Move base to DEPS

base/i18n/time_formatting.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/i18n/time_formatting.h"
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
-#include "third_party/icu/source/i18n/unicode/datefmt.h"
-#include "third_party/icu/source/i18n/unicode/dtptngen.h"
-#include "third_party/icu/source/i18n/unicode/smpdtfmt.h"
-
-namespace base {
-namespace {
-
-string16 TimeFormat(const icu::DateFormat* formatter,
-                    const Time& time) {
-  DCHECK(formatter);
-  icu::UnicodeString date_string;
-
-  formatter->format(static_cast<UDate>(time.ToDoubleT() * 1000), date_string);
-  return string16(date_string.getBuffer(),
-                  static_cast<size_t>(date_string.length()));
-}
-
-string16 TimeFormatWithoutAmPm(const icu::DateFormat* formatter,
-                               const Time& time) {
-  DCHECK(formatter);
-  icu::UnicodeString time_string;
-
-  icu::FieldPosition ampm_field(icu::DateFormat::kAmPmField);
-  formatter->format(
-      static_cast<UDate>(time.ToDoubleT() * 1000), time_string, ampm_field);
-  int ampm_length = ampm_field.getEndIndex() - ampm_field.getBeginIndex();
-  if (ampm_length) {
-    int begin = ampm_field.getBeginIndex();
-    // Doesn't include any spacing before the field.
-    if (begin)
-      begin--;
-    time_string.removeBetween(begin, ampm_field.getEndIndex());
-  }
-  return string16(time_string.getBuffer(),
-                  static_cast<size_t>(time_string.length()));
-}
-
-icu::SimpleDateFormat CreateSimpleDateFormatter(const char* pattern) {
-  // Generate a locale-dependent format pattern. The generator will take
-  // care of locale-dependent formatting issues like which separator to
-  // use (some locales use '.' instead of ':'), and where to put the am/pm
-  // marker.
-  UErrorCode status = U_ZERO_ERROR;
-  scoped_ptr<icu::DateTimePatternGenerator> generator(
-      icu::DateTimePatternGenerator::createInstance(status));
-  DCHECK(U_SUCCESS(status));
-  icu::UnicodeString generated_pattern =
-      generator->getBestPattern(icu::UnicodeString(pattern), status);
-  DCHECK(U_SUCCESS(status));
-
-  // Then, format the time using the generated pattern.
-  icu::SimpleDateFormat formatter(generated_pattern, status);
-  DCHECK(U_SUCCESS(status));
-
-  return formatter;
-}
-
-}  // namespace
-
-string16 TimeFormatTimeOfDay(const Time& time) {
-  // We can omit the locale parameter because the default should match
-  // Chrome's application locale.
-  scoped_ptr<icu::DateFormat> formatter(
-      icu::DateFormat::createTimeInstance(icu::DateFormat::kShort));
-  return TimeFormat(formatter.get(), time);
-}
-
-string16 TimeFormatTimeOfDayWithMilliseconds(const Time& time) {
-  icu::SimpleDateFormat formatter = CreateSimpleDateFormatter("HmsSSS");
-  return TimeFormatWithoutAmPm(&formatter, time);
-}
-
-string16 TimeFormatTimeOfDayWithHourClockType(const Time& time,
-                                              HourClockType type,
-                                              AmPmClockType ampm) {
-  // Just redirect to the normal function if the default type matches the
-  // given type.
-  HourClockType default_type = GetHourClockType();
-  if (default_type == type && (type == k24HourClock || ampm == kKeepAmPm)) {
-    return TimeFormatTimeOfDay(time);
-  }
-
-  const char* base_pattern = (type == k12HourClock ? "ahm" : "Hm");
-  icu::SimpleDateFormat formatter = CreateSimpleDateFormatter(base_pattern);
-
-  if (ampm == kKeepAmPm) {
-    return TimeFormat(&formatter, time);
-  } else {
-    return TimeFormatWithoutAmPm(&formatter, time);
-  }
-}
-
-string16 TimeFormatShortDate(const Time& time) {
-  scoped_ptr<icu::DateFormat> formatter(
-      icu::DateFormat::createDateInstance(icu::DateFormat::kMedium));
-  return TimeFormat(formatter.get(), time);
-}
-
-string16 TimeFormatShortDateNumeric(const Time& time) {
-  scoped_ptr<icu::DateFormat> formatter(
-      icu::DateFormat::createDateInstance(icu::DateFormat::kShort));
-  return TimeFormat(formatter.get(), time);
-}
-
-string16 TimeFormatShortDateAndTime(const Time& time) {
-  scoped_ptr<icu::DateFormat> formatter(
-      icu::DateFormat::createDateTimeInstance(icu::DateFormat::kShort));
-  return TimeFormat(formatter.get(), time);
-}
-
-string16 TimeFormatShortDateAndTimeWithTimeZone(const Time& time) {
-  scoped_ptr<icu::DateFormat> formatter(icu::DateFormat::createDateTimeInstance(
-      icu::DateFormat::kShort, icu::DateFormat::kLong));
-  return TimeFormat(formatter.get(), time);
-}
-
-string16 TimeFormatFriendlyDateAndTime(const Time& time) {
-  scoped_ptr<icu::DateFormat> formatter(
-      icu::DateFormat::createDateTimeInstance(icu::DateFormat::kFull));
-  return TimeFormat(formatter.get(), time);
-}
-
-string16 TimeFormatFriendlyDate(const Time& time) {
-  scoped_ptr<icu::DateFormat> formatter(icu::DateFormat::createDateInstance(
-      icu::DateFormat::kFull));
-  return TimeFormat(formatter.get(), time);
-}
-
-HourClockType GetHourClockType() {
-  // TODO(satorux,jshin): Rework this with ures_getByKeyWithFallback()
-  // once it becomes public. The short time format can be found at
-  // "calendar/gregorian/DateTimePatterns/3" in the resources.
-  scoped_ptr<icu::SimpleDateFormat> formatter(
-      static_cast<icu::SimpleDateFormat*>(
-          icu::DateFormat::createTimeInstance(icu::DateFormat::kShort)));
-  // Retrieve the short time format.
-  icu::UnicodeString pattern_unicode;
-  formatter->toPattern(pattern_unicode);
-
-  // Determine what hour clock type the current locale uses, by checking
-  // "a" (am/pm marker) in the short time format. This is reliable as "a"
-  // is used by all of 12-hour clock formats, but not any of 24-hour clock
-  // formats, as shown below.
-  //
-  // % grep -A4 DateTimePatterns third_party/icu/source/data/locales/*.txt |
-  //   grep -B1 -- -- |grep -v -- '--' |
-  //   perl -nle 'print $1 if /^\S+\s+"(.*)"/' |sort -u
-  //
-  // H.mm
-  // H:mm
-  // HH.mm
-  // HH:mm
-  // a h:mm
-  // ah:mm
-  // ahh:mm
-  // h-mm a
-  // h:mm a
-  // hh:mm a
-  //
-  // See http://userguide.icu-project.org/formatparse/datetime for details
-  // about the date/time format syntax.
-  if (pattern_unicode.indexOf('a') == -1) {
-    return k24HourClock;
-  } else {
-    return k12HourClock;
-  }
-}
-
-}  // namespace base