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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_FORMATTING
#if !UCONFIG_NO_MF2
#include "unicode/datefmt.h"
#include "unicode/messageformat2_function_registry.h"
U_NAMESPACE_BEGIN
namespace message2 {
// 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;
static UnicodeString getStringOption(const FunctionOptions& opts,
const UnicodeString& 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;
/*
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,
const UnicodeString& 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,
const UnicodeString& 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) {}
};
};
extern void formatDateWithDefaults(const Locale& locale, UDate 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 /* U_SHOW_CPLUSPLUS_API */
#endif // MESSAGEFORMAT2_FUNCTION_REGISTRY_INTERNAL_H
#endif // U_HIDE_DEPRECATED_API
// eof
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