1/*
2 * Copyright (C) 2011,2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "LocaleICU.h"
33
34#include "LocalizedStrings.h"
35#include <limits>
36#include <unicode/udatpg.h>
37#include <unicode/uloc.h>
38#include <wtf/DateMath.h>
39#include <wtf/text/StringBuilder.h>
40
41
42namespace WebCore {
43using namespace icu;
44
45std::unique_ptr<Locale> Locale::create(const AtomicString& locale)
46{
47 return std::make_unique<LocaleICU>(locale.string().utf8().data());
48}
49
50LocaleICU::LocaleICU(const char* locale)
51 : m_locale(locale)
52{
53}
54
55LocaleICU::~LocaleICU()
56{
57#if !UCONFIG_NO_FORMATTING
58 unum_close(m_numberFormat);
59#endif
60#if ENABLE(DATE_AND_TIME_INPUT_TYPES)
61 udat_close(m_shortDateFormat);
62 udat_close(m_mediumTimeFormat);
63 udat_close(m_shortTimeFormat);
64#endif
65}
66
67#if !UCONFIG_NO_FORMATTING
68String LocaleICU::decimalSymbol(UNumberFormatSymbol symbol)
69{
70 UErrorCode status = U_ZERO_ERROR;
71 int32_t bufferLength = unum_getSymbol(m_numberFormat, symbol, 0, 0, &status);
72 ASSERT(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR);
73 if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR)
74 return String();
75 Vector<UChar> buffer(bufferLength);
76 status = U_ZERO_ERROR;
77 unum_getSymbol(m_numberFormat, symbol, buffer.data(), bufferLength, &status);
78 if (U_FAILURE(status))
79 return String();
80 return String::adopt(WTFMove(buffer));
81}
82
83String LocaleICU::decimalTextAttribute(UNumberFormatTextAttribute tag)
84{
85 UErrorCode status = U_ZERO_ERROR;
86 int32_t bufferLength = unum_getTextAttribute(m_numberFormat, tag, 0, 0, &status);
87 ASSERT(U_SUCCESS(status) || status == U_BUFFER_OVERFLOW_ERROR);
88 if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR)
89 return String();
90 Vector<UChar> buffer(bufferLength);
91 status = U_ZERO_ERROR;
92 unum_getTextAttribute(m_numberFormat, tag, buffer.data(), bufferLength, &status);
93 ASSERT(U_SUCCESS(status));
94 if (U_FAILURE(status))
95 return String();
96 return String::adopt(WTFMove(buffer));
97}
98#endif
99
100void LocaleICU::initializeLocaleData()
101{
102#if !UCONFIG_NO_FORMATTING
103 if (m_didCreateDecimalFormat)
104 return;
105 m_didCreateDecimalFormat = true;
106 UErrorCode status = U_ZERO_ERROR;
107 m_numberFormat = unum_open(UNUM_DECIMAL, 0, 0, m_locale.data(), 0, &status);
108 if (!U_SUCCESS(status))
109 return;
110
111 Vector<String, DecimalSymbolsSize> symbols;
112 symbols.append(decimalSymbol(UNUM_ZERO_DIGIT_SYMBOL));
113 symbols.append(decimalSymbol(UNUM_ONE_DIGIT_SYMBOL));
114 symbols.append(decimalSymbol(UNUM_TWO_DIGIT_SYMBOL));
115 symbols.append(decimalSymbol(UNUM_THREE_DIGIT_SYMBOL));
116 symbols.append(decimalSymbol(UNUM_FOUR_DIGIT_SYMBOL));
117 symbols.append(decimalSymbol(UNUM_FIVE_DIGIT_SYMBOL));
118 symbols.append(decimalSymbol(UNUM_SIX_DIGIT_SYMBOL));
119 symbols.append(decimalSymbol(UNUM_SEVEN_DIGIT_SYMBOL));
120 symbols.append(decimalSymbol(UNUM_EIGHT_DIGIT_SYMBOL));
121 symbols.append(decimalSymbol(UNUM_NINE_DIGIT_SYMBOL));
122 symbols.append(decimalSymbol(UNUM_DECIMAL_SEPARATOR_SYMBOL));
123 symbols.append(decimalSymbol(UNUM_GROUPING_SEPARATOR_SYMBOL));
124 ASSERT(symbols.size() == DecimalSymbolsSize);
125 setLocaleData(symbols, decimalTextAttribute(UNUM_POSITIVE_PREFIX), decimalTextAttribute(UNUM_POSITIVE_SUFFIX), decimalTextAttribute(UNUM_NEGATIVE_PREFIX), decimalTextAttribute(UNUM_NEGATIVE_SUFFIX));
126#endif
127}
128
129#if ENABLE(DATE_AND_TIME_INPUT_TYPES)
130bool LocaleICU::initializeShortDateFormat()
131{
132 if (m_didCreateShortDateFormat)
133 return m_shortDateFormat;
134 m_shortDateFormat = openDateFormat(UDAT_NONE, UDAT_SHORT);
135 m_didCreateShortDateFormat = true;
136 return m_shortDateFormat;
137}
138
139UDateFormat* LocaleICU::openDateFormat(UDateFormatStyle timeStyle, UDateFormatStyle dateStyle) const
140{
141 const UChar gmtTimezone[3] = {'G', 'M', 'T'};
142 UErrorCode status = U_ZERO_ERROR;
143 return udat_open(timeStyle, dateStyle, m_locale.data(), gmtTimezone, WTF_ARRAY_LENGTH(gmtTimezone), 0, -1, &status);
144}
145
146static String getDateFormatPattern(const UDateFormat* dateFormat)
147{
148 if (!dateFormat)
149 return emptyString();
150
151 UErrorCode status = U_ZERO_ERROR;
152 int32_t length = udat_toPattern(dateFormat, TRUE, 0, 0, &status);
153 if (status != U_BUFFER_OVERFLOW_ERROR || !length)
154 return emptyString();
155 Vector<UChar> buffer(length);
156 status = U_ZERO_ERROR;
157 udat_toPattern(dateFormat, TRUE, buffer.data(), length, &status);
158 if (U_FAILURE(status))
159 return emptyString();
160 return String::adopt(WTFMove(buffer));
161}
162
163std::unique_ptr<Vector<String>> LocaleICU::createLabelVector(const UDateFormat* dateFormat, UDateFormatSymbolType type, int32_t startIndex, int32_t size)
164{
165 if (!dateFormat)
166 return std::make_unique<Vector<String>>();
167 if (udat_countSymbols(dateFormat, type) != startIndex + size)
168 return std::make_unique<Vector<String>>();
169
170 auto labels = std::make_unique<Vector<String>>();
171 labels->reserveCapacity(size);
172 for (int32_t i = 0; i < size; ++i) {
173 UErrorCode status = U_ZERO_ERROR;
174 int32_t length = udat_getSymbols(dateFormat, type, startIndex + i, 0, 0, &status);
175 if (status != U_BUFFER_OVERFLOW_ERROR)
176 return std::make_unique<Vector<String>>();
177 Vector<UChar> buffer(length);
178 status = U_ZERO_ERROR;
179 udat_getSymbols(dateFormat, type, startIndex + i, buffer.data(), length, &status);
180 if (U_FAILURE(status))
181 return std::make_unique<Vector<String>>();
182 labels->append(String::adopt(WTFMove(buffer)));
183 }
184 return WTFMove(labels);
185}
186
187static std::unique_ptr<Vector<String>> createFallbackMonthLabels()
188{
189 auto labels = std::make_unique<Vector<String>>();
190 labels->reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthFullName));
191 for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthFullName); ++i)
192 labels->append(WTF::monthFullName[i]);
193 return WTFMove(labels);
194}
195
196const Vector<String>& LocaleICU::monthLabels()
197{
198 if (m_monthLabels)
199 return *m_monthLabels;
200 if (initializeShortDateFormat()) {
201 m_monthLabels = createLabelVector(m_shortDateFormat, UDAT_MONTHS, UCAL_JANUARY, 12);
202 if (m_monthLabels)
203 return *m_monthLabels;
204 }
205 m_monthLabels = createFallbackMonthLabels();
206 return *m_monthLabels;
207}
208
209static std::unique_ptr<Vector<String>> createFallbackAMPMLabels()
210{
211 auto labels = std::make_unique<Vector<String>>();
212 labels->reserveCapacity(2);
213 labels->append("AM");
214 labels->append("PM");
215 return WTFMove(labels);
216}
217
218void LocaleICU::initializeDateTimeFormat()
219{
220 if (m_didCreateTimeFormat)
221 return;
222
223 // We assume ICU medium time pattern and short time pattern are compatible
224 // with LDML, because ICU specific pattern character "V" doesn't appear
225 // in both medium and short time pattern.
226 m_mediumTimeFormat = openDateFormat(UDAT_MEDIUM, UDAT_NONE);
227 m_timeFormatWithSeconds = getDateFormatPattern(m_mediumTimeFormat);
228
229 m_shortTimeFormat = openDateFormat(UDAT_SHORT, UDAT_NONE);
230 m_timeFormatWithoutSeconds = getDateFormatPattern(m_shortTimeFormat);
231
232 UDateFormat* dateTimeFormatWithSeconds = openDateFormat(UDAT_MEDIUM, UDAT_SHORT);
233 m_dateTimeFormatWithSeconds = getDateFormatPattern(dateTimeFormatWithSeconds);
234 udat_close(dateTimeFormatWithSeconds);
235
236 UDateFormat* dateTimeFormatWithoutSeconds = openDateFormat(UDAT_SHORT, UDAT_SHORT);
237 m_dateTimeFormatWithoutSeconds = getDateFormatPattern(dateTimeFormatWithoutSeconds);
238 udat_close(dateTimeFormatWithoutSeconds);
239
240 auto timeAMPMLabels = createLabelVector(m_mediumTimeFormat, UDAT_AM_PMS, UCAL_AM, 2);
241 if (!timeAMPMLabels)
242 timeAMPMLabels = createFallbackAMPMLabels();
243 m_timeAMPMLabels = *timeAMPMLabels;
244
245 m_didCreateTimeFormat = true;
246}
247
248String LocaleICU::dateFormat()
249{
250 if (!m_dateFormat.isNull())
251 return m_dateFormat;
252 if (!initializeShortDateFormat())
253 return "yyyy-MM-dd"_s;
254 m_dateFormat = getDateFormatPattern(m_shortDateFormat);
255 return m_dateFormat;
256}
257
258static String getFormatForSkeleton(const char* locale, const UChar* skeleton, int32_t skeletonLength)
259{
260 String format = "yyyy-MM"_s;
261 UErrorCode status = U_ZERO_ERROR;
262 UDateTimePatternGenerator* patternGenerator = udatpg_open(locale, &status);
263 if (!patternGenerator)
264 return format;
265 status = U_ZERO_ERROR;
266 int32_t length = udatpg_getBestPattern(patternGenerator, skeleton, skeletonLength, 0, 0, &status);
267 if (status == U_BUFFER_OVERFLOW_ERROR && length) {
268 Vector<UChar> buffer(length);
269 status = U_ZERO_ERROR;
270 udatpg_getBestPattern(patternGenerator, skeleton, skeletonLength, buffer.data(), length, &status);
271 if (U_SUCCESS(status))
272 format = String::adopt(WTFMove(buffer));
273 }
274 udatpg_close(patternGenerator);
275 return format;
276}
277
278String LocaleICU::monthFormat()
279{
280 if (!m_monthFormat.isNull())
281 return m_monthFormat;
282 // Gets a format for "MMMM" because Windows API always provides formats for
283 // "MMMM" in some locales.
284 const UChar skeleton[] = { 'y', 'y', 'y', 'y', 'M', 'M', 'M', 'M' };
285 m_monthFormat = getFormatForSkeleton(m_locale.data(), skeleton, WTF_ARRAY_LENGTH(skeleton));
286 return m_monthFormat;
287}
288
289String LocaleICU::shortMonthFormat()
290{
291 if (!m_shortMonthFormat.isNull())
292 return m_shortMonthFormat;
293 const UChar skeleton[] = { 'y', 'y', 'y', 'y', 'M', 'M', 'M' };
294 m_shortMonthFormat = getFormatForSkeleton(m_locale.data(), skeleton, WTF_ARRAY_LENGTH(skeleton));
295 return m_shortMonthFormat;
296}
297
298String LocaleICU::timeFormat()
299{
300 initializeDateTimeFormat();
301 return m_timeFormatWithSeconds;
302}
303
304String LocaleICU::shortTimeFormat()
305{
306 initializeDateTimeFormat();
307 return m_timeFormatWithoutSeconds;
308}
309
310String LocaleICU::dateTimeFormatWithSeconds()
311{
312 initializeDateTimeFormat();
313 return m_dateTimeFormatWithSeconds;
314}
315
316String LocaleICU::dateTimeFormatWithoutSeconds()
317{
318 initializeDateTimeFormat();
319 return m_dateTimeFormatWithoutSeconds;
320}
321
322const Vector<String>& LocaleICU::shortMonthLabels()
323{
324 if (!m_shortMonthLabels.isEmpty())
325 return m_shortMonthLabels;
326 if (initializeShortDateFormat()) {
327 if (auto labels = createLabelVector(m_shortDateFormat, UDAT_SHORT_MONTHS, UCAL_JANUARY, 12)) {
328 m_shortMonthLabels = *labels;
329 return m_shortMonthLabels;
330 }
331 }
332 m_shortMonthLabels.reserveCapacity(WTF_ARRAY_LENGTH(WTF::monthName));
333 for (unsigned i = 0; i < WTF_ARRAY_LENGTH(WTF::monthName); ++i)
334 m_shortMonthLabels.append(WTF::monthName[i]);
335 return m_shortMonthLabels;
336}
337
338const Vector<String>& LocaleICU::standAloneMonthLabels()
339{
340 if (!m_standAloneMonthLabels.isEmpty())
341 return m_standAloneMonthLabels;
342 if (initializeShortDateFormat()) {
343 if (auto labels = createLabelVector(m_shortDateFormat, UDAT_STANDALONE_MONTHS, UCAL_JANUARY, 12)) {
344 m_standAloneMonthLabels = *labels;
345 return m_standAloneMonthLabels;
346 }
347 }
348 m_standAloneMonthLabels = monthLabels();
349 return m_standAloneMonthLabels;
350}
351
352const Vector<String>& LocaleICU::shortStandAloneMonthLabels()
353{
354 if (!m_shortStandAloneMonthLabels.isEmpty())
355 return m_shortStandAloneMonthLabels;
356 if (initializeShortDateFormat()) {
357 if (auto labels = createLabelVector(m_shortDateFormat, UDAT_STANDALONE_SHORT_MONTHS, UCAL_JANUARY, 12)) {
358 m_shortStandAloneMonthLabels = *labels;
359 return m_shortStandAloneMonthLabels;
360 }
361 }
362 m_shortStandAloneMonthLabels = shortMonthLabels();
363 return m_shortStandAloneMonthLabels;
364}
365
366const Vector<String>& LocaleICU::timeAMPMLabels()
367{
368 initializeDateTimeFormat();
369 return m_timeAMPMLabels;
370}
371
372#endif
373
374} // namespace WebCore
375
376