + +U_NAMESPACE_BEGIN + +class VTZWriter; +class VTZReader; +class UVector; + +/** + * <code>VTimeZone</code> is a class implementing RFC2445 VTIMEZONE. You can create a + * <code>VTimeZone</code> instance from a time zone ID supported by <code>TimeZone</code>. + * With the <code>VTimeZone</code> instance created from the ID, you can write out the rule + * in RFC2445 VTIMEZONE format. Also, you can create a <code>VTimeZone</code> instance + * from RFC2445 VTIMEZONE data stream, which allows you to calculate time + * zone offset by the rules defined by the data.<br><br> + * Note: The consumer of this class reading or writing VTIMEZONE data is responsible to + * decode or encode Non-ASCII text. Methods reading/writing VTIMEZONE data in this class + * do nothing with MIME encoding. + * @stable ICU 4.0 + */ +class U_I18N_API VTimeZone : public BasicTimeZone { +public: + /** + * Copy constructor. + * @param source The <code>VTimeZone</code> object to be copied. + * @stable ICU 4.0 + */ + VTimeZone(const VTimeZone& source); + + /** + * Destructor. + * @stable ICU 4.0 + */ + virtual ~VTimeZone(); + + /** + * Assignment operator. + * @param right The object to be copied. + * @stable ICU 4.0 + */ + VTimeZone& operator=(const VTimeZone& right); + + /** + * Return true if the given <code>TimeZone</code> objects are + * semantically equal. Objects of different subclasses are considered unequal. + * @param that The object to be compared with. + * @return true if the given <code>TimeZone</code> objects are + *semantically equal. + * @stable ICU 4.0 + */ + virtual UBool operator==(const TimeZone& that) const; + + /** + * Return true if the given <code>TimeZone</code> objects are + * semantically unequal. Objects of different subclasses are considered unequal. + * @param that The object to be compared with. + * @return true if the given <code>TimeZone</code> objects are + * semantically unequal. + * @stable ICU 4.0 + */ + virtual UBool operator!=(const TimeZone& that) const; + + /** + * Create a <code>VTimeZone</code> instance by the time zone ID. + * @param ID The time zone ID, such as America/New_York + * @return A <code>VTimeZone</code> object initialized by the time zone ID, + * or NULL when the ID is unknown. + * @stable ICU 4.0 + */ + static VTimeZone* createVTimeZoneByID(const UnicodeString& ID); + + /** + * Create a <code>VTimeZone</code> instance by RFC2445 VTIMEZONE data + * + * @param vtzdata The string including VTIMEZONE data block + * @param status Output param to filled in with a success or an error. + * @return A <code>VTimeZone</code> initialized by the VTIMEZONE data or + * NULL if failed to load the rule from the VTIMEZONE data. + * @stable ICU 4.0 + */ + static VTimeZone* createVTimeZone(const UnicodeString& vtzdata, UErrorCode& status); + + /** + * Gets the RFC2445 TZURL property value. When a <code>VTimeZone</code> instance was + * created from VTIMEZONE data, the initial value is set by the TZURL property value + * in the data. Otherwise, the initial value is not set. + * @param url Receives the RFC2445 TZURL property value. + * @return TRUE if TZURL attribute is available and value is set. + * @stable ICU 4.0 + */ + UBool getTZURL(UnicodeString& url) const; + + /** + * Sets the RFC2445 TZURL property value. + * @param url The TZURL property value. + * @stable ICU 4.0 + */ + void setTZURL(const UnicodeString& url); + + /** + * Gets the RFC2445 LAST-MODIFIED property value. When a <code>VTimeZone</code> instance + * was created from VTIMEZONE data, the initial value is set by the LAST-MODIFIED property + * value in the data. Otherwise, the initial value is not set. + * @param lastModified Receives the last modified date. + * @return TRUE if lastModified attribute is available and value is set. + * @stable ICU 4.0 + */ + UBool getLastModified(UDate& lastModified) const; + + /** + * Sets the RFC2445 LAST-MODIFIED property value. + * @param lastModified The LAST-MODIFIED date. + * @stable ICU 4.0 + */ + void setLastModified(UDate lastModified); + + /** + * Writes RFC2445 VTIMEZONE data for this time zone + * @param result Output param to filled in with the VTIMEZONE data. + * @param status Output param to filled in with a success or an error. + * @stable ICU 4.0 + */ + void write(UnicodeString& result, UErrorCode& status) const; + + /** + * Writes RFC2445 VTIMEZONE data for this time zone applicalbe + * for dates after the specified start time. + * @param start The start date. + * @param result Output param to filled in with the VTIMEZONE data. + * @param status Output param to filled in with a success or an error. + * @stable ICU 4.0 + */ + void write(UDate start, UnicodeString& result, UErrorCode& status) /*const*/; + + /** + * Writes RFC2445 VTIMEZONE data applicalbe for the specified date. + * Some common iCalendar implementations can only handle a single time + * zone property or a pair of standard and daylight time properties using + * BYDAY rule with day of week (such as BYDAY=1SUN). This method produce + * the VTIMEZONE data which can be handled these implementations. The rules + * produced by this method can be used only for calculating time zone offset + * around the specified date. + * @param time The date used for rule extraction. + * @param result Output param to filled in with the VTIMEZONE data. + * @param status Output param to filled in with a success or an error. + * @stable ICU 4.0 + */ + void writeSimple(UDate time, UnicodeString& result, UErrorCode& status) /*const*/; + + /** + * Clones TimeZone objects polymorphically. Clients are responsible for deleting + * the TimeZone object cloned. + * @return A new copy of this TimeZone object. + * @stable ICU 4.0 + */ + virtual TimeZone* clone(void) const; + + /** + * Returns the TimeZone's adjusted GMT offset (i.e., the number of milliseconds to add + * to GMT to get local time in this time zone, taking daylight savings time into + * account) as of a particular reference date. The reference date is used to determine + * whether daylight savings time is in effect and needs to be figured into the offset + * that is returned (in other words, what is the adjusted GMT offset in this time zone + * at this particular date and time?). For the time zones produced by createTimeZone(), + * the reference data is specified according to the Gregorian calendar, and the date + * and time fields are local standard time. + * + * <p>Note: Don't call this method. Instead, call the getOffset(UDate...) overload, + * which returns both the raw and the DST offset for a given time. This method + * is retained only for backward compatibility. + * + * @param era The reference date's era + * @param year The reference date's year + * @param month The reference date's month (0-based; 0 is January) + * @param day The reference date's day-in-month (1-based) + * @param dayOfWeek The reference date's day-of-week (1-based; 1 is Sunday) + * @param millis The reference date's milliseconds in day, local standard time + * @param status Output param to filled in with a success or an error. + * @return The offset in milliseconds to add to GMT to get local time. + * @stable ICU 4.0 + */ + virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day, + uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const; + + /** + * Gets the time zone offset, for current date, modified in case of + * daylight savings. This is the offset to add *to* UTC to get local time. + * + * <p>Note: Don't call this method. Instead, call the getOffset(UDate...) overload, + * which returns both the raw and the DST offset for a given time. This method + * is retained only for backward compatibility. + * + * @param era The reference date's era + * @param year The reference date's year + * @param month The reference date's month (0-based; 0 is January) + * @param day The reference date's day-in-month (1-based) + * @param dayOfWeek The reference date's day-of-week (1-based; 1 is Sunday) + * @param millis The reference date's milliseconds in day, local standard time + * @param monthLength The length of the given month in days. + * @param status Output param to filled in with a success or an error. + * @return The offset in milliseconds to add to GMT to get local time. + * @stable ICU 4.0 + */ + virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day, + uint8_t dayOfWeek, int32_t millis, + int32_t monthLength, UErrorCode& status) const; + + /** + * Returns the time zone raw and GMT offset for the given moment + * in time. Upon return, local-millis = GMT-millis + rawOffset + + * dstOffset. All computations are performed in the proleptic + * Gregorian calendar. The default implementation in the TimeZone + * class delegates to the 8-argument getOffset(). + * + * @param date moment in time for which to return offsets, in + * units of milliseconds from January 1, 1970 0:00 GMT, either GMT + * time or local wall time, depending on `local'. + * @param local if true, `date' is local wall time; otherwise it + * is in GMT time. + * @param rawOffset output parameter to receive the raw offset, that + * is, the offset not including DST adjustments + * @param dstOffset output parameter to receive the DST offset, + * that is, the offset to be added to `rawOffset' to obtain the + * total offset between local and GMT time. If DST is not in + * effect, this value is zero; otherwise it is a positive value, + * typically one hour. + * @param ec input-output error code + * @stable ICU 4.0 + */ + virtual void getOffset(UDate date, UBool local, int32_t& rawOffset, + int32_t& dstOffset, UErrorCode& ec) const; + + /** + * Sets the TimeZone's raw GMT offset (i.e., the number of milliseconds to add + * to GMT to get local time, before taking daylight savings time into account). + * + * @param offsetMillis The new raw GMT offset for this time zone. + * @stable ICU 4.0 + */ + virtual void setRawOffset(int32_t offsetMillis); + + /** + * Returns the TimeZone's raw GMT offset (i.e., the number of milliseconds to add + * to GMT to get local time, before taking daylight savings time into account). + * + * @return The TimeZone's raw GMT offset. + * @stable ICU 4.0 + */ + virtual int32_t getRawOffset(void) const; + + /** + * Queries if this time zone uses daylight savings time. + * @return true if this time zone uses daylight savings time, + * false, otherwise. + * @stable ICU 4.0 + */ + virtual UBool useDaylightTime(void) const; + + /** + * Queries if the given date is in daylight savings time in + * this time zone. + * This method is wasteful since it creates a new GregorianCalendar and + * deletes it each time it is called. This is a deprecated method + * and provided only for Java compatibility. + * + * @param date the given UDate. + * @param status Output param filled in with success/error code. + * @return true if the given date is in daylight savings time, + * false, otherwise. + * @deprecated ICU 2.4. Use Calendar::inDaylightTime() instead. + */ + virtual UBool inDaylightTime(UDate date, UErrorCode& status) const; + + /** + * Returns true if this zone has the same rule and offset as another zone. + * That is, if this zone differs only in ID, if at all. + * @param other the <code>TimeZone</code> object to be compared with + * @return true if the given zone is the same as this one, + * with the possible exception of the ID + * @stable ICU 4.0 + */ + virtual UBool hasSameRules(const TimeZone& other) const; + + /** + * Gets the first time zone transition after the base time. + * @param base The base time. + * @param inclusive Whether the base time is inclusive or not. + * @param result Receives the first transition after the base time. + * @return TRUE if the transition is found. + * @stable ICU 4.0 + */ + virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) /*const*/; + + /** + * Gets the most recent time zone transition before the base time. + * @param base The base time. + * @param inclusive Whether the base time is inclusive or not. + * @param result Receives the most recent transition before the base time. + * @return TRUE if the transition is found. + * @stable ICU 4.0 + */ + virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) /*const*/; + + /** + * Returns the number of <code>TimeZoneRule</code>s which represents time transitions, + * for this time zone, that is, all <code>TimeZoneRule</code>s for this time zone except + * <code>InitialTimeZoneRule</code>. The return value range is 0 or any positive value. + * @param status Receives error status code. + * @return The number of <code>TimeZoneRule</code>s representing time transitions. + * @stable ICU 4.0 + */ + virtual int32_t countTransitionRules(UErrorCode& status) /*const*/; + + /** + * Gets the <code>InitialTimeZoneRule</code> and the set of <code>TimeZoneRule</code> + * which represent time transitions for this time zone. On successful return, + * the argument initial points to non-NULL <code>InitialTimeZoneRule</code> and + * the array trsrules is filled with 0 or multiple <code>TimeZoneRule</code> + * instances up to the size specified by trscount. The results are referencing the + * rule instance held by this time zone instance. Therefore, after this time zone + * is destructed, they are no longer available. + * @param initial Receives the initial timezone rule + * @param trsrules Receives the timezone transition rules + * @param trscount On input, specify the size of the array 'transitions' receiving + * the timezone transition rules. On output, actual number of + * rules filled in the array will be set. + * @param status Receives error status code. + * @stable ICU 4.0 + */ + virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial, + const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) /*const*/; + +private: + enum { DEFAULT_VTIMEZONE_LINES = 100 }; + + /** + * Default constructor. + */ + VTimeZone(); + static VTimeZone* createVTimeZone(VTZReader* reader); + void write(VTZWriter& writer, UErrorCode& status) const; + void write(UDate start, VTZWriter& writer, UErrorCode& status) /*const*/; + void writeSimple(UDate time, VTZWriter& writer, UErrorCode& status) /*const*/; + void load(VTZReader& reader, UErrorCode& status); + void parse(UErrorCode& status); + + void writeZone(VTZWriter& w, BasicTimeZone& basictz, UVector* customProps, + UErrorCode& status) const; + + void writeHeaders(VTZWriter& w, UErrorCode& status) const; + void writeFooter(VTZWriter& writer, UErrorCode& status) const; + + void writeZonePropsByTime(VTZWriter& writer, UBool isDst, const UnicodeString& tzname, + int32_t fromOffset, int32_t toOffset, UDate time, UBool withRDATE, + UErrorCode& status) const; + void writeZonePropsByDOM(VTZWriter& writer, UBool isDst, const UnicodeString& tzname, + int32_t fromOffset, int32_t toOffset, + int32_t month, int32_t dayOfMonth, UDate startTime, UDate untilTime, + UErrorCode& status) const; + void writeZonePropsByDOW(VTZWriter& writer, UBool isDst, const UnicodeString& tzname, + int32_t fromOffset, int32_t toOffset, + int32_t month, int32_t weekInMonth, int32_t dayOfWeek, + UDate startTime, UDate untilTime, UErrorCode& status) const; + void writeZonePropsByDOW_GEQ_DOM(VTZWriter& writer, UBool isDst, const UnicodeString& tzname, + int32_t fromOffset, int32_t toOffset, + int32_t month, int32_t dayOfMonth, int32_t dayOfWeek, + UDate startTime, UDate untilTime, UErrorCode& status) const; + void writeZonePropsByDOW_GEQ_DOM_sub(VTZWriter& writer, int32_t month, int32_t dayOfMonth, + int32_t dayOfWeek, int32_t numDays, + UDate untilTime, int32_t fromOffset, UErrorCode& status) const; + void writeZonePropsByDOW_LEQ_DOM(VTZWriter& writer, UBool isDst, const UnicodeString& tzname, + int32_t fromOffset, int32_t toOffset, + int32_t month, int32_t dayOfMonth, int32_t dayOfWeek, + UDate startTime, UDate untilTime, UErrorCode& status) const; + void writeFinalRule(VTZWriter& writer, UBool isDst, const AnnualTimeZoneRule* rule, + int32_t fromRawOffset, int32_t fromDSTSavings, + UDate startTime, UErrorCode& status) const; + + void beginZoneProps(VTZWriter& writer, UBool isDst, const UnicodeString& tzname, + int32_t fromOffset, int32_t toOffset, UDate startTime, UErrorCode& status) const; + void endZoneProps(VTZWriter& writer, UBool isDst, UErrorCode& status) const; + void beginRRULE(VTZWriter& writer, int32_t month, UErrorCode& status) const; + void appendUNTIL(VTZWriter& writer, const UnicodeString& until, UErrorCode& status) const; + + BasicTimeZone *tz; + UVector *vtzlines; + UnicodeString tzurl; + UDate lastmod; + UnicodeString olsonzid; + UnicodeString icutzver; + +public: + /** + * Return the class ID for this class. This is useful only for comparing to + * a return value from getDynamicClassID(). For example: + * <pre> + * . Base* polymorphic_pointer = createPolymorphicObject(); + * . if (polymorphic_pointer->getDynamicClassID() == + * . erived::getStaticClassID()) ... + * </pre> + * @return The class ID for all objects of this class. + * @stable ICU 4.0 + */ + static UClassID U_EXPORT2 getStaticClassID(void); + + /** + * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This + * method is to implement a simple version of RTTI, since not all C++ + * compilers support genuine RTTI. Polymorphic operator==() and clone() + * methods call this method. + * + * @return The class ID for this object. All objects of a + * given class have the same class ID. Objects of + * other classes have different class IDs. + * @stable ICU 4.0 + */ + virtual UClassID getDynamicClassID(void) const; +}; + +U_NAMESPACE_END + +#endif /* #if !UCONFIG_NO_FORMATTING */ + +#endif // VTZONE_H +//eof
