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node/deps/icu-small/source/i18n/messageformat2_function_registry_internal.h
Node.js GitHub Bot 1bd7f62d13
 deps: update icu to 78.2 
PR-URL: https://github.com/nodejs/node/pull/60523
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Steven R Loomis <srl295@gmail.com>
2026-01-11 18:05:01 +00:00

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// © 2024 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#ifndef U_HIDE_DEPRECATED_API
#ifndef MESSAGEFORMAT2_FUNCTION_REGISTRY_INTERNAL_H
#define MESSAGEFORMAT2_FUNCTION_REGISTRY_INTERNAL_H
#if U_SHOW_CPLUSPLUS_API
#if !UCONFIG_NO_NORMALIZATION
#if !UCONFIG_NO_FORMATTING
#if !UCONFIG_NO_MF2
#include "unicode/datefmt.h"
#include "unicode/messageformat2_function_registry.h"
U_NAMESPACE_BEGIN
namespace message2 {
// Constants for option names
namespace options {
static constexpr std::u16string_view ALWAYS = u"always";
static constexpr std::u16string_view COMPACT = u"compact";
static constexpr std::u16string_view COMPACT_DISPLAY = u"compactDisplay";
static constexpr std::u16string_view DATE_STYLE = u"dateStyle";
static constexpr std::u16string_view DAY = u"day";
static constexpr std::u16string_view DECIMAL_PLACES = u"decimalPlaces";
static constexpr std::u16string_view DEFAULT_UPPER = u"DEFAULT";
static constexpr std::u16string_view ENGINEERING = u"engineering";
static constexpr std::u16string_view EXACT = u"exact";
static constexpr std::u16string_view EXCEPT_ZERO = u"exceptZero";
static constexpr std::u16string_view FAILS = u"fails";
static constexpr std::u16string_view FULL_UPPER = u"FULL";
static constexpr std::u16string_view HOUR = u"hour";
static constexpr std::u16string_view LONG = u"long";
static constexpr std::u16string_view LONG_UPPER = u"LONG";
static constexpr std::u16string_view MAXIMUM_FRACTION_DIGITS = u"maximumFractionDigits";
static constexpr std::u16string_view MAXIMUM_SIGNIFICANT_DIGITS = u"maximumSignificantDigits";
static constexpr std::u16string_view MEDIUM_UPPER = u"MEDIUM";
static constexpr std::u16string_view MIN2 = u"min2";
static constexpr std::u16string_view MINIMUM_FRACTION_DIGITS = u"minimumFractionDigits";
static constexpr std::u16string_view MINIMUM_INTEGER_DIGITS = u"minimumIntegerDigits";
static constexpr std::u16string_view MINIMUM_SIGNIFICANT_DIGITS = u"minimumSignificantDigits";
static constexpr std::u16string_view MINUTE = u"minute";
static constexpr std::u16string_view MONTH = u"month";
static constexpr std::u16string_view NARROW = u"narrow";
static constexpr std::u16string_view NEGATIVE = u"negative";
static constexpr std::u16string_view NEVER = u"never";
static constexpr std::u16string_view NOTATION = u"notation";
static constexpr std::u16string_view NUMBERING_SYSTEM = u"numberingSystem";
static constexpr std::u16string_view NUMERIC = u"numeric";
static constexpr std::u16string_view ORDINAL = u"ordinal";
static constexpr std::u16string_view PERCENT_STRING = u"percent";
static constexpr std::u16string_view SCIENTIFIC = u"scientific";
static constexpr std::u16string_view SECOND = u"second";
static constexpr std::u16string_view SELECT = u"select";
static constexpr std::u16string_view SHORT = u"short";
static constexpr std::u16string_view SHORT_UPPER = u"SHORT";
static constexpr std::u16string_view SIGN_DISPLAY = u"signDisplay";
static constexpr std::u16string_view STYLE = u"style";
static constexpr std::u16string_view TIME_STYLE = u"timeStyle";
static constexpr std::u16string_view TWO_DIGIT = u"2-digit";
static constexpr std::u16string_view USE_GROUPING = u"useGrouping";
static constexpr std::u16string_view WEEKDAY = u"weekday";
static constexpr std::u16string_view YEAR = u"year";
} // namespace options
// Built-in functions
/*
The standard functions are :datetime, :date, :time,
:number, :integer, and :string,
per https://github.com/unicode-org/message-format-wg/blob/main/spec/registry.md
as of https://github.com/unicode-org/message-format-wg/releases/tag/LDML45-alpha
*/
class StandardFunctions {
friend class MessageFormatter;
public:
// Used for normalizing variable names and keys for comparison
static UnicodeString normalizeNFC(const UnicodeString&);
private:
static void validateDigitSizeOptions(const FunctionOptions&, UErrorCode&);
static void checkSelectOption(const FunctionOptions&, UErrorCode&);
static UnicodeString getStringOption(const FunctionOptions& opts,
std::u16string_view optionName,
UErrorCode& errorCode);
class DateTime;
class DateTimeFactory : public FormatterFactory {
public:
Formatter* createFormatter(const Locale& locale, UErrorCode& status) override;
static DateTimeFactory* date(UErrorCode&);
static DateTimeFactory* time(UErrorCode&);
static DateTimeFactory* dateTime(UErrorCode&);
DateTimeFactory() = delete;
virtual ~DateTimeFactory();
private:
friend class DateTime;
typedef enum DateTimeType {
Date,
Time,
DateTime
} DateTimeType;
DateTimeType type;
DateTimeFactory(DateTimeType t) : type(t) {}
};
class DateTime : public Formatter {
public:
FormattedPlaceholder format(FormattedPlaceholder&& toFormat, FunctionOptions&& options, UErrorCode& status) const override;
virtual ~DateTime();
private:
const Locale& locale;
const DateTimeFactory::DateTimeType type;
friend class DateTimeFactory;
DateTime(const Locale& l, DateTimeFactory::DateTimeType t)
: locale(l), type(t) {}
const LocalPointer<icu::DateFormat> icuFormatter;
// Methods for parsing date literals
UDate tryPatterns(const UnicodeString&, UErrorCode&) const;
UDate tryTimeZonePatterns(const UnicodeString&, UErrorCode&) const;
DateInfo createDateInfoFromString(const UnicodeString&, UErrorCode&) const;
/*
Looks up an option by name, first checking `opts`, then the cached options
in `toFormat` if applicable, and finally using a default
Ignores any options with non-string values
*/
UnicodeString getFunctionOption(const FormattedPlaceholder& toFormat,
const FunctionOptions& opts,
std::u16string_view optionName) const;
// Version for options that don't have defaults; sets the error
// code instead of returning a default value
UnicodeString getFunctionOption(const FormattedPlaceholder& toFormat,
const FunctionOptions& opts,
std::u16string_view optionName,
UErrorCode& errorCode) const;
};
// Note: IntegerFactory doesn't implement SelectorFactory;
// instead, an instance of PluralFactory is registered to the integer
// selector
// TODO
class IntegerFactory : public FormatterFactory {
public:
Formatter* createFormatter(const Locale& locale, UErrorCode& status) override;
virtual ~IntegerFactory();
};
class NumberFactory : public FormatterFactory {
public:
Formatter* createFormatter(const Locale& locale, UErrorCode& status) override;
virtual ~NumberFactory();
private:
friend class IntegerFactory;
static NumberFactory integer(const Locale& locale, UErrorCode& status);
};
class Number : public Formatter {
public:
FormattedPlaceholder format(FormattedPlaceholder&& toFormat, FunctionOptions&& options, UErrorCode& status) const override;
virtual ~Number();
private:
friend class NumberFactory;
friend class StandardFunctions;
Number(const Locale& loc) : locale(loc), icuFormatter(number::NumberFormatter::withLocale(loc)) {}
Number(const Locale& loc, bool isInt) : locale(loc), isInteger(isInt), icuFormatter(number::NumberFormatter::withLocale(loc)) {}
static Number integer(const Locale& loc);
// These options have their own accessor methods, since they have different default values.
int32_t maximumFractionDigits(const FunctionOptions& options) const;
int32_t minimumFractionDigits(const FunctionOptions& options) const;
int32_t minimumSignificantDigits(const FunctionOptions& options) const;
int32_t maximumSignificantDigits(const FunctionOptions& options) const;
int32_t minimumIntegerDigits(const FunctionOptions& options) const;
bool usePercent(const FunctionOptions& options) const;
const Locale& locale;
const bool isInteger = false;
const number::LocalizedNumberFormatter icuFormatter;
};
static number::LocalizedNumberFormatter formatterForOptions(const Number& number,
const FunctionOptions& opts,
UErrorCode& status);
class PluralFactory : public SelectorFactory {
public:
Selector* createSelector(const Locale& locale, UErrorCode& status) const override;
virtual ~PluralFactory();
private:
friend class IntegerFactory;
friend class MessageFormatter;
PluralFactory() {}
PluralFactory(bool isInt) : isInteger(isInt) {}
static PluralFactory integer() { return PluralFactory(true);}
const bool isInteger = false;
};
class Plural : public Selector {
public:
void selectKey(FormattedPlaceholder&& val,
FunctionOptions&& options,
const UnicodeString* keys,
int32_t keysLen,
UnicodeString* prefs,
int32_t& prefsLen,
UErrorCode& status) const override;
virtual ~Plural();
private:
friend class IntegerFactory;
friend class PluralFactory;
// Can't use UPluralType for this since we want to include
// exact matching as an option
typedef enum PluralType {
PLURAL_ORDINAL,
PLURAL_CARDINAL,
PLURAL_EXACT
} PluralType;
Plural(const Locale& loc, UErrorCode& errorCode);
Plural(const Locale& loc, bool isInt, UErrorCode& errorCode);
static Plural integer(const Locale& loc, UErrorCode& errorCode) { return Plural(loc, true, errorCode); }
PluralType pluralType(const FunctionOptions& opts) const;
const Locale& locale;
const bool isInteger = false;
LocalPointer<StandardFunctions::Number> numberFormatter;
};
class TextFactory : public SelectorFactory {
public:
Selector* createSelector(const Locale& locale, UErrorCode& status) const override;
virtual ~TextFactory();
};
class TextSelector : public Selector {
public:
void selectKey(FormattedPlaceholder&& val,
FunctionOptions&& options,
const UnicodeString* keys,
int32_t keysLen,
UnicodeString* prefs,
int32_t& prefsLen,
UErrorCode& status) const override;
virtual ~TextSelector();
private:
friend class TextFactory;
// Formatting `value` to a string might require the locale
const Locale& locale;
TextSelector(const Locale& l) : locale(l) {}
};
// See https://github.com/unicode-org/message-format-wg/blob/main/test/README.md
class TestFormatFactory : public FormatterFactory {
public:
Formatter* createFormatter(const Locale& locale, UErrorCode& status) override;
TestFormatFactory() {}
virtual ~TestFormatFactory();
};
class TestSelect;
class TestFormat : public Formatter {
public:
FormattedPlaceholder format(FormattedPlaceholder&& toFormat, FunctionOptions&& options, UErrorCode& status) const override;
virtual ~TestFormat();
private:
friend class TestFormatFactory;
friend class TestSelect;
TestFormat() {}
static void testFunctionParameters(const FormattedPlaceholder& arg,
const FunctionOptions& options,
int32_t& decimalPlaces,
bool& failsFormat,
bool& failsSelect,
double& input,
UErrorCode& status);
};
// See https://github.com/unicode-org/message-format-wg/blob/main/test/README.md
class TestSelectFactory : public SelectorFactory {
public:
Selector* createSelector(const Locale& locale, UErrorCode& status) const override;
TestSelectFactory() {}
virtual ~TestSelectFactory();
};
class TestSelect : public Selector {
public:
void selectKey(FormattedPlaceholder&& val,
FunctionOptions&& options,
const UnicodeString* keys,
int32_t keysLen,
UnicodeString* prefs,
int32_t& prefsLen,
UErrorCode& status) const override;
virtual ~TestSelect();
private:
friend class TestSelectFactory;
TestSelect() {}
};
};
extern void formatDateWithDefaults(const Locale& locale, const DateInfo& date, UnicodeString&, UErrorCode& errorCode);
extern number::FormattedNumber formatNumberWithDefaults(const Locale& locale, double toFormat, UErrorCode& errorCode);
extern number::FormattedNumber formatNumberWithDefaults(const Locale& locale, int32_t toFormat, UErrorCode& errorCode);
extern number::FormattedNumber formatNumberWithDefaults(const Locale& locale, int64_t toFormat, UErrorCode& errorCode);
extern number::FormattedNumber formatNumberWithDefaults(const Locale& locale, StringPiece toFormat, UErrorCode& errorCode);
extern DateFormat* defaultDateTimeInstance(const Locale&, UErrorCode&);
} // namespace message2
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_MF2 */
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif /* #if !UCONFIG_NO_NORMALIZATION */
#endif /* U_SHOW_CPLUSPLUS_API */
#endif // MESSAGEFORMAT2_FUNCTION_REGISTRY_INTERNAL_H
#endif // U_HIDE_DEPRECATED_API
// eof
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