FM / unicode

/usr/include/unicode

Name	Size	Mode	Actions
alphaindex.h	27118	0644	edit dl rm
appendable.h	8694	0644	edit dl rm
basictz.h	9491	0644	edit dl rm
brkiter.h	28464	0644	edit dl rm
bytestream.h	11037	0644	edit dl rm
bytestrie.h	21266	0644	edit dl rm
bytestriebuilder.h	7248	0644	edit dl rm
calendar.h	108278	0644	edit dl rm
caniter.h	7611	0644	edit dl rm
casemap.h	25933	0644	edit dl rm
char16ptr.h	7393	0644	edit dl rm
chariter.h	24632	0644	edit dl rm
choicfmt.h	24482	0644	edit dl rm
coleitr.h	14094	0644	edit dl rm
coll.h	57581	0644	edit dl rm
compactdecimalformat.h	7047	0644	edit dl rm
curramt.h	3851	0644	edit dl rm
currpinf.h	7473	0644	edit dl rm
currunit.h	4094	0644	edit dl rm
datefmt.h	41641	0644	edit dl rm
dbbi.h	1223	0644	edit dl rm
dcfmtsym.h	20897	0644	edit dl rm
decimfmt.h	89278	0644	edit dl rm
docmain.h	7142	0644	edit dl rm
dtfmtsym.h	38609	0644	edit dl rm
dtintrv.h	3930	0644	edit dl rm
dtitvfmt.h	47634	0644	edit dl rm
dtitvinf.h	19064	0644	edit dl rm
dtptngen.h	26419	0644	edit dl rm
dtrule.h	8888	0644	edit dl rm
edits.h	21237	0644	edit dl rm
enumset.h	2130	0644	edit dl rm
errorcode.h	4956	0644	edit dl rm
fieldpos.h	8899	0644	edit dl rm
filteredbrk.h	5501	0644	edit dl rm
fmtable.h	25007	0644	edit dl rm
format.h	12802	0644	edit dl rm
formattedvalue.h	9987	0644	edit dl rm
fpositer.h	3109	0644	edit dl rm
gender.h	3408	0644	edit dl rm
gregocal.h	32472	0644	edit dl rm
icudataver.h	1051	0644	edit dl rm
icuplug.h	12166	0644	edit dl rm
idna.h	13000	0644	edit dl rm
listformatter.h	9493	0644	edit dl rm
localebuilder.h	11502	0644	edit dl rm
localematcher.h	25147	0644	edit dl rm
localpointer.h	19829	0644	edit dl rm
locdspnm.h	7292	0644	edit dl rm
locid.h	48821	0644	edit dl rm
measfmt.h	11603	0644	edit dl rm
measunit.h	97563	0644	edit dl rm
measure.h	4423	0644	edit dl rm
messagepattern.h	34521	0644	edit dl rm
msgfmt.h	45168	0644	edit dl rm
normalizer2.h	34851	0644	edit dl rm
normlzr.h	31682	0644	edit dl rm
nounit.h	2754	0644	edit dl rm
numberformatter.h	86276	0644	edit dl rm
numberrangeformatter.h	28617	0644	edit dl rm
numfmt.h	50950	0644	edit dl rm
numsys.h	7500	0644	edit dl rm
parseerr.h	3155	0644	edit dl rm
parsepos.h	5692	0644	edit dl rm
platform.h	28751	0644	edit dl rm
plurfmt.h	25800	0644	edit dl rm
plurrule.h	18780	0644	edit dl rm
ptypes.h	3577	0644	edit dl rm
putil.h	6487	0644	edit dl rm
rbbi.h	27218	0644	edit dl rm
rbnf.h	49899	0644	edit dl rm
rbtz.h	15979	0644	edit dl rm
regex.h	86367	0644	edit dl rm
region.h	9404	0644	edit dl rm
reldatefmt.h	22801	0644	edit dl rm
rep.h	9599	0644	edit dl rm
resbund.h	18503	0644	edit dl rm
schriter.h	6475	0644	edit dl rm
scientificnumberformatter.h	6553	0644	edit dl rm
search.h	22757	0644	edit dl rm
selfmt.h	14643	0644	edit dl rm
simpleformatter.h	12888	0644	edit dl rm
simpletz.h	46527	0644	edit dl rm
smpdtfmt.h	72713	0644	edit dl rm
sortkey.h	11444	0644	edit dl rm
std_string.h	1076	0644	edit dl rm
strenum.h	10158	0644	edit dl rm
stringoptions.h	5926	0644	edit dl rm
stringpiece.h	10597	0644	edit dl rm
stringtriebuilder.h	15698	0644	edit dl rm
stsearch.h	21810	0644	edit dl rm
symtable.h	4374	0644	edit dl rm
tblcoll.h	37489	0644	edit dl rm
timezone.h	42005	0644	edit dl rm
tmunit.h	3461	0644	edit dl rm
tmutamt.h	5015	0644	edit dl rm
tmutfmt.h	8042	0644	edit dl rm
translit.h	67400	0644	edit dl rm
tzfmt.h	43916	0644	edit dl rm
tznames.h	17252	0644	edit dl rm
tzrule.h	36215	0644	edit dl rm
tztrans.h	6271	0644	edit dl rm
ubidi.h	91711	0644	edit dl rm
ubiditransform.h	12950	0644	edit dl rm
ubrk.h	24547	0644	edit dl rm
ucal.h	58265	0644	edit dl rm
ucasemap.h	15546	0644	edit dl rm
ucat.h	5484	0644	edit dl rm
uchar.h	144630	0644	edit dl rm
ucharstrie.h	23120	0644	edit dl rm
ucharstriebuilder.h	7378	0644	edit dl rm
uchriter.h	13521	0644	edit dl rm
uclean.h	11474	0644	edit dl rm
ucnv.h	85085	0644	edit dl rm
ucnvsel.h	6283	0644	edit dl rm
ucnv_cb.h	6748	0644	edit dl rm
ucnv_err.h	21492	0644	edit dl rm
ucol.h	62939	0644	edit dl rm
ucoleitr.h	9684	0644	edit dl rm
uconfig.h	12356	0644	edit dl rm
ucpmap.h	5663	0644	edit dl rm
ucptrie.h	23002	0644	edit dl rm
ucsdet.h	15018	0644	edit dl rm
ucurr.h	16507	0644	edit dl rm
udat.h	62851	0644	edit dl rm
udata.h	15930	0644	edit dl rm
udateintervalformat.h	10995	0644	edit dl rm
udatpg.h	27447	0644	edit dl rm
udisplaycontext.h	6029	0644	edit dl rm
uenum.h	7970	0644	edit dl rm
ufieldpositer.h	4461	0644	edit dl rm
uformattable.h	11198	0644	edit dl rm
uformattedvalue.h	12413	0644	edit dl rm
ugender.h	2052	0644	edit dl rm
uidna.h	34169	0644	edit dl rm
uiter.h	23319	0644	edit dl rm
uldnames.h	10702	0644	edit dl rm
ulistformatter.h	11086	0644	edit dl rm
uloc.h	54432	0644	edit dl rm
ulocdata.h	11533	0644	edit dl rm
umachine.h	14884	0644	edit dl rm
umisc.h	1365	0644	edit dl rm
umsg.h	24812	0644	edit dl rm
umutablecptrie.h	8435	0644	edit dl rm
unifilt.h	4055	0644	edit dl rm
unifunct.h	4141	0644	edit dl rm
unimatch.h	6244	0644	edit dl rm
unirepl.h	3464	0644	edit dl rm
uniset.h	66459	0644	edit dl rm
unistr.h	174523	0644	edit dl rm
unorm.h	21015	0644	edit dl rm
unorm2.h	25254	0644	edit dl rm
unum.h	54743	0644	edit dl rm
unumberformatter.h	25824	0644	edit dl rm
unumsys.h	7387	0644	edit dl rm
uobject.h	10936	0644	edit dl rm
upluralrules.h	8013	0644	edit dl rm
uregex.h	73784	0644	edit dl rm
uregion.h	10073	0644	edit dl rm
ureldatefmt.h	17409	0644	edit dl rm
urename.h	134449	0644	edit dl rm
urep.h	5507	0644	edit dl rm
ures.h	37415	0644	edit dl rm
uscript.h	27867	0644	edit dl rm
usearch.h	39039	0644	edit dl rm
uset.h	40958	0644	edit dl rm
usetiter.h	9781	0644	edit dl rm
ushape.h	18432	0644	edit dl rm
uspoof.h	67480	0644	edit dl rm
usprep.h	8331	0644	edit dl rm
ustdio.h	39469	0644	edit dl rm
ustream.h	1934	0644	edit dl rm
ustring.h	74211	0644	edit dl rm
ustringtrie.h	3224	0644	edit dl rm
utext.h	59527	0644	edit dl rm
utf.h	8046	0644	edit dl rm
utf8.h	31700	0644	edit dl rm
utf16.h	23878	0644	edit dl rm
utf32.h	763	0644	edit dl rm
utf_old.h	46929	0644	edit dl rm
utmscale.h	14113	0644	edit dl rm
utrace.h	17706	0644	edit dl rm
utrans.h	26130	0644	edit dl rm
utypes.h	31481	0644	edit dl rm
uvernum.h	6832	0644	edit dl rm
uversion.h	6145	0644	edit dl rm
vtzone.h	20784	0644	edit dl rm

Edit: /usr/include/unicode/dtptngen.h (26419B)

// © 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/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#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).
     * 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. Note: The more general method
     * for getting date/time field display names is getFieldDisplayName.
     *
     * @param field  such as UDATPG_ERA_FIELD.
     * @return name for field
     * @see getFieldDisplayName
     * @stable ICU 3.8
     */
    const UnicodeString& getAppendItemName(UDateTimePatternField field) const;

/**
     * The general interface to get a display name for a particular date/time field,
     * in one of several possible display widths.
     *
     * @param field  The desired UDateTimePatternField, such as UDATPG_ERA_FIELD.
     * @param width  The desired UDateTimePGDisplayWidth, such as UDATPG_ABBREVIATED.
     * @return       The display name for field
     * @stable ICU 61
     */
    UnicodeString getFieldDisplayName(UDateTimePatternField field, UDateTimePGDisplayWidth width) 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;

#if !UCONFIG_NO_FORMATTING

#ifndef U_HIDE_DRAFT_API
    /**
     * Get the default hour cycle for a locale. Uses the locale that the
     * DateTimePatternGenerator was initially created with.
     * 
     * Cannot be used on an empty DateTimePatternGenerator instance.
     * 
     * @param status  Output param set to success/failure code on exit, which
     *                which must not indicate a failure before the function call.
     *                Set to U_UNSUPPORTED_ERROR if used on an empty instance.
     * @return the default hour cycle.
     * @draft ICU 67
     */
    UDateFormatHourCycle getDefaultHourCycle(UErrorCode& status) const;
#endif  /* U_HIDE_DRAFT_API */

#endif /* #if !UCONFIG_NO_FORMATTING */
    
    /**
     * 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.
     */
    DateTimePatternGenerator(UErrorCode & status);

/**
     * Constructor.
     */
    DateTimePatternGenerator(const Locale& locale, UErrorCode & status);

/**
     * Copy constructor.
     * @param other DateTimePatternGenerator to copy
     */
    DateTimePatternGenerator(const DateTimePatternGenerator& other);

/**
     * Default assignment operator.
     * @param other DateTimePatternGenerator to copy
     */
    DateTimePatternGenerator& operator=(const DateTimePatternGenerator& other);

// TODO(ticket:13619): re-enable when UDATPG_NARROW no longer in  draft mode.
    // static const int32_t UDATPG_WIDTH_COUNT = UDATPG_NARROW + 1;

Locale pLocale;  // pattern locale
    FormatParser *fp;
    DateTimeMatcher* dtMatcher;
    DistanceInfo *distanceInfo;
    PatternMap *patternMap;
    UnicodeString appendItemFormats[UDATPG_FIELD_COUNT];
    // TODO(ticket:13619): [3] -> UDATPG_WIDTH_COUNT
    UnicodeString fieldDisplayNames[UDATPG_FIELD_COUNT][3];
    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 error code used for recording/reporting errors that occur during methods that do not
    // have a UErrorCode parameter. For example: the Copy Constructor, or the ::clone() method.
    // When this is set to an error the object is in an invalid state.
    UErrorCode internalErrorCode;

/* 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;
    // Note for the next 3: UDateTimePGDisplayWidth is now stable ICU 61
    UDateTimePatternField getFieldAndWidthIndices(const char* key, UDateTimePGDisplayWidth* widthP) const;
    void setFieldDisplayName(UDateTimePatternField field, UDateTimePGDisplayWidth width, const UnicodeString& value);
    UnicodeString& getMutableFieldDisplayName(UDateTimePatternField field, UDateTimePGDisplayWidth width);
    void getAppendName(UDateTimePatternField field, UnicodeString& value);
    UnicodeString mapSkeletonMetacharacters(const UnicodeString& patternForm, int32_t* flags, UErrorCode& status);
    const UnicodeString* getBestRaw(DateTimeMatcher& source, int32_t includeMask, DistanceInfo* missingFields, UErrorCode& status, 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, UErrorCode& status, UDateTimePatternMatchOptions options = UDATPG_MATCH_NO_OPTIONS);
    int32_t getTopBitNumber(int32_t foundMask) const;
    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 /* U_SHOW_CPLUSPLUS_API */

#endif

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