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/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/udateintervalformat.h (12218B)

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*****************************************************************************************
* Copyright (C) 2010-2012,2015 International Business Machines
* Corporation and others. All Rights Reserved.
*****************************************************************************************
*/

#ifndef UDATEINTERVALFORMAT_H
#define UDATEINTERVALFORMAT_H

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "unicode/ucal.h"
#include "unicode/umisc.h"
#include "unicode/uformattedvalue.h"
#include "unicode/udisplaycontext.h"

#if U_SHOW_CPLUSPLUS_API
#include "unicode/localpointer.h"
#endif   // U_SHOW_CPLUSPLUS_API

/**
 * \file
 * \brief C API: Format a date interval.
 *
 * A UDateIntervalFormat is used to format the range between two UDate values
 * in a locale-sensitive way, using a skeleton that specifies the precision and
 * completeness of the information to show. If the range smaller than the resolution
 * specified by the skeleton, a single date format will be produced. If the range
 * is larger than the format specified by the skeleton, a locale-specific fallback
 * will be used to format the items missing from the skeleton.
 *
 * For example, if the range is 2010-03-04 07:56 - 2010-03-04 19:56 (12 hours)
 * - The skeleton jm will produce
 *   for en_US, "7:56 AM - 7:56 PM"
 *   for en_GB, "7:56 - 19:56"
 * - The skeleton MMMd will produce
 *   for en_US, "Mar 4"
 *   for en_GB, "4 Mar"
 * If the range is 2010-03-04 07:56 - 2010-03-08 16:11 (4 days, 8 hours, 15 minutes)
 * - The skeleton jm will produce
 *   for en_US, "3/4/2010 7:56 AM - 3/8/2010 4:11 PM"
 *   for en_GB, "4/3/2010 7:56 - 8/3/2010 16:11"
 * - The skeleton MMMd will produce
 *   for en_US, "Mar 4-8"
 *   for en_GB, "4-8 Mar"
 * 
 * Note:  the "-" characters in the above sample output will actually be
 * Unicode 2013, EN_DASH, in all but the last example.
 *
 * Note, in ICU 4.4 the standard skeletons for which date interval format data
 * is usually available are as follows; best results will be obtained by using
 * skeletons from this set, or those formed by combining these standard skeletons
 * (note that for these skeletons, the length of digit field such as d, y, or
 * M vs MM is irrelevant (but for non-digit fields such as MMM vs MMMM it is
 * relevant). Note that a skeleton involving h or H generally explicitly requests
 * that time style (12- or 24-hour time respectively). For a skeleton that
 * requests the locale's default time style (h or H), use 'j' instead of h or H.
 *   h, H, hm, Hm,
 *   hv, Hv, hmv, Hmv,
 *   d,
 *   M, MMM, MMMM,
 *   Md, MMMd,
 *   MEd, MMMEd,
 *   y,
 *   yM, yMMM, yMMMM,
 *   yMd, yMMMd,
 *   yMEd, yMMMEd
 *
 * Locales for which ICU 4.4 seems to have a reasonable amount of this data
 * include:
 *   af, am, ar, be, bg, bn, ca, cs, da, de (_AT), el, en (_AU,_CA,_GB,_IE,_IN...),
 *   eo, es (_AR,_CL,_CO,...,_US) et, fa, fi, fo, fr (_BE,_CH,_CA), fur, gsw, he,
 *   hr, hu, hy, is, it (_CH), ja, kk, km, ko, lt, lv, mk, ml, mt, nb, nl )_BE),
 *   nn, pl, pt (_PT), rm, ro, ru (_UA), sk, sl, so, sq, sr, sr_Latn, sv, th, to,
 *   tr, uk, ur, vi, zh (_SG), zh_Hant (_HK,_MO)
 */

/**
 * Opaque UDateIntervalFormat object for use in C programs.
 * @stable ICU 4.8
 */
struct UDateIntervalFormat;
typedef struct UDateIntervalFormat UDateIntervalFormat;  /**< C typedef for struct UDateIntervalFormat. @stable ICU 4.8 */

struct UFormattedDateInterval;
/**
 * Opaque struct to contain the results of a UDateIntervalFormat operation.
 * @stable ICU 64
 */
typedef struct UFormattedDateInterval UFormattedDateInterval;

/**
 * Open a new UDateIntervalFormat object using the predefined rules for a
 * given locale plus a specified skeleton.
 * @param locale
 *            The locale for whose rules should be used; may be NULL for
 *            default locale.
 * @param skeleton
 *            A pattern containing only the fields desired for the interval
 *            format, for example "Hm", "yMMMd", or "yMMMEdHm".
 * @param skeletonLength
 *            The length of skeleton; may be -1 if the skeleton is zero-terminated.
 * @param tzID
 *            A timezone ID specifying the timezone to use. If 0, use the default
 *            timezone.
 * @param tzIDLength
 *            The length of tzID, or -1 if null-terminated. If 0, use the default
 *            timezone.
 * @param status
 *            A pointer to a UErrorCode to receive any errors.
 * @return
 *            A pointer to a UDateIntervalFormat object for the specified locale,
 *            or NULL if an error occurred.
 * @stable ICU 4.8
 */
U_CAPI UDateIntervalFormat* U_EXPORT2
udtitvfmt_open(const char*  locale,
              const UChar* skeleton,
              int32_t      skeletonLength,
              const UChar* tzID,
              int32_t      tzIDLength,
              UErrorCode*  status);

/**
 * Close a UDateIntervalFormat object. Once closed it may no longer be used.
 * @param formatter
 *            The UDateIntervalFormat object to close.
 * @stable ICU 4.8
 */
U_CAPI void U_EXPORT2
udtitvfmt_close(UDateIntervalFormat *formatter);

/**
 * Creates an object to hold the result of a UDateIntervalFormat
 * operation. The object can be used repeatedly; it is cleared whenever
 * passed to a format function.
 *
 * @param ec Set if an error occurs.
 * @return A pointer needing ownership.
 * @stable ICU 64
 */
U_CAPI UFormattedDateInterval* U_EXPORT2
udtitvfmt_openResult(UErrorCode* ec);

/**
 * Returns a representation of a UFormattedDateInterval as a UFormattedValue,
 * which can be subsequently passed to any API requiring that type.
 *
 * The returned object is owned by the UFormattedDateInterval and is valid
 * only as long as the UFormattedDateInterval is present and unchanged in memory.
 *
 * You can think of this method as a cast between types.
 *
 * When calling ufmtval_nextPosition():
 * The fields are returned from left to right. The special field category
 * UFIELD_CATEGORY_DATE_INTERVAL_SPAN is used to indicate which datetime
 * primitives came from which arguments: 0 means fromCalendar, and 1 means
 * toCalendar. The span category will always occur before the
 * corresponding fields in UFIELD_CATEGORY_DATE
 * in the ufmtval_nextPosition() iterator.
 *
 * @param uresult The object containing the formatted string.
 * @param ec Set if an error occurs.
 * @return A UFormattedValue owned by the input object.
 * @stable ICU 64
 */
U_CAPI const UFormattedValue* U_EXPORT2
udtitvfmt_resultAsValue(const UFormattedDateInterval* uresult, UErrorCode* ec);

/**
 * Releases the UFormattedDateInterval created by udtitvfmt_openResult().
 *
 * @param uresult The object to release.
 * @stable ICU 64
 */
U_CAPI void U_EXPORT2
udtitvfmt_closeResult(UFormattedDateInterval* uresult);

#if U_SHOW_CPLUSPLUS_API

U_NAMESPACE_BEGIN

/**
 * \class LocalUDateIntervalFormatPointer
 * "Smart pointer" class, closes a UDateIntervalFormat via udtitvfmt_close().
 * For most methods see the LocalPointerBase base class.
 *
 * @see LocalPointerBase
 * @see LocalPointer
 * @stable ICU 4.8
 */
U_DEFINE_LOCAL_OPEN_POINTER(LocalUDateIntervalFormatPointer, UDateIntervalFormat, udtitvfmt_close);

/**
 * \class LocalUFormattedDateIntervalPointer
 * "Smart pointer" class, closes a UFormattedDateInterval via udtitvfmt_close().
 * For most methods see the LocalPointerBase base class.
 *
 * @see LocalPointerBase
 * @see LocalPointer
 * @stable ICU 64
 */
U_DEFINE_LOCAL_OPEN_POINTER(LocalUFormattedDateIntervalPointer, UFormattedDateInterval, udtitvfmt_closeResult);

U_NAMESPACE_END

#endif

/**
 * Formats a date/time range using the conventions established for the
 * UDateIntervalFormat object.
 * @param formatter
 *            The UDateIntervalFormat object specifying the format conventions.
 * @param fromDate
 *            The starting point of the range.
 * @param toDate
 *            The ending point of the range.
 * @param result
 *            A pointer to a buffer to receive the formatted range.
 * @param resultCapacity
 *            The maximum size of result.
 * @param position
 *            A pointer to a UFieldPosition. On input, position->field is read.
 *            On output, position->beginIndex and position->endIndex indicate
 *            the beginning and ending indices of field number position->field,
 *            if such a field exists. This parameter may be NULL, in which case
 *            no field position data is returned.
 *            There may be multiple instances of a given field type in an
 *            interval format; in this case the position indices refer to the
 *            first instance.
 * @param status
 *            A pointer to a UErrorCode to receive any errors.
 * @return
 *            The total buffer size needed; if greater than resultLength, the
 *            output was truncated.
 * @stable ICU 4.8
 */
U_CAPI int32_t U_EXPORT2
udtitvfmt_format(const UDateIntervalFormat* formatter,
                UDate           fromDate,
                UDate           toDate,
                UChar*          result,
                int32_t         resultCapacity,
                UFieldPosition* position,
                UErrorCode*     status);

U_CAPI void U_EXPORT2
udtitvfmt_formatCalendarToResult(
                const UDateIntervalFormat* formatter,
                UCalendar*      fromCalendar,
                UCalendar*      toCalendar,
                UFormattedDateInterval* result,
                UErrorCode*     status);

/**
 * Set a particular UDisplayContext value in the formatter, such as
 * UDISPCTX_CAPITALIZATION_FOR_STANDALONE. This causes the formatted
 * result to be capitalized appropriately for the context in which
 * it is intended to be used, considering both the locale and the
 * type of field at the beginning of the formatted result.
 * @param formatter The formatter for which to set a UDisplayContext value.
 * @param value The UDisplayContext value to set.
 * @param status A pointer to an UErrorCode to receive any errors
 * @stable ICU 68
 */
U_CAPI void U_EXPORT2
udtitvfmt_setContext(UDateIntervalFormat* formatter, UDisplayContext value, UErrorCode* status);

/**
 * Get the formatter's UDisplayContext value for the specified UDisplayContextType,
 * such as UDISPCTX_TYPE_CAPITALIZATION.
 * @param formatter The formatter to query.
 * @param type The UDisplayContextType whose value to return
 * @param status A pointer to an UErrorCode to receive any errors
 * @return The UDisplayContextValue for the specified type.
 * @stable ICU 68
 */
U_CAPI UDisplayContext U_EXPORT2
udtitvfmt_getContext(const UDateIntervalFormat* formatter, UDisplayContextType type, UErrorCode* status);

#endif /* #if !UCONFIG_NO_FORMATTING */

#endif

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