Quelle number_decimfmtprops.h
Sprache: C
// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#ifndef __NUMBER_DECIMFMTPROPS_H__
#define __NUMBER_DECIMFMTPROPS_H__
#include "unicode/unistr.h"
#include <cstdint>
#include "unicode/plurrule.h"
#include "unicode/currpinf.h"
#include "unicode/unum.h"
#include "unicode/localpointer.h"
#include "number_types.h"
U_NAMESPACE_BEGIN
// Export an explicit template instantiation of the LocalPointer that is used as a
// data member of CurrencyPluralInfoWrapper.
// (When building DLLs for Windows this is required.)
#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
template class U_I18N_API LocalPointerBase<CurrencyPluralInfo>;
template class U_I18N_API LocalPointer<CurrencyPluralInfo>;
#endif
namespace number::impl {
// Exported as U_I18N_API because it is a public member field of exported DecimalFormatProperties
// Using this wrapper is rather unfortunate, but is needed on Windows platforms in order to allow
// for DLL-exporting a fully specified template instantiation.
class U_I18N_API CurrencyPluralInfoWrapper {
public:
LocalPointer<CurrencyPluralInfo> fPtr;
CurrencyPluralInfoWrapper() =
default ;
CurrencyPluralInfoWrapper(
const CurrencyPluralInfoWrapper& other) {
if (!other.fPtr.isNull()) {
fPtr.adoptInstead(
new CurrencyPluralInfo(*other.fPtr));
}
}
CurrencyPluralInfoWrapper&
operator =(
const CurrencyPluralInfoWrapper& other
) {
if (this != &other && // self-assignment: no-op
!other.fPtr.isNull()) {
fPtr.adoptInstead(new CurrencyPluralInfo(*other.fPtr));
}
return *this;
}
};
/** Controls the set of rules for parsing a string from the old DecimalFormat API. */
enum ParseMode {
/**
* Lenient mode should be used if you want to accept malformed user input . It will use heuristics
* to attempt to parse through typographical errors in the string .
*/
PARSE_MODE_LENIENT,
/**
* Strict mode should be used if you want to require that the input is well - formed . More
* specifically , it differs from lenient mode in the following ways :
*
* < ul >
* < li > Grouping widths must match the grouping settings . For example , " 12 , 3 , 45 " will fail if the
* grouping width is 3 , as in the pattern " # , # # 0 " .
* < li > The string must contain a complete prefix and suffix . For example , if the pattern is
* " { # } ; ( # ) " , then " { 123 } " or " ( 123 ) " would match , but " { 123 " , " 123 } " , and " 123 " would all fail .
* ( The latter strings would be accepted in lenient mode . )
* < li > Whitespace may not appear at arbitrary places in the string . In lenient mode , whitespace
* is allowed to occur arbitrarily before and after prefixes and exponent separators .
* < li > Leading grouping separators are not allowed , as in " , 123 " .
* < li > Minus and plus signs can only appear if specified in the pattern . In lenient mode , a plus
* or minus sign can always precede a number .
* < li > The set of characters that can be interpreted as a decimal or grouping separator is
* smaller .
* < li > < strong > If currency parsing is enabled , < / strong > currencies must only appear where
* specified in either the current pattern string or in a valid pattern string for the current
* locale . For example , if the pattern is " ¤ 0 . 00 " , then " $ 1 . 23 " would match , but " 1 . 23 $ " would
* fail to match .
* < / ul >
*/
PARSE_MODE_STRICT,
};
// Exported as U_I18N_API because it is needed for the unit test PatternStringTest
struct U_I18N_API DecimalFormatProperties : public UMemory {
public:
NullableValue<UNumberCompactStyle> compactStyle;
NullableValue<CurrencyUnit> currency;
CurrencyPluralInfoWrapper currencyPluralInfo;
NullableValue<UCurrencyUsage> currencyUsage;
bool decimalPatternMatchRequired;
bool decimalSeparatorAlwaysShown;
bool exponentSignAlwaysShown;
bool currencyAsDecimal;
bool formatFailIfMoreThanMaxDigits; // ICU4C-only
int32_t formatWidth;
int32_t groupingSize;
bool groupingUsed;
int32_t magnitudeMultiplier; // internal field like multiplierScale but separate to avoid conflict
int32_t maximumFractionDigits;
int32_t maximumIntegerDigits;
int32_t maximumSignificantDigits;
int32_t minimumExponentDigits;
int32_t minimumFractionDigits;
int32_t minimumGroupingDigits;
int32_t minimumIntegerDigits;
int32_t minimumSignificantDigits;
int32_t multiplier;
int32_t multiplierScale; // ICU4C-only
UnicodeString negativePrefix;
UnicodeString negativePrefixPattern;
UnicodeString negativeSuffix;
UnicodeString negativeSuffixPattern;
NullableValue<PadPosition> padPosition;
UnicodeString padString;
bool parseCaseSensitive;
bool parseIntegerOnly;
NullableValue<ParseMode> parseMode;
bool parseNoExponent;
bool parseToBigDecimal; // TODO: Not needed in ICU4C?
UNumberFormatAttributeValue parseAllInput; // ICU4C-only
//PluralRules pluralRules;
UnicodeString positivePrefix;
UnicodeString positivePrefixPattern;
UnicodeString positiveSuffix;
UnicodeString positiveSuffixPattern;
double roundingIncrement;
NullableValue<RoundingMode> roundingMode;
int32_t secondaryGroupingSize;
bool signAlwaysShown;
DecimalFormatProperties();
inline bool operator ==(const DecimalFormatProperties& other) const {
return _equals(other, false );
}
void clear();
/**
* Checks for equality to the default DecimalFormatProperties , but ignores the prescribed set of
* options for fast - path formatting .
*/
bool equalsDefaultExceptFastFormat() const ;
/**
* Returns the default DecimalFormatProperties instance .
*/
static const DecimalFormatProperties& getDefault();
private :
bool _equals(const DecimalFormatProperties& other, bool ignoreForFastFormat) const ;
};
} // namespace number::impl
U_NAMESPACE_END
#endif //__NUMBER_DECIMFMTPROPS_H__
#endif /* #if !UCONFIG_NO_FORMATTING */
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*© Formatika GbR, Deutschland
2026-08-25
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