mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 00:06:09 +03:00
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
// Copyright 2015 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.
|
|
|
|
#ifndef BASE_I18N_MESSAGE_FORMATTER_H_
|
|
#define BASE_I18N_MESSAGE_FORMATTER_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
|
|
#include "base/i18n/base_i18n_export.h"
|
|
#include "base/macros.h"
|
|
#include "base/strings/string16.h"
|
|
#include "base/strings/string_piece.h"
|
|
#include "third_party/icu/source/common/unicode/uversion.h"
|
|
|
|
U_NAMESPACE_BEGIN
|
|
class Formattable;
|
|
U_NAMESPACE_END
|
|
|
|
namespace base {
|
|
|
|
class Time;
|
|
|
|
namespace i18n {
|
|
|
|
class MessageFormatter;
|
|
|
|
namespace internal {
|
|
|
|
class BASE_I18N_EXPORT MessageArg {
|
|
public:
|
|
MessageArg(const char* s);
|
|
MessageArg(StringPiece s);
|
|
MessageArg(const std::string& s);
|
|
MessageArg(const string16& s);
|
|
MessageArg(int i);
|
|
MessageArg(int64_t i);
|
|
MessageArg(double d);
|
|
MessageArg(const Time& t);
|
|
~MessageArg();
|
|
|
|
private:
|
|
friend class base::i18n::MessageFormatter;
|
|
MessageArg();
|
|
// Tests if this argument has a value, and if so increments *count.
|
|
bool has_value(int* count) const;
|
|
std::unique_ptr<icu::Formattable> formattable;
|
|
DISALLOW_COPY_AND_ASSIGN(MessageArg);
|
|
};
|
|
|
|
} // namespace internal
|
|
|
|
// Message Formatter with the ICU message format syntax support.
|
|
// It can format strings (UTF-8 and UTF-16), numbers and base::Time with
|
|
// plural, gender and other 'selectors' support. This is handy if you
|
|
// have multiple parameters of differnt types and some of them require
|
|
// plural or gender/selector support.
|
|
//
|
|
// To use this API for locale-sensitive formatting, retrieve a 'message
|
|
// template' in the ICU message format from a message bundle (e.g. with
|
|
// l10n_util::GetStringUTF16()) and pass it to FormatWith{Named,Numbered}Args.
|
|
//
|
|
// MessageFormat specs:
|
|
// http://icu-project.org/apiref/icu4j/com/ibm/icu/text/MessageFormat.html
|
|
// http://icu-project.org/apiref/icu4c/classicu_1_1DecimalFormat.html#details
|
|
// Examples:
|
|
// http://userguide.icu-project.org/formatparse/messages
|
|
// message_formatter_unittest.cc
|
|
// go/plurals inside Google.
|
|
// TODO(jshin): Document this API in md format docs.
|
|
// Caveat:
|
|
// When plural/select/gender is used along with other format specifiers such
|
|
// as date or number, plural/select/gender should be at the top level. It's
|
|
// not an ICU restriction but a constraint imposed by Google's translation
|
|
// infrastructure. Message A does not work. It must be revised to Message B.
|
|
//
|
|
// A.
|
|
// Rated <ph name="RATING">{0, number,0.0}<ex>3.2</ex></ph>
|
|
// by {1, plural, =1{a user} other{# users}}
|
|
//
|
|
// B.
|
|
// {1, plural,
|
|
// =1{Rated <ph name="RATING">{0, number,0.0}<ex>3.2</ex></ph>
|
|
// by a user.}
|
|
// other{Rated <ph name="RATING">{0, number,0.0}<ex>3.2</ex></ph>
|
|
// by # users.}}
|
|
|
|
class BASE_I18N_EXPORT MessageFormatter {
|
|
public:
|
|
static string16 FormatWithNamedArgs(
|
|
StringPiece16 msg,
|
|
StringPiece name0 = StringPiece(),
|
|
const internal::MessageArg& arg0 = internal::MessageArg(),
|
|
StringPiece name1 = StringPiece(),
|
|
const internal::MessageArg& arg1 = internal::MessageArg(),
|
|
StringPiece name2 = StringPiece(),
|
|
const internal::MessageArg& arg2 = internal::MessageArg(),
|
|
StringPiece name3 = StringPiece(),
|
|
const internal::MessageArg& arg3 = internal::MessageArg(),
|
|
StringPiece name4 = StringPiece(),
|
|
const internal::MessageArg& arg4 = internal::MessageArg(),
|
|
StringPiece name5 = StringPiece(),
|
|
const internal::MessageArg& arg5 = internal::MessageArg(),
|
|
StringPiece name6 = StringPiece(),
|
|
const internal::MessageArg& arg6 = internal::MessageArg());
|
|
|
|
static string16 FormatWithNumberedArgs(
|
|
StringPiece16 msg,
|
|
const internal::MessageArg& arg0 = internal::MessageArg(),
|
|
const internal::MessageArg& arg1 = internal::MessageArg(),
|
|
const internal::MessageArg& arg2 = internal::MessageArg(),
|
|
const internal::MessageArg& arg3 = internal::MessageArg(),
|
|
const internal::MessageArg& arg4 = internal::MessageArg(),
|
|
const internal::MessageArg& arg5 = internal::MessageArg(),
|
|
const internal::MessageArg& arg6 = internal::MessageArg());
|
|
|
|
private:
|
|
MessageFormatter() = delete;
|
|
DISALLOW_COPY_AND_ASSIGN(MessageFormatter);
|
|
};
|
|
|
|
} // namespace i18n
|
|
} // namespace base
|
|
|
|
#endif // BASE_I18N_MESSAGE_FORMATTER_H_
|