FM / unicode

/usr/include/unicode

Name	Size	Mode	Actions
alphaindex.h	27158	0644	edit dl rm
appendable.h	8739	0644	edit dl rm
basictz.h	10163	0644	edit dl rm
brkiter.h	28478	0644	edit dl rm
bytestream.h	11013	0644	edit dl rm
bytestrie.h	21268	0644	edit dl rm
bytestriebuilder.h	7640	0644	edit dl rm
calendar.h	108424	0644	edit dl rm
caniter.h	7621	0644	edit dl rm
casemap.h	25933	0644	edit dl rm
char16ptr.h	7393	0644	edit dl rm
chariter.h	24638	0644	edit dl rm
choicfmt.h	24544	0644	edit dl rm
coleitr.h	14102	0644	edit dl rm
coll.h	57615	0644	edit dl rm
compactdecimalformat.h	7047	0644	edit dl rm
curramt.h	3869	0644	edit dl rm
currpinf.h	7479	0644	edit dl rm
currunit.h	4112	0644	edit dl rm
datefmt.h	41690	0644	edit dl rm
dbbi.h	1223	0644	edit dl rm
dcfmtsym.h	21101	0644	edit dl rm
decimfmt.h	89676	0644	edit dl rm
docmain.h	7380	0644	edit dl rm
dtfmtsym.h	39126	0644	edit dl rm
dtintrv.h	3935	0644	edit dl rm
dtitvfmt.h	50448	0644	edit dl rm
dtitvinf.h	19072	0644	edit dl rm
dtptngen.h	26692	0644	edit dl rm
dtrule.h	8898	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	8906	0644	edit dl rm
filteredbrk.h	5501	0644	edit dl rm
fmtable.h	25020	0644	edit dl rm
format.h	12802	0644	edit dl rm
formattedvalue.h	9987	0644	edit dl rm
fpositer.h	3107	0644	edit dl rm
gender.h	3408	0644	edit dl rm
gregocal.h	32642	0644	edit dl rm
icudataver.h	1049	0644	edit dl rm
icuplug.h	12109	0644	edit dl rm
idna.h	13000	0644	edit dl rm
listformatter.h	9004	0644	edit dl rm
localebuilder.h	11350	0644	edit dl rm
localematcher.h	27467	0644	edit dl rm
localpointer.h	19825	0644	edit dl rm
locdspnm.h	7292	0644	edit dl rm
locid.h	48804	0644	edit dl rm
measfmt.h	11690	0644	edit dl rm
measunit.h	107613	0644	edit dl rm
measure.h	4431	0644	edit dl rm
messagepattern.h	34517	0644	edit dl rm
msgfmt.h	45278	0644	edit dl rm
normalizer2.h	34466	0644	edit dl rm
normlzr.h	31690	0644	edit dl rm
nounit.h	2305	0644	edit dl rm
numberformatter.h	94505	0644	edit dl rm
numberrangeformatter.h	25790	0644	edit dl rm
numfmt.h	51034	0644	edit dl rm
numsys.h	7509	0644	edit dl rm
parseerr.h	3155	0644	edit dl rm
parsepos.h	5699	0644	edit dl rm
platform.h	28768	0644	edit dl rm
plurfmt.h	25847	0644	edit dl rm
plurrule.h	21316	0644	edit dl rm
ptypes.h	3577	0644	edit dl rm
putil.h	6471	0644	edit dl rm
rbbi.h	28413	0644	edit dl rm
rbnf.h	50021	0644	edit dl rm
rbtz.h	16210	0644	edit dl rm
regex.h	86385	0644	edit dl rm
region.h	9402	0644	edit dl rm
reldatefmt.h	22751	0644	edit dl rm
rep.h	9599	0644	edit dl rm
resbund.h	18513	0644	edit dl rm
schriter.h	6511	0644	edit dl rm
scientificnumberformatter.h	6589	0644	edit dl rm
search.h	22755	0644	edit dl rm
selfmt.h	14686	0644	edit dl rm
simpleformatter.h	12888	0644	edit dl rm
simpletz.h	46798	0644	edit dl rm
smpdtfmt.h	72778	0644	edit dl rm
sortkey.h	11452	0644	edit dl rm
std_string.h	1076	0644	edit dl rm
strenum.h	10157	0644	edit dl rm
stringoptions.h	5926	0644	edit dl rm
stringpiece.h	10287	0644	edit dl rm
stringtriebuilder.h	15842	0644	edit dl rm
stsearch.h	21926	0644	edit dl rm
symtable.h	4374	0644	edit dl rm
tblcoll.h	37801	0644	edit dl rm
timezone.h	44858	0644	edit dl rm
tmunit.h	3479	0644	edit dl rm
tmutamt.h	5029	0644	edit dl rm
tmutfmt.h	7602	0644	edit dl rm
translit.h	67397	0644	edit dl rm
tzfmt.h	43961	0644	edit dl rm
tznames.h	17251	0644	edit dl rm
tzrule.h	36450	0644	edit dl rm
tztrans.h	6278	0644	edit dl rm
ubidi.h	91759	0644	edit dl rm
ubiditransform.h	13003	0644	edit dl rm
ubrk.h	25043	0644	edit dl rm
ucal.h	62463	0644	edit dl rm
ucasemap.h	15579	0644	edit dl rm
ucat.h	5478	0644	edit dl rm
uchar.h	148111	0644	edit dl rm
ucharstrie.h	23066	0644	edit dl rm
ucharstriebuilder.h	7645	0644	edit dl rm
uchriter.h	13747	0644	edit dl rm
uclean.h	11468	0644	edit dl rm
ucnv.h	85051	0644	edit dl rm
ucnvsel.h	6339	0644	edit dl rm
ucnv_cb.h	6738	0644	edit dl rm
ucnv_err.h	21481	0644	edit dl rm
ucol.h	62987	0644	edit dl rm
ucoleitr.h	10056	0644	edit dl rm
uconfig.h	12356	0644	edit dl rm
ucpmap.h	5663	0644	edit dl rm
ucptrie.h	23044	0644	edit dl rm
ucsdet.h	15043	0644	edit dl rm
ucurr.h	17122	0644	edit dl rm
udat.h	63902	0644	edit dl rm
udata.h	16004	0644	edit dl rm
udateintervalformat.h	12218	0644	edit dl rm
udatpg.h	27405	0644	edit dl rm
udisplaycontext.h	6084	0644	edit dl rm
uenum.h	7981	0644	edit dl rm
ufieldpositer.h	4513	0644	edit dl rm
uformattable.h	11233	0644	edit dl rm
uformattedvalue.h	12600	0644	edit dl rm
ugender.h	2106	0644	edit dl rm
uidna.h	34229	0644	edit dl rm
uiter.h	23299	0644	edit dl rm
uldnames.h	10733	0644	edit dl rm
ulistformatter.h	11043	0644	edit dl rm
uloc.h	55936	0644	edit dl rm
ulocdata.h	11572	0644	edit dl rm
umachine.h	16439	0644	edit dl rm
umisc.h	1365	0644	edit dl rm
umsg.h	24832	0644	edit dl rm
umutablecptrie.h	8490	0644	edit dl rm
unifilt.h	4091	0644	edit dl rm
unifunct.h	4151	0644	edit dl rm
unimatch.h	6244	0644	edit dl rm
unirepl.h	3464	0644	edit dl rm
uniset.h	68108	0644	edit dl rm
unistr.h	174627	0644	edit dl rm
unorm.h	21042	0644	edit dl rm
unorm2.h	25269	0644	edit dl rm
unum.h	56269	0644	edit dl rm
unumberformatter.h	31177	0644	edit dl rm
unumberrangeformatter.h	15737	0644	edit dl rm
unumsys.h	7430	0644	edit dl rm
uobject.h	10934	0644	edit dl rm
upluralrules.h	8997	0644	edit dl rm
uregex.h	73719	0644	edit dl rm
uregion.h	10047	0644	edit dl rm
ureldatefmt.h	17448	0644	edit dl rm
urename.h	137853	0644	edit dl rm
urep.h	5507	0644	edit dl rm
ures.h	37418	0644	edit dl rm
uscript.h	28291	0644	edit dl rm
usearch.h	40153	0644	edit dl rm
uset.h	45503	0644	edit dl rm
usetiter.h	9910	0644	edit dl rm
ushape.h	18430	0644	edit dl rm
uspoof.h	67425	0644	edit dl rm
usprep.h	8382	0644	edit dl rm
ustdio.h	39482	0644	edit dl rm
ustream.h	1934	0644	edit dl rm
ustring.h	74096	0644	edit dl rm
ustringtrie.h	3224	0644	edit dl rm
utext.h	59471	0644	edit dl rm
utf.h	8057	0644	edit dl rm
utf8.h	31572	0644	edit dl rm
utf16.h	23910	0644	edit dl rm
utf32.h	763	0644	edit dl rm
utf_old.h	46929	0644	edit dl rm
utmscale.h	14107	0644	edit dl rm
utrace.h	17595	0644	edit dl rm
utrans.h	26157	0644	edit dl rm
utypes.h	31807	0644	edit dl rm
uvernum.h	6839	0644	edit dl rm
uversion.h	6137	0644	edit dl rm
vtzone.h	21303	0644	edit dl rm

Edit: /usr/include/unicode/dtptngen.h (26692B)

// © 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. Skips loading the standard date/time patterns (which is done via DateFormat).
     *
     * @internal
     */
    static DateTimePatternGenerator* U_EXPORT2 createInstanceNoStdPat(const Locale& uLocale, UErrorCode& status);

/**
     * 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
      */
    bool 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
     */
    bool 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 overridden. 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

/**
     * 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.
     * @stable ICU 67
     */
    UDateFormatHourCycle getDefaultHourCycle(UErrorCode& status) const;

#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 override;

/**
     * 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, UBool skipStdPatterns = false);

/**
     * 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, UBool skipStdPatterns = false);
    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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