Bug Summary

File:root/firefox-clang/intl/icu/source/i18n/dtptngen.cpp
Warning:line 2162, column 13
Value stored to 'curElem' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -O2 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name dtptngen.cpp -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -ffp-contract=off -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/config/external/icu/i18n -fcoverage-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/config/external/icu/i18n -resource-dir /usr/lib/llvm-23/lib/clang/23 -include /root/firefox-clang/config/gcc_hidden.h -include /root/firefox-clang/obj-x86_64-pc-linux-gnu/mozilla-config.h -D _GLIBCXX_ASSERTIONS=1 -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/system_wrappers -U _FORTIFY_SOURCE -D _FORTIFY_SOURCE=2 -D DEBUG=1 -D U_I18N_IMPLEMENTATION -D _LIBCPP_DISABLE_DEPRECATION_WARNINGS -D U_USING_ICU_NAMESPACE=0 -D U_NO_DEFAULT_INCLUDE_UTF_HEADERS=1 -D U_HIDE_OBSOLETE_UTF_OLD_H=1 -D UCONFIG_NO_LEGACY_CONVERSION -D UCONFIG_NO_TRANSLITERATION -D UCONFIG_NO_REGULAR_EXPRESSIONS -D UCONFIG_NO_BREAK_ITERATION -D UCONFIG_NO_IDNA -D UCONFIG_NO_MF2 -D UCONFIG_NO_NORMALIZATION -D UCONFIG_NO_COLLATION -D U_CHARSET_IS_UTF8 -D UNISTR_FROM_CHAR_EXPLICIT=explicit -D UNISTR_FROM_STRING_EXPLICIT=explicit -D U_ENABLE_DYLOAD=0 -D U_DEBUG=1 -I /root/firefox-clang/config/external/icu/i18n -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/config/external/icu/i18n -I /root/firefox-clang/intl/icu/source/common -I /root/firefox-clang/mfbt/double-conversion -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nspr -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nss -D MOZILLA_CLIENT -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/c++/16 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/x86_64-linux-gnu/c++/16 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../include/c++/16/backward -internal-isystem /usr/lib/llvm-23/lib/clang/23/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/16/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wno-error=pessimizing-move -Wno-error=large-by-value-copy=128 -Wno-error=implicit-int-float-conversion -Wno-error=thread-safety-analysis -Wno-error=tautological-type-limit-compare -Wno-invalid-offsetof -Wno-range-loop-analysis -Wno-deprecated-anon-enum-enum-conversion -Wno-deprecated-enum-enum-conversion -Wno-inline-new-delete -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wno-psabi -Wno-error=builtin-macro-redefined -Wno-vla-cxx-extension -Wno-unknown-warning-option -Wno-character-conversion -Wno-comma -Wno-implicit-const-int-float-conversion -Wno-macro-redefined -Wno-microsoft-include -Wno-tautological-unsigned-enum-zero-compare -Wno-unreachable-code-loop-increment -Wno-unreachable-code-return -std=gnu++20 -fdeprecated-macro -ferror-limit 19 -fstrict-flex-arrays=1 -stack-protector 2 -fstack-clash-protection -ftrivial-auto-var-init=pattern -fgnuc-version=4.2.1 -fno-implicit-modules -fskip-odr-check-in-gmf -fno-sized-deallocation -fno-aligned-allocation -fdiagnostics-absolute-paths -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -mllvm -dwarf-linkage-names=Abstract -faddrsig -fdwarf2-cfi-asm -o /tmp/scan-build-2026-09-01-224014-2642839-1 -x c++ /root/firefox-clang/intl/icu/source/i18n/dtptngen.cpp
1// © 2016 and later: Unicode, Inc. and others.
2// License & terms of use: http://www.unicode.org/copyright.html
3/*
4*******************************************************************************
5* Copyright (C) 2007-2016, International Business Machines Corporation and
6* others. All Rights Reserved.
7*******************************************************************************
8*
9* File DTPTNGEN.CPP
10*
11*******************************************************************************
12*/
13
14#include "unicode/utypes.h"
15#if !UCONFIG_NO_FORMATTING0
16
17#include "unicode/datefmt.h"
18#include "unicode/decimfmt.h"
19#include "unicode/dtfmtsym.h"
20#include "unicode/dtptngen.h"
21#include "unicode/localpointer.h"
22#include "unicode/simpleformatter.h"
23#include "unicode/smpdtfmt.h"
24#include "unicode/udat.h"
25#include "unicode/udatpg.h"
26#include "unicode/uniset.h"
27#include "unicode/uloc.h"
28#include "unicode/ures.h"
29#include "unicode/ustring.h"
30#include "unicode/rep.h"
31#include "unicode/region.h"
32#include "cpputils.h"
33#include "mutex.h"
34#include "umutex.h"
35#include "cmemory.h"
36#include "cstring.h"
37#include "locbased.h"
38#include "hash.h"
39#include "uhash.h"
40#include "ulocimp.h"
41#include "uresimp.h"
42#include "ulocimp.h"
43#include "dtptngen_impl.h"
44#include "ucln_in.h"
45#include "charstr.h"
46#include "uassert.h"
47
48#if U_CHARSET_FAMILY0==U_EBCDIC_FAMILY1
49/**
50 * If we are on EBCDIC, use an iterator which will
51 * traverse the bundles in ASCII order.
52 */
53#define U_USE_ASCII_BUNDLE_ITERATOR
54#define U_SORT_ASCII_BUNDLE_ITERATOR
55#endif
56
57#if defined(U_USE_ASCII_BUNDLE_ITERATOR)
58
59#include "unicode/ustring.h"
60#include "uarrsort.h"
61
62struct UResAEntry {
63 char16_t *key;
64 UResourceBundle *item;
65};
66
67struct UResourceBundleAIterator {
68 UResourceBundle *bund;
69 UResAEntry *entries;
70 int32_t num;
71 int32_t cursor;
72};
73
74/* Must be C linkage to pass function pointer to the sort function */
75
76U_CDECL_BEGINextern "C" {
77
78static int32_t U_CALLCONV
79ures_a_codepointSort(const void *context, const void *left, const void *right) {
80 //CompareContext *cmp=(CompareContext *)context;
81 return u_strcmp(((const UResAEntry *)left)->key,
82 ((const UResAEntry *)right)->key);
83}
84
85U_CDECL_END}
86
87static void ures_a_open(UResourceBundleAIterator *aiter, UResourceBundle *bund, UErrorCode *status) {
88 if(U_FAILURE(*status)) {
89 return;
90 }
91 aiter->bund = bund;
92 aiter->num = ures_getSize(aiter->bund);
93 aiter->cursor = 0;
94#if !defined(U_SORT_ASCII_BUNDLE_ITERATOR)
95 aiter->entries = nullptr;
96#else
97 aiter->entries = (UResAEntry*)uprv_malloc(sizeof(UResAEntry)*aiter->num);
98 for(int i=0;i<aiter->num;i++) {
99 aiter->entries[i].item = ures_getByIndex(aiter->bund, i, nullptr, status);
100 const char *akey = ures_getKey(aiter->entries[i].item);
101 int32_t len = uprv_strlen(akey):: strlen(akey)+1;
102 aiter->entries[i].key = (char16_t*)uprv_malloc(len*sizeof(char16_t));
103 u_charsToUChars(akey, aiter->entries[i].key, len);
104 }
105 uprv_sortArray(aiter->entries, aiter->num, sizeof(UResAEntry), ures_a_codepointSort, nullptr, true, status);
106#endif
107}
108
109static void ures_a_close(UResourceBundleAIterator *aiter) {
110#if defined(U_SORT_ASCII_BUNDLE_ITERATOR)
111 for(int i=0;i<aiter->num;i++) {
112 uprv_free(aiter->entries[i].key);
113 ures_close(aiter->entries[i].item);
114 }
115#endif
116}
117
118static const char16_t *ures_a_getNextString(UResourceBundleAIterator *aiter, int32_t *len, const char **key, UErrorCode *err) {
119#if !defined(U_SORT_ASCII_BUNDLE_ITERATOR)
120 return ures_getNextString(aiter->bund, len, key, err);
121#else
122 if(U_FAILURE(*err)) return nullptr;
123 UResourceBundle *item = aiter->entries[aiter->cursor].item;
124 const char16_t* ret = ures_getString(item, len, err);
125 *key = ures_getKey(item);
126 aiter->cursor++;
127 return ret;
128#endif
129}
130
131
132#endif
133
134
135U_NAMESPACE_BEGINnamespace icu_78 {
136
137// *****************************************************************************
138// class DateTimePatternGenerator
139// *****************************************************************************
140static const char16_t Canonical_Items[] = {
141 // GyQMwWEDFdaHmsSv
142 CAP_G((char16_t)0x0047), LOW_Y((char16_t)0x0079), CAP_Q((char16_t)0x0051), CAP_M((char16_t)0x004D), LOW_W((char16_t)0x0077), CAP_W((char16_t)0x0057), CAP_E((char16_t)0x0045),
143 CAP_D((char16_t)0x0044), CAP_F((char16_t)0x0046), LOW_D((char16_t)0x0064), LOW_A((char16_t)0x0061), // The UDATPG_x_FIELD constants and these fields have a different order than in ICU4J
144 CAP_H((char16_t)0x0048), LOW_M((char16_t)0x006D), LOW_S((char16_t)0x0073), CAP_S((char16_t)0x0053), LOW_V((char16_t)0x0076), 0
145};
146
147static const dtTypeElem dtTypes[] = {
148 // patternChar, field, type, minLen, weight
149 {CAP_G((char16_t)0x0047), UDATPG_ERA_FIELD, DT_SHORT-0x103, 1, 3,},
150 {CAP_G((char16_t)0x0047), UDATPG_ERA_FIELD, DT_LONG-0x104, 4, 0},
151 {CAP_G((char16_t)0x0047), UDATPG_ERA_FIELD, DT_NARROW-0x101, 5, 0},
152
153 {LOW_Y((char16_t)0x0079), UDATPG_YEAR_FIELD, DT_NUMERIC0x100, 1, 20},
154 {CAP_Y((char16_t)0x0059), UDATPG_YEAR_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 20},
155 {LOW_U((char16_t)0x0075), UDATPG_YEAR_FIELD, DT_NUMERIC0x100 + 2*DT_DELTA0x10, 1, 20},
156 {LOW_R((char16_t)0x0072), UDATPG_YEAR_FIELD, DT_NUMERIC0x100 + 3*DT_DELTA0x10, 1, 20},
157 {CAP_U((char16_t)0x0055), UDATPG_YEAR_FIELD, DT_SHORT-0x103, 1, 3},
158 {CAP_U((char16_t)0x0055), UDATPG_YEAR_FIELD, DT_LONG-0x104, 4, 0},
159 {CAP_U((char16_t)0x0055), UDATPG_YEAR_FIELD, DT_NARROW-0x101, 5, 0},
160
161 {CAP_Q((char16_t)0x0051), UDATPG_QUARTER_FIELD, DT_NUMERIC0x100, 1, 2},
162 {CAP_Q((char16_t)0x0051), UDATPG_QUARTER_FIELD, DT_SHORT-0x103, 3, 0},
163 {CAP_Q((char16_t)0x0051), UDATPG_QUARTER_FIELD, DT_LONG-0x104, 4, 0},
164 {CAP_Q((char16_t)0x0051), UDATPG_QUARTER_FIELD, DT_NARROW-0x101, 5, 0},
165 {LOW_Q((char16_t)0x0071), UDATPG_QUARTER_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 2},
166 {LOW_Q((char16_t)0x0071), UDATPG_QUARTER_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 3, 0},
167 {LOW_Q((char16_t)0x0071), UDATPG_QUARTER_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
168 {LOW_Q((char16_t)0x0071), UDATPG_QUARTER_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 5, 0},
169
170 {CAP_M((char16_t)0x004D), UDATPG_MONTH_FIELD, DT_NUMERIC0x100, 1, 2},
171 {CAP_M((char16_t)0x004D), UDATPG_MONTH_FIELD, DT_SHORT-0x103, 3, 0},
172 {CAP_M((char16_t)0x004D), UDATPG_MONTH_FIELD, DT_LONG-0x104, 4, 0},
173 {CAP_M((char16_t)0x004D), UDATPG_MONTH_FIELD, DT_NARROW-0x101, 5, 0},
174 {CAP_L((char16_t)0x004C), UDATPG_MONTH_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 2},
175 {CAP_L((char16_t)0x004C), UDATPG_MONTH_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 3, 0},
176 {CAP_L((char16_t)0x004C), UDATPG_MONTH_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
177 {CAP_L((char16_t)0x004C), UDATPG_MONTH_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 5, 0},
178 {LOW_L((char16_t)0x006C), UDATPG_MONTH_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 1},
179
180 {LOW_W((char16_t)0x0077), UDATPG_WEEK_OF_YEAR_FIELD, DT_NUMERIC0x100, 1, 2},
181
182 {CAP_W((char16_t)0x0057), UDATPG_WEEK_OF_MONTH_FIELD, DT_NUMERIC0x100, 1, 0},
183
184 {CAP_E((char16_t)0x0045), UDATPG_WEEKDAY_FIELD, DT_SHORT-0x103, 1, 3},
185 {CAP_E((char16_t)0x0045), UDATPG_WEEKDAY_FIELD, DT_LONG-0x104, 4, 0},
186 {CAP_E((char16_t)0x0045), UDATPG_WEEKDAY_FIELD, DT_NARROW-0x101, 5, 0},
187 {CAP_E((char16_t)0x0045), UDATPG_WEEKDAY_FIELD, DT_SHORTER-0x102, 6, 0},
188 {LOW_C((char16_t)0x0063), UDATPG_WEEKDAY_FIELD, DT_NUMERIC0x100 + 2*DT_DELTA0x10, 1, 2},
189 {LOW_C((char16_t)0x0063), UDATPG_WEEKDAY_FIELD, DT_SHORT-0x103 - 2*DT_DELTA0x10, 3, 0},
190 {LOW_C((char16_t)0x0063), UDATPG_WEEKDAY_FIELD, DT_LONG-0x104 - 2*DT_DELTA0x10, 4, 0},
191 {LOW_C((char16_t)0x0063), UDATPG_WEEKDAY_FIELD, DT_NARROW-0x101 - 2*DT_DELTA0x10, 5, 0},
192 {LOW_C((char16_t)0x0063), UDATPG_WEEKDAY_FIELD, DT_SHORTER-0x102 - 2*DT_DELTA0x10, 6, 0},
193 {LOW_E((char16_t)0x0065), UDATPG_WEEKDAY_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 2}, // LOW_E is currently not used in CLDR data, should not be canonical
194 {LOW_E((char16_t)0x0065), UDATPG_WEEKDAY_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 3, 0},
195 {LOW_E((char16_t)0x0065), UDATPG_WEEKDAY_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
196 {LOW_E((char16_t)0x0065), UDATPG_WEEKDAY_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 5, 0},
197 {LOW_E((char16_t)0x0065), UDATPG_WEEKDAY_FIELD, DT_SHORTER-0x102 - DT_DELTA0x10, 6, 0},
198
199 {LOW_D((char16_t)0x0064), UDATPG_DAY_FIELD, DT_NUMERIC0x100, 1, 2},
200 {LOW_G((char16_t)0x0067), UDATPG_DAY_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 20}, // really internal use, so we don't care
201
202 {CAP_D((char16_t)0x0044), UDATPG_DAY_OF_YEAR_FIELD, DT_NUMERIC0x100, 1, 3},
203
204 {CAP_F((char16_t)0x0046), UDATPG_DAY_OF_WEEK_IN_MONTH_FIELD, DT_NUMERIC0x100, 1, 0},
205
206 {LOW_A((char16_t)0x0061), UDATPG_DAYPERIOD_FIELD, DT_SHORT-0x103, 1, 3},
207 {LOW_A((char16_t)0x0061), UDATPG_DAYPERIOD_FIELD, DT_LONG-0x104, 4, 0},
208 {LOW_A((char16_t)0x0061), UDATPG_DAYPERIOD_FIELD, DT_NARROW-0x101, 5, 0},
209 {LOW_B((char16_t)0x0062), UDATPG_DAYPERIOD_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 1, 3},
210 {LOW_B((char16_t)0x0062), UDATPG_DAYPERIOD_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
211 {LOW_B((char16_t)0x0062), UDATPG_DAYPERIOD_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 5, 0},
212 // b needs to be closer to a than to B, so we make this 3*DT_DELTA
213 {CAP_B((char16_t)0x0042), UDATPG_DAYPERIOD_FIELD, DT_SHORT-0x103 - 3*DT_DELTA0x10, 1, 3},
214 {CAP_B((char16_t)0x0042), UDATPG_DAYPERIOD_FIELD, DT_LONG-0x104 - 3*DT_DELTA0x10, 4, 0},
215 {CAP_B((char16_t)0x0042), UDATPG_DAYPERIOD_FIELD, DT_NARROW-0x101 - 3*DT_DELTA0x10, 5, 0},
216
217 {CAP_H((char16_t)0x0048), UDATPG_HOUR_FIELD, DT_NUMERIC0x100 + 10*DT_DELTA0x10, 1, 2}, // 24 hour
218 {LOW_K((char16_t)0x006B), UDATPG_HOUR_FIELD, DT_NUMERIC0x100 + 11*DT_DELTA0x10, 1, 2}, // 24 hour
219 {LOW_H((char16_t)0x0068), UDATPG_HOUR_FIELD, DT_NUMERIC0x100, 1, 2}, // 12 hour
220 {CAP_K((char16_t)0x004B), UDATPG_HOUR_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 2}, // 12 hour
221 // The C code has had versions of the following 3, keep & update. Should not need these, but...
222 // Without these, certain tests using e.g. staticGetSkeleton fail because j/J in patterns
223 // get skipped instead of mapped to the right hour chars, for example in
224 // DateFormatTest::TestPatternFromSkeleton
225 // IntlTestDateTimePatternGeneratorAPI:: testStaticGetSkeleton
226 // DateIntervalFormatTest::testTicket11985
227 // Need to investigate better handling of jJC replacement e.g. in staticGetSkeleton.
228 {CAP_J((char16_t)0x004A), UDATPG_HOUR_FIELD, DT_NUMERIC0x100 + 5*DT_DELTA0x10, 1, 2}, // 12/24 hour no AM/PM
229 {LOW_J((char16_t)0x006A), UDATPG_HOUR_FIELD, DT_NUMERIC0x100 + 6*DT_DELTA0x10, 1, 6}, // 12/24 hour
230 {CAP_C((char16_t)0x0043), UDATPG_HOUR_FIELD, DT_NUMERIC0x100 + 7*DT_DELTA0x10, 1, 6}, // 12/24 hour with preferred dayPeriods for 12
231
232 {LOW_M((char16_t)0x006D), UDATPG_MINUTE_FIELD, DT_NUMERIC0x100, 1, 2},
233
234 {LOW_S((char16_t)0x0073), UDATPG_SECOND_FIELD, DT_NUMERIC0x100, 1, 2},
235 {CAP_A((char16_t)0x0041), UDATPG_SECOND_FIELD, DT_NUMERIC0x100 + DT_DELTA0x10, 1, 1000},
236
237 {CAP_S((char16_t)0x0053), UDATPG_FRACTIONAL_SECOND_FIELD, DT_NUMERIC0x100, 1, 1000},
238
239 {LOW_V((char16_t)0x0076), UDATPG_ZONE_FIELD, DT_SHORT-0x103 - 2*DT_DELTA0x10, 1, 0},
240 {LOW_V((char16_t)0x0076), UDATPG_ZONE_FIELD, DT_LONG-0x104 - 2*DT_DELTA0x10, 4, 0},
241 {LOW_Z((char16_t)0x007A), UDATPG_ZONE_FIELD, DT_SHORT-0x103, 1, 3},
242 {LOW_Z((char16_t)0x007A), UDATPG_ZONE_FIELD, DT_LONG-0x104, 4, 0},
243 {CAP_Z((char16_t)0x005A), UDATPG_ZONE_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 1, 3},
244 {CAP_Z((char16_t)0x005A), UDATPG_ZONE_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
245 {CAP_Z((char16_t)0x005A), UDATPG_ZONE_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 5, 0},
246 {CAP_O((char16_t)0x004F), UDATPG_ZONE_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 1, 0},
247 {CAP_O((char16_t)0x004F), UDATPG_ZONE_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
248 {CAP_V((char16_t)0x0056), UDATPG_ZONE_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 1, 0},
249 {CAP_V((char16_t)0x0056), UDATPG_ZONE_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 2, 0},
250 {CAP_V((char16_t)0x0056), UDATPG_ZONE_FIELD, DT_LONG-0x104-1 - DT_DELTA0x10, 3, 0},
251 {CAP_V((char16_t)0x0056), UDATPG_ZONE_FIELD, DT_LONG-0x104-2 - DT_DELTA0x10, 4, 0},
252 {CAP_X((char16_t)0x0058), UDATPG_ZONE_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 1, 0},
253 {CAP_X((char16_t)0x0058), UDATPG_ZONE_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 2, 0},
254 {CAP_X((char16_t)0x0058), UDATPG_ZONE_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
255 {LOW_X((char16_t)0x0078), UDATPG_ZONE_FIELD, DT_NARROW-0x101 - DT_DELTA0x10, 1, 0},
256 {LOW_X((char16_t)0x0078), UDATPG_ZONE_FIELD, DT_SHORT-0x103 - DT_DELTA0x10, 2, 0},
257 {LOW_X((char16_t)0x0078), UDATPG_ZONE_FIELD, DT_LONG-0x104 - DT_DELTA0x10, 4, 0},
258
259 {0, UDATPG_FIELD_COUNT, 0, 0, 0} , // last row of dtTypes[]
260 };
261
262static const char* const CLDR_FIELD_APPEND[] = {
263 "Era", "Year", "Quarter", "Month", "Week", "*", "Day-Of-Week",
264 "*", "*", "Day", "DayPeriod", // The UDATPG_x_FIELD constants and these fields have a different order than in ICU4J
265 "Hour", "Minute", "Second", "FractionalSecond", "Timezone"
266};
267
268static const char* const CLDR_FIELD_NAME[UDATPG_FIELD_COUNT] = {
269 "era", "year", "quarter", "month", "week", "weekOfMonth", "weekday",
270 "dayOfYear", "weekdayOfMonth", "day", "dayperiod", // The UDATPG_x_FIELD constants and these fields have a different order than in ICU4J
271 "hour", "minute", "second", "fractionalSecond", "zone"
272};
273
274static const char* const CLDR_FIELD_WIDTH[] = { // [UDATPG_WIDTH_COUNT]
275 "", "-short", "-narrow"
276};
277
278static constexpr UDateTimePGDisplayWidth UDATPG_WIDTH_APPENDITEM = UDATPG_WIDE;
279static constexpr int32_t UDATPG_FIELD_KEY_MAX = 24; // max length of CLDR field tag (type + width)
280
281// For appendItems
282static const char16_t UDATPG_ItemFormat[]= {0x7B, 0x30, 0x7D, 0x20, 0x251C, 0x7B, 0x32, 0x7D, 0x3A,
283 0x20, 0x7B, 0x31, 0x7D, 0x2524, 0}; // {0} \u251C{2}: {1}\u2524
284
285//static const char16_t repeatedPatterns[6]={CAP_G, CAP_E, LOW_Z, LOW_V, CAP_Q, 0}; // "GEzvQ"
286
287static const char DT_DateTimePatternsTag[]="DateTimePatterns";
288static const char DT_DateAtTimePatternsTag[]="DateTimePatterns%atTime";
289static const char DT_DateTimeCalendarTag[]="calendar";
290static const char DT_DateTimeGregorianTag[]="gregorian";
291static const char DT_DateTimeAppendItemsTag[]="appendItems";
292static const char DT_DateTimeFieldsTag[]="fields";
293static const char DT_DateTimeAvailableFormatsTag[]="availableFormats";
294//static const UnicodeString repeatedPattern=UnicodeString(repeatedPatterns);
295
296UOBJECT_DEFINE_RTTI_IMPLEMENTATION(DateTimePatternGenerator)UClassID DateTimePatternGenerator::getStaticClassID() { static
char classID = 0; return (UClassID)&classID; } UClassID DateTimePatternGenerator
::getDynamicClassID() const { return DateTimePatternGenerator
::getStaticClassID(); }
297UOBJECT_DEFINE_RTTI_IMPLEMENTATION(DTSkeletonEnumeration)UClassID DTSkeletonEnumeration::getStaticClassID() { static char
classID = 0; return (UClassID)&classID; } UClassID DTSkeletonEnumeration
::getDynamicClassID() const { return DTSkeletonEnumeration::getStaticClassID
(); }
298UOBJECT_DEFINE_RTTI_IMPLEMENTATION(DTRedundantEnumeration)UClassID DTRedundantEnumeration::getStaticClassID() { static char
classID = 0; return (UClassID)&classID; } UClassID DTRedundantEnumeration
::getDynamicClassID() const { return DTRedundantEnumeration::
getStaticClassID(); }
299
300DateTimePatternGenerator* U_EXPORT2
301DateTimePatternGenerator::createInstance(UErrorCode& status) {
302 return createInstance(Locale::getDefault(), status);
303}
304
305DateTimePatternGenerator* U_EXPORT2
306DateTimePatternGenerator::createInstance(const Locale& locale, UErrorCode& status) {
307 if (U_FAILURE(status)) {
308 return nullptr;
309 }
310 LocalPointer<DateTimePatternGenerator> result(
311 new DateTimePatternGenerator(locale, status), status);
312 return U_SUCCESS(status) ? result.orphan() : nullptr;
313}
314
315DateTimePatternGenerator* U_EXPORT2
316DateTimePatternGenerator::createInstanceNoStdPat(const Locale& locale, UErrorCode& status) {
317 if (U_FAILURE(status)) {
318 return nullptr;
319 }
320 LocalPointer<DateTimePatternGenerator> result(
321 new DateTimePatternGenerator(locale, status, true), status);
322 return U_SUCCESS(status) ? result.orphan() : nullptr;
323}
324
325DateTimePatternGenerator* U_EXPORT2
326DateTimePatternGenerator::createEmptyInstance(UErrorCode& status) {
327 if (U_FAILURE(status)) {
328 return nullptr;
329 }
330 LocalPointer<DateTimePatternGenerator> result(
331 new DateTimePatternGenerator(status), status);
332 return U_SUCCESS(status) ? result.orphan() : nullptr;
333}
334
335DateTimePatternGenerator::DateTimePatternGenerator(UErrorCode &status) :
336 skipMatcher(nullptr),
337 fAvailableFormatKeyHash(nullptr),
338 fDefaultHourFormatChar(0),
339 internalErrorCode(U_ZERO_ERROR)
340{
341 fp = new FormatParser();
342 dtMatcher = new DateTimeMatcher();
343 distanceInfo = new DistanceInfo();
344 patternMap = new PatternMap();
345 if (fp == nullptr || dtMatcher == nullptr || distanceInfo == nullptr || patternMap == nullptr) {
346 internalErrorCode = status = U_MEMORY_ALLOCATION_ERROR;
347 }
348}
349
350DateTimePatternGenerator::DateTimePatternGenerator(const Locale& locale, UErrorCode &status, UBool skipStdPatterns) :
351 skipMatcher(nullptr),
352 fAvailableFormatKeyHash(nullptr),
353 fDefaultHourFormatChar(0),
354 internalErrorCode(U_ZERO_ERROR)
355{
356 fp = new FormatParser();
357 dtMatcher = new DateTimeMatcher();
358 distanceInfo = new DistanceInfo();
359 patternMap = new PatternMap();
360 if (fp == nullptr || dtMatcher == nullptr || distanceInfo == nullptr || patternMap == nullptr) {
361 internalErrorCode = status = U_MEMORY_ALLOCATION_ERROR;
362 }
363 else {
364 initData(locale, status, skipStdPatterns);
365 }
366}
367
368DateTimePatternGenerator::DateTimePatternGenerator(const DateTimePatternGenerator& other) :
369 UObject(),
370 skipMatcher(nullptr),
371 fAvailableFormatKeyHash(nullptr),
372 fDefaultHourFormatChar(0),
373 internalErrorCode(U_ZERO_ERROR)
374{
375 fp = new FormatParser();
376 dtMatcher = new DateTimeMatcher();
377 distanceInfo = new DistanceInfo();
378 patternMap = new PatternMap();
379 if (fp == nullptr || dtMatcher == nullptr || distanceInfo == nullptr || patternMap == nullptr) {
380 internalErrorCode = U_MEMORY_ALLOCATION_ERROR;
381 }
382 *this=other;
383}
384
385DateTimePatternGenerator&
386DateTimePatternGenerator::operator=(const DateTimePatternGenerator& other) {
387 // reflexive case
388 if (&other == this) {
389 return *this;
390 }
391 internalErrorCode = other.internalErrorCode;
392 pLocale = other.pLocale;
393 fDefaultHourFormatChar = other.fDefaultHourFormatChar;
394 *fp = *(other.fp);
395 dtMatcher->copyFrom(other.dtMatcher->skeleton);
396 *distanceInfo = *(other.distanceInfo);
397 for (int32_t style = UDAT_FULL; style <= UDAT_SHORT; style++) {
398 dateTimeFormat[style] = other.dateTimeFormat[style];
399 }
400 decimal = other.decimal;
401 for (int32_t style = UDAT_FULL; style <= UDAT_SHORT; style++) {
402 dateTimeFormat[style].getTerminatedBuffer(); // NUL-terminate for the C API.
403 }
404 decimal.getTerminatedBuffer();
405 delete skipMatcher;
406 if ( other.skipMatcher == nullptr ) {
407 skipMatcher = nullptr;
408 }
409 else {
410 skipMatcher = new DateTimeMatcher(*other.skipMatcher);
411 if (skipMatcher == nullptr)
412 {
413 internalErrorCode = U_MEMORY_ALLOCATION_ERROR;
414 return *this;
415 }
416 }
417 for (int32_t i=0; i< UDATPG_FIELD_COUNT; ++i ) {
418 appendItemFormats[i] = other.appendItemFormats[i];
419 appendItemFormats[i].getTerminatedBuffer(); // NUL-terminate for the C API.
420 for (int32_t j=0; j< UDATPG_WIDTH_COUNT; ++j ) {
421 fieldDisplayNames[i][j] = other.fieldDisplayNames[i][j];
422 fieldDisplayNames[i][j].getTerminatedBuffer(); // NUL-terminate for the C API.
423 }
424 }
425 patternMap->copyFrom(*other.patternMap, internalErrorCode);
426 copyHashtable(other.fAvailableFormatKeyHash, internalErrorCode);
427 return *this;
428}
429
430
431bool
432DateTimePatternGenerator::operator==(const DateTimePatternGenerator& other) const {
433 if (this == &other) {
434 return true;
435 }
436 if ((pLocale==other.pLocale) && (patternMap->equals(*other.patternMap)) &&
437 (decimal==other.decimal)) {
438 for (int32_t style = UDAT_FULL; style <= UDAT_SHORT; style++) {
439 if (dateTimeFormat[style] != other.dateTimeFormat[style]) {
440 return false;
441 }
442 }
443 for ( int32_t i=0 ; i<UDATPG_FIELD_COUNT; ++i ) {
444 if (appendItemFormats[i] != other.appendItemFormats[i]) {
445 return false;
446 }
447 for (int32_t j=0; j< UDATPG_WIDTH_COUNT; ++j ) {
448 if (fieldDisplayNames[i][j] != other.fieldDisplayNames[i][j]) {
449 return false;
450 }
451 }
452 }
453 return true;
454 }
455 else {
456 return false;
457 }
458}
459
460bool
461DateTimePatternGenerator::operator!=(const DateTimePatternGenerator& other) const {
462 return !operator==(other);
463}
464
465DateTimePatternGenerator::~DateTimePatternGenerator() {
466 delete fAvailableFormatKeyHash;
467 delete fp;
468 delete dtMatcher;
469 delete distanceInfo;
470 delete patternMap;
471 delete skipMatcher;
472}
473
474namespace {
475
476UInitOnce initOnce {};
477UHashtable *localeToAllowedHourFormatsMap = nullptr;
478
479// Value deleter for hashmap.
480U_CFUNCextern "C" void U_CALLCONV deleteAllowedHourFormats(void *ptr) {
481 uprv_free(ptr);
482}
483
484// Close hashmap at cleanup.
485U_CFUNCextern "C" UBool U_CALLCONV allowedHourFormatsCleanup() {
486 uhash_close(localeToAllowedHourFormatsMap);
487 return true;
488}
489
490enum AllowedHourFormat{
491 ALLOWED_HOUR_FORMAT_UNKNOWN = -1,
492 ALLOWED_HOUR_FORMAT_h,
493 ALLOWED_HOUR_FORMAT_H,
494 ALLOWED_HOUR_FORMAT_K, // Added ICU-20383, used by JP
495 ALLOWED_HOUR_FORMAT_k, // Added ICU-20383, not currently used
496 ALLOWED_HOUR_FORMAT_hb,
497 ALLOWED_HOUR_FORMAT_hB,
498 ALLOWED_HOUR_FORMAT_Kb, // Added ICU-20383, not currently used
499 ALLOWED_HOUR_FORMAT_KB, // Added ICU-20383, not currently used
500 // ICU-20383 The following are unlikely and not currently used
501 ALLOWED_HOUR_FORMAT_Hb,
502 ALLOWED_HOUR_FORMAT_HB
503};
504
505} // namespace
506
507void
508DateTimePatternGenerator::initData(const Locale& locale, UErrorCode &status, UBool skipStdPatterns) {
509 //const char *baseLangName = locale.getBaseName(); // unused
510 if (U_FAILURE(status)) { return; }
511 if (locale.isBogus()) {
512 status = U_ILLEGAL_ARGUMENT_ERROR;
513 return;
514 }
515
516 skipMatcher = nullptr;
517 fAvailableFormatKeyHash=nullptr;
518 addCanonicalItems(status);
519 if (!skipStdPatterns) { // skip to prevent circular dependency when called from SimpleDateFormat::construct
520 addICUPatterns(locale, status);
521 }
522 addCLDRData(locale, status);
523 setDateTimeFromCalendar(locale, status);
524 setDecimalSymbols(locale, status);
525 umtx_initOnce(initOnce, loadAllowedHourFormatsData, status);
526 getAllowedHourFormats(locale, status);
527 // If any of the above methods failed then the object is in an invalid state.
528 internalErrorCode = status;
529} // DateTimePatternGenerator::initData
530
531namespace {
532
533struct AllowedHourFormatsSink : public ResourceSink {
534 // Initialize sub-sinks.
535 AllowedHourFormatsSink() {}
536 virtual ~AllowedHourFormatsSink();
537
538 virtual void put(const char *key, ResourceValue &value, UBool /*noFallback*/,
539 UErrorCode &errorCode) override {
540 ResourceTable timeData = value.getTable(errorCode);
541 if (U_FAILURE(errorCode)) { return; }
542 for (int32_t i = 0; timeData.getKeyAndValue(i, key, value); ++i) {
543 const char *regionOrLocale = key;
544 ResourceTable formatList = value.getTable(errorCode);
545 if (U_FAILURE(errorCode)) { return; }
546 // below we construct a list[] that has an entry for the "preferred" value at [0],
547 // followed by 1 or more entries for the "allowed" values, terminated with an
548 // entry for ALLOWED_HOUR_FORMAT_UNKNOWN (not included in length below)
549 LocalMemory<int32_t> list;
550 int32_t length = 0;
551 int32_t preferredFormat = ALLOWED_HOUR_FORMAT_UNKNOWN;
552 for (int32_t j = 0; formatList.getKeyAndValue(j, key, value); ++j) {
553 if (uprv_strcmp(key, "allowed"):: strcmp(key, "allowed") == 0) {
554 if (value.getType() == URES_STRING) {
555 length = 2; // 1 preferred to add later, 1 allowed to add now
556 if (list.allocateInsteadAndReset(length + 1) == nullptr) {
557 errorCode = U_MEMORY_ALLOCATION_ERROR;
558 return;
559 }
560 list[1] = getHourFormatFromUnicodeString(value.getUnicodeString(errorCode));
561 }
562 else {
563 ResourceArray allowedFormats = value.getArray(errorCode);
564 length = allowedFormats.getSize() + 1; // 1 preferred, getSize allowed
565 if (list.allocateInsteadAndReset(length + 1) == nullptr) {
566 errorCode = U_MEMORY_ALLOCATION_ERROR;
567 return;
568 }
569 for (int32_t k = 1; k < length; ++k) {
570 allowedFormats.getValue(k-1, value);
571 list[k] = getHourFormatFromUnicodeString(value.getUnicodeString(errorCode));
572 }
573 }
574 } else if (uprv_strcmp(key, "preferred"):: strcmp(key, "preferred") == 0) {
575 preferredFormat = getHourFormatFromUnicodeString(value.getUnicodeString(errorCode));
576 }
577 }
578 if (length > 1) {
579 list[0] = (preferredFormat!=ALLOWED_HOUR_FORMAT_UNKNOWN)? preferredFormat: list[1];
580 } else {
581 // fallback handling for missing data
582 length = 2; // 1 preferred, 1 allowed
583 if (list.allocateInsteadAndReset(length + 1) == nullptr) {
584 errorCode = U_MEMORY_ALLOCATION_ERROR;
585 return;
586 }
587 list[0] = (preferredFormat!=ALLOWED_HOUR_FORMAT_UNKNOWN)? preferredFormat: ALLOWED_HOUR_FORMAT_H;
588 list[1] = list[0];
589 }
590 list[length] = ALLOWED_HOUR_FORMAT_UNKNOWN;
591 // At this point list[] will have at least two non-ALLOWED_HOUR_FORMAT_UNKNOWN entries,
592 // followed by ALLOWED_HOUR_FORMAT_UNKNOWN.
593 uhash_put(localeToAllowedHourFormatsMap, const_cast<char *>(regionOrLocale), list.orphan(), &errorCode);
594 if (U_FAILURE(errorCode)) { return; }
595 }
596 }
597
598 AllowedHourFormat getHourFormatFromUnicodeString(const UnicodeString &s) {
599 if (s.length() == 1) {
600 if (s[0] == LOW_H((char16_t)0x0068)) { return ALLOWED_HOUR_FORMAT_h; }
601 if (s[0] == CAP_H((char16_t)0x0048)) { return ALLOWED_HOUR_FORMAT_H; }
602 if (s[0] == CAP_K((char16_t)0x004B)) { return ALLOWED_HOUR_FORMAT_K; }
603 if (s[0] == LOW_K((char16_t)0x006B)) { return ALLOWED_HOUR_FORMAT_k; }
604 } else if (s.length() == 2) {
605 if (s[0] == LOW_H((char16_t)0x0068) && s[1] == LOW_B((char16_t)0x0062)) { return ALLOWED_HOUR_FORMAT_hb; }
606 if (s[0] == LOW_H((char16_t)0x0068) && s[1] == CAP_B((char16_t)0x0042)) { return ALLOWED_HOUR_FORMAT_hB; }
607 if (s[0] == CAP_K((char16_t)0x004B) && s[1] == LOW_B((char16_t)0x0062)) { return ALLOWED_HOUR_FORMAT_Kb; }
608 if (s[0] == CAP_K((char16_t)0x004B) && s[1] == CAP_B((char16_t)0x0042)) { return ALLOWED_HOUR_FORMAT_KB; }
609 if (s[0] == CAP_H((char16_t)0x0048) && s[1] == LOW_B((char16_t)0x0062)) { return ALLOWED_HOUR_FORMAT_Hb; }
610 if (s[0] == CAP_H((char16_t)0x0048) && s[1] == CAP_B((char16_t)0x0042)) { return ALLOWED_HOUR_FORMAT_HB; }
611 }
612
613 return ALLOWED_HOUR_FORMAT_UNKNOWN;
614 }
615};
616
617} // namespace
618
619AllowedHourFormatsSink::~AllowedHourFormatsSink() {}
620
621U_CFUNCextern "C" void U_CALLCONV DateTimePatternGenerator::loadAllowedHourFormatsData(UErrorCode &status) {
622 if (U_FAILURE(status)) { return; }
623 localeToAllowedHourFormatsMap = uhash_open(
624 uhash_hashChars, uhash_compareChars, nullptr, &status);
625 if (U_FAILURE(status)) { return; }
626
627 uhash_setValueDeleter(localeToAllowedHourFormatsMap, deleteAllowedHourFormats);
628 ucln_i18n_registerCleanup(UCLN_I18N_ALLOWED_HOUR_FORMATS, allowedHourFormatsCleanup);
629
630 LocalUResourceBundlePointer rb(ures_openDirect(nullptr, "supplementalData", &status));
631 if (U_FAILURE(status)) { return; }
632
633 AllowedHourFormatsSink sink;
634 // TODO: Currently in the enumeration each table allocates a new array.
635 // Try to reduce the number of memory allocations. Consider storing a
636 // UVector32 with the concatenation of all of the sub-arrays, put the start index
637 // into the hashmap, store 6 single-value sub-arrays right at the beginning of the
638 // vector (at index enum*2) for easy data sharing, copy sub-arrays into runtime
639 // object. Remember to clean up the vector, too.
640 ures_getAllItemsWithFallback(rb.getAlias(), "timeData", sink, status);
641}
642
643static int32_t* getAllowedHourFormatsLangCountry(const char* language, const char* country, UErrorCode& status) {
644 CharString langCountry;
645 langCountry.append(language, status);
646 langCountry.append('_', status);
647 langCountry.append(country, status);
648
649 int32_t* allowedFormats;
650 allowedFormats = static_cast<int32_t*>(uhash_get(localeToAllowedHourFormatsMap, langCountry.data()));
651 if (allowedFormats == nullptr) {
652 allowedFormats = static_cast<int32_t*>(uhash_get(localeToAllowedHourFormatsMap, const_cast<char*>(country)));
653 }
654
655 return allowedFormats;
656}
657
658void DateTimePatternGenerator::getAllowedHourFormats(const Locale &locale, UErrorCode &status) {
659 if (U_FAILURE(status)) { return; }
660
661 const char *language = locale.getLanguage();
662 CharString baseCountry = ulocimp_getRegionForSupplementalData(locale.getName(), false, status);
663 const char* country = baseCountry.data();
664
665 Locale maxLocale; // must be here for correct lifetime
666 if (*language == '\0' || *country == '\0') {
667 maxLocale = locale;
668 UErrorCode localStatus = U_ZERO_ERROR;
669 maxLocale.addLikelySubtags(localStatus);
670 if (U_SUCCESS(localStatus)) {
671 language = maxLocale.getLanguage();
672 country = maxLocale.getCountry();
673 }
674 }
675 if (*language == '\0') {
676 // Unexpected, but fail gracefully
677 language = "und";
678 }
679 if (*country == '\0') {
680 country = "001";
681 }
682
683 int32_t* allowedFormats = getAllowedHourFormatsLangCountry(language, country, status);
684
685 // We need to check if there is an hour cycle on locale
686 char buffer[8];
687 int32_t count = locale.getKeywordValue("hours", buffer, sizeof(buffer), status);
688
689 fDefaultHourFormatChar = 0;
690 if (U_SUCCESS(status) && count > 0) {
691 if(uprv_strcmp(buffer, "h24"):: strcmp(buffer, "h24") == 0) {
692 fDefaultHourFormatChar = LOW_K((char16_t)0x006B);
693 } else if(uprv_strcmp(buffer, "h23"):: strcmp(buffer, "h23") == 0) {
694 fDefaultHourFormatChar = CAP_H((char16_t)0x0048);
695 } else if(uprv_strcmp(buffer, "h12"):: strcmp(buffer, "h12") == 0) {
696 fDefaultHourFormatChar = LOW_H((char16_t)0x0068);
697 } else if(uprv_strcmp(buffer, "h11"):: strcmp(buffer, "h11") == 0) {
698 fDefaultHourFormatChar = CAP_K((char16_t)0x004B);
699 }
700 }
701
702 // Check if the region has an alias
703 if (allowedFormats == nullptr) {
704 UErrorCode localStatus = U_ZERO_ERROR;
705 const Region* region = Region::getInstance(country, localStatus);
706 if (U_SUCCESS(localStatus)) {
707 country = region->getRegionCode(); // the real region code
708 allowedFormats = getAllowedHourFormatsLangCountry(language, country, status);
709 }
710 }
711
712 if (allowedFormats != nullptr) { // Lookup is successful
713 // Here allowedFormats points to a list consisting of key for preferredFormat,
714 // followed by one or more keys for allowedFormats, then followed by ALLOWED_HOUR_FORMAT_UNKNOWN.
715 if (!fDefaultHourFormatChar) {
716 switch (allowedFormats[0]) {
717 case ALLOWED_HOUR_FORMAT_h: fDefaultHourFormatChar = LOW_H((char16_t)0x0068); break;
718 case ALLOWED_HOUR_FORMAT_H: fDefaultHourFormatChar = CAP_H((char16_t)0x0048); break;
719 case ALLOWED_HOUR_FORMAT_K: fDefaultHourFormatChar = CAP_K((char16_t)0x004B); break;
720 case ALLOWED_HOUR_FORMAT_k: fDefaultHourFormatChar = LOW_K((char16_t)0x006B); break;
721 default: fDefaultHourFormatChar = CAP_H((char16_t)0x0048); break;
722 }
723 }
724
725 for (int32_t i = 0; i < UPRV_LENGTHOF(fAllowedHourFormats)(int32_t)(sizeof(fAllowedHourFormats)/sizeof((fAllowedHourFormats
)[0]))
; ++i) {
726 fAllowedHourFormats[i] = allowedFormats[i + 1];
727 if (fAllowedHourFormats[i] == ALLOWED_HOUR_FORMAT_UNKNOWN) {
728 break;
729 }
730 }
731 } else { // Lookup failed, twice
732 if (!fDefaultHourFormatChar) {
733 fDefaultHourFormatChar = CAP_H((char16_t)0x0048);
734 }
735 fAllowedHourFormats[0] = ALLOWED_HOUR_FORMAT_H;
736 fAllowedHourFormats[1] = ALLOWED_HOUR_FORMAT_UNKNOWN;
737 }
738}
739
740UDateFormatHourCycle
741DateTimePatternGenerator::getDefaultHourCycle(UErrorCode& status) const {
742 if (U_FAILURE(status)) {
743 return UDAT_HOUR_CYCLE_23;
744 }
745 if (fDefaultHourFormatChar == 0) {
746 // We need to return something, but the caller should ignore it
747 // anyways since the returned status is a failure.
748 status = U_UNSUPPORTED_ERROR;
749 return UDAT_HOUR_CYCLE_23;
750 }
751 switch (fDefaultHourFormatChar) {
752 case CAP_K((char16_t)0x004B):
753 return UDAT_HOUR_CYCLE_11;
754 case LOW_H((char16_t)0x0068):
755 return UDAT_HOUR_CYCLE_12;
756 case CAP_H((char16_t)0x0048):
757 return UDAT_HOUR_CYCLE_23;
758 case LOW_K((char16_t)0x006B):
759 return UDAT_HOUR_CYCLE_24;
760 default:
761 UPRV_UNREACHABLE_EXITabort();
762 }
763}
764
765UnicodeString
766DateTimePatternGenerator::getSkeleton(const UnicodeString& pattern, UErrorCode&
767/*status*/) {
768 FormatParser fp2;
769 DateTimeMatcher matcher;
770 PtnSkeleton localSkeleton;
771 matcher.set(pattern, &fp2, localSkeleton);
772 return localSkeleton.getSkeleton();
773}
774
775UnicodeString
776DateTimePatternGenerator::staticGetSkeleton(
777 const UnicodeString& pattern, UErrorCode& /*status*/) {
778 FormatParser fp;
779 DateTimeMatcher matcher;
780 PtnSkeleton localSkeleton;
781 matcher.set(pattern, &fp, localSkeleton);
782 return localSkeleton.getSkeleton();
783}
784
785UnicodeString
786DateTimePatternGenerator::getBaseSkeleton(const UnicodeString& pattern, UErrorCode& /*status*/) {
787 FormatParser fp2;
788 DateTimeMatcher matcher;
789 PtnSkeleton localSkeleton;
790 matcher.set(pattern, &fp2, localSkeleton);
791 return localSkeleton.getBaseSkeleton();
792}
793
794UnicodeString
795DateTimePatternGenerator::staticGetBaseSkeleton(
796 const UnicodeString& pattern, UErrorCode& /*status*/) {
797 FormatParser fp;
798 DateTimeMatcher matcher;
799 PtnSkeleton localSkeleton;
800 matcher.set(pattern, &fp, localSkeleton);
801 return localSkeleton.getBaseSkeleton();
802}
803
804void
805DateTimePatternGenerator::addICUPatterns(const Locale& locale, UErrorCode& status) {
806 if (U_FAILURE(status)) {
807 return;
808 }
809
810 LocalUResourceBundlePointer rb(ures_open(nullptr, locale.getBaseName(), &status));
811 CharString calendarTypeToUse; // to be filled in with the type to use, if all goes well
812 getCalendarTypeToUse(locale, calendarTypeToUse, status);
813
814 // HACK to get around the fact that the old SimpleDateFormat code (actually, Calendar::getCalendarTypeForLocale() )
815 // returns "gregorian" for ja_JP_TRADITIONAL instead of "japanese"
816 if (uprv_strcmp(locale.getBaseName(), "ja_JP_TRADITIONAL"):: strcmp(locale.getBaseName(), "ja_JP_TRADITIONAL") == 0) {
817 calendarTypeToUse.clear().append("gregorian", status);
818 }
819
820 if (U_FAILURE(status)) {
821 return;
822 }
823
824 // TODO: See ICU-22867
825 CharString patternResourcePath;
826 patternResourcePath.append(DT_DateTimeCalendarTag, status)
827 .append('/', status)
828 .append(calendarTypeToUse, status)
829 .append('/', status)
830 .append(DT_DateTimePatternsTag, status);
831
832 LocalUResourceBundlePointer dateTimePatterns(ures_getByKeyWithFallback(rb.getAlias(), patternResourcePath.data(),
833 nullptr, &status));
834 if (ures_getType(dateTimePatterns.getAlias()) != URES_ARRAY || ures_getSize(dateTimePatterns.getAlias()) < 8) {
835 status = U_INVALID_FORMAT_ERROR;
836 return;
837 }
838
839 for (int32_t i = 0; U_SUCCESS(status) && i < DateFormat::kDateTime; i++) {
840 LocalUResourceBundlePointer patternRes(ures_getByIndex(dateTimePatterns.getAlias(), i, nullptr, &status));
841 UnicodeString pattern;
842 switch (ures_getType(patternRes.getAlias())) {
843 case URES_STRING:
844 pattern = ures_getUnicodeString(patternRes.getAlias(), &status);
845 break;
846 case URES_ARRAY:
847 pattern = ures_getUnicodeStringByIndex(patternRes.getAlias(), 0, &status);
848 break;
849 default:
850 status = U_INVALID_FORMAT_ERROR;
851 return;
852 }
853
854 if (U_SUCCESS(status)) {
855 UnicodeString conflictingPattern;
856 addPatternWithOptionalSkeleton(pattern, nullptr, false, conflictingPattern, status);
857 }
858 }
859}
860
861void
862DateTimePatternGenerator::hackTimes(const UnicodeString& hackPattern, UErrorCode& status) {
863 UnicodeString conflictingString;
864
865 fp->set(hackPattern);
866 UnicodeString mmss;
867 UBool gotMm=false;
868 for (int32_t i=0; i<fp->itemNumber; ++i) {
869 UnicodeString field = fp->items[i];
870 if ( fp->isQuoteLiteral(field) ) {
871 if ( gotMm ) {
872 UnicodeString quoteLiteral;
873 fp->getQuoteLiteral(quoteLiteral, &i);
874 mmss += quoteLiteral;
875 }
876 }
877 else {
878 if (fp->isPatternSeparator(field) && gotMm) {
879 mmss+=field;
880 }
881 else {
882 char16_t ch=field.charAt(0);
883 if (ch==LOW_M((char16_t)0x006D)) {
884 gotMm=true;
885 mmss+=field;
886 }
887 else {
888 if (ch==LOW_S((char16_t)0x0073)) {
889 if (!gotMm) {
890 break;
891 }
892 mmss+= field;
893 addPattern(mmss, false, conflictingString, status);
894 break;
895 }
896 else {
897 if (gotMm || ch==LOW_Z((char16_t)0x007A) || ch==CAP_Z((char16_t)0x005A) || ch==LOW_V((char16_t)0x0076) || ch==CAP_V((char16_t)0x0056)) {
898 break;
899 }
900 }
901 }
902 }
903 }
904 }
905}
906
907#define ULOC_LOCALE_IDENTIFIER_CAPACITY(157 + 1 + 100) (ULOC_FULLNAME_CAPACITY157 + 1 + ULOC_KEYWORD_AND_VALUES_CAPACITY100)
908
909void
910DateTimePatternGenerator::getCalendarTypeToUse(const Locale& locale, CharString& destination, UErrorCode& err) {
911 destination.clear().append(DT_DateTimeGregorianTag, -1, err); // initial default
912 if ( U_SUCCESS(err) ) {
913 UErrorCode localStatus = U_ZERO_ERROR;
914 char localeWithCalendarKey[ULOC_LOCALE_IDENTIFIER_CAPACITY(157 + 1 + 100)];
915 // obtain a locale that always has the calendar key value that should be used
916 ures_getFunctionalEquivalent(
917 localeWithCalendarKey,
918 ULOC_LOCALE_IDENTIFIER_CAPACITY(157 + 1 + 100),
919 nullptr,
920 "calendar",
921 "calendar",
922 locale.getName(),
923 nullptr,
924 false,
925 &localStatus);
926 localeWithCalendarKey[ULOC_LOCALE_IDENTIFIER_CAPACITY(157 + 1 + 100)-1] = 0; // ensure null termination
927 // now get the calendar key value from that locale
928 // (the call to ures_getFunctionalEquivalent() above might fail, and if it does, localeWithCalendarKey
929 // won't contain a `calendar` keyword. If this happens, the line below will stomp on `destination`,
930 // so we have to check the return code before overwriting `destination`.)
931 if (U_SUCCESS(localStatus)) {
932 destination = ulocimp_getKeywordValue(localeWithCalendarKey, "calendar", localStatus);
933 }
934 // If the input locale was invalid, don't fail with missing resource error, instead
935 // continue with default of Gregorian.
936 if (U_FAILURE(localStatus) && localStatus != U_MISSING_RESOURCE_ERROR) {
937 err = localStatus;
938 }
939 }
940}
941
942void
943DateTimePatternGenerator::consumeShortTimePattern(const UnicodeString& shortTimePattern,
944 UErrorCode& status) {
945 if (U_FAILURE(status)) { return; }
946 // ICU-20383 No longer set fDefaultHourFormatChar to the hour format character from
947 // this pattern; instead it is set from localeToAllowedHourFormatsMap which now
948 // includes entries for both preferred and allowed formats.
949
950 // HACK for hh:ss
951 hackTimes(shortTimePattern, status);
952}
953
954struct DateTimePatternGenerator::AppendItemFormatsSink : public ResourceSink {
955
956 // Destination for data, modified via setters.
957 DateTimePatternGenerator& dtpg;
958
959 AppendItemFormatsSink(DateTimePatternGenerator& _dtpg) : dtpg(_dtpg) {}
960 virtual ~AppendItemFormatsSink();
961
962 virtual void put(const char *key, ResourceValue &value, UBool /*noFallback*/,
963 UErrorCode &errorCode) override {
964 UDateTimePatternField field = dtpg.getAppendFormatNumber(key);
965 if (field == UDATPG_FIELD_COUNT) { return; }
966 const UnicodeString& valueStr = value.getUnicodeString(errorCode);
967 if (dtpg.getAppendItemFormat(field).isEmpty() && !valueStr.isEmpty()) {
968 dtpg.setAppendItemFormat(field, valueStr);
969 }
970 }
971
972 void fillInMissing() {
973 UnicodeString defaultItemFormat(true, UDATPG_ItemFormat, UPRV_LENGTHOF(UDATPG_ItemFormat)(int32_t)(sizeof(UDATPG_ItemFormat)/sizeof((UDATPG_ItemFormat
)[0]))
-1); // Read-only alias.
974 for (int32_t i = 0; i < UDATPG_FIELD_COUNT; i++) {
975 UDateTimePatternField field = static_cast<UDateTimePatternField>(i);
976 if (dtpg.getAppendItemFormat(field).isEmpty()) {
977 dtpg.setAppendItemFormat(field, defaultItemFormat);
978 }
979 }
980 }
981};
982
983struct DateTimePatternGenerator::AppendItemNamesSink : public ResourceSink {
984
985 // Destination for data, modified via setters.
986 DateTimePatternGenerator& dtpg;
987
988 AppendItemNamesSink(DateTimePatternGenerator& _dtpg) : dtpg(_dtpg) {}
989 virtual ~AppendItemNamesSink();
990
991 virtual void put(const char *key, ResourceValue &value, UBool /*noFallback*/,
992 UErrorCode &errorCode) override {
993 UDateTimePGDisplayWidth width;
994 UDateTimePatternField field = dtpg.getFieldAndWidthIndices(key, &width);
995 if (field == UDATPG_FIELD_COUNT) { return; }
996 ResourceTable detailsTable = value.getTable(errorCode);
997 if (U_FAILURE(errorCode)) { return; }
998 if (!detailsTable.findValue("dn", value)) { return; }
999 const UnicodeString& valueStr = value.getUnicodeString(errorCode);
1000 if (U_SUCCESS(errorCode) && dtpg.getFieldDisplayName(field,width).isEmpty() && !valueStr.isEmpty()) {
1001 dtpg.setFieldDisplayName(field,width,valueStr);
1002 }
1003 }
1004
1005 void fillInMissing() {
1006 for (int32_t i = 0; i < UDATPG_FIELD_COUNT; i++) {
1007 UnicodeString& valueStr = dtpg.getMutableFieldDisplayName(static_cast<UDateTimePatternField>(i), UDATPG_WIDE);
1008 if (valueStr.isEmpty()) {
1009 valueStr = CAP_F((char16_t)0x0046);
1010 U_ASSERT(i < 20)(static_cast <bool> (i < 20) ? void (0) : __assert_fail
("i < 20", __builtin_FILE (), __builtin_LINE (), __extension__
__PRETTY_FUNCTION__))
;
1011 if (i < 10) {
1012 // F0, F1, ..., F9
1013 valueStr += static_cast<char16_t>(i + 0x30);
1014 } else {
1015 // F10, F11, ...
1016 valueStr += static_cast<char16_t>(0x31);
1017 valueStr += static_cast<char16_t>(i - 10 + 0x30);
1018 }
1019 // NUL-terminate for the C API.
1020 valueStr.getTerminatedBuffer();
1021 }
1022 for (int32_t j = 1; j < UDATPG_WIDTH_COUNT; j++) {
1023 UnicodeString& valueStr2 = dtpg.getMutableFieldDisplayName(static_cast<UDateTimePatternField>(i), static_cast<UDateTimePGDisplayWidth>(j));
1024 if (valueStr2.isEmpty()) {
1025 valueStr2 = dtpg.getFieldDisplayName(static_cast<UDateTimePatternField>(i), static_cast<UDateTimePGDisplayWidth>(j - 1));
1026 }
1027 }
1028 }
1029 }
1030};
1031
1032struct DateTimePatternGenerator::AvailableFormatsSink : public ResourceSink {
1033
1034 // Destination for data, modified via setters.
1035 DateTimePatternGenerator& dtpg;
1036
1037 // Temporary variable, required for calling addPatternWithSkeleton.
1038 UnicodeString conflictingPattern;
1039
1040 AvailableFormatsSink(DateTimePatternGenerator& _dtpg) : dtpg(_dtpg) {}
1041 virtual ~AvailableFormatsSink();
1042
1043 virtual void put(const char *key, ResourceValue &value, UBool /*isRoot*/,
1044 UErrorCode &errorCode) override {
1045 const UnicodeString formatKey(key, -1, US_INVicu::UnicodeString::kInvariant);
1046 if (!dtpg.isAvailableFormatSet(formatKey) ) {
1047 dtpg.setAvailableFormat(formatKey, errorCode);
1048 // Add pattern with its associated skeleton. Override any duplicate
1049 // derived from std patterns, but not a previous availableFormats entry:
1050 const UnicodeString& formatValue = value.getUnicodeString(errorCode);
1051 conflictingPattern.remove();
1052 dtpg.addPatternWithSkeleton(formatValue, formatKey, true, conflictingPattern, errorCode);
1053 }
1054 }
1055};
1056
1057// Virtual destructors must be defined out of line.
1058DateTimePatternGenerator::AppendItemFormatsSink::~AppendItemFormatsSink() {}
1059DateTimePatternGenerator::AppendItemNamesSink::~AppendItemNamesSink() {}
1060DateTimePatternGenerator::AvailableFormatsSink::~AvailableFormatsSink() {}
1061
1062void
1063DateTimePatternGenerator::addCLDRData(const Locale& locale, UErrorCode& errorCode) {
1064 if (U_FAILURE(errorCode)) { return; }
1065 UnicodeString rbPattern, value, field;
1066 CharString path;
1067
1068 LocalUResourceBundlePointer rb(ures_open(nullptr, locale.getName(), &errorCode));
1069 if (U_FAILURE(errorCode)) { return; }
1070
1071 CharString calendarTypeToUse; // to be filled in with the type to use, if all goes well
1072 getCalendarTypeToUse(locale, calendarTypeToUse, errorCode);
1073 if (U_FAILURE(errorCode)) { return; }
1074
1075 // Local err to ignore resource not found exceptions
1076 UErrorCode err = U_ZERO_ERROR;
1077
1078 // Load append item formats.
1079 AppendItemFormatsSink appendItemFormatsSink(*this);
1080 path.clear()
1081 .append(DT_DateTimeCalendarTag, errorCode)
1082 .append('/', errorCode)
1083 .append(calendarTypeToUse, errorCode)
1084 .append('/', errorCode)
1085 .append(DT_DateTimeAppendItemsTag, errorCode); // i.e., calendar/xxx/appendItems
1086 if (U_FAILURE(errorCode)) { return; }
1087 ures_getAllChildrenWithFallback(rb.getAlias(), path.data(), appendItemFormatsSink, err);
1088 appendItemFormatsSink.fillInMissing();
1089
1090 // Load CLDR item names.
1091 err = U_ZERO_ERROR;
1092 AppendItemNamesSink appendItemNamesSink(*this);
1093 ures_getAllChildrenWithFallback(rb.getAlias(), DT_DateTimeFieldsTag, appendItemNamesSink, err);
1094 appendItemNamesSink.fillInMissing();
1095
1096 // Load the available formats from CLDR.
1097 err = U_ZERO_ERROR;
1098 initHashtable(errorCode);
1099 if (U_FAILURE(errorCode)) { return; }
1100 AvailableFormatsSink availableFormatsSink(*this);
1101 path.clear()
1102 .append(DT_DateTimeCalendarTag, errorCode)
1103 .append('/', errorCode)
1104 .append(calendarTypeToUse, errorCode)
1105 .append('/', errorCode)
1106 .append(DT_DateTimeAvailableFormatsTag, errorCode); // i.e., calendar/xxx/availableFormats
1107 if (U_FAILURE(errorCode)) { return; }
1108 ures_getAllChildrenWithFallback(rb.getAlias(), path.data(), availableFormatsSink, err);
1109}
1110
1111void
1112DateTimePatternGenerator::initHashtable(UErrorCode& err) {
1113 if (U_FAILURE(err)) { return; }
1114 if (fAvailableFormatKeyHash!=nullptr) {
1115 return;
1116 }
1117 LocalPointer<Hashtable> hash(new Hashtable(false, err), err);
1118 if (U_SUCCESS(err)) {
1119 fAvailableFormatKeyHash = hash.orphan();
1120 }
1121}
1122
1123void
1124DateTimePatternGenerator::setAppendItemFormat(UDateTimePatternField field, const UnicodeString& value) {
1125 appendItemFormats[field] = value;
1126 // NUL-terminate for the C API.
1127 appendItemFormats[field].getTerminatedBuffer();
1128}
1129
1130const UnicodeString&
1131DateTimePatternGenerator::getAppendItemFormat(UDateTimePatternField field) const {
1132 return appendItemFormats[field];
1133}
1134
1135void
1136DateTimePatternGenerator::setAppendItemName(UDateTimePatternField field, const UnicodeString& value) {
1137 setFieldDisplayName(field, UDATPG_WIDTH_APPENDITEM, value);
1138}
1139
1140const UnicodeString&
1141DateTimePatternGenerator::getAppendItemName(UDateTimePatternField field) const {
1142 return fieldDisplayNames[field][UDATPG_WIDTH_APPENDITEM];
1143}
1144
1145void
1146DateTimePatternGenerator::setFieldDisplayName(UDateTimePatternField field, UDateTimePGDisplayWidth width, const UnicodeString& value) {
1147 fieldDisplayNames[field][width] = value;
1148 // NUL-terminate for the C API.
1149 fieldDisplayNames[field][width].getTerminatedBuffer();
1150}
1151
1152UnicodeString
1153DateTimePatternGenerator::getFieldDisplayName(UDateTimePatternField field, UDateTimePGDisplayWidth width) const {
1154 return fieldDisplayNames[field][width];
1155}
1156
1157UnicodeString&
1158DateTimePatternGenerator::getMutableFieldDisplayName(UDateTimePatternField field, UDateTimePGDisplayWidth width) {
1159 return fieldDisplayNames[field][width];
1160}
1161
1162void
1163DateTimePatternGenerator::getAppendName(UDateTimePatternField field, UnicodeString& value) {
1164 value = SINGLE_QUOTE((char16_t)0x0027);
1165 value += fieldDisplayNames[field][UDATPG_WIDTH_APPENDITEM];
1166 value += SINGLE_QUOTE((char16_t)0x0027);
1167}
1168
1169UnicodeString
1170DateTimePatternGenerator::getBestPattern(const UnicodeString& patternForm, UErrorCode& status) {
1171 return getBestPattern(patternForm, UDATPG_MATCH_NO_OPTIONS, status);
1172}
1173
1174UnicodeString
1175DateTimePatternGenerator::getBestPattern(const UnicodeString& patternForm, UDateTimePatternMatchOptions options, UErrorCode& status) {
1176 if (U_FAILURE(status)) {
1177 return {};
1178 }
1179 if (U_FAILURE(internalErrorCode)) {
1180 status = internalErrorCode;
1181 return {};
1182 }
1183 const UnicodeString *bestPattern = nullptr;
1184 UnicodeString dtFormat;
1185 UnicodeString resultPattern;
1186 int32_t flags = kDTPGNoFlags;
1187
1188 int32_t dateMask=(1<<UDATPG_DAYPERIOD_FIELD) - 1;
1189 int32_t timeMask=(1<<UDATPG_FIELD_COUNT) - 1 - dateMask;
1190
1191 // Replace hour metacharacters 'j', 'C' and 'J', set flags as necessary
1192 UnicodeString patternFormMapped = mapSkeletonMetacharacters(patternForm, &flags, status);
1193 if (U_FAILURE(status)) {
1194 return {};
1195 }
1196
1197 resultPattern.remove();
1198 dtMatcher->set(patternFormMapped, fp);
1199 const PtnSkeleton* specifiedSkeleton = nullptr;
1200 bestPattern=getBestRaw(*dtMatcher, -1, distanceInfo, status, &specifiedSkeleton);
1201 if (U_FAILURE(status)) {
1202 return {};
1203 }
1204
1205 if ( distanceInfo->missingFieldMask==0 && distanceInfo->extraFieldMask==0 ) {
1206 resultPattern = adjustFieldTypes(*bestPattern, specifiedSkeleton, flags, options);
1207
1208 return resultPattern;
1209 }
1210 int32_t neededFields = dtMatcher->getFieldMask();
1211 UnicodeString datePattern=getBestAppending(neededFields & dateMask, flags, status, options);
1212 UnicodeString timePattern=getBestAppending(neededFields & timeMask, flags, status, options);
1213 if (U_FAILURE(status)) {
1214 return {};
1215 }
1216 if (datePattern.length()==0) {
1217 if (timePattern.length()==0) {
1218 resultPattern.remove();
1219 }
1220 else {
1221 return timePattern;
1222 }
1223 }
1224 if (timePattern.length()==0) {
1225 return datePattern;
1226 }
1227 resultPattern.remove();
1228 status = U_ZERO_ERROR;
1229 // determine which dateTimeFormat to use
1230 PtnSkeleton* reqSkeleton = dtMatcher->getSkeletonPtr();
1231 UDateFormatStyle style = UDAT_SHORT;
1232 int32_t monthFieldLen = reqSkeleton->baseOriginal.getFieldLength(UDATPG_MONTH_FIELD);
1233 if (monthFieldLen == 4) {
1234 if (reqSkeleton->baseOriginal.getFieldLength(UDATPG_WEEKDAY_FIELD) > 0) {
1235 style = UDAT_FULL;
1236 } else {
1237 style = UDAT_LONG;
1238 }
1239 } else if (monthFieldLen == 3) {
1240 style = UDAT_MEDIUM;
1241 }
1242 // and now use it to compose date and time
1243 dtFormat=getDateTimeFormat(style, status);
1244 SimpleFormatter(dtFormat, 2, 2, status).format(timePattern, datePattern, resultPattern, status);
1245 return resultPattern;
1246}
1247
1248/*
1249 * Map a skeleton that may have metacharacters jJC to one without, by replacing
1250 * the metacharacters with locale-appropriate fields of h/H/k/K and of a/b/B
1251 * (depends on fDefaultHourFormatChar and fAllowedHourFormats being set, which in
1252 * turn depends on initData having been run). This method also updates the flags
1253 * as necessary. Returns the updated skeleton.
1254 */
1255UnicodeString
1256DateTimePatternGenerator::mapSkeletonMetacharacters(const UnicodeString& patternForm, int32_t* flags, UErrorCode& status) {
1257 UnicodeString patternFormMapped;
1258 patternFormMapped.remove();
1259 UBool inQuoted = false;
1260 int32_t patPos, patLen = patternForm.length();
1261 for (patPos = 0; patPos < patLen; patPos++) {
1262 char16_t patChr = patternForm.charAt(patPos);
1263 if (patChr == SINGLE_QUOTE((char16_t)0x0027)) {
1264 inQuoted = !inQuoted;
1265 } else if (!inQuoted) {
1266 // Handle special mappings for 'j' and 'C' in which fields lengths
1267 // 1,3,5 => hour field length 1
1268 // 2,4,6 => hour field length 2
1269 // 1,2 => abbreviated dayPeriod (field length 1..3)
1270 // 3,4 => long dayPeriod (field length 4)
1271 // 5,6 => narrow dayPeriod (field length 5)
1272 if (patChr == LOW_J((char16_t)0x006A) || patChr == CAP_C((char16_t)0x0043)) {
1273 int32_t extraLen = 0; // 1 less than total field length
1274 while (patPos+1 < patLen && patternForm.charAt(patPos+1)==patChr) {
1275 extraLen++;
1276 patPos++;
1277 }
1278 int32_t hourLen = 1 + (extraLen & 1);
1279 int32_t dayPeriodLen = (extraLen < 2)? 1: 3 + (extraLen >> 1);
1280 char16_t hourChar = LOW_H((char16_t)0x0068);
1281 char16_t dayPeriodChar = LOW_A((char16_t)0x0061);
1282 if (patChr == LOW_J((char16_t)0x006A)) {
1283 hourChar = fDefaultHourFormatChar;
1284 } else {
1285 AllowedHourFormat bestAllowed;
1286 if (fAllowedHourFormats[0] != ALLOWED_HOUR_FORMAT_UNKNOWN) {
1287 bestAllowed = static_cast<AllowedHourFormat>(fAllowedHourFormats[0]);
1288 } else {
1289 status = U_INVALID_FORMAT_ERROR;
1290 return {};
1291 }
1292 if (bestAllowed == ALLOWED_HOUR_FORMAT_H || bestAllowed == ALLOWED_HOUR_FORMAT_HB || bestAllowed == ALLOWED_HOUR_FORMAT_Hb) {
1293 hourChar = CAP_H((char16_t)0x0048);
1294 } else if (bestAllowed == ALLOWED_HOUR_FORMAT_K || bestAllowed == ALLOWED_HOUR_FORMAT_KB || bestAllowed == ALLOWED_HOUR_FORMAT_Kb) {
1295 hourChar = CAP_K((char16_t)0x004B);
1296 } else if (bestAllowed == ALLOWED_HOUR_FORMAT_k) {
1297 hourChar = LOW_K((char16_t)0x006B);
1298 }
1299 // in #13183 just add b/B to skeleton, no longer need to set special flags
1300 if (bestAllowed == ALLOWED_HOUR_FORMAT_HB || bestAllowed == ALLOWED_HOUR_FORMAT_hB || bestAllowed == ALLOWED_HOUR_FORMAT_KB) {
1301 dayPeriodChar = CAP_B((char16_t)0x0042);
1302 } else if (bestAllowed == ALLOWED_HOUR_FORMAT_Hb || bestAllowed == ALLOWED_HOUR_FORMAT_hb || bestAllowed == ALLOWED_HOUR_FORMAT_Kb) {
1303 dayPeriodChar = LOW_B((char16_t)0x0062);
1304 }
1305 }
1306 if (hourChar==CAP_H((char16_t)0x0048) || hourChar==LOW_K((char16_t)0x006B)) {
1307 dayPeriodLen = 0;
1308 }
1309 while (dayPeriodLen-- > 0) {
1310 patternFormMapped.append(dayPeriodChar);
1311 }
1312 while (hourLen-- > 0) {
1313 patternFormMapped.append(hourChar);
1314 }
1315 } else if (patChr == CAP_J((char16_t)0x004A)) {
1316 // Get pattern for skeleton with H, then replace H or k
1317 // with fDefaultHourFormatChar (if different)
1318 patternFormMapped.append(CAP_H((char16_t)0x0048));
1319 *flags |= kDTPGSkeletonUsesCapJ;
1320 } else {
1321 patternFormMapped.append(patChr);
1322 }
1323 }
1324 }
1325 return patternFormMapped;
1326}
1327
1328UnicodeString
1329DateTimePatternGenerator::replaceFieldTypes(const UnicodeString& pattern,
1330 const UnicodeString& skeleton,
1331 UErrorCode& status) {
1332 return replaceFieldTypes(pattern, skeleton, UDATPG_MATCH_NO_OPTIONS, status);
1333}
1334
1335UnicodeString
1336DateTimePatternGenerator::replaceFieldTypes(const UnicodeString& pattern,
1337 const UnicodeString& skeleton,
1338 UDateTimePatternMatchOptions options,
1339 UErrorCode& status) {
1340 if (U_FAILURE(status)) {
1341 return {};
1342 }
1343 if (U_FAILURE(internalErrorCode)) {
1344 status = internalErrorCode;
1345 return {};
1346 }
1347 dtMatcher->set(skeleton, fp);
1348 UnicodeString result = adjustFieldTypes(pattern, nullptr, kDTPGNoFlags, options);
1349 return result;
1350}
1351
1352void
1353DateTimePatternGenerator::setDecimal(const UnicodeString& newDecimal) {
1354 this->decimal = newDecimal;
1355 // NUL-terminate for the C API.
1356 this->decimal.getTerminatedBuffer();
1357}
1358
1359const UnicodeString&
1360DateTimePatternGenerator::getDecimal() const {
1361 return decimal;
1362}
1363
1364void
1365DateTimePatternGenerator::addCanonicalItems(UErrorCode& status) {
1366 if (U_FAILURE(status)) { return; }
1367 UnicodeString conflictingPattern;
1368
1369 for (int32_t i=0; i<UDATPG_FIELD_COUNT; i++) {
1370 if (Canonical_Items[i] > 0) {
1371 addPattern(UnicodeString(Canonical_Items[i]), false, conflictingPattern, status);
1372 }
1373 if (U_FAILURE(status)) { return; }
1374 }
1375}
1376
1377void
1378DateTimePatternGenerator::setDateTimeFormat(const UnicodeString& dtFormat) {
1379 UErrorCode status = U_ZERO_ERROR;
1380 for (int32_t style = UDAT_FULL; style <= UDAT_SHORT; style++) {
1381 setDateTimeFormat(static_cast<UDateFormatStyle>(style), dtFormat, status);
1382 }
1383}
1384
1385const UnicodeString&
1386DateTimePatternGenerator::getDateTimeFormat() const {
1387 UErrorCode status = U_ZERO_ERROR;
1388 return getDateTimeFormat(UDAT_MEDIUM, status);
1389}
1390
1391void
1392DateTimePatternGenerator::setDateTimeFormat(UDateFormatStyle style, const UnicodeString& dtFormat, UErrorCode& status) {
1393 if (U_FAILURE(status)) {
1394 return;
1395 }
1396 if (style < UDAT_FULL || style > UDAT_SHORT) {
1397 status = U_ILLEGAL_ARGUMENT_ERROR;
1398 return;
1399 }
1400 dateTimeFormat[style] = dtFormat;
1401 // Note for the following: getTerminatedBuffer() can re-allocate the UnicodeString
1402 // buffer so we do this here before clients request a const ref to the UnicodeString
1403 // or its buffer.
1404 dateTimeFormat[style].getTerminatedBuffer(); // NUL-terminate for the C API.
1405}
1406
1407const UnicodeString&
1408DateTimePatternGenerator::getDateTimeFormat(UDateFormatStyle style, UErrorCode& status) const {
1409 static const UnicodeString emptyString = UNICODE_STRING_SIMPLE("")icu::UnicodeString(true, u"", -1);
1410 if (U_FAILURE(status)) {
1411 return emptyString;
1412 }
1413 if (style < UDAT_FULL || style > UDAT_SHORT) {
1414 status = U_ILLEGAL_ARGUMENT_ERROR;
1415 return emptyString;
1416 }
1417 return dateTimeFormat[style];
1418}
1419
1420static const int32_t cTypeBufMax = 32;
1421
1422void
1423DateTimePatternGenerator::setDateTimeFromCalendar(const Locale& locale, UErrorCode& status) {
1424 if (U_FAILURE(status)) { return; }
1425
1426 const char16_t *resStr;
1427 int32_t resStrLen = 0;
1428
1429 LocalUResourceBundlePointer calData(ures_open(nullptr, locale.getBaseName(), &status));
1430 if (U_FAILURE(status)) { return; }
1431 ures_getByKey(calData.getAlias(), DT_DateTimeCalendarTag, calData.getAlias(), &status);
1432 if (U_FAILURE(status)) { return; }
1433
1434 char cType[cTypeBufMax + 1];
1435 Calendar::getCalendarTypeFromLocale(locale, cType, cTypeBufMax, status);
1436 cType[cTypeBufMax] = 0;
1437 if (U_FAILURE(status) || cType[0] == 0) {
1438 status = U_ZERO_ERROR;
1439 uprv_strcpy(cType, DT_DateTimeGregorianTag):: strcpy(cType, DT_DateTimeGregorianTag);
1440 }
1441 UBool cTypeIsGregorian = (uprv_strcmp(cType, DT_DateTimeGregorianTag):: strcmp(cType, DT_DateTimeGregorianTag) == 0);
1442
1443 // Currently, for compatibility with pre-CLDR-42 data, we default to the "atTime"
1444 // combining patterns. Depending on guidance in CLDR 42 spec and on DisplayOptions,
1445 // we may change this.
1446 LocalUResourceBundlePointer specificCalBundle;
1447 LocalUResourceBundlePointer dateTimePatterns;
1448 int32_t dateTimeOffset = 0; // initially for DateTimePatterns%atTime
1449 if (!cTypeIsGregorian) {
1450 specificCalBundle.adoptInstead(ures_getByKeyWithFallback(calData.getAlias(), cType,
1451 nullptr, &status));
1452 dateTimePatterns.adoptInstead(ures_getByKeyWithFallback(specificCalBundle.getAlias(), DT_DateAtTimePatternsTag, // the %atTime variant, 4 entries
1453 nullptr, &status));
1454 }
1455 if (dateTimePatterns.isNull() || status == U_MISSING_RESOURCE_ERROR) {
1456 status = U_ZERO_ERROR;
1457 specificCalBundle.adoptInstead(ures_getByKeyWithFallback(calData.getAlias(), DT_DateTimeGregorianTag,
1458 nullptr, &status));
1459 dateTimePatterns.adoptInstead(ures_getByKeyWithFallback(specificCalBundle.getAlias(), DT_DateAtTimePatternsTag, // the %atTime variant, 4 entries
1460 nullptr, &status));
1461 }
1462 if (U_SUCCESS(status) && (ures_getSize(dateTimePatterns.getAlias()) < 4)) {
1463 status = U_INVALID_FORMAT_ERROR;
1464 }
1465 if (status == U_MISSING_RESOURCE_ERROR) {
1466 // Try again with standard variant
1467 status = U_ZERO_ERROR;
1468 dateTimePatterns.orphan();
1469 dateTimeOffset = static_cast<int32_t>(DateFormat::kDateTimeOffset);
1470 if (!cTypeIsGregorian) {
1471 specificCalBundle.adoptInstead(ures_getByKeyWithFallback(calData.getAlias(), cType,
1472 nullptr, &status));
1473 dateTimePatterns.adoptInstead(ures_getByKeyWithFallback(specificCalBundle.getAlias(), DT_DateTimePatternsTag, // the standard variant, 13 entries
1474 nullptr, &status));
1475 }
1476 if (dateTimePatterns.isNull() || status == U_MISSING_RESOURCE_ERROR) {
1477 status = U_ZERO_ERROR;
1478 specificCalBundle.adoptInstead(ures_getByKeyWithFallback(calData.getAlias(), DT_DateTimeGregorianTag,
1479 nullptr, &status));
1480 dateTimePatterns.adoptInstead(ures_getByKeyWithFallback(specificCalBundle.getAlias(), DT_DateTimePatternsTag, // the standard variant, 13 entries
1481 nullptr, &status));
1482 }
1483 if (U_SUCCESS(status) && (ures_getSize(dateTimePatterns.getAlias()) <= DateFormat::kDateTimeOffset + DateFormat::kShort)) {
1484 status = U_INVALID_FORMAT_ERROR;
1485 }
1486 }
1487 if (U_FAILURE(status)) { return; }
1488 for (int32_t style = UDAT_FULL; style <= UDAT_SHORT; style++) {
1489 resStr = ures_getStringByIndex(dateTimePatterns.getAlias(), dateTimeOffset + style, &resStrLen, &status);
1490 setDateTimeFormat(static_cast<UDateFormatStyle>(style), UnicodeString(true, resStr, resStrLen), status);
1491 }
1492}
1493
1494void
1495DateTimePatternGenerator::setDecimalSymbols(const Locale& locale, UErrorCode& status) {
1496 DecimalFormatSymbols dfs = DecimalFormatSymbols(locale, status);
1497 if(U_SUCCESS(status)) {
1498 decimal = dfs.getSymbol(DecimalFormatSymbols::kDecimalSeparatorSymbol);
1499 // NUL-terminate for the C API.
1500 decimal.getTerminatedBuffer();
1501 }
1502}
1503
1504UDateTimePatternConflict
1505DateTimePatternGenerator::addPattern(
1506 const UnicodeString& pattern,
1507 UBool override,
1508 UnicodeString &conflictingPattern,
1509 UErrorCode& status)
1510{
1511 if (U_FAILURE(internalErrorCode)) {
1512 status = internalErrorCode;
1513 return UDATPG_NO_CONFLICT;
1514 }
1515
1516 return addPatternWithOptionalSkeleton(pattern, nullptr, override, conflictingPattern, status);
1517}
1518
1519UDateTimePatternConflict
1520DateTimePatternGenerator::addPatternWithSkeleton(
1521 const UnicodeString& pattern,
1522 const UnicodeString& skeletonToUse,
1523 UBool override,
1524 UnicodeString& conflictingPattern,
1525 UErrorCode& status)
1526{
1527 return addPatternWithOptionalSkeleton(pattern, &skeletonToUse, override, conflictingPattern, status);
1528}
1529
1530// For DateTimePatternGenerator::addPatternWithSkeleton -
1531// If skeletonToUse is specified, then an availableFormats entry is being added. In this case:
1532// 1. We pass that skeleton to matcher.set instead of having it derive a skeleton from the pattern.
1533// 2. If the new entry's skeleton or basePattern does match an existing entry but that entry also had a skeleton specified
1534// (i.e. it was also from availableFormats), then the new entry does not override it regardless of the value of the override
1535// parameter. This prevents later availableFormats entries from a parent locale overriding earlier ones from the actual
1536// specified locale. However, availableFormats entries *should* override entries with matching skeleton whose skeleton was
1537// derived (i.e. entries derived from the standard date/time patters for the specified locale).
1538// 3. When adding the pattern (patternMap->add), we set a new boolean to indicate that the added entry had a
1539// specified skeleton (which sets a new field in the PtnElem in the PatternMap).
1540UDateTimePatternConflict
1541DateTimePatternGenerator::addPatternWithOptionalSkeleton(
1542 const UnicodeString& pattern,
1543 const UnicodeString* skeletonToUse,
1544 UBool override,
1545 UnicodeString& conflictingPattern,
1546 UErrorCode& status)
1547{
1548 if (U_FAILURE(internalErrorCode)) {
1549 status = internalErrorCode;
1550 return UDATPG_NO_CONFLICT;
1551 }
1552
1553 UnicodeString basePattern;
1554 PtnSkeleton skeleton;
1555 UDateTimePatternConflict conflictingStatus = UDATPG_NO_CONFLICT;
1556
1557 DateTimeMatcher matcher;
1558 if ( skeletonToUse == nullptr ) {
1559 matcher.set(pattern, fp, skeleton);
1560 matcher.getBasePattern(basePattern);
1561 } else {
1562 matcher.set(*skeletonToUse, fp, skeleton); // no longer trims skeleton fields to max len 3, per #7930
1563 matcher.getBasePattern(basePattern); // or perhaps instead: basePattern = *skeletonToUse;
1564 }
1565 // We only care about base conflicts - and replacing the pattern associated with a base - if:
1566 // 1. the conflicting previous base pattern did *not* have an explicit skeleton; in that case the previous
1567 // base + pattern combination was derived from either (a) a canonical item, (b) a standard format, or
1568 // (c) a pattern specified programmatically with a previous call to addPattern (which would only happen
1569 // if we are getting here from a subsequent call to addPattern).
1570 // 2. a skeleton is specified for the current pattern, but override=false; in that case we are checking
1571 // availableFormats items from root, which should not override any previous entry with the same base.
1572 UBool entryHadSpecifiedSkeleton;
1573 const UnicodeString *duplicatePattern = patternMap->getPatternFromBasePattern(basePattern, entryHadSpecifiedSkeleton);
1574 if (duplicatePattern != nullptr && (!entryHadSpecifiedSkeleton || (skeletonToUse != nullptr && !override))) {
1575 conflictingStatus = UDATPG_BASE_CONFLICT;
1576 conflictingPattern = *duplicatePattern;
1577 if (!override) {
1578 return conflictingStatus;
1579 }
1580 }
1581 // The only time we get here with override=true and skeletonToUse!=null is when adding availableFormats
1582 // items from CLDR data. In that case, we don't want an item from a parent locale to replace an item with
1583 // same skeleton from the specified locale, so skip the current item if skeletonWasSpecified is true for
1584 // the previously-specified conflicting item.
1585 const PtnSkeleton* entrySpecifiedSkeleton = nullptr;
1586 duplicatePattern = patternMap->getPatternFromSkeleton(skeleton, &entrySpecifiedSkeleton);
1587 if (duplicatePattern != nullptr ) {
1588 conflictingStatus = UDATPG_CONFLICT;
1589 conflictingPattern = *duplicatePattern;
1590 if (!override || (skeletonToUse != nullptr && entrySpecifiedSkeleton != nullptr)) {
1591 return conflictingStatus;
1592 }
1593 }
1594 patternMap->add(basePattern, skeleton, pattern, skeletonToUse != nullptr, status);
1595 if(U_FAILURE(status)) {
1596 return conflictingStatus;
1597 }
1598
1599 return UDATPG_NO_CONFLICT;
1600}
1601
1602
1603UDateTimePatternField
1604DateTimePatternGenerator::getAppendFormatNumber(const char* field) const {
1605 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i ) {
1606 if (uprv_strcmp(CLDR_FIELD_APPEND[i], field):: strcmp(CLDR_FIELD_APPEND[i], field)==0) {
1607 return static_cast<UDateTimePatternField>(i);
1608 }
1609 }
1610 return UDATPG_FIELD_COUNT;
1611}
1612
1613UDateTimePatternField
1614DateTimePatternGenerator::getFieldAndWidthIndices(const char* key, UDateTimePGDisplayWidth* widthP) const {
1615 char cldrFieldKey[UDATPG_FIELD_KEY_MAX + 1];
1616 uprv_strncpy(cldrFieldKey, key, UDATPG_FIELD_KEY_MAX):: strncpy(cldrFieldKey, key, UDATPG_FIELD_KEY_MAX);
1617 cldrFieldKey[UDATPG_FIELD_KEY_MAX]=0; // ensure termination
1618 *widthP = UDATPG_WIDE;
1619 char* hyphenPtr = uprv_strchr(cldrFieldKey, '-'):: strchr(cldrFieldKey, '-');
1620 if (hyphenPtr) {
1621 for (int32_t i=UDATPG_WIDTH_COUNT-1; i>0; --i) {
1622 if (uprv_strcmp(CLDR_FIELD_WIDTH[i], hyphenPtr):: strcmp(CLDR_FIELD_WIDTH[i], hyphenPtr)==0) {
1623 *widthP = static_cast<UDateTimePGDisplayWidth>(i);
1624 break;
1625 }
1626 }
1627 *hyphenPtr = 0; // now delete width portion of key
1628 }
1629 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i ) {
1630 if (uprv_strcmp(CLDR_FIELD_NAME[i],cldrFieldKey):: strcmp(CLDR_FIELD_NAME[i], cldrFieldKey)==0) {
1631 return static_cast<UDateTimePatternField>(i);
1632 }
1633 }
1634 return UDATPG_FIELD_COUNT;
1635}
1636
1637const UnicodeString*
1638DateTimePatternGenerator::getBestRaw(DateTimeMatcher& source,
1639 int32_t includeMask,
1640 DistanceInfo* missingFields,
1641 UErrorCode &status,
1642 const PtnSkeleton** specifiedSkeletonPtr) {
1643 int32_t bestDistance = 0x7fffffff;
1644 int32_t bestMissingFieldMask = -1;
1645 DistanceInfo tempInfo;
1646 const UnicodeString *bestPattern=nullptr;
1647 const PtnSkeleton* specifiedSkeleton=nullptr;
1648
1649 PatternMapIterator it(status);
1650 if (U_FAILURE(status)) { return nullptr; }
1651
1652 for (it.set(*patternMap); it.hasNext(); ) {
1653 DateTimeMatcher trial = it.next();
1654 if (trial.equals(skipMatcher)) {
1655 continue;
1656 }
1657 int32_t distance=source.getDistance(trial, includeMask, tempInfo);
1658 // Because we iterate over a map the order is undefined. Can change between implementations,
1659 // versions, and will very likely be different between Java and C/C++.
1660 // So if we have patterns with the same distance we also look at the missingFieldMask,
1661 // and we favour the smallest one. Because the field is a bitmask this technically means we
1662 // favour differences in the "least significant fields". For example we prefer the one with differences
1663 // in seconds field vs one with difference in the hours field.
1664 if (distance<bestDistance || (distance==bestDistance && bestMissingFieldMask<tempInfo.missingFieldMask)) {
1665 bestDistance=distance;
1666 bestMissingFieldMask=tempInfo.missingFieldMask;
1667 bestPattern=patternMap->getPatternFromSkeleton(*trial.getSkeletonPtr(), &specifiedSkeleton);
1668 missingFields->setTo(tempInfo);
1669 if (distance==0) {
1670 break;
1671 }
1672 }
1673 }
1674
1675 // If the best raw match had a specified skeleton and that skeleton was requested by the caller,
1676 // then return it too. This generally happens when the caller needs to pass that skeleton
1677 // through to adjustFieldTypes so the latter can do a better job.
1678 if (bestPattern && specifiedSkeletonPtr) {
1679 *specifiedSkeletonPtr = specifiedSkeleton;
1680 }
1681 return bestPattern;
1682}
1683
1684UnicodeString
1685DateTimePatternGenerator::adjustFieldTypes(const UnicodeString& pattern,
1686 const PtnSkeleton* specifiedSkeleton,
1687 int32_t flags,
1688 UDateTimePatternMatchOptions options) {
1689 UnicodeString newPattern;
1690 fp->set(pattern);
1691 for (int32_t i=0; i < fp->itemNumber; i++) {
1692 UnicodeString field = fp->items[i];
1693 if ( fp->isQuoteLiteral(field) ) {
1694
1695 UnicodeString quoteLiteral;
1696 fp->getQuoteLiteral(quoteLiteral, &i);
1697 newPattern += quoteLiteral;
1698 }
1699 else {
1700 if (fp->isPatternSeparator(field)) {
1701 newPattern+=field;
1702 continue;
1703 }
1704 int32_t canonicalIndex = fp->getCanonicalIndex(field);
1705 if (canonicalIndex < 0) {
1706 newPattern+=field;
1707 continue; // don't adjust
1708 }
1709 const dtTypeElem *row = &dtTypes[canonicalIndex];
1710 int32_t typeValue = row->field;
1711
1712 // handle day periods - with #13183, no longer need special handling here, integrated with normal types
1713
1714 if ((flags & kDTPGFixFractionalSeconds) != 0 && typeValue == UDATPG_SECOND_FIELD) {
1715 field += decimal;
1716 dtMatcher->skeleton.original.appendFieldTo(UDATPG_FRACTIONAL_SECOND_FIELD, field);
1717 } else if (dtMatcher->skeleton.type[typeValue]!=0) {
1718 // Here:
1719 // - "reqField" is the field from the originally requested skeleton after replacement
1720 // of metacharacters 'j', 'C' and 'J', with length "reqFieldLen".
1721 // - "field" is the field from the found pattern.
1722 //
1723 // The adjusted field should consist of characters from the originally requested
1724 // skeleton, except in the case of UDATPG_MONTH_FIELD or
1725 // UDATPG_WEEKDAY_FIELD or UDATPG_YEAR_FIELD, in which case it should consist
1726 // of characters from the found pattern. In some cases of UDATPG_HOUR_FIELD,
1727 // there is adjustment following the "defaultHourFormatChar". There is explanation
1728 // how it is done below.
1729 //
1730 // The length of the adjusted field (adjFieldLen) should match that in the originally
1731 // requested skeleton, except that in the following cases the length of the adjusted field
1732 // should match that in the found pattern (i.e. the length of this pattern field should
1733 // not be adjusted):
1734 // 1. typeValue is UDATPG_HOUR_FIELD/MINUTE/SECOND and the corresponding bit in options is
1735 // not set (ticket #7180). Note, we may want to implement a similar change for other
1736 // numeric fields (MM, dd, etc.) so the default behavior is to get locale preference for
1737 // field length, but options bits can be used to override this.
1738 // 2. There is a specified skeleton for the found pattern and one of the following is true:
1739 // a) The length of the field in the skeleton (skelFieldLen) is equal to reqFieldLen.
1740 // b) The pattern field is numeric and the requested field is not, or vice versa.
1741
1742 char16_t reqFieldChar = dtMatcher->skeleton.original.getFieldChar(typeValue);
1743 int32_t reqFieldLen = dtMatcher->skeleton.original.getFieldLength(typeValue);
1744 if (reqFieldChar == CAP_E((char16_t)0x0045) && reqFieldLen < 3)
1745 reqFieldLen = 3; // 1-3 for E are equivalent to 3 for c,e
1746 int32_t adjFieldLen = reqFieldLen;
1747 if ( (typeValue==UDATPG_HOUR_FIELD && (options & UDATPG_MATCH_HOUR_FIELD_LENGTH)==0) ||
1748 (typeValue==UDATPG_MINUTE_FIELD && (options & UDATPG_MATCH_MINUTE_FIELD_LENGTH)==0) ||
1749 (typeValue==UDATPG_SECOND_FIELD && (options & UDATPG_MATCH_SECOND_FIELD_LENGTH)==0) ) {
1750 adjFieldLen = field.length();
1751 } else if (specifiedSkeleton && reqFieldChar != LOW_C((char16_t)0x0063) && reqFieldChar != LOW_E((char16_t)0x0065)) {
1752 // (we skip this section for 'c' and 'e' because unlike the other characters considered in this function,
1753 // they have no minimum field length-- 'E' and 'EE' are equivalent to 'EEE', but 'e' and 'ee' are not
1754 // equivalent to 'eee' -- see the entries for "week day" in
1755 // https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table for more info)
1756 int32_t skelFieldLen = specifiedSkeleton->original.getFieldLength(typeValue);
1757 UBool patFieldIsNumeric = (row->type > 0);
1758 UBool reqFieldIsNumeric = (dtMatcher->skeleton.type[typeValue] > 0);
1759 if (skelFieldLen == reqFieldLen || (patFieldIsNumeric && !reqFieldIsNumeric) || (reqFieldIsNumeric && !patFieldIsNumeric)) {
1760 // don't adjust the field length in the found pattern
1761 adjFieldLen = field.length();
1762 }
1763 }
1764 char16_t c = (typeValue!= UDATPG_HOUR_FIELD
1765 && typeValue!= UDATPG_MONTH_FIELD
1766 && typeValue!= UDATPG_WEEKDAY_FIELD
1767 && (typeValue!= UDATPG_YEAR_FIELD || reqFieldChar==CAP_Y((char16_t)0x0059)))
1768 ? reqFieldChar
1769 : field.charAt(0);
1770 if (c == CAP_E((char16_t)0x0045) && adjFieldLen < 3) {
1771 c = LOW_E((char16_t)0x0065);
1772 }
1773 if (typeValue == UDATPG_HOUR_FIELD && fDefaultHourFormatChar != 0) {
1774 // The adjustment here is required to match spec (https://www.unicode.org/reports/tr35/tr35-dates.html#dfst-hour).
1775 // It is necessary to match the hour-cycle preferred by the Locale.
1776 // Given that, we need to do the following adjustments:
1777 // 1. When hour-cycle is h11 it should replace 'h' by 'K'.
1778 // 2. When hour-cycle is h23 it should replace 'H' by 'k'.
1779 // 3. When hour-cycle is h24 it should replace 'k' by 'H'.
1780 // 4. When hour-cycle is h12 it should replace 'K' by 'h'.
1781
1782 if ((flags & kDTPGSkeletonUsesCapJ) != 0 || reqFieldChar == fDefaultHourFormatChar) {
1783 c = fDefaultHourFormatChar;
1784 } else if (reqFieldChar == LOW_H((char16_t)0x0068) && fDefaultHourFormatChar == CAP_K((char16_t)0x004B)) {
1785 c = CAP_K((char16_t)0x004B);
1786 } else if (reqFieldChar == CAP_H((char16_t)0x0048) && fDefaultHourFormatChar == LOW_K((char16_t)0x006B)) {
1787 c = LOW_K((char16_t)0x006B);
1788 } else if (reqFieldChar == LOW_K((char16_t)0x006B) && fDefaultHourFormatChar == CAP_H((char16_t)0x0048)) {
1789 c = CAP_H((char16_t)0x0048);
1790 } else if (reqFieldChar == CAP_K((char16_t)0x004B) && fDefaultHourFormatChar == LOW_H((char16_t)0x0068)) {
1791 c = LOW_H((char16_t)0x0068);
1792 }
1793 }
1794
1795 field.remove();
1796 for (int32_t j=adjFieldLen; j>0; --j) {
1797 field += c;
1798 }
1799 }
1800 newPattern+=field;
1801 }
1802 }
1803 return newPattern;
1804}
1805
1806UnicodeString
1807DateTimePatternGenerator::getBestAppending(int32_t missingFields, int32_t flags, UErrorCode &status, UDateTimePatternMatchOptions options) {
1808 if (U_FAILURE(status)) {
1809 return {};
1810 }
1811 UnicodeString resultPattern, tempPattern;
1812 const UnicodeString* tempPatternPtr;
1813 int32_t lastMissingFieldMask=0;
1814 if (missingFields!=0) {
1815 resultPattern=UnicodeString();
1816 const PtnSkeleton* specifiedSkeleton=nullptr;
1817 tempPatternPtr = getBestRaw(*dtMatcher, missingFields, distanceInfo, status, &specifiedSkeleton);
1818 if (U_FAILURE(status)) {
1819 return {};
1820 }
1821 tempPattern = *tempPatternPtr;
1822 resultPattern = adjustFieldTypes(tempPattern, specifiedSkeleton, flags, options);
1823 if ( distanceInfo->missingFieldMask==0 ) {
1824 return resultPattern;
1825 }
1826 while (distanceInfo->missingFieldMask!=0) { // precondition: EVERY single field must work!
1827 if ( lastMissingFieldMask == distanceInfo->missingFieldMask ) {
1828 break; // cannot find the proper missing field
1829 }
1830 if (((distanceInfo->missingFieldMask & UDATPG_SECOND_AND_FRACTIONAL_MASK)==UDATPG_FRACTIONAL_MASK) &&
1831 ((missingFields & UDATPG_SECOND_AND_FRACTIONAL_MASK) == UDATPG_SECOND_AND_FRACTIONAL_MASK)) {
1832 resultPattern = adjustFieldTypes(resultPattern, specifiedSkeleton, flags | kDTPGFixFractionalSeconds, options);
1833 distanceInfo->missingFieldMask &= ~UDATPG_FRACTIONAL_MASK;
1834 continue;
1835 }
1836 int32_t startingMask = distanceInfo->missingFieldMask;
1837 tempPatternPtr = getBestRaw(*dtMatcher, distanceInfo->missingFieldMask, distanceInfo, status, &specifiedSkeleton);
1838 if (U_FAILURE(status)) {
1839 return {};
1840 }
1841 tempPattern = *tempPatternPtr;
1842 tempPattern = adjustFieldTypes(tempPattern, specifiedSkeleton, flags, options);
1843 int32_t foundMask=startingMask& ~distanceInfo->missingFieldMask;
1844 int32_t topField=getTopBitNumber(foundMask);
1845
1846 if (appendItemFormats[topField].length() != 0) {
1847 UnicodeString appendName;
1848 getAppendName(static_cast<UDateTimePatternField>(topField), appendName);
1849 const UnicodeString *values[3] = {
1850 &resultPattern,
1851 &tempPattern,
1852 &appendName
1853 };
1854 SimpleFormatter(appendItemFormats[topField], 2, 3, status).
1855 formatAndReplace(values, 3, resultPattern, nullptr, 0, status);
1856 }
1857 lastMissingFieldMask = distanceInfo->missingFieldMask;
1858 }
1859 }
1860 return resultPattern;
1861}
1862
1863int32_t
1864DateTimePatternGenerator::getTopBitNumber(int32_t foundMask) const {
1865 if ( foundMask==0 ) {
1866 return 0;
1867 }
1868 int32_t i=0;
1869 while (foundMask!=0) {
1870 foundMask >>=1;
1871 ++i;
1872 }
1873 if (i-1 >UDATPG_ZONE_FIELD) {
1874 return UDATPG_ZONE_FIELD;
1875 }
1876 else
1877 return i-1;
1878}
1879
1880void
1881DateTimePatternGenerator::setAvailableFormat(const UnicodeString &key, UErrorCode& err)
1882{
1883 fAvailableFormatKeyHash->puti(key, 1, err);
1884}
1885
1886UBool
1887DateTimePatternGenerator::isAvailableFormatSet(const UnicodeString &key) const {
1888 return fAvailableFormatKeyHash->geti(key) == 1;
1889}
1890
1891void
1892DateTimePatternGenerator::copyHashtable(Hashtable *other, UErrorCode &status) {
1893 if (other == nullptr || U_FAILURE(status)) {
1894 return;
1895 }
1896 if (fAvailableFormatKeyHash != nullptr) {
1897 delete fAvailableFormatKeyHash;
1898 fAvailableFormatKeyHash = nullptr;
1899 }
1900 initHashtable(status);
1901 if(U_FAILURE(status)){
1902 return;
1903 }
1904 int32_t pos = UHASH_FIRST(-1);
1905 const UHashElement* elem = nullptr;
1906 // walk through the hash table and create a deep clone
1907 while((elem = other->nextElement(pos))!= nullptr){
1908 const UHashTok otherKeyTok = elem->key;
1909 UnicodeString* otherKey = static_cast<UnicodeString*>(otherKeyTok.pointer);
1910 fAvailableFormatKeyHash->puti(*otherKey, 1, status);
1911 if(U_FAILURE(status)){
1912 return;
1913 }
1914 }
1915}
1916
1917StringEnumeration*
1918DateTimePatternGenerator::getSkeletons(UErrorCode& status) const {
1919 if (U_FAILURE(status)) {
1920 return nullptr;
1921 }
1922 if (U_FAILURE(internalErrorCode)) {
1923 status = internalErrorCode;
1924 return nullptr;
1925 }
1926 LocalPointer<StringEnumeration> skeletonEnumerator(
1927 new DTSkeletonEnumeration(*patternMap, DT_SKELETON, status), status);
1928
1929 return U_SUCCESS(status) ? skeletonEnumerator.orphan() : nullptr;
1930}
1931
1932const UnicodeString&
1933DateTimePatternGenerator::getPatternForSkeleton(const UnicodeString& skeleton) const {
1934 PtnElem *curElem;
1935
1936 if (skeleton.length() ==0) {
1937 return emptyString;
1938 }
1939 curElem = patternMap->getHeader(skeleton.charAt(0));
1940 while ( curElem != nullptr ) {
1941 if ( curElem->skeleton->getSkeleton()==skeleton ) {
1942 return curElem->pattern;
1943 }
1944 curElem = curElem->next.getAlias();
1945 }
1946 return emptyString;
1947}
1948
1949StringEnumeration*
1950DateTimePatternGenerator::getBaseSkeletons(UErrorCode& status) const {
1951 if (U_FAILURE(status)) {
1952 return nullptr;
1953 }
1954 if (U_FAILURE(internalErrorCode)) {
1955 status = internalErrorCode;
1956 return nullptr;
1957 }
1958 LocalPointer<StringEnumeration> baseSkeletonEnumerator(
1959 new DTSkeletonEnumeration(*patternMap, DT_BASESKELETON, status), status);
1960
1961 return U_SUCCESS(status) ? baseSkeletonEnumerator.orphan() : nullptr;
1962}
1963
1964StringEnumeration*
1965DateTimePatternGenerator::getRedundants(UErrorCode& status) {
1966 if (U_FAILURE(status)) { return nullptr; }
1967 if (U_FAILURE(internalErrorCode)) {
1968 status = internalErrorCode;
1969 return nullptr;
1970 }
1971 LocalPointer<StringEnumeration> output(new DTRedundantEnumeration(), status);
1972 if (U_FAILURE(status)) { return nullptr; }
1973 const UnicodeString *pattern;
1974 PatternMapIterator it(status);
1975 if (U_FAILURE(status)) { return nullptr; }
1976
1977 for (it.set(*patternMap); it.hasNext(); ) {
1978 DateTimeMatcher current = it.next();
1979 pattern = patternMap->getPatternFromSkeleton(*(it.getSkeleton()));
1980 if ( isCanonicalItem(*pattern) ) {
1981 continue;
1982 }
1983 if ( skipMatcher == nullptr ) {
1984 skipMatcher = new DateTimeMatcher(current);
1985 if (skipMatcher == nullptr) {
1986 status = U_MEMORY_ALLOCATION_ERROR;
1987 return nullptr;
1988 }
1989 }
1990 else {
1991 *skipMatcher = current;
1992 }
1993 UnicodeString trial = getBestPattern(current.getPattern(), status);
1994 if (U_FAILURE(status)) { return nullptr; }
1995 if (trial == *pattern) {
1996 ((DTRedundantEnumeration *)output.getAlias())->add(*pattern, status);
1997 if (U_FAILURE(status)) { return nullptr; }
1998 }
1999 if (current.equals(skipMatcher)) {
2000 continue;
2001 }
2002 }
2003 return output.orphan();
2004}
2005
2006UBool
2007DateTimePatternGenerator::isCanonicalItem(const UnicodeString& item) const {
2008 if ( item.length() != 1 ) {
2009 return false;
2010 }
2011 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i) {
2012 if (item.charAt(0)==Canonical_Items[i]) {
2013 return true;
2014 }
2015 }
2016 return false;
2017}
2018
2019
2020DateTimePatternGenerator*
2021DateTimePatternGenerator::clone() const {
2022 return new DateTimePatternGenerator(*this);
2023}
2024
2025PatternMap::PatternMap() {
2026 for (int32_t i=0; i < MAX_PATTERN_ENTRIES52; ++i ) {
2027 boot[i] = nullptr;
2028 }
2029 isDupAllowed = true;
2030}
2031
2032void
2033PatternMap::copyFrom(const PatternMap& other, UErrorCode& status) {
2034 if (U_FAILURE(status)) {
2035 return;
2036 }
2037 this->isDupAllowed = other.isDupAllowed;
2038 for (int32_t bootIndex = 0; bootIndex < MAX_PATTERN_ENTRIES52; ++bootIndex) {
2039 PtnElem *curElem, *otherElem, *prevElem=nullptr;
2040 otherElem = other.boot[bootIndex];
2041 while (otherElem != nullptr) {
2042 LocalPointer<PtnElem> newElem(new PtnElem(otherElem->basePattern, otherElem->pattern), status);
2043 if (U_FAILURE(status)) {
2044 return; // out of memory
2045 }
2046 newElem->skeleton.adoptInsteadAndCheckErrorCode(new PtnSkeleton(*(otherElem->skeleton)), status);
2047 if (U_FAILURE(status)) {
2048 return; // out of memory
2049 }
2050 newElem->skeletonWasSpecified = otherElem->skeletonWasSpecified;
2051
2052 // Release ownership from the LocalPointer of the PtnElem object.
2053 // The PtnElem will now be owned by either the boot (for the first entry in the linked-list)
2054 // or owned by the previous PtnElem object in the linked-list.
2055 curElem = newElem.orphan();
2056
2057 if (this->boot[bootIndex] == nullptr) {
2058 this->boot[bootIndex] = curElem;
2059 } else {
2060 if (prevElem != nullptr) {
2061 prevElem->next.adoptInstead(curElem);
2062 } else {
2063 UPRV_UNREACHABLE_EXITabort();
2064 }
2065 }
2066 prevElem = curElem;
2067 otherElem = otherElem->next.getAlias();
2068 }
2069
2070 }
2071}
2072
2073PtnElem*
2074PatternMap::getHeader(char16_t baseChar) const {
2075 PtnElem* curElem;
2076
2077 if ( (baseChar >= CAP_A((char16_t)0x0041)) && (baseChar <= CAP_Z((char16_t)0x005A)) ) {
2078 curElem = boot[baseChar-CAP_A((char16_t)0x0041)];
2079 }
2080 else {
2081 if ( (baseChar >=LOW_A((char16_t)0x0061)) && (baseChar <= LOW_Z((char16_t)0x007A)) ) {
2082 curElem = boot[26+baseChar-LOW_A((char16_t)0x0061)];
2083 }
2084 else {
2085 return nullptr;
2086 }
2087 }
2088 return curElem;
2089}
2090
2091PatternMap::~PatternMap() {
2092 for (int32_t i=0; i < MAX_PATTERN_ENTRIES52; ++i ) {
2093 if (boot[i] != nullptr ) {
2094 delete boot[i];
2095 boot[i] = nullptr;
2096 }
2097 }
2098} // PatternMap destructor
2099
2100void
2101PatternMap::add(const UnicodeString& basePattern,
2102 const PtnSkeleton& skeleton,
2103 const UnicodeString& value,// mapped pattern value
2104 UBool skeletonWasSpecified,
2105 UErrorCode &status) {
2106 char16_t baseChar = basePattern.charAt(0);
2107 PtnElem *curElem, *baseElem;
2108 status = U_ZERO_ERROR;
2109
2110 // the baseChar must be A-Z or a-z
2111 if ((baseChar >= CAP_A((char16_t)0x0041)) && (baseChar <= CAP_Z((char16_t)0x005A))) {
2112 baseElem = boot[baseChar-CAP_A((char16_t)0x0041)];
2113 }
2114 else {
2115 if ((baseChar >=LOW_A((char16_t)0x0061)) && (baseChar <= LOW_Z((char16_t)0x007A))) {
2116 baseElem = boot[26+baseChar-LOW_A((char16_t)0x0061)];
2117 }
2118 else {
2119 status = U_ILLEGAL_CHARACTER;
2120 return;
2121 }
2122 }
2123
2124 if (baseElem == nullptr) {
2125 LocalPointer<PtnElem> newElem(new PtnElem(basePattern, value), status);
2126 if (U_FAILURE(status)) {
2127 return; // out of memory
2128 }
2129 newElem->skeleton.adoptInsteadAndCheckErrorCode(new PtnSkeleton(skeleton), status);
2130 if (U_FAILURE(status)) {
2131 return; // out of memory
2132 }
2133 newElem->skeletonWasSpecified = skeletonWasSpecified;
2134 if (baseChar >= LOW_A((char16_t)0x0061)) {
2135 boot[26 + (baseChar - LOW_A((char16_t)0x0061))] = newElem.orphan(); // the boot array now owns the PtnElem.
2136 }
2137 else {
2138 boot[baseChar - CAP_A((char16_t)0x0041)] = newElem.orphan(); // the boot array now owns the PtnElem.
2139 }
2140 }
2141 if ( baseElem != nullptr ) {
2142 curElem = getDuplicateElem(basePattern, skeleton, baseElem);
2143
2144 if (curElem == nullptr) {
2145 // add new element to the list.
2146 curElem = baseElem;
2147 while( curElem -> next != nullptr )
2148 {
2149 curElem = curElem->next.getAlias();
2150 }
2151
2152 LocalPointer<PtnElem> newElem(new PtnElem(basePattern, value), status);
2153 if (U_FAILURE(status)) {
2154 return; // out of memory
2155 }
2156 newElem->skeleton.adoptInsteadAndCheckErrorCode(new PtnSkeleton(skeleton), status);
2157 if (U_FAILURE(status)) {
2158 return; // out of memory
2159 }
2160 newElem->skeletonWasSpecified = skeletonWasSpecified;
2161 curElem->next.adoptInstead(newElem.orphan());
2162 curElem = curElem->next.getAlias();
Value stored to 'curElem' is never read
2163 }
2164 else {
2165 // Pattern exists in the list already.
2166 if ( !isDupAllowed ) {
2167 return;
2168 }
2169 // Overwrite the value.
2170 curElem->pattern = value;
2171 // It was a bug that we were not doing the following previously,
2172 // though that bug hid other problems by making things partly work.
2173 curElem->skeletonWasSpecified = skeletonWasSpecified;
2174 }
2175 }
2176} // PatternMap::add
2177
2178// Find the pattern from the given basePattern string.
2179const UnicodeString *
2180PatternMap::getPatternFromBasePattern(const UnicodeString& basePattern, UBool& skeletonWasSpecified) const { // key to search for
2181 PtnElem *curElem;
2182
2183 if ((curElem=getHeader(basePattern.charAt(0)))==nullptr) {
2184 return nullptr; // no match
2185 }
2186
2187 do {
2188 if ( basePattern.compare(curElem->basePattern)==0 ) {
2189 skeletonWasSpecified = curElem->skeletonWasSpecified;
2190 return &(curElem->pattern);
2191 }
2192 curElem = curElem->next.getAlias();
2193 } while (curElem != nullptr);
2194
2195 return nullptr;
2196} // PatternMap::getFromBasePattern
2197
2198
2199// Find the pattern from the given skeleton.
2200// At least when this is called from getBestRaw & addPattern (in which case specifiedSkeletonPtr is non-nullptr),
2201// the comparison should be based on skeleton.original (which is unique and tied to the distance measurement in bestRaw)
2202// and not skeleton.baseOriginal (which is not unique); otherwise we may pick a different skeleton than the one with the
2203// optimum distance value in getBestRaw. When this is called from public getRedundants (specifiedSkeletonPtr is nullptr),
2204// for now it will continue to compare based on baseOriginal so as not to change the behavior unnecessarily.
2205const UnicodeString *
2206PatternMap::getPatternFromSkeleton(const PtnSkeleton& skeleton, const PtnSkeleton** specifiedSkeletonPtr) const { // key to search for
2207 PtnElem *curElem;
2208
2209 if (specifiedSkeletonPtr) {
2210 *specifiedSkeletonPtr = nullptr;
2211 }
2212
2213 // find boot entry
2214 char16_t baseChar = skeleton.getFirstChar();
2215 if ((curElem=getHeader(baseChar))==nullptr) {
2216 return nullptr; // no match
2217 }
2218
2219 do {
2220 UBool equal;
2221 if (specifiedSkeletonPtr != nullptr) { // called from DateTimePatternGenerator::getBestRaw or addPattern, use original
2222 equal = curElem->skeleton->original == skeleton.original;
2223 } else { // called from DateTimePatternGenerator::getRedundants, use baseOriginal
2224 equal = curElem->skeleton->baseOriginal == skeleton.baseOriginal;
2225 }
2226 if (equal) {
2227 if (specifiedSkeletonPtr && curElem->skeletonWasSpecified) {
2228 *specifiedSkeletonPtr = curElem->skeleton.getAlias();
2229 }
2230 return &(curElem->pattern);
2231 }
2232 curElem = curElem->next.getAlias();
2233 } while (curElem != nullptr);
2234
2235 return nullptr;
2236}
2237
2238UBool
2239PatternMap::equals(const PatternMap& other) const {
2240 if ( this==&other ) {
2241 return true;
2242 }
2243 for (int32_t bootIndex = 0; bootIndex < MAX_PATTERN_ENTRIES52; ++bootIndex) {
2244 if (boot[bootIndex] == other.boot[bootIndex]) {
2245 continue;
2246 }
2247 if ((boot[bootIndex] == nullptr) || (other.boot[bootIndex] == nullptr)) {
2248 return false;
2249 }
2250 PtnElem *otherElem = other.boot[bootIndex];
2251 PtnElem *myElem = boot[bootIndex];
2252 while ((otherElem != nullptr) || (myElem != nullptr)) {
2253 if ( myElem == otherElem ) {
2254 break;
2255 }
2256 if ((otherElem == nullptr) || (myElem == nullptr)) {
2257 return false;
2258 }
2259 if ( (myElem->basePattern != otherElem->basePattern) ||
2260 (myElem->pattern != otherElem->pattern) ) {
2261 return false;
2262 }
2263 if ((myElem->skeleton.getAlias() != otherElem->skeleton.getAlias()) &&
2264 !myElem->skeleton->equals(*(otherElem->skeleton))) {
2265 return false;
2266 }
2267 myElem = myElem->next.getAlias();
2268 otherElem = otherElem->next.getAlias();
2269 }
2270 }
2271 return true;
2272}
2273
2274// find any key existing in the mapping table already.
2275// return true if there is an existing key, otherwise return false.
2276PtnElem*
2277PatternMap::getDuplicateElem(
2278 const UnicodeString &basePattern,
2279 const PtnSkeleton &skeleton,
2280 PtnElem *baseElem) {
2281 PtnElem *curElem;
2282
2283 if ( baseElem == nullptr ) {
2284 return nullptr;
2285 }
2286 else {
2287 curElem = baseElem;
2288 }
2289 do {
2290 if ( basePattern.compare(curElem->basePattern)==0 ) {
2291 UBool isEqual = true;
2292 for (int32_t i = 0; i < UDATPG_FIELD_COUNT; ++i) {
2293 if (curElem->skeleton->type[i] != skeleton.type[i] ) {
2294 isEqual = false;
2295 break;
2296 }
2297 }
2298 if (isEqual) {
2299 return curElem;
2300 }
2301 }
2302 curElem = curElem->next.getAlias();
2303 } while( curElem != nullptr );
2304
2305 // end of the list
2306 return nullptr;
2307
2308} // PatternMap::getDuplicateElem
2309
2310DateTimeMatcher::DateTimeMatcher() {
2311}
2312
2313DateTimeMatcher::~DateTimeMatcher() {}
2314
2315DateTimeMatcher::DateTimeMatcher(const DateTimeMatcher& other) {
2316 copyFrom(other.skeleton);
2317}
2318
2319DateTimeMatcher& DateTimeMatcher::operator=(const DateTimeMatcher& other) {
2320 if (this != &other) {
2321 copyFrom(other.skeleton);
2322 }
2323 return *this;
2324}
2325
2326
2327void
2328DateTimeMatcher::set(const UnicodeString& pattern, FormatParser* fp) {
2329 PtnSkeleton localSkeleton;
2330 return set(pattern, fp, localSkeleton);
2331}
2332
2333void
2334DateTimeMatcher::set(const UnicodeString& pattern, FormatParser* fp, PtnSkeleton& skeletonResult) {
2335 int32_t i;
2336 for (i=0; i<UDATPG_FIELD_COUNT; ++i) {
2337 skeletonResult.type[i] = NONE0;
2338 }
2339 skeletonResult.original.clear();
2340 skeletonResult.baseOriginal.clear();
2341 skeletonResult.addedDefaultDayPeriod = false;
2342
2343 fp->set(pattern);
2344 for (i=0; i < fp->itemNumber; i++) {
2345 const UnicodeString& value = fp->items[i];
2346 // don't skip 'a' anymore, dayPeriod handled specially below
2347
2348 if ( fp->isQuoteLiteral(value) ) {
2349 UnicodeString quoteLiteral;
2350 fp->getQuoteLiteral(quoteLiteral, &i);
2351 continue;
2352 }
2353 int32_t canonicalIndex = fp->getCanonicalIndex(value);
2354 if (canonicalIndex < 0) {
2355 continue;
2356 }
2357 const dtTypeElem *row = &dtTypes[canonicalIndex];
2358 int32_t field = row->field;
2359 skeletonResult.original.populate(field, value);
2360 char16_t repeatChar = row->patternChar;
2361 int32_t repeatCount = row->minLen;
2362 skeletonResult.baseOriginal.populate(field, repeatChar, repeatCount);
2363 int16_t subField = row->type;
2364 if (row->type > 0) {
2365 U_ASSERT(value.length() < INT16_MAX)(static_cast <bool> (value.length() < (32767)) ? void
(0) : __assert_fail ("value.length() < (32767)", __builtin_FILE
(), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__))
;
2366 subField += static_cast<int16_t>(value.length());
2367 }
2368 skeletonResult.type[field] = subField;
2369 }
2370
2371 // #20739, we have a skeleton with minutes and milliseconds, but no seconds
2372 //
2373 // Theoretically we would need to check and fix all fields with "gaps":
2374 // for example year-day (no month), month-hour (no day), and so on, All the possible field combinations.
2375 // Plus some smartness: year + hour => should we add month, or add day-of-year?
2376 // What about month + day-of-week, or month + am/pm indicator.
2377 // I think beyond a certain point we should not try to fix bad developer input and try guessing what they mean.
2378 // Garbage in, garbage out.
2379 if (!skeletonResult.original.isFieldEmpty(UDATPG_MINUTE_FIELD)
2380 && !skeletonResult.original.isFieldEmpty(UDATPG_FRACTIONAL_SECOND_FIELD)
2381 && skeletonResult.original.isFieldEmpty(UDATPG_SECOND_FIELD)) {
2382 // Force the use of seconds
2383 for (i = 0; dtTypes[i].patternChar != 0; i++) {
2384 if (dtTypes[i].field == UDATPG_SECOND_FIELD) {
2385 // first entry for UDATPG_SECOND_FIELD
2386 skeletonResult.original.populate(UDATPG_SECOND_FIELD, dtTypes[i].patternChar, dtTypes[i].minLen);
2387 skeletonResult.baseOriginal.populate(UDATPG_SECOND_FIELD, dtTypes[i].patternChar, dtTypes[i].minLen);
2388 // We add value.length, same as above, when type is first initialized.
2389 // The value we want to "fake" here is "s", and 1 means "s".length()
2390 int16_t subField = dtTypes[i].type;
2391 skeletonResult.type[UDATPG_SECOND_FIELD] = (subField > 0) ? subField + 1 : subField;
2392 break;
2393 }
2394 }
2395 }
2396
2397 // #13183, handle special behavior for day period characters (a, b, B)
2398 if (!skeletonResult.original.isFieldEmpty(UDATPG_HOUR_FIELD)) {
2399 if (skeletonResult.original.getFieldChar(UDATPG_HOUR_FIELD)==LOW_H((char16_t)0x0068) || skeletonResult.original.getFieldChar(UDATPG_HOUR_FIELD)==CAP_K((char16_t)0x004B)) {
2400 // We have a skeleton with 12-hour-cycle format
2401 if (skeletonResult.original.isFieldEmpty(UDATPG_DAYPERIOD_FIELD)) {
2402 // But we do not have a day period in the skeleton; add the default DAYPERIOD (currently "a")
2403 for (i = 0; dtTypes[i].patternChar != 0; i++) {
2404 if ( dtTypes[i].field == UDATPG_DAYPERIOD_FIELD ) {
2405 // first entry for UDATPG_DAYPERIOD_FIELD
2406 skeletonResult.original.populate(UDATPG_DAYPERIOD_FIELD, dtTypes[i].patternChar, dtTypes[i].minLen);
2407 skeletonResult.baseOriginal.populate(UDATPG_DAYPERIOD_FIELD, dtTypes[i].patternChar, dtTypes[i].minLen);
2408 skeletonResult.type[UDATPG_DAYPERIOD_FIELD] = dtTypes[i].type;
2409 skeletonResult.addedDefaultDayPeriod = true;
2410 break;
2411 }
2412 }
2413 }
2414 } else {
2415 // Skeleton has 24-hour-cycle hour format and has dayPeriod, delete dayPeriod (i.e. ignore it)
2416 skeletonResult.original.clearField(UDATPG_DAYPERIOD_FIELD);
2417 skeletonResult.baseOriginal.clearField(UDATPG_DAYPERIOD_FIELD);
2418 skeletonResult.type[UDATPG_DAYPERIOD_FIELD] = NONE0;
2419 }
2420 }
2421 copyFrom(skeletonResult);
2422}
2423
2424void
2425DateTimeMatcher::getBasePattern(UnicodeString &result ) {
2426 result.remove(); // Reset the result first.
2427 skeleton.baseOriginal.appendTo(result);
2428}
2429
2430UnicodeString
2431DateTimeMatcher::getPattern() {
2432 UnicodeString result;
2433 return skeleton.original.appendTo(result);
2434}
2435
2436int32_t
2437DateTimeMatcher::getDistance(const DateTimeMatcher& other, int32_t includeMask, DistanceInfo& distanceInfo) const {
2438 int32_t result = 0;
2439 distanceInfo.clear();
2440 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i ) {
2441 int32_t myType = (includeMask&(1<<i))==0 ? 0 : skeleton.type[i];
2442 int32_t otherType = other.skeleton.type[i];
2443 if (myType==otherType) {
2444 continue;
2445 }
2446 if (myType==0) {// and other is not
2447 result += EXTRA_FIELD0x10000;
2448 distanceInfo.addExtra(i);
2449 }
2450 else {
2451 if (otherType==0) {
2452 result += MISSING_FIELD0x1000;
2453 distanceInfo.addMissing(i);
2454 }
2455 else {
2456 result += abs(myType - otherType);
2457 }
2458 }
2459
2460 }
2461 return result;
2462}
2463
2464void
2465DateTimeMatcher::copyFrom(const PtnSkeleton& newSkeleton) {
2466 skeleton.copyFrom(newSkeleton);
2467}
2468
2469void
2470DateTimeMatcher::copyFrom() {
2471 // same as clear
2472 skeleton.clear();
2473}
2474
2475UBool
2476DateTimeMatcher::equals(const DateTimeMatcher* other) const {
2477 if (other==nullptr) { return false; }
2478 return skeleton.original == other->skeleton.original;
2479}
2480
2481int32_t
2482DateTimeMatcher::getFieldMask() const {
2483 int32_t result = 0;
2484
2485 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i) {
2486 if (skeleton.type[i]!=0) {
2487 result |= (1<<i);
2488 }
2489 }
2490 return result;
2491}
2492
2493PtnSkeleton*
2494DateTimeMatcher::getSkeletonPtr() {
2495 return &skeleton;
2496}
2497
2498FormatParser::FormatParser () {
2499 status = START;
2500 itemNumber = 0;
2501}
2502
2503
2504FormatParser::~FormatParser () {
2505}
2506
2507
2508// Find the next token with the starting position and length
2509// Note: the startPos may
2510FormatParser::TokenStatus
2511FormatParser::setTokens(const UnicodeString& pattern, int32_t startPos, int32_t *len) {
2512 int32_t curLoc = startPos;
2513 if ( curLoc >= pattern.length()) {
2514 return DONE;
2515 }
2516 // check the current char is between A-Z or a-z
2517 do {
2518 char16_t c=pattern.charAt(curLoc);
2519 if ( (c>=CAP_A((char16_t)0x0041) && c<=CAP_Z((char16_t)0x005A)) || (c>=LOW_A((char16_t)0x0061) && c<=LOW_Z((char16_t)0x007A)) ) {
2520 curLoc++;
2521 }
2522 else {
2523 startPos = curLoc;
2524 *len=1;
2525 return ADD_TOKEN;
2526 }
2527
2528 if ( pattern.charAt(curLoc)!= pattern.charAt(startPos) ) {
2529 break; // not the same token
2530 }
2531 } while(curLoc <= pattern.length());
2532 *len = curLoc-startPos;
2533 return ADD_TOKEN;
2534}
2535
2536void
2537FormatParser::set(const UnicodeString& pattern) {
2538 int32_t startPos = 0;
2539 TokenStatus result = START;
2540 int32_t len = 0;
2541 itemNumber = 0;
2542
2543 do {
2544 result = setTokens( pattern, startPos, &len );
2545 if ( result == ADD_TOKEN )
2546 {
2547 items[itemNumber++] = UnicodeString(pattern, startPos, len );
2548 startPos += len;
2549 }
2550 else {
2551 break;
2552 }
2553 } while (result==ADD_TOKEN && itemNumber < MAX_DT_TOKEN50);
2554}
2555
2556int32_t
2557FormatParser::getCanonicalIndex(const UnicodeString& s, UBool strict) {
2558 int32_t len = s.length();
2559 if (len == 0) {
2560 return -1;
2561 }
2562 char16_t ch = s.charAt(0);
2563
2564 // Verify that all are the same character.
2565 for (int32_t l = 1; l < len; l++) {
2566 if (ch != s.charAt(l)) {
2567 return -1;
2568 }
2569 }
2570 int32_t i = 0;
2571 int32_t bestRow = -1;
2572 while (dtTypes[i].patternChar != 0x0000) {
2573 if ( dtTypes[i].patternChar != ch ) {
2574 ++i;
2575 continue;
2576 }
2577 bestRow = i;
2578 if (dtTypes[i].patternChar != dtTypes[i+1].patternChar) {
2579 return i;
2580 }
2581 if (dtTypes[i+1].minLen <= len) {
2582 ++i;
2583 continue;
2584 }
2585 return i;
2586 }
2587 return strict ? -1 : bestRow;
2588}
2589
2590UBool
2591FormatParser::isQuoteLiteral(const UnicodeString& s) {
2592 return s.charAt(0) == SINGLE_QUOTE((char16_t)0x0027);
2593}
2594
2595// This function assumes the current itemIndex points to the quote literal.
2596// Please call isQuoteLiteral prior to this function.
2597void
2598FormatParser::getQuoteLiteral(UnicodeString& quote, int32_t *itemIndex) {
2599 int32_t i = *itemIndex;
2600
2601 quote.remove();
2602 if (items[i].charAt(0)==SINGLE_QUOTE((char16_t)0x0027)) {
2603 quote += items[i];
2604 ++i;
2605 }
2606 while ( i < itemNumber ) {
2607 if ( items[i].charAt(0)==SINGLE_QUOTE((char16_t)0x0027) ) {
2608 if ( (i+1<itemNumber) && (items[i+1].charAt(0)==SINGLE_QUOTE((char16_t)0x0027))) {
2609 // two single quotes e.g. 'o''clock'
2610 quote += items[i++];
2611 quote += items[i++];
2612 continue;
2613 }
2614 else {
2615 quote += items[i];
2616 break;
2617 }
2618 }
2619 else {
2620 quote += items[i];
2621 }
2622 ++i;
2623 }
2624 *itemIndex=i;
2625}
2626
2627UBool
2628FormatParser::isPatternSeparator(const UnicodeString& field) const {
2629 for (int32_t i=0; i<field.length(); ++i ) {
2630 char16_t c= field.charAt(i);
2631 if ( (c==SINGLE_QUOTE((char16_t)0x0027)) || (c==BACKSLASH((char16_t)0x005C)) || (c==SPACE((char16_t)0x0020)) || (c==COLON((char16_t)0x003A)) ||
2632 (c==QUOTATION_MARK((char16_t)0x0022)) || (c==COMMA((char16_t)0x002C)) || (c==HYPHEN((char16_t)0x002D)) ||(items[i].charAt(0)==DOT((char16_t)0x002E)) ) {
2633 continue;
2634 }
2635 else {
2636 return false;
2637 }
2638 }
2639 return true;
2640}
2641
2642DistanceInfo::~DistanceInfo() {}
2643
2644void
2645DistanceInfo::setTo(const DistanceInfo& other) {
2646 missingFieldMask = other.missingFieldMask;
2647 extraFieldMask= other.extraFieldMask;
2648}
2649
2650PatternMapIterator::PatternMapIterator(UErrorCode& status) :
2651 bootIndex(0), nodePtr(nullptr), matcher(nullptr), patternMap(nullptr)
2652{
2653 if (U_FAILURE(status)) { return; }
2654 matcher.adoptInsteadAndCheckErrorCode(new DateTimeMatcher(), status);
2655}
2656
2657PatternMapIterator::~PatternMapIterator() {
2658}
2659
2660void
2661PatternMapIterator::set(PatternMap& newPatternMap) {
2662 this->patternMap=&newPatternMap;
2663}
2664
2665PtnSkeleton*
2666PatternMapIterator::getSkeleton() const {
2667 if ( nodePtr == nullptr ) {
2668 return nullptr;
2669 }
2670 else {
2671 return nodePtr->skeleton.getAlias();
2672 }
2673}
2674
2675UBool
2676PatternMapIterator::hasNext() const {
2677 int32_t headIndex = bootIndex;
2678 PtnElem *curPtr = nodePtr;
2679
2680 if (patternMap==nullptr) {
2681 return false;
2682 }
2683 while ( headIndex < MAX_PATTERN_ENTRIES52 ) {
2684 if ( curPtr != nullptr ) {
2685 if ( curPtr->next != nullptr ) {
2686 return true;
2687 }
2688 else {
2689 headIndex++;
2690 curPtr=nullptr;
2691 continue;
2692 }
2693 }
2694 else {
2695 if ( patternMap->boot[headIndex] != nullptr ) {
2696 return true;
2697 }
2698 else {
2699 headIndex++;
2700 continue;
2701 }
2702 }
2703 }
2704 return false;
2705}
2706
2707DateTimeMatcher&
2708PatternMapIterator::next() {
2709 while ( bootIndex < MAX_PATTERN_ENTRIES52 ) {
2710 if ( nodePtr != nullptr ) {
2711 if ( nodePtr->next != nullptr ) {
2712 nodePtr = nodePtr->next.getAlias();
2713 break;
2714 }
2715 else {
2716 bootIndex++;
2717 nodePtr=nullptr;
2718 continue;
2719 }
2720 }
2721 else {
2722 if ( patternMap->boot[bootIndex] != nullptr ) {
2723 nodePtr = patternMap->boot[bootIndex];
2724 break;
2725 }
2726 else {
2727 bootIndex++;
2728 continue;
2729 }
2730 }
2731 }
2732 if (nodePtr!=nullptr) {
2733 matcher->copyFrom(*nodePtr->skeleton);
2734 }
2735 else {
2736 matcher->copyFrom();
2737 }
2738 return *matcher;
2739}
2740
2741
2742SkeletonFields::SkeletonFields() {
2743 // Set initial values to zero
2744 clear();
2745}
2746
2747void SkeletonFields::clear() {
2748 uprv_memset(chars, 0, sizeof(chars)):: memset(chars, 0, sizeof(chars));
2749 uprv_memset(lengths, 0, sizeof(lengths)):: memset(lengths, 0, sizeof(lengths));
2750}
2751
2752void SkeletonFields::copyFrom(const SkeletonFields& other) {
2753 uprv_memcpy(chars, other.chars, sizeof(chars))do { clang diagnostic push clang diagnostic ignored "-Waddress"
(static_cast <bool> (chars != __null) ? void (0) : __assert_fail
("chars != __null", __builtin_FILE (), __builtin_LINE (), __extension__
__PRETTY_FUNCTION__)); (static_cast <bool> (other.chars
!= __null) ? void (0) : __assert_fail ("other.chars != __null"
, __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__
)); clang diagnostic pop :: memcpy(chars, other.chars, sizeof
(chars)); } while (false)
;
2754 uprv_memcpy(lengths, other.lengths, sizeof(lengths))do { clang diagnostic push clang diagnostic ignored "-Waddress"
(static_cast <bool> (lengths != __null) ? void (0) : __assert_fail
("lengths != __null", __builtin_FILE (), __builtin_LINE (), __extension__
__PRETTY_FUNCTION__)); (static_cast <bool> (other.lengths
!= __null) ? void (0) : __assert_fail ("other.lengths != __null"
, __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__
)); clang diagnostic pop :: memcpy(lengths, other.lengths, sizeof
(lengths)); } while (false)
;
2755}
2756
2757void SkeletonFields::clearField(int32_t field) {
2758 chars[field] = 0;
2759 lengths[field] = 0;
2760}
2761
2762char16_t SkeletonFields::getFieldChar(int32_t field) const {
2763 return chars[field];
2764}
2765
2766int32_t SkeletonFields::getFieldLength(int32_t field) const {
2767 return lengths[field];
2768}
2769
2770void SkeletonFields::populate(int32_t field, const UnicodeString& value) {
2771 populate(field, value.charAt(0), value.length());
2772}
2773
2774void SkeletonFields::populate(int32_t field, char16_t ch, int32_t length) {
2775 chars[field] = static_cast<int8_t>(ch);
2776 lengths[field] = static_cast<int8_t>(length);
2777}
2778
2779UBool SkeletonFields::isFieldEmpty(int32_t field) const {
2780 return lengths[field] == 0;
2781}
2782
2783UnicodeString& SkeletonFields::appendTo(UnicodeString& string) const {
2784 for (int32_t i = 0; i < UDATPG_FIELD_COUNT; ++i) {
2785 appendFieldTo(i, string);
2786 }
2787 return string;
2788}
2789
2790UnicodeString& SkeletonFields::appendFieldTo(int32_t field, UnicodeString& string) const {
2791 char16_t ch(chars[field]);
2792 int32_t length = static_cast<int32_t>(lengths[field]);
2793
2794 for (int32_t i=0; i<length; i++) {
2795 string += ch;
2796 }
2797 return string;
2798}
2799
2800char16_t SkeletonFields::getFirstChar() const {
2801 for (int32_t i = 0; i < UDATPG_FIELD_COUNT; ++i) {
2802 if (lengths[i] != 0) {
2803 return chars[i];
2804 }
2805 }
2806 return '\0';
2807}
2808
2809
2810PtnSkeleton::PtnSkeleton()
2811 : addedDefaultDayPeriod(false) {
2812}
2813
2814PtnSkeleton::PtnSkeleton(const PtnSkeleton& other) {
2815 copyFrom(other);
2816}
2817
2818void PtnSkeleton::copyFrom(const PtnSkeleton& other) {
2819 uprv_memcpy(type, other.type, sizeof(type))do { clang diagnostic push clang diagnostic ignored "-Waddress"
(static_cast <bool> (type != __null) ? void (0) : __assert_fail
("type != __null", __builtin_FILE (), __builtin_LINE (), __extension__
__PRETTY_FUNCTION__)); (static_cast <bool> (other.type
!= __null) ? void (0) : __assert_fail ("other.type != __null"
, __builtin_FILE (), __builtin_LINE (), __extension__ __PRETTY_FUNCTION__
)); clang diagnostic pop :: memcpy(type, other.type, sizeof(
type)); } while (false)
;
2820 original.copyFrom(other.original);
2821 baseOriginal.copyFrom(other.baseOriginal);
2822 addedDefaultDayPeriod = other.addedDefaultDayPeriod;
2823}
2824
2825void PtnSkeleton::clear() {
2826 uprv_memset(type, 0, sizeof(type)):: memset(type, 0, sizeof(type));
2827 original.clear();
2828 baseOriginal.clear();
2829}
2830
2831UBool
2832PtnSkeleton::equals(const PtnSkeleton& other) const {
2833 return (original == other.original)
2834 && (baseOriginal == other.baseOriginal)
2835 && (uprv_memcmp(type, other.type, sizeof(type)):: memcmp(type, other.type,sizeof(type)) == 0);
2836}
2837
2838UnicodeString
2839PtnSkeleton::getSkeleton() const {
2840 UnicodeString result;
2841 result = original.appendTo(result);
2842 int32_t pos;
2843 if (addedDefaultDayPeriod && (pos = result.indexOf(LOW_A((char16_t)0x0061))) >= 0) {
2844 // for backward compatibility: if DateTimeMatcher.set added a single 'a' that
2845 // was not in the provided skeleton, remove it here before returning skeleton.
2846 result.remove(pos, 1);
2847 }
2848 return result;
2849}
2850
2851UnicodeString
2852PtnSkeleton::getBaseSkeleton() const {
2853 UnicodeString result;
2854 result = baseOriginal.appendTo(result);
2855 int32_t pos;
2856 if (addedDefaultDayPeriod && (pos = result.indexOf(LOW_A((char16_t)0x0061))) >= 0) {
2857 // for backward compatibility: if DateTimeMatcher.set added a single 'a' that
2858 // was not in the provided skeleton, remove it here before returning skeleton.
2859 result.remove(pos, 1);
2860 }
2861 return result;
2862}
2863
2864char16_t
2865PtnSkeleton::getFirstChar() const {
2866 return baseOriginal.getFirstChar();
2867}
2868
2869PtnSkeleton::~PtnSkeleton() {
2870}
2871
2872PtnElem::PtnElem(const UnicodeString &basePat, const UnicodeString &pat) :
2873 basePattern(basePat), skeleton(nullptr), pattern(pat), next(nullptr)
2874{
2875}
2876
2877PtnElem::~PtnElem() {
2878}
2879
2880DTSkeletonEnumeration::DTSkeletonEnumeration(PatternMap& patternMap, dtStrEnum type, UErrorCode& status) : fSkeletons(nullptr) {
2881 PtnElem *curElem;
2882 PtnSkeleton *curSkeleton;
2883 UnicodeString s;
2884 int32_t bootIndex;
2885
2886 pos=0;
2887 fSkeletons.adoptInsteadAndCheckErrorCode(new UVector(status), status);
2888 if (U_FAILURE(status)) {
2889 return;
2890 }
2891
2892 for (bootIndex=0; bootIndex<MAX_PATTERN_ENTRIES52; ++bootIndex ) {
2893 curElem = patternMap.boot[bootIndex];
2894 while (curElem!=nullptr) {
2895 switch(type) {
2896 case DT_BASESKELETON:
2897 s=curElem->basePattern;
2898 break;
2899 case DT_PATTERN:
2900 s=curElem->pattern;
2901 break;
2902 case DT_SKELETON:
2903 curSkeleton=curElem->skeleton.getAlias();
2904 s=curSkeleton->getSkeleton();
2905 break;
2906 }
2907 if ( !isCanonicalItem(s) ) {
2908 LocalPointer<UnicodeString> newElem(s.clone(), status);
2909 if (U_FAILURE(status)) {
2910 return;
2911 }
2912 fSkeletons->addElement(newElem.getAlias(), status);
2913 if (U_FAILURE(status)) {
2914 fSkeletons.adoptInstead(nullptr);
2915 return;
2916 }
2917 newElem.orphan(); // fSkeletons vector now owns the UnicodeString (although it
2918 // does not use a deleter function to manage the ownership).
2919 }
2920 curElem = curElem->next.getAlias();
2921 }
2922 }
2923 if ((bootIndex==MAX_PATTERN_ENTRIES52) && (curElem!=nullptr) ) {
2924 status = U_BUFFER_OVERFLOW_ERROR;
2925 }
2926}
2927
2928const UnicodeString*
2929DTSkeletonEnumeration::snext(UErrorCode& status) {
2930 if (U_SUCCESS(status) && fSkeletons.isValid() && pos < fSkeletons->size()) {
2931 return static_cast<const UnicodeString*>(fSkeletons->elementAt(pos++));
2932 }
2933 return nullptr;
2934}
2935
2936void
2937DTSkeletonEnumeration::reset(UErrorCode& /*status*/) {
2938 pos=0;
2939}
2940
2941int32_t
2942DTSkeletonEnumeration::count(UErrorCode& /*status*/) const {
2943 return (fSkeletons.isNull()) ? 0 : fSkeletons->size();
2944}
2945
2946UBool
2947DTSkeletonEnumeration::isCanonicalItem(const UnicodeString& item) {
2948 if ( item.length() != 1 ) {
2949 return false;
2950 }
2951 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i) {
2952 if (item.charAt(0)==Canonical_Items[i]) {
2953 return true;
2954 }
2955 }
2956 return false;
2957}
2958
2959DTSkeletonEnumeration::~DTSkeletonEnumeration() {
2960 UnicodeString *s;
2961 if (fSkeletons.isValid()) {
2962 for (int32_t i = 0; i < fSkeletons->size(); ++i) {
2963 if ((s = static_cast<UnicodeString*>(fSkeletons->elementAt(i))) != nullptr) {
2964 delete s;
2965 }
2966 }
2967 }
2968}
2969
2970DTRedundantEnumeration::DTRedundantEnumeration() : pos(0), fPatterns(nullptr) {
2971}
2972
2973void
2974DTRedundantEnumeration::add(const UnicodeString& pattern, UErrorCode& status) {
2975 if (U_FAILURE(status)) { return; }
2976 if (fPatterns.isNull()) {
2977 fPatterns.adoptInsteadAndCheckErrorCode(new UVector(status), status);
2978 if (U_FAILURE(status)) {
2979 return;
2980 }
2981 }
2982 LocalPointer<UnicodeString> newElem(new UnicodeString(pattern), status);
2983 if (U_FAILURE(status)) {
2984 return;
2985 }
2986 fPatterns->addElement(newElem.getAlias(), status);
2987 if (U_FAILURE(status)) {
2988 fPatterns.adoptInstead(nullptr);
2989 return;
2990 }
2991 newElem.orphan(); // fPatterns now owns the string, although a UVector
2992 // deleter function is not used to manage that ownership.
2993}
2994
2995const UnicodeString*
2996DTRedundantEnumeration::snext(UErrorCode& status) {
2997 if (U_SUCCESS(status) && fPatterns.isValid() && pos < fPatterns->size()) {
2998 return static_cast<const UnicodeString*>(fPatterns->elementAt(pos++));
2999 }
3000 return nullptr;
3001}
3002
3003void
3004DTRedundantEnumeration::reset(UErrorCode& /*status*/) {
3005 pos=0;
3006}
3007
3008int32_t
3009DTRedundantEnumeration::count(UErrorCode& /*status*/) const {
3010 return (fPatterns.isNull()) ? 0 : fPatterns->size();
3011}
3012
3013UBool
3014DTRedundantEnumeration::isCanonicalItem(const UnicodeString& item) const {
3015 if ( item.length() != 1 ) {
3016 return false;
3017 }
3018 for (int32_t i=0; i<UDATPG_FIELD_COUNT; ++i) {
3019 if (item.charAt(0)==Canonical_Items[i]) {
3020 return true;
3021 }
3022 }
3023 return false;
3024}
3025
3026DTRedundantEnumeration::~DTRedundantEnumeration() {
3027 UnicodeString *s;
3028 if (fPatterns.isValid()) {
3029 for (int32_t i = 0; i < fPatterns->size(); ++i) {
3030 if ((s = static_cast<UnicodeString*>(fPatterns->elementAt(i))) != nullptr) {
3031 delete s;
3032 }
3033 }
3034 }
3035}
3036
3037U_NAMESPACE_END}
3038
3039
3040#endif /* #if !UCONFIG_NO_FORMATTING */
3041
3042//eof