1/*
2*******************************************************************************
3*
4* Copyright (C) 2007-2015, International Business Machines
5* Corporation and others. All Rights Reserved.
6*
7*******************************************************************************
8* file name: udatpg.h
9* encoding: US-ASCII
10* tab size: 8 (not used)
11* indentation:4
12*
13* created on: 2007jul30
14* created by: Markus W. Scherer
15*/
16
17#ifndef __UDATPG_H__
18#define __UDATPG_H__
19
20#include "unicode/utypes.h"
21#include "unicode/uenum.h"
22#include "unicode/localpointer.h"
23
24/**
25 * \file
26 * \brief C API: Wrapper for icu::DateTimePatternGenerator (unicode/dtptngen.h).
27 *
28 * UDateTimePatternGenerator provides flexible generation of date format patterns,
29 * like "yy-MM-dd". The user can build up the generator by adding successive
30 * patterns. Once that is done, a query can be made using a "skeleton", which is
31 * a pattern which just includes the desired fields and lengths. The generator
32 * will return the "best fit" pattern corresponding to that skeleton.
33 * <p>The main method people will use is udatpg_getBestPattern, since normally
34 * UDateTimePatternGenerator is pre-built with data from a particular locale.
35 * However, generators can be built directly from other data as well.
36 * <p><i>Issue: may be useful to also have a function that returns the list of
37 * fields in a pattern, in order, since we have that internally.
38 * That would be useful for getting the UI order of field elements.</i>
39 */
40
41/**
42 * Opaque type for a date/time pattern generator object.
43 * @stable ICU 3.8
44 */
45typedef void *UDateTimePatternGenerator;
46
47/**
48 * Field number constants for udatpg_getAppendItemFormats() and similar functions.
49 * These constants are separate from UDateFormatField despite semantic overlap
50 * because some fields are merged for the date/time pattern generator.
51 * @stable ICU 3.8
52 */
53typedef enum UDateTimePatternField {
54 /** @stable ICU 3.8 */
55 UDATPG_ERA_FIELD,
56 /** @stable ICU 3.8 */
57 UDATPG_YEAR_FIELD,
58 /** @stable ICU 3.8 */
59 UDATPG_QUARTER_FIELD,
60 /** @stable ICU 3.8 */
61 UDATPG_MONTH_FIELD,
62 /** @stable ICU 3.8 */
63 UDATPG_WEEK_OF_YEAR_FIELD,
64 /** @stable ICU 3.8 */
65 UDATPG_WEEK_OF_MONTH_FIELD,
66 /** @stable ICU 3.8 */
67 UDATPG_WEEKDAY_FIELD,
68 /** @stable ICU 3.8 */
69 UDATPG_DAY_OF_YEAR_FIELD,
70 /** @stable ICU 3.8 */
71 UDATPG_DAY_OF_WEEK_IN_MONTH_FIELD,
72 /** @stable ICU 3.8 */
73 UDATPG_DAY_FIELD,
74 /** @stable ICU 3.8 */
75 UDATPG_DAYPERIOD_FIELD,
76 /** @stable ICU 3.8 */
77 UDATPG_HOUR_FIELD,
78 /** @stable ICU 3.8 */
79 UDATPG_MINUTE_FIELD,
80 /** @stable ICU 3.8 */
81 UDATPG_SECOND_FIELD,
82 /** @stable ICU 3.8 */
83 UDATPG_FRACTIONAL_SECOND_FIELD,
84 /** @stable ICU 3.8 */
85 UDATPG_ZONE_FIELD,
86 /** @stable ICU 3.8 */
87 UDATPG_FIELD_COUNT
88} UDateTimePatternField;
89
90/**
91 * Masks to control forcing the length of specified fields in the returned
92 * pattern to match those in the skeleton (when this would not happen
93 * otherwise). These may be combined to force the length of multiple fields.
94 * Used with udatpg_getBestPatternWithOptions, udatpg_replaceFieldTypesWithOptions.
95 * @stable ICU 4.4
96 */
97typedef enum UDateTimePatternMatchOptions {
98 /** @stable ICU 4.4 */
99 UDATPG_MATCH_NO_OPTIONS = 0,
100 /** @stable ICU 4.4 */
101 UDATPG_MATCH_HOUR_FIELD_LENGTH = 1 << UDATPG_HOUR_FIELD,
102#ifndef U_HIDE_INTERNAL_API
103 /** @internal ICU 4.4 */
104 UDATPG_MATCH_MINUTE_FIELD_LENGTH = 1 << UDATPG_MINUTE_FIELD,
105 /** @internal ICU 4.4 */
106 UDATPG_MATCH_SECOND_FIELD_LENGTH = 1 << UDATPG_SECOND_FIELD,
107#endif /* U_HIDE_INTERNAL_API */
108 /** @stable ICU 4.4 */
109 UDATPG_MATCH_ALL_FIELDS_LENGTH = (1 << UDATPG_FIELD_COUNT) - 1
110} UDateTimePatternMatchOptions;
111
112/**
113 * Status return values from udatpg_addPattern().
114 * @stable ICU 3.8
115 */
116typedef enum UDateTimePatternConflict {
117 /** @stable ICU 3.8 */
118 UDATPG_NO_CONFLICT,
119 /** @stable ICU 3.8 */
120 UDATPG_BASE_CONFLICT,
121 /** @stable ICU 3.8 */
122 UDATPG_CONFLICT,
123 /** @stable ICU 3.8 */
124 UDATPG_CONFLICT_COUNT
125} UDateTimePatternConflict;
126
127/**
128 * Open a generator according to a given locale.
129 * @param locale
130 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
131 * failure before the function call.
132 * @return a pointer to UDateTimePatternGenerator.
133 * @stable ICU 3.8
134 */
135U_STABLE UDateTimePatternGenerator * U_EXPORT2
136udatpg_open(const char *locale, UErrorCode *pErrorCode);
137
138/**
139 * Open an empty generator, to be constructed with udatpg_addPattern(...) etc.
140 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
141 * failure before the function call.
142 * @return a pointer to UDateTimePatternGenerator.
143 * @stable ICU 3.8
144 */
145U_STABLE UDateTimePatternGenerator * U_EXPORT2
146udatpg_openEmpty(UErrorCode *pErrorCode);
147
148/**
149 * Close a generator.
150 * @param dtpg a pointer to UDateTimePatternGenerator.
151 * @stable ICU 3.8
152 */
153U_STABLE void U_EXPORT2
154udatpg_close(UDateTimePatternGenerator *dtpg);
155
156#if U_SHOW_CPLUSPLUS_API
157
158U_NAMESPACE_BEGIN
159
160/**
161 * \class LocalUDateTimePatternGeneratorPointer
162 * "Smart pointer" class, closes a UDateTimePatternGenerator via udatpg_close().
163 * For most methods see the LocalPointerBase base class.
164 *
165 * @see LocalPointerBase
166 * @see LocalPointer
167 * @stable ICU 4.4
168 */
169U_DEFINE_LOCAL_OPEN_POINTER(LocalUDateTimePatternGeneratorPointer, UDateTimePatternGenerator, udatpg_close);
170
171U_NAMESPACE_END
172
173#endif
174
175/**
176 * Create a copy pf a generator.
177 * @param dtpg a pointer to UDateTimePatternGenerator to be copied.
178 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
179 * failure before the function call.
180 * @return a pointer to a new UDateTimePatternGenerator.
181 * @stable ICU 3.8
182 */
183U_STABLE UDateTimePatternGenerator * U_EXPORT2
184udatpg_clone(const UDateTimePatternGenerator *dtpg, UErrorCode *pErrorCode);
185
186/**
187 * Get the best pattern matching the input skeleton. It is guaranteed to
188 * have all of the fields in the skeleton.
189 *
190 * Note that this function uses a non-const UDateTimePatternGenerator:
191 * It uses a stateful pattern parser which is set up for each generator object,
192 * rather than creating one for each function call.
193 * Consecutive calls to this function do not affect each other,
194 * but this function cannot be used concurrently on a single generator object.
195 *
196 * @param dtpg a pointer to UDateTimePatternGenerator.
197 * @param skeleton
198 * The skeleton is a pattern containing only the variable fields.
199 * For example, "MMMdd" and "mmhh" are skeletons.
200 * @param length the length of skeleton
201 * @param bestPattern
202 * The best pattern found from the given skeleton.
203 * @param capacity the capacity of bestPattern.
204 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
205 * failure before the function call.
206 * @return the length of bestPattern.
207 * @stable ICU 3.8
208 */
209U_STABLE int32_t U_EXPORT2
210udatpg_getBestPattern(UDateTimePatternGenerator *dtpg,
211 const UChar *skeleton, int32_t length,
212 UChar *bestPattern, int32_t capacity,
213 UErrorCode *pErrorCode);
214
215/**
216 * Get the best pattern matching the input skeleton. It is guaranteed to
217 * have all of the fields in the skeleton.
218 *
219 * Note that this function uses a non-const UDateTimePatternGenerator:
220 * It uses a stateful pattern parser which is set up for each generator object,
221 * rather than creating one for each function call.
222 * Consecutive calls to this function do not affect each other,
223 * but this function cannot be used concurrently on a single generator object.
224 *
225 * @param dtpg a pointer to UDateTimePatternGenerator.
226 * @param skeleton
227 * The skeleton is a pattern containing only the variable fields.
228 * For example, "MMMdd" and "mmhh" are skeletons.
229 * @param length the length of skeleton
230 * @param options
231 * Options for forcing the length of specified fields in the
232 * returned pattern to match those in the skeleton (when this
233 * would not happen otherwise). For default behavior, use
234 * UDATPG_MATCH_NO_OPTIONS.
235 * @param bestPattern
236 * The best pattern found from the given skeleton.
237 * @param capacity
238 * the capacity of bestPattern.
239 * @param pErrorCode
240 * a pointer to the UErrorCode which must not indicate a
241 * failure before the function call.
242 * @return the length of bestPattern.
243 * @stable ICU 4.4
244 */
245U_STABLE int32_t U_EXPORT2
246udatpg_getBestPatternWithOptions(UDateTimePatternGenerator *dtpg,
247 const UChar *skeleton, int32_t length,
248 UDateTimePatternMatchOptions options,
249 UChar *bestPattern, int32_t capacity,
250 UErrorCode *pErrorCode);
251
252/**
253 * Get a unique skeleton from a given pattern. For example,
254 * both "MMM-dd" and "dd/MMM" produce the skeleton "MMMdd".
255 *
256 * Note that this function uses a non-const UDateTimePatternGenerator:
257 * It uses a stateful pattern parser which is set up for each generator object,
258 * rather than creating one for each function call.
259 * Consecutive calls to this function do not affect each other,
260 * but this function cannot be used concurrently on a single generator object.
261 *
262 * @param dtpg a pointer to UDateTimePatternGenerator.
263 * @param pattern input pattern, such as "dd/MMM".
264 * @param length the length of pattern.
265 * @param skeleton such as "MMMdd"
266 * @param capacity the capacity of skeleton.
267 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
268 * failure before the function call.
269 * @return the length of skeleton.
270 * @stable ICU 3.8
271 */
272U_STABLE int32_t U_EXPORT2
273udatpg_getSkeleton(UDateTimePatternGenerator *dtpg,
274 const UChar *pattern, int32_t length,
275 UChar *skeleton, int32_t capacity,
276 UErrorCode *pErrorCode);
277
278/**
279 * Get a unique base skeleton from a given pattern. This is the same
280 * as the skeleton, except that differences in length are minimized so
281 * as to only preserve the difference between string and numeric form. So
282 * for example, both "MMM-dd" and "d/MMM" produce the skeleton "MMMd"
283 * (notice the single d).
284 *
285 * Note that this function uses a non-const UDateTimePatternGenerator:
286 * It uses a stateful pattern parser which is set up for each generator object,
287 * rather than creating one for each function call.
288 * Consecutive calls to this function do not affect each other,
289 * but this function cannot be used concurrently on a single generator object.
290 *
291 * @param dtpg a pointer to UDateTimePatternGenerator.
292 * @param pattern input pattern, such as "dd/MMM".
293 * @param length the length of pattern.
294 * @param baseSkeleton such as "Md"
295 * @param capacity the capacity of base skeleton.
296 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
297 * failure before the function call.
298 * @return the length of baseSkeleton.
299 * @stable ICU 3.8
300 */
301U_STABLE int32_t U_EXPORT2
302udatpg_getBaseSkeleton(UDateTimePatternGenerator *dtpg,
303 const UChar *pattern, int32_t length,
304 UChar *baseSkeleton, int32_t capacity,
305 UErrorCode *pErrorCode);
306
307/**
308 * Adds a pattern to the generator. If the pattern has the same skeleton as
309 * an existing pattern, and the override parameter is set, then the previous
310 * value is overriden. Otherwise, the previous value is retained. In either
311 * case, the conflicting status is set and previous vale is stored in
312 * conflicting pattern.
313 * <p>
314 * Note that single-field patterns (like "MMM") are automatically added, and
315 * don't need to be added explicitly!
316 *
317 * @param dtpg a pointer to UDateTimePatternGenerator.
318 * @param pattern input pattern, such as "dd/MMM"
319 * @param patternLength the length of pattern.
320 * @param override When existing values are to be overridden use true,
321 * otherwise use false.
322 * @param conflictingPattern Previous pattern with the same skeleton.
323 * @param capacity the capacity of conflictingPattern.
324 * @param pLength a pointer to the length of conflictingPattern.
325 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
326 * failure before the function call.
327 * @return conflicting status. The value could be UDATPG_NO_CONFLICT,
328 * UDATPG_BASE_CONFLICT or UDATPG_CONFLICT.
329 * @stable ICU 3.8
330 */
331U_STABLE UDateTimePatternConflict U_EXPORT2
332udatpg_addPattern(UDateTimePatternGenerator *dtpg,
333 const UChar *pattern, int32_t patternLength,
334 UBool override,
335 UChar *conflictingPattern, int32_t capacity, int32_t *pLength,
336 UErrorCode *pErrorCode);
337
338/**
339 * An AppendItem format is a pattern used to append a field if there is no
340 * good match. For example, suppose that the input skeleton is "GyyyyMMMd",
341 * and there is no matching pattern internally, but there is a pattern
342 * matching "yyyyMMMd", say "d-MM-yyyy". Then that pattern is used, plus the
343 * G. The way these two are conjoined is by using the AppendItemFormat for G
344 * (era). So if that value is, say "{0}, {1}" then the final resulting
345 * pattern is "d-MM-yyyy, G".
346 * <p>
347 * There are actually three available variables: {0} is the pattern so far,
348 * {1} is the element we are adding, and {2} is the name of the element.
349 * <p>
350 * This reflects the way that the CLDR data is organized.
351 *
352 * @param dtpg a pointer to UDateTimePatternGenerator.
353 * @param field UDateTimePatternField, such as UDATPG_ERA_FIELD
354 * @param value pattern, such as "{0}, {1}"
355 * @param length the length of value.
356 * @stable ICU 3.8
357 */
358U_STABLE void U_EXPORT2
359udatpg_setAppendItemFormat(UDateTimePatternGenerator *dtpg,
360 UDateTimePatternField field,
361 const UChar *value, int32_t length);
362
363/**
364 * Getter corresponding to setAppendItemFormat. Values below 0 or at or
365 * above UDATPG_FIELD_COUNT are illegal arguments.
366 *
367 * @param dtpg A pointer to UDateTimePatternGenerator.
368 * @param field UDateTimePatternField, such as UDATPG_ERA_FIELD
369 * @param pLength A pointer that will receive the length of appendItemFormat.
370 * @return appendItemFormat for field.
371 * @stable ICU 3.8
372 */
373U_STABLE const UChar * U_EXPORT2
374udatpg_getAppendItemFormat(const UDateTimePatternGenerator *dtpg,
375 UDateTimePatternField field,
376 int32_t *pLength);
377
378/**
379 * Set the name of field, eg "era" in English for ERA. These are only
380 * used if the corresponding AppendItemFormat is used, and if it contains a
381 * {2} variable.
382 * <p>
383 * This reflects the way that the CLDR data is organized.
384 *
385 * @param dtpg a pointer to UDateTimePatternGenerator.
386 * @param field UDateTimePatternField
387 * @param value name for the field.
388 * @param length the length of value.
389 * @stable ICU 3.8
390 */
391U_STABLE void U_EXPORT2
392udatpg_setAppendItemName(UDateTimePatternGenerator *dtpg,
393 UDateTimePatternField field,
394 const UChar *value, int32_t length);
395
396/**
397 * Getter corresponding to setAppendItemNames. Values below 0 or at or above
398 * UDATPG_FIELD_COUNT are illegal arguments.
399 *
400 * @param dtpg a pointer to UDateTimePatternGenerator.
401 * @param field UDateTimePatternField, such as UDATPG_ERA_FIELD
402 * @param pLength A pointer that will receive the length of the name for field.
403 * @return name for field
404 * @stable ICU 3.8
405 */
406U_STABLE const UChar * U_EXPORT2
407udatpg_getAppendItemName(const UDateTimePatternGenerator *dtpg,
408 UDateTimePatternField field,
409 int32_t *pLength);
410
411/**
412 * The DateTimeFormat is a message format pattern used to compose date and
413 * time patterns. The default pattern in the root locale is "{1} {0}", where
414 * {1} will be replaced by the date pattern and {0} will be replaced by the
415 * time pattern; however, other locales may specify patterns such as
416 * "{1}, {0}" or "{1} 'at' {0}", etc.
417 * <p>
418 * This is used when the input skeleton contains both date and time fields,
419 * but there is not a close match among the added patterns. For example,
420 * suppose that this object was created by adding "dd-MMM" and "hh:mm", and
421 * its DateTimeFormat is the default "{1} {0}". Then if the input skeleton
422 * is "MMMdhmm", there is not an exact match, so the input skeleton is
423 * broken up into two components "MMMd" and "hmm". There are close matches
424 * for those two skeletons, so the result is put together with this pattern,
425 * resulting in "d-MMM h:mm".
426 *
427 * @param dtpg a pointer to UDateTimePatternGenerator.
428 * @param dtFormat
429 * message format pattern, here {1} will be replaced by the date
430 * pattern and {0} will be replaced by the time pattern.
431 * @param length the length of dtFormat.
432 * @stable ICU 3.8
433 */
434U_STABLE void U_EXPORT2
435udatpg_setDateTimeFormat(const UDateTimePatternGenerator *dtpg,
436 const UChar *dtFormat, int32_t length);
437
438/**
439 * Getter corresponding to setDateTimeFormat.
440 * @param dtpg a pointer to UDateTimePatternGenerator.
441 * @param pLength A pointer that will receive the length of the format
442 * @return dateTimeFormat.
443 * @stable ICU 3.8
444 */
445U_STABLE const UChar * U_EXPORT2
446udatpg_getDateTimeFormat(const UDateTimePatternGenerator *dtpg,
447 int32_t *pLength);
448
449/**
450 * The decimal value is used in formatting fractions of seconds. If the
451 * skeleton contains fractional seconds, then this is used with the
452 * fractional seconds. For example, suppose that the input pattern is
453 * "hhmmssSSSS", and the best matching pattern internally is "H:mm:ss", and
454 * the decimal string is ",". Then the resulting pattern is modified to be
455 * "H:mm:ss,SSSS"
456 *
457 * @param dtpg a pointer to UDateTimePatternGenerator.
458 * @param decimal
459 * @param length the length of decimal.
460 * @stable ICU 3.8
461 */
462U_STABLE void U_EXPORT2
463udatpg_setDecimal(UDateTimePatternGenerator *dtpg,
464 const UChar *decimal, int32_t length);
465
466/**
467 * Getter corresponding to setDecimal.
468 *
469 * @param dtpg a pointer to UDateTimePatternGenerator.
470 * @param pLength A pointer that will receive the length of the decimal string.
471 * @return corresponding to the decimal point.
472 * @stable ICU 3.8
473 */
474U_STABLE const UChar * U_EXPORT2
475udatpg_getDecimal(const UDateTimePatternGenerator *dtpg,
476 int32_t *pLength);
477
478/**
479 * Adjusts the field types (width and subtype) of a pattern to match what is
480 * in a skeleton. That is, if you supply a pattern like "d-M H:m", and a
481 * skeleton of "MMMMddhhmm", then the input pattern is adjusted to be
482 * "dd-MMMM hh:mm". This is used internally to get the best match for the
483 * input skeleton, but can also be used externally.
484 *
485 * Note that this function uses a non-const UDateTimePatternGenerator:
486 * It uses a stateful pattern parser which is set up for each generator object,
487 * rather than creating one for each function call.
488 * Consecutive calls to this function do not affect each other,
489 * but this function cannot be used concurrently on a single generator object.
490 *
491 * @param dtpg a pointer to UDateTimePatternGenerator.
492 * @param pattern Input pattern
493 * @param patternLength the length of input pattern.
494 * @param skeleton
495 * @param skeletonLength the length of input skeleton.
496 * @param dest pattern adjusted to match the skeleton fields widths and subtypes.
497 * @param destCapacity the capacity of dest.
498 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
499 * failure before the function call.
500 * @return the length of dest.
501 * @stable ICU 3.8
502 */
503U_STABLE int32_t U_EXPORT2
504udatpg_replaceFieldTypes(UDateTimePatternGenerator *dtpg,
505 const UChar *pattern, int32_t patternLength,
506 const UChar *skeleton, int32_t skeletonLength,
507 UChar *dest, int32_t destCapacity,
508 UErrorCode *pErrorCode);
509
510/**
511 * Adjusts the field types (width and subtype) of a pattern to match what is
512 * in a skeleton. That is, if you supply a pattern like "d-M H:m", and a
513 * skeleton of "MMMMddhhmm", then the input pattern is adjusted to be
514 * "dd-MMMM hh:mm". This is used internally to get the best match for the
515 * input skeleton, but can also be used externally.
516 *
517 * Note that this function uses a non-const UDateTimePatternGenerator:
518 * It uses a stateful pattern parser which is set up for each generator object,
519 * rather than creating one for each function call.
520 * Consecutive calls to this function do not affect each other,
521 * but this function cannot be used concurrently on a single generator object.
522 *
523 * @param dtpg a pointer to UDateTimePatternGenerator.
524 * @param pattern Input pattern
525 * @param patternLength the length of input pattern.
526 * @param skeleton
527 * @param skeletonLength the length of input skeleton.
528 * @param options
529 * Options controlling whether the length of specified fields in the
530 * pattern are adjusted to match those in the skeleton (when this
531 * would not happen otherwise). For default behavior, use
532 * UDATPG_MATCH_NO_OPTIONS.
533 * @param dest pattern adjusted to match the skeleton fields widths and subtypes.
534 * @param destCapacity the capacity of dest.
535 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
536 * failure before the function call.
537 * @return the length of dest.
538 * @stable ICU 4.4
539 */
540U_STABLE int32_t U_EXPORT2
541udatpg_replaceFieldTypesWithOptions(UDateTimePatternGenerator *dtpg,
542 const UChar *pattern, int32_t patternLength,
543 const UChar *skeleton, int32_t skeletonLength,
544 UDateTimePatternMatchOptions options,
545 UChar *dest, int32_t destCapacity,
546 UErrorCode *pErrorCode);
547
548/**
549 * Return a UEnumeration list of all the skeletons in canonical form.
550 * Call udatpg_getPatternForSkeleton() to get the corresponding pattern.
551 *
552 * @param dtpg a pointer to UDateTimePatternGenerator.
553 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
554 * failure before the function call
555 * @return a UEnumeration list of all the skeletons
556 * The caller must close the object.
557 * @stable ICU 3.8
558 */
559U_STABLE UEnumeration * U_EXPORT2
560udatpg_openSkeletons(const UDateTimePatternGenerator *dtpg, UErrorCode *pErrorCode);
561
562/**
563 * Return a UEnumeration list of all the base skeletons in canonical form.
564 *
565 * @param dtpg a pointer to UDateTimePatternGenerator.
566 * @param pErrorCode a pointer to the UErrorCode which must not indicate a
567 * failure before the function call.
568 * @return a UEnumeration list of all the base skeletons
569 * The caller must close the object.
570 * @stable ICU 3.8
571 */
572U_STABLE UEnumeration * U_EXPORT2
573udatpg_openBaseSkeletons(const UDateTimePatternGenerator *dtpg, UErrorCode *pErrorCode);
574
575/**
576 * Get the pattern corresponding to a given skeleton.
577 *
578 * @param dtpg a pointer to UDateTimePatternGenerator.
579 * @param skeleton
580 * @param skeletonLength pointer to the length of skeleton.
581 * @param pLength pointer to the length of return pattern.
582 * @return pattern corresponding to a given skeleton.
583 * @stable ICU 3.8
584 */
585U_STABLE const UChar * U_EXPORT2
586udatpg_getPatternForSkeleton(const UDateTimePatternGenerator *dtpg,
587 const UChar *skeleton, int32_t skeletonLength,
588 int32_t *pLength);
589
590#endif
591