third_party/WebKit/Source/platform/text/LocaleICU.h

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 */

#ifndef LocaleICU_h
#define LocaleICU_h

#include "platform/DateComponents.h"
#include "platform/text/PlatformLocale.h"
#include "wtf/Forward.h"
#include "wtf/text/CString.h"
#include "wtf/text/WTFString.h"
#include <memory>
#include <unicode/udat.h>
#include <unicode/unum.h>

namespace blink {

// We should use this class only for LocalizedNumberICU.cpp,
// LocalizedDateICU.cpp, and LocalizedNumberICUTest.cpp.
class PLATFORM_EXPORT LocaleICU : public Locale {
 public:
  static std::unique_ptr<LocaleICU> create(const char* localeString);
  ~LocaleICU() override;

  const Vector<String>& weekDayShortLabels() override;
  unsigned firstDayOfWeek() override;
  bool isRTL() override;
  String dateFormat() override;
  String monthFormat() override;
  String shortMonthFormat() override;
  String timeFormat() override;
  String shortTimeFormat() override;
  String dateTimeFormatWithSeconds() override;
  String dateTimeFormatWithoutSeconds() override;
  const Vector<String>& monthLabels() override;
  const Vector<String>& shortMonthLabels() override;
  const Vector<String>& standAloneMonthLabels() override;
  const Vector<String>& shortStandAloneMonthLabels() override;
  const Vector<String>& timeAMPMLabels() override;

 private:
  explicit LocaleICU(const char*);
  String decimalSymbol(UNumberFormatSymbol);
  String decimalTextAttribute(UNumberFormatTextAttribute);
  void initializeLocaleData() override;

  bool detectSignAndGetDigitRange(const String& input,
                                  bool& isNegative,
                                  unsigned& startIndex,
                                  unsigned& endIndex);
  unsigned matchedDecimalSymbolIndex(const String& input, unsigned& position);

  bool initializeShortDateFormat();
  UDateFormat* openDateFormat(UDateFormatStyle timeStyle,
                              UDateFormatStyle dateStyle) const;
  UDateFormat* openDateFormatForStandAloneMonthLabels(bool isShort) const;

  void initializeCalendar();

  std::unique_ptr<Vector<String>> createLabelVector(const UDateFormat*,
                                                    UDateFormatSymbolType,
                                                    int32_t startIndex,
                                                    int32_t size);
  void initializeDateTimeFormat();

  CString m_locale;
  UNumberFormat* m_numberFormat;
  UDateFormat* m_shortDateFormat;
  bool m_didCreateDecimalFormat;
  bool m_didCreateShortDateFormat;

  std::unique_ptr<Vector<String>> m_weekDayShortLabels;
  unsigned m_firstDayOfWeek;
  std::unique_ptr<Vector<String>> m_monthLabels;
  String m_dateFormat;
  String m_monthFormat;
  String m_shortMonthFormat;
  String m_timeFormatWithSeconds;
  String m_timeFormatWithoutSeconds;
  String m_dateTimeFormatWithSeconds;
  String m_dateTimeFormatWithoutSeconds;
  UDateFormat* m_mediumTimeFormat;
  UDateFormat* m_shortTimeFormat;
  Vector<String> m_shortMonthLabels;
  Vector<String> m_standAloneMonthLabels;
  Vector<String> m_shortStandAloneMonthLabels;
  Vector<String> m_timeAMPMLabels;
  bool m_didCreateTimeFormat;
};

}  // namespace blink
#endif