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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef intl_components_NumberFormatterSkeleton_h_
#define intl_components_NumberFormatterSkeleton_h_
#include <string_view>
#include "mozilla/intl/NumberFormat.h"
#include "mozilla/intl/NumberRangeFormat.h"
#include "mozilla/Vector.h"
#include "unicode/unumberformatter.h"
#include "unicode/utypes.h"
struct UNumberRangeFormatter;
namespace mozilla::intl {
/**
* Class to create a number formatter skeleton.
*
* The skeleton syntax is documented at:
* https://github.com/unicode-org/icu/blob/master/docs/userguide/format_parse/numbers/skeletons.md
*/
class MOZ_STACK_CLASS NumberFormatterSkeleton final {
public:
explicit NumberFormatterSkeleton(const NumberFormatOptions& options);
/**
* Return a new UNumberFormatter based on this skeleton.
*/
UNumberFormatter* toFormatter(std::string_view locale);
/**
* Return a new UNumberRangeFormatter based on this skeleton.
*/
UNumberRangeFormatter* toRangeFormatter(
std::string_view locale, NumberRangeFormatOptions::RangeCollapse collapse,
NumberRangeFormatOptions::RangeIdentityFallback identity);
private:
static constexpr size_t DefaultVectorSize = 128;
mozilla::Vector<char16_t, DefaultVectorSize> mVector;
bool mValidSkeleton = false;
[[nodiscard]] bool append(char16_t c) { return mVector.append(c); }
[[nodiscard]] bool appendN(char16_t c, size_t times) {
return mVector.appendN(c, times);
}
template <size_t N>
[[nodiscard]] bool append(const char16_t (&chars)[N]) {
static_assert(N > 0,
"should only be used with string literals or properly "
"null-terminated arrays");
MOZ_ASSERT(chars[N - 1] == '\0',
"should only be used with string literals or properly "
"null-terminated arrays");
// Without trailing \0.
return mVector.append(chars, N - 1);
}
template <size_t N>
[[nodiscard]] bool appendToken(const char16_t (&token)[N]) {
return append(token) && append(' ');
}
[[nodiscard]] bool append(const char* chars, size_t length) {
return mVector.append(chars, length);
}
[[nodiscard]] bool currency(std::string_view currency);
[[nodiscard]] bool currencyDisplay(
NumberFormatOptions::CurrencyDisplay display);
[[nodiscard]] bool unit(std::string_view unit);
[[nodiscard]] bool unitDisplay(NumberFormatOptions::UnitDisplay display);
[[nodiscard]] bool percent();
[[nodiscard]] bool fractionDigits(uint32_t min, uint32_t max,
bool stripTrailingZero);
[[nodiscard]] bool fractionWithSignificantDigits(uint32_t mnfd, uint32_t mxfd,
uint32_t mnsd, uint32_t mxsd,
bool relaxed,
bool stripTrailingZero);
[[nodiscard]] bool minIntegerDigits(uint32_t min);
[[nodiscard]] bool significantDigits(uint32_t min, uint32_t max,
bool stripTrailingZero);
[[nodiscard]] bool grouping(NumberFormatOptions::Grouping grouping);
[[nodiscard]] bool notation(NumberFormatOptions::Notation style);
[[nodiscard]] bool signDisplay(NumberFormatOptions::SignDisplay display);
[[nodiscard]] bool roundingIncrement(uint32_t increment, uint32_t mnfd,
uint32_t mxfd, bool stripTrailingZero);
[[nodiscard]] bool roundingMode(NumberFormatOptions::RoundingMode rounding);
};
} // namespace mozilla::intl
#endif
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