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10/28/2024 06:50:42 AM
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alphaindex.h
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appendable.h
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basictz.h
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brkiter.h
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bytestream.h
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bytestrie.h
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bytestriebuilder.h
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calendar.h
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caniter.h
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casemap.h
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char16ptr.h
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chariter.h
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choicfmt.h
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coleitr.h
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coll.h
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compactdecimalformat.h
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curramt.h
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currpinf.h
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currunit.h
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datefmt.h
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dbbi.h
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dcfmtsym.h
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decimfmt.h
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docmain.h
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dtfmtsym.h
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dtintrv.h
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dtitvfmt.h
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dtitvinf.h
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dtptngen.h
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dtrule.h
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edits.h
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enumset.h
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errorcode.h
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fieldpos.h
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filteredbrk.h
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fmtable.h
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format.h
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fpositer.h
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gender.h
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gregocal.h
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icudataver.h
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icuplug.h
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idna.h
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listformatter.h
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localpointer.h
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locdspnm.h
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locid.h
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measfmt.h
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measunit.h
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measure.h
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messagepattern.h
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msgfmt.h
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normalizer2.h
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normlzr.h
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nounit.h
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numberformatter.h
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numfmt.h
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numsys.h
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parseerr.h
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parsepos.h
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platform.h
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plurfmt.h
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plurrule.h
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ptypes.h
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putil.h
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rbbi.h
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rbnf.h
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rbtz.h
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regex.h
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region.h
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reldatefmt.h
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rep.h
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resbund.h
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schriter.h
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scientificnumberformatter.h
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search.h
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selfmt.h
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simpleformatter.h
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simpletz.h
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smpdtfmt.h
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sortkey.h
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std_string.h
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strenum.h
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stringoptions.h
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stringpiece.h
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stringtriebuilder.h
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stsearch.h
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symtable.h
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tblcoll.h
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timezone.h
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tmunit.h
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tmutamt.h
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tmutfmt.h
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translit.h
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tzfmt.h
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tznames.h
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tzrule.h
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tztrans.h
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ubidi.h
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ubiditransform.h
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ubrk.h
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ucal.h
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ucasemap.h
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ucat.h
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uchar.h
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ucharstrie.h
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ucharstriebuilder.h
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uchriter.h
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uclean.h
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ucnv.h
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ucnv_cb.h
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ucnv_err.h
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ucnvsel.h
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ucol.h
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ucoleitr.h
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uconfig.h
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ucsdet.h
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ucurr.h
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udat.h
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udata.h
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udateintervalformat.h
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udatpg.h
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udisplaycontext.h
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uenum.h
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ufieldpositer.h
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uformattable.h
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ugender.h
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uidna.h
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uiter.h
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uldnames.h
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ulistformatter.h
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uloc.h
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ulocdata.h
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umachine.h
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umisc.h
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umsg.h
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unifilt.h
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unifunct.h
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unimatch.h
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unirepl.h
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uniset.h
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unistr.h
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unorm.h
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unorm2.h
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unum.h
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unumsys.h
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uobject.h
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upluralrules.h
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uregex.h
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uregion.h
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ureldatefmt.h
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urename.h
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urep.h
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ures.h
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uscript.h
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usearch.h
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uset.h
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ustringtrie.h
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utext.h
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utf.h
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utf16.h
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utf32.h
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utf8.h
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utf_old.h
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utmscale.h
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utrans.h
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uvernum.h
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uversion.h
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Editing: dtptngen.h
Close
// © 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_H__ #define __DTPTNGEN_H__ #include "unicode/datefmt.h" #include "unicode/locid.h" #include "unicode/udat.h" #include "unicode/udatpg.h" #include "unicode/unistr.h" U_NAMESPACE_BEGIN /** * \file * \brief C++ API: Date/Time Pattern Generator */ class CharString; class Hashtable; class FormatParser; class DateTimeMatcher; class DistanceInfo; class PatternMap; class PtnSkeleton; class SharedDateTimePatternGenerator; /** * This class provides flexible generation of date format patterns, like "yy-MM-dd". * The user can build up the generator by adding successive patterns. Once that * is done, a query can be made using a "skeleton", which is a pattern which just * includes the desired fields and lengths. The generator will return the "best fit" * pattern corresponding to that skeleton. * <p>The main method people will use is getBestPattern(String skeleton), * since normally this class is pre-built with data from a particular locale. * However, generators can be built directly from other data as well. * <p><i>Issue: may be useful to also have a function that returns the list of * fields in a pattern, in order, since we have that internally. * That would be useful for getting the UI order of field elements.</i> * @stable ICU 3.8 **/ class U_I18N_API DateTimePatternGenerator : public UObject { public: /** * Construct a flexible generator according to default locale. * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @stable ICU 3.8 */ static DateTimePatternGenerator* U_EXPORT2 createInstance(UErrorCode& status); /** * Construct a flexible generator according to data for a given locale. * @param uLocale * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @stable ICU 3.8 */ static DateTimePatternGenerator* U_EXPORT2 createInstance(const Locale& uLocale, UErrorCode& status); #ifndef U_HIDE_INTERNAL_API /** * For ICU use only * * @internal */ static DateTimePatternGenerator* U_EXPORT2 internalMakeInstance(const Locale& uLocale, UErrorCode& status); #endif /* U_HIDE_INTERNAL_API */ /** * Create an empty generator, to be constructed with addPattern(...) etc. * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @stable ICU 3.8 */ static DateTimePatternGenerator* U_EXPORT2 createEmptyInstance(UErrorCode& status); /** * Destructor. * @stable ICU 3.8 */ virtual ~DateTimePatternGenerator(); /** * Clone DateTimePatternGenerator object. Clients are responsible for * deleting the DateTimePatternGenerator object cloned. * @stable ICU 3.8 */ DateTimePatternGenerator* clone() const; /** * Return true if another object is semantically equal to this one. * * @param other the DateTimePatternGenerator object to be compared with. * @return true if other is semantically equal to this. * @stable ICU 3.8 */ UBool operator==(const DateTimePatternGenerator& other) const; /** * Return true if another object is semantically unequal to this one. * * @param other the DateTimePatternGenerator object to be compared with. * @return true if other is semantically unequal to this. * @stable ICU 3.8 */ UBool operator!=(const DateTimePatternGenerator& other) const; /** * Utility to return a unique skeleton from a given pattern. For example, * both "MMM-dd" and "dd/MMM" produce the skeleton "MMMdd". * * @param pattern Input pattern, such as "dd/MMM" * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return skeleton such as "MMMdd" * @stable ICU 56 */ static UnicodeString staticGetSkeleton(const UnicodeString& pattern, UErrorCode& status); /** * Utility to return a unique skeleton from a given pattern. For example, * both "MMM-dd" and "dd/MMM" produce the skeleton "MMMdd". * getSkeleton() works exactly like staticGetSkeleton(). * Use staticGetSkeleton() instead of getSkeleton(). * * @param pattern Input pattern, such as "dd/MMM" * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return skeleton such as "MMMdd" * @stable ICU 3.8 */ UnicodeString getSkeleton(const UnicodeString& pattern, UErrorCode& status); /* { The function is commented out because it is a stable API calling a draft API. After staticGetSkeleton becomes stable, staticGetSkeleton can be used and these comments and the definition of getSkeleton in dtptngen.cpp should be removed. return staticGetSkeleton(pattern, status); }*/ /** * Utility to return a unique base skeleton from a given pattern. This is * the same as the skeleton, except that differences in length are minimized * so as to only preserve the difference between string and numeric form. So * for example, both "MMM-dd" and "d/MMM" produce the skeleton "MMMd" * (notice the single d). * * @param pattern Input pattern, such as "dd/MMM" * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return base skeleton, such as "MMMd" * @stable ICU 56 */ static UnicodeString staticGetBaseSkeleton(const UnicodeString& pattern, UErrorCode& status); /** * Utility to return a unique base skeleton from a given pattern. This is * the same as the skeleton, except that differences in length are minimized * so as to only preserve the difference between string and numeric form. So * for example, both "MMM-dd" and "d/MMM" produce the skeleton "MMMd" * (notice the single d). * getBaseSkeleton() works exactly like staticGetBaseSkeleton(). * Use staticGetBaseSkeleton() instead of getBaseSkeleton(). * * @param pattern Input pattern, such as "dd/MMM" * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return base skeleton, such as "MMMd" * @stable ICU 3.8 */ UnicodeString getBaseSkeleton(const UnicodeString& pattern, UErrorCode& status); /* { The function is commented out because it is a stable API calling a draft API. After staticGetBaseSkeleton becomes stable, staticGetBaseSkeleton can be used and these comments and the definition of getBaseSkeleton in dtptngen.cpp should be removed. return staticGetBaseSkeleton(pattern, status); }*/ /** * Adds a pattern to the generator. If the pattern has the same skeleton as * an existing pattern, and the override parameter is set, then the previous * value is overriden. Otherwise, the previous value is retained. In either * case, the conflicting status is set and previous vale is stored in * conflicting pattern. * <p> * Note that single-field patterns (like "MMM") are automatically added, and * don't need to be added explicitly! * * @param pattern Input pattern, such as "dd/MMM" * @param override When existing values are to be overridden use true, * otherwise use false. * @param conflictingPattern Previous pattern with the same skeleton. * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return conflicting status. The value could be UDATPG_NO_CONFLICT, * UDATPG_BASE_CONFLICT or UDATPG_CONFLICT. * @stable ICU 3.8 * <p> * <h4>Sample code</h4> * \snippet samples/dtptngsample/dtptngsample.cpp getBestPatternExample1 * \snippet samples/dtptngsample/dtptngsample.cpp addPatternExample * <p> */ UDateTimePatternConflict addPattern(const UnicodeString& pattern, UBool override, UnicodeString& conflictingPattern, UErrorCode& status); /** * An AppendItem format is a pattern used to append a field if there is no * good match. For example, suppose that the input skeleton is "GyyyyMMMd", * and there is no matching pattern internally, but there is a pattern * matching "yyyyMMMd", say "d-MM-yyyy". Then that pattern is used, plus the * G. The way these two are conjoined is by using the AppendItemFormat for G * (era). So if that value is, say "{0}, {1}" then the final resulting * pattern is "d-MM-yyyy, G". * <p> * There are actually three available variables: {0} is the pattern so far, * {1} is the element we are adding, and {2} is the name of the element. * <p> * This reflects the way that the CLDR data is organized. * * @param field such as UDATPG_ERA_FIELD. * @param value pattern, such as "{0}, {1}" * @stable ICU 3.8 */ void setAppendItemFormat(UDateTimePatternField field, const UnicodeString& value); /** * Getter corresponding to setAppendItemFormat. Values below 0 or at or * above UDATPG_FIELD_COUNT are illegal arguments. * * @param field such as UDATPG_ERA_FIELD. * @return append pattern for field * @stable ICU 3.8 */ const UnicodeString& getAppendItemFormat(UDateTimePatternField field) const; /** * Sets the names of field, eg "era" in English for ERA. These are only * used if the corresponding AppendItemFormat is used, and if it contains a * {2} variable. * <p> * This reflects the way that the CLDR data is organized. * * @param field such as UDATPG_ERA_FIELD. * @param value name of the field * @stable ICU 3.8 */ void setAppendItemName(UDateTimePatternField field, const UnicodeString& value); /** * Getter corresponding to setAppendItemNames. Values below 0 or at or above * UDATPG_FIELD_COUNT are illegal arguments. * * @param field such as UDATPG_ERA_FIELD. * @return name for field * @stable ICU 3.8 */ const UnicodeString& getAppendItemName(UDateTimePatternField field) const; /** * The DateTimeFormat is a message format pattern used to compose date and * time patterns. The default pattern in the root locale is "{1} {0}", where * {1} will be replaced by the date pattern and {0} will be replaced by the * time pattern; however, other locales may specify patterns such as * "{1}, {0}" or "{1} 'at' {0}", etc. * <p> * This is used when the input skeleton contains both date and time fields, * but there is not a close match among the added patterns. For example, * suppose that this object was created by adding "dd-MMM" and "hh:mm", and * its datetimeFormat is the default "{1} {0}". Then if the input skeleton * is "MMMdhmm", there is not an exact match, so the input skeleton is * broken up into two components "MMMd" and "hmm". There are close matches * for those two skeletons, so the result is put together with this pattern, * resulting in "d-MMM h:mm". * * @param dateTimeFormat * message format pattern, here {1} will be replaced by the date * pattern and {0} will be replaced by the time pattern. * @stable ICU 3.8 */ void setDateTimeFormat(const UnicodeString& dateTimeFormat); /** * Getter corresponding to setDateTimeFormat. * @return DateTimeFormat. * @stable ICU 3.8 */ const UnicodeString& getDateTimeFormat() const; /** * Return the best pattern matching the input skeleton. It is guaranteed to * have all of the fields in the skeleton. * * @param skeleton * The skeleton is a pattern containing only the variable fields. * For example, "MMMdd" and "mmhh" are skeletons. * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return bestPattern * The best pattern found from the given skeleton. * @stable ICU 3.8 * <p> * <h4>Sample code</h4> * \snippet samples/dtptngsample/dtptngsample.cpp getBestPatternExample1 * \snippet samples/dtptngsample/dtptngsample.cpp getBestPatternExample * <p> */ UnicodeString getBestPattern(const UnicodeString& skeleton, UErrorCode& status); /** * Return the best pattern matching the input skeleton. It is guaranteed to * have all of the fields in the skeleton. * * @param skeleton * The skeleton is a pattern containing only the variable fields. * For example, "MMMdd" and "mmhh" are skeletons. * @param options * Options for forcing the length of specified fields in the * returned pattern to match those in the skeleton (when this * would not happen otherwise). For default behavior, use * UDATPG_MATCH_NO_OPTIONS. * @param status * Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return bestPattern * The best pattern found from the given skeleton. * @stable ICU 4.4 */ UnicodeString getBestPattern(const UnicodeString& skeleton, UDateTimePatternMatchOptions options, UErrorCode& status); /** * Adjusts the field types (width and subtype) of a pattern to match what is * in a skeleton. That is, if you supply a pattern like "d-M H:m", and a * skeleton of "MMMMddhhmm", then the input pattern is adjusted to be * "dd-MMMM hh:mm". This is used internally to get the best match for the * input skeleton, but can also be used externally. * * @param pattern Input pattern * @param skeleton * The skeleton is a pattern containing only the variable fields. * For example, "MMMdd" and "mmhh" are skeletons. * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return pattern adjusted to match the skeleton fields widths and subtypes. * @stable ICU 3.8 * <p> * <h4>Sample code</h4> * \snippet samples/dtptngsample/dtptngsample.cpp getBestPatternExample1 * \snippet samples/dtptngsample/dtptngsample.cpp replaceFieldTypesExample * <p> */ UnicodeString replaceFieldTypes(const UnicodeString& pattern, const UnicodeString& skeleton, UErrorCode& status); /** * Adjusts the field types (width and subtype) of a pattern to match what is * in a skeleton. That is, if you supply a pattern like "d-M H:m", and a * skeleton of "MMMMddhhmm", then the input pattern is adjusted to be * "dd-MMMM hh:mm". This is used internally to get the best match for the * input skeleton, but can also be used externally. * * @param pattern Input pattern * @param skeleton * The skeleton is a pattern containing only the variable fields. * For example, "MMMdd" and "mmhh" are skeletons. * @param options * Options controlling whether the length of specified fields in the * pattern are adjusted to match those in the skeleton (when this * would not happen otherwise). For default behavior, use * UDATPG_MATCH_NO_OPTIONS. * @param status * Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return pattern adjusted to match the skeleton fields widths and subtypes. * @stable ICU 4.4 */ UnicodeString replaceFieldTypes(const UnicodeString& pattern, const UnicodeString& skeleton, UDateTimePatternMatchOptions options, UErrorCode& status); /** * Return a list of all the skeletons (in canonical form) from this class. * * Call getPatternForSkeleton() to get the corresponding pattern. * * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return StringEnumeration with the skeletons. * The caller must delete the object. * @stable ICU 3.8 */ StringEnumeration* getSkeletons(UErrorCode& status) const; /** * Get the pattern corresponding to a given skeleton. * @param skeleton * @return pattern corresponding to a given skeleton. * @stable ICU 3.8 */ const UnicodeString& getPatternForSkeleton(const UnicodeString& skeleton) const; /** * Return a list of all the base skeletons (in canonical form) from this class. * * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return a StringEnumeration with the base skeletons. * The caller must delete the object. * @stable ICU 3.8 */ StringEnumeration* getBaseSkeletons(UErrorCode& status) const; #ifndef U_HIDE_INTERNAL_API /** * Return a list of redundant patterns are those which if removed, make no * difference in the resulting getBestPattern values. This method returns a * list of them, to help check the consistency of the patterns used to build * this generator. * * @param status Output param set to success/failure code on exit, * which must not indicate a failure before the function call. * @return a StringEnumeration with the redundant pattern. * The caller must delete the object. * @internal ICU 3.8 */ StringEnumeration* getRedundants(UErrorCode& status); #endif /* U_HIDE_INTERNAL_API */ /** * The decimal value is used in formatting fractions of seconds. If the * skeleton contains fractional seconds, then this is used with the * fractional seconds. For example, suppose that the input pattern is * "hhmmssSSSS", and the best matching pattern internally is "H:mm:ss", and * the decimal string is ",". Then the resulting pattern is modified to be * "H:mm:ss,SSSS" * * @param decimal * @stable ICU 3.8 */ void setDecimal(const UnicodeString& decimal); /** * Getter corresponding to setDecimal. * @return UnicodeString corresponding to the decimal point * @stable ICU 3.8 */ const UnicodeString& getDecimal() const; /** * ICU "poor man's RTTI", returns a UClassID for the actual class. * * @stable ICU 3.8 */ virtual UClassID getDynamicClassID() const; /** * ICU "poor man's RTTI", returns a UClassID for this class. * * @stable ICU 3.8 */ static UClassID U_EXPORT2 getStaticClassID(void); private: /** * Constructor. * @stable ICU 3.8 */ DateTimePatternGenerator(UErrorCode & status); /** * Constructor. * @stable ICU 3.8 */ DateTimePatternGenerator(const Locale& locale, UErrorCode & status); /** * Copy constructor. * @param other DateTimePatternGenerator to copy * @stable ICU 3.8 */ DateTimePatternGenerator(const DateTimePatternGenerator& other); /** * Default assignment operator. * @param other DateTimePatternGenerator to copy * @stable ICU 3.8 */ DateTimePatternGenerator& operator=(const DateTimePatternGenerator& other); Locale pLocale; // pattern locale FormatParser *fp; DateTimeMatcher* dtMatcher; DistanceInfo *distanceInfo; PatternMap *patternMap; UnicodeString appendItemFormats[UDATPG_FIELD_COUNT]; UnicodeString appendItemNames[UDATPG_FIELD_COUNT]; UnicodeString dateTimeFormat; UnicodeString decimal; DateTimeMatcher *skipMatcher; Hashtable *fAvailableFormatKeyHash; UnicodeString emptyString; char16_t fDefaultHourFormatChar; int32_t fAllowedHourFormats[7]; // Actually an array of AllowedHourFormat enum type, ending with UNKNOWN. /* internal flags masks for adjustFieldTypes etc. */ enum { kDTPGNoFlags = 0, kDTPGFixFractionalSeconds = 1, kDTPGSkeletonUsesCapJ = 2 // with #13183, no longer need flags for b, B }; void initData(const Locale &locale, UErrorCode &status); void addCanonicalItems(UErrorCode &status); void addICUPatterns(const Locale& locale, UErrorCode& status); void hackTimes(const UnicodeString& hackPattern, UErrorCode& status); void getCalendarTypeToUse(const Locale& locale, CharString& destination, UErrorCode& err); void consumeShortTimePattern(const UnicodeString& shortTimePattern, UErrorCode& status); void addCLDRData(const Locale& locale, UErrorCode& status); UDateTimePatternConflict addPatternWithSkeleton(const UnicodeString& pattern, const UnicodeString * skeletonToUse, UBool override, UnicodeString& conflictingPattern, UErrorCode& status); void initHashtable(UErrorCode& status); void setDateTimeFromCalendar(const Locale& locale, UErrorCode& status); void setDecimalSymbols(const Locale& locale, UErrorCode& status); UDateTimePatternField getAppendFormatNumber(const char* field) const; UDateTimePatternField getAppendNameNumber(const char* field) const; UnicodeString& getMutableAppendItemName(UDateTimePatternField field); void getAppendName(UDateTimePatternField field, UnicodeString& value); UnicodeString mapSkeletonMetacharacters(const UnicodeString& patternForm, int32_t* flags, UErrorCode& status); int32_t getCanonicalIndex(const UnicodeString& field); const UnicodeString* getBestRaw(DateTimeMatcher& source, int32_t includeMask, DistanceInfo* missingFields, const PtnSkeleton** specifiedSkeletonPtr = 0); UnicodeString adjustFieldTypes(const UnicodeString& pattern, const PtnSkeleton* specifiedSkeleton, int32_t flags, UDateTimePatternMatchOptions options = UDATPG_MATCH_NO_OPTIONS); UnicodeString getBestAppending(int32_t missingFields, int32_t flags, UDateTimePatternMatchOptions options = UDATPG_MATCH_NO_OPTIONS); int32_t getTopBitNumber(int32_t foundMask); void setAvailableFormat(const UnicodeString &key, UErrorCode& status); UBool isAvailableFormatSet(const UnicodeString &key) const; void copyHashtable(Hashtable *other, UErrorCode &status); UBool isCanonicalItem(const UnicodeString& item) const; static void U_CALLCONV loadAllowedHourFormatsData(UErrorCode &status); void getAllowedHourFormats(const Locale &locale, UErrorCode &status); struct AppendItemFormatsSink; struct AppendItemNamesSink; struct AvailableFormatsSink; } ;// end class DateTimePatternGenerator U_NAMESPACE_END #endif