+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
********************************************************************************
-* Copyright (C) 1997-2010, International Business Machines
+* Copyright (C) 1997-2016, International Business Machines
* Corporation and others. All Rights Reserved.
********************************************************************************
*
* 07/10/97 helena Made ParsePosition a class and get rid of the function
* hiding problems.
* 09/09/97 aliu Ported over support for exponential formats.
-* 07/20/98 stephen Changed documentation
+* 07/20/98 stephen Changed documentation
+* 01/30/13 emmons Added Scaling methods
********************************************************************************
*/
#include "unicode/utypes.h"
/**
* \file
- * \brief C++ API: Formats decimal numbers.
+ * \brief C++ API: Compatibility APIs for decimal formatting.
*/
#if !UCONFIG_NO_FORMATTING
#include "unicode/locid.h"
#include "unicode/fpositer.h"
#include "unicode/stringpiece.h"
+#include "unicode/curramt.h"
+#include "unicode/enumset.h"
-union UHashTok;
-
+#if U_SHOW_CPLUSPLUS_API
U_NAMESPACE_BEGIN
-class DigitList;
-class ChoiceFormat;
class CurrencyPluralInfo;
-class Hashtable;
-class UnicodeSet;
-class FieldPositionHandler;
+class CompactDecimalFormat;
+
+namespace number {
+class LocalizedNumberFormatter;
+class FormattedNumber;
+namespace impl {
+class DecimalQuantity;
+struct DecimalFormatFields;
+}
+}
+
+namespace numparse {
+namespace impl {
+class NumberParserImpl;
+}
+}
/**
+ * **IMPORTANT:** New users are strongly encouraged to see if
+ * numberformatter.h fits their use case. Although not deprecated, this header
+ * is provided for backwards compatibility only.
+ *
* DecimalFormat is a concrete subclass of NumberFormat that formats decimal
* numbers. It has a variety of features designed to make it possible to parse
* and format numbers in any locale, including support for Western, Arabic, or
* ("1.23E4"), percentages ("12%"), and currency amounts ("$123", "USD123",
* "123 US dollars"). All of these flavors can be easily localized.
*
- * <p>To obtain a NumberFormat for a specific locale (including the default
+ * To obtain a NumberFormat for a specific locale (including the default
* locale) call one of NumberFormat's factory methods such as
* createInstance(). Do not call the DecimalFormat constructors directly, unless
* you know what you are doing, since the NumberFormat factory methods may
* return subclasses other than DecimalFormat.
*
- * <p><strong>Example Usage</strong>
+ * **Example Usage**
*
* \code
* // Normally we would have a GUI with a menu for this
* }
* }
* \endcode
- * <P>
- * Another example use createInstance(style)
- * <P>
- * <pre>
- * <strong>// Print out a number using the localized number, currency,
+ *
+ * **Another example use createInstance(style)**
+ *
+ * \code
+ * // Print out a number using the localized number, currency,
* // percent, scientific, integer, iso currency, and plural currency
* // format for each locale</strong>
* Locale* locale = new Locale("en", "US");
* for (int j=NumberFormat::kNumberStyle;
* j<=NumberFormat::kPluralCurrencyStyle;
* ++j) {
- * NumberFormat* format = NumberFormat::createInstance(locale, j, success);
+ * NumberFormat* form = NumberFormat::createInstance(locale, j, success);
* str.remove();
* cout << "format result " << form->format(myNumber, str) << endl;
* format->parse(form->format(myNumber, str), fmtable, success);
- * }</pre>
+ * delete form;
+ * }
+ * \endcode
*
*
* <p><strong>Patterns</strong>
* <td>Pad escape, precedes pad character
* </table>
*
- * <p>A DecimalFormat pattern contains a postive and negative
+ * <p>A DecimalFormat pattern contains a positive and negative
* subpattern, for example, "#,##0.00;(#,##0.00)". Each subpattern has a
* prefix, a numeric part, and a suffix. If there is no explicit negative
* subpattern, the negative subpattern is the localized minus sign prefixed to the
*
* <li>If the number of actual fraction digits is less than the
* <em>minimum fraction digits</em>, then trailing zeros are added.
- * For example, 0.125 is formatted as "0.1250" if the mimimum fraction
+ * For example, 0.125 is formatted as "0.1250" if the minimum fraction
* digits is set to 4.
*
* <li>Trailing fractional zeros are not displayed if they occur
* count of <code>getMaximumSignificantDigits() - 1</code>. For example, the
* pattern <code>"@@###E0"</code> is equivalent to <code>"0.0###E0"</code>.
*
- * <li>If signficant digits are in use, then the integer and fraction
+ * <li>If significant digits are in use, then the integer and fraction
* digit counts, as set via the API, are ignored. If significant
- * digits are not in use, then the signficant digit counts, as set via
+ * digits are not in use, then the significant digit counts, as set via
* the API, are ignored.
*
* </ul>
* including prefix and suffix, determines the format width. For example, in
* the pattern <code>"* #0 o''clock"</code>, the format width is 10.
*
- * <li>The width is counted in 16-bit code units (UChars).
+ * <li>The width is counted in 16-bit code units (char16_ts).
*
* <li>Some parameters which usually do not matter have meaning when padding is
* used, because the pattern width is significant with padding. In the pattern
* increment in the pattern itself. "#,#50" specifies a rounding increment of
* 50. "#,##0.05" specifies a rounding increment of 0.05.
*
- * <p>In the absense of an explicit rounding increment numbers are
+ * <p>In the absence of an explicit rounding increment numbers are
* rounded to their formatted width.
*
* <ul>
* subclasses, such code will not necessarily work and will not be
* guaranteed to work stably from release to release.
*/
-class U_I18N_API DecimalFormat: public NumberFormat {
-public:
- /**
- * Rounding mode.
- * @stable ICU 2.4
- */
- enum ERoundingMode {
- kRoundCeiling, /**< Round towards positive infinity */
- kRoundFloor, /**< Round towards negative infinity */
- kRoundDown, /**< Round towards zero */
- kRoundUp, /**< Round away from zero */
- kRoundHalfEven, /**< Round towards the nearest integer, or
- towards the nearest even integer if equidistant */
- kRoundHalfDown, /**< Round towards the nearest integer, or
- towards zero if equidistant */
- kRoundHalfUp /**< Round towards the nearest integer, or
- away from zero if equidistant */
- // We don't support ROUND_UNNECESSARY
- };
-
+class U_I18N_API DecimalFormat : public NumberFormat {
+ public:
/**
* Pad position.
* @stable ICU 2.4
*/
enum EPadPosition {
- kPadBeforePrefix,
- kPadAfterPrefix,
- kPadBeforeSuffix,
- kPadAfterSuffix
+ kPadBeforePrefix, kPadAfterPrefix, kPadBeforeSuffix, kPadAfterSuffix
};
/**
* on NumberFormat such as createInstance. These factories will
* return the most appropriate sub-class of NumberFormat for a given
* locale.
+ * <p>
+ * <strong>NOTE:</strong> New users are strongly encouraged to use
+ * #icu::number::NumberFormatter instead of DecimalFormat.
* @param status Output param set to success/failure code. If the
* pattern is invalid this will be set to a failure code.
* @stable ICU 2.0
* on NumberFormat such as createInstance. These factories will
* return the most appropriate sub-class of NumberFormat for a given
* locale.
+ * <p>
+ * <strong>NOTE:</strong> New users are strongly encouraged to use
+ * #icu::number::NumberFormatter instead of DecimalFormat.
* @param pattern A non-localized pattern string.
* @param status Output param set to success/failure code. If the
* pattern is invalid this will be set to a failure code.
* @stable ICU 2.0
*/
- DecimalFormat(const UnicodeString& pattern,
- UErrorCode& status);
+ DecimalFormat(const UnicodeString& pattern, UErrorCode& status);
/**
* Create a DecimalFormat from the given pattern and symbols.
* createInstance or createCurrencyInstance. If you need only minor adjustments
* to a standard format, you can modify the format returned by
* a NumberFormat factory method.
+ * <p>
+ * <strong>NOTE:</strong> New users are strongly encouraged to use
+ * #icu::number::NumberFormatter instead of DecimalFormat.
*
* @param pattern a non-localized pattern string
* @param symbolsToAdopt the set of symbols to be used. The caller should not
* pattern is invalid this will be set to a failure code.
* @stable ICU 2.0
*/
- DecimalFormat( const UnicodeString& pattern,
- DecimalFormatSymbols* symbolsToAdopt,
- UErrorCode& status);
+ DecimalFormat(const UnicodeString& pattern, DecimalFormatSymbols* symbolsToAdopt, UErrorCode& status);
+
+#ifndef U_HIDE_INTERNAL_API
/**
* This API is for ICU use only.
* @param pattern a non-localized pattern string
* @param symbolsToAdopt the set of symbols to be used. The caller should not
* delete this object after making this call.
- * @param style style of decimal format, kNumberStyle etc.
+ * @param style style of decimal format
* @param status Output param set to success/failure code. If the
* pattern is invalid this will be set to a failure code.
- * @internal ICU 4.2
+ * @internal
+ */
+ DecimalFormat(const UnicodeString& pattern, DecimalFormatSymbols* symbolsToAdopt,
+ UNumberFormatStyle style, UErrorCode& status);
+
+#if UCONFIG_HAVE_PARSEALLINPUT
+
+ /**
+ * @internal
+ */
+ void setParseAllInput(UNumberFormatAttributeValue value);
+
+#endif
+
+#endif /* U_HIDE_INTERNAL_API */
+
+ private:
+
+ /**
+ * Internal constructor for DecimalFormat; sets up internal fields. All public constructors should
+ * call this constructor.
+ */
+ DecimalFormat(const DecimalFormatSymbols* symbolsToAdopt, UErrorCode& status);
+
+ public:
+
+ /**
+ * Set an integer attribute on this DecimalFormat.
+ * May return U_UNSUPPORTED_ERROR if this instance does not support
+ * the specified attribute.
+ * @param attr the attribute to set
+ * @param newValue new value
+ * @param status the error type
+ * @return *this - for chaining (example: format.setAttribute(...).setAttribute(...) )
+ * @stable ICU 51
+ */
+ virtual DecimalFormat& setAttribute(UNumberFormatAttribute attr, int32_t newValue, UErrorCode& status);
+
+ /**
+ * Get an integer
+ * May return U_UNSUPPORTED_ERROR if this instance does not support
+ * the specified attribute.
+ * @param attr the attribute to set
+ * @param status the error type
+ * @return the attribute value. Undefined if there is an error.
+ * @stable ICU 51
*/
- DecimalFormat( const UnicodeString& pattern,
- DecimalFormatSymbols* symbolsToAdopt,
- NumberFormat::EStyles style,
- UErrorCode& status);
+ virtual int32_t getAttribute(UNumberFormatAttribute attr, UErrorCode& status) const;
+
+
+ /**
+ * Set whether or not grouping will be used in this format.
+ * @param newValue True, grouping will be used in this format.
+ * @see getGroupingUsed
+ * @stable ICU 53
+ */
+ void setGroupingUsed(UBool newValue) U_OVERRIDE;
+
+ /**
+ * Sets whether or not numbers should be parsed as integers only.
+ * @param value set True, this format will parse numbers as integers
+ * only.
+ * @see isParseIntegerOnly
+ * @stable ICU 53
+ */
+ void setParseIntegerOnly(UBool value) U_OVERRIDE;
+
+ /**
+ * Sets whether lenient parsing should be enabled (it is off by default).
+ *
+ * @param enable \c TRUE if lenient parsing should be used,
+ * \c FALSE otherwise.
+ * @stable ICU 4.8
+ */
+ void setLenient(UBool enable) U_OVERRIDE;
/**
* Create a DecimalFormat from the given pattern and symbols.
* createInstance or createCurrencyInstance. If you need only minor adjustments
* to a standard format, you can modify the format returned by
* a NumberFormat factory method.
+ * <p>
+ * <strong>NOTE:</strong> New users are strongly encouraged to use
+ * #icu::number::NumberFormatter instead of DecimalFormat.
*
* @param pattern a non-localized pattern string
* @param symbolsToAdopt the set of symbols to be used. The caller should not
* delete this object after making this call.
- * @param parseError Output param to receive errors occured during parsing
+ * @param parseError Output param to receive errors occurred during parsing
* @param status Output param set to success/failure code. If the
* pattern is invalid this will be set to a failure code.
* @stable ICU 2.0
*/
- DecimalFormat( const UnicodeString& pattern,
- DecimalFormatSymbols* symbolsToAdopt,
- UParseError& parseError,
- UErrorCode& status);
+ DecimalFormat(const UnicodeString& pattern, DecimalFormatSymbols* symbolsToAdopt,
+ UParseError& parseError, UErrorCode& status);
+
/**
* Create a DecimalFormat from the given pattern and symbols.
* Use this constructor when you need to completely customize the
* createInstance or createCurrencyInstance. If you need only minor adjustments
* to a standard format, you can modify the format returned by
* a NumberFormat factory method.
+ * <p>
+ * <strong>NOTE:</strong> New users are strongly encouraged to use
+ * #icu::number::NumberFormatter instead of DecimalFormat.
*
* @param pattern a non-localized pattern string
* @param symbols the set of symbols to be used
* pattern is invalid this will be set to a failure code.
* @stable ICU 2.0
*/
- DecimalFormat( const UnicodeString& pattern,
- const DecimalFormatSymbols& symbols,
- UErrorCode& status);
+ DecimalFormat(const UnicodeString& pattern, const DecimalFormatSymbols& symbols, UErrorCode& status);
/**
* Copy constructor.
* Destructor.
* @stable ICU 2.0
*/
- virtual ~DecimalFormat();
+ ~DecimalFormat() U_OVERRIDE;
/**
* Clone this Format object polymorphically. The caller owns the
* @return a polymorphic copy of this DecimalFormat.
* @stable ICU 2.0
*/
- virtual Format* clone(void) const;
+ Format* clone(void) const U_OVERRIDE;
/**
* Return true if the given Format objects are semantically equal.
* @return true if the given Format objects are semantically equal.
* @stable ICU 2.0
*/
- virtual UBool operator==(const Format& other) const;
+ UBool operator==(const Format& other) const U_OVERRIDE;
using NumberFormat::format;
* @return Reference to 'appendTo' parameter.
* @stable ICU 2.0
*/
- virtual UnicodeString& format(double number,
- UnicodeString& appendTo,
- FieldPosition& pos) const;
+ UnicodeString& format(double number, UnicodeString& appendTo, FieldPosition& pos) const U_OVERRIDE;
+
+#ifndef U_HIDE_INTERNAL_API
+ /**
+ * Format a double or long number using base-10 representation.
+ *
+ * @param number The value to be formatted.
+ * @param appendTo Output parameter to receive result.
+ * Result is appended to existing contents.
+ * @param pos On input: an alignment field, if desired.
+ * On output: the offsets of the alignment field.
+ * @param status
+ * @return Reference to 'appendTo' parameter.
+ * @internal
+ */
+ UnicodeString& format(double number, UnicodeString& appendTo, FieldPosition& pos,
+ UErrorCode& status) const U_OVERRIDE;
+#endif /* U_HIDE_INTERNAL_API */
/**
* Format a double or long number using base-10 representation.
* Can be NULL.
* @param status Output param filled with success/failure status.
* @return Reference to 'appendTo' parameter.
- * @stable 4.4
+ * @stable ICU 4.4
*/
- virtual UnicodeString& format(double number,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
+ UnicodeString& format(double number, UnicodeString& appendTo, FieldPositionIterator* posIter,
+ UErrorCode& status) const U_OVERRIDE;
/**
* Format a long number using base-10 representation.
* @return Reference to 'appendTo' parameter.
* @stable ICU 2.0
*/
- virtual UnicodeString& format(int32_t number,
- UnicodeString& appendTo,
- FieldPosition& pos) const;
+ UnicodeString& format(int32_t number, UnicodeString& appendTo, FieldPosition& pos) const U_OVERRIDE;
+
+#ifndef U_HIDE_INTERNAL_API
+ /**
+ * Format a long number using base-10 representation.
+ *
+ * @param number The value to be formatted.
+ * @param appendTo Output parameter to receive result.
+ * Result is appended to existing contents.
+ * @param pos On input: an alignment field, if desired.
+ * On output: the offsets of the alignment field.
+ * @param status Output param filled with success/failure status.
+ * @return Reference to 'appendTo' parameter.
+ * @internal
+ */
+ UnicodeString& format(int32_t number, UnicodeString& appendTo, FieldPosition& pos,
+ UErrorCode& status) const U_OVERRIDE;
+#endif /* U_HIDE_INTERNAL_API */
/**
* Format a long number using base-10 representation.
* Can be NULL.
* @param status Output param filled with success/failure status.
* @return Reference to 'appendTo' parameter.
- * @stable 4.4
+ * @stable ICU 4.4
*/
- virtual UnicodeString& format(int32_t number,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
+ UnicodeString& format(int32_t number, UnicodeString& appendTo, FieldPositionIterator* posIter,
+ UErrorCode& status) const U_OVERRIDE;
/**
* Format an int64 number using base-10 representation.
* @return Reference to 'appendTo' parameter.
* @stable ICU 2.8
*/
- virtual UnicodeString& format(int64_t number,
- UnicodeString& appendTo,
- FieldPosition& pos) const;
+ UnicodeString& format(int64_t number, UnicodeString& appendTo, FieldPosition& pos) const U_OVERRIDE;
+
+#ifndef U_HIDE_INTERNAL_API
+ /**
+ * Format an int64 number using base-10 representation.
+ *
+ * @param number The value to be formatted.
+ * @param appendTo Output parameter to receive result.
+ * Result is appended to existing contents.
+ * @param pos On input: an alignment field, if desired.
+ * On output: the offsets of the alignment field.
+ * @param status Output param filled with success/failure status.
+ * @return Reference to 'appendTo' parameter.
+ * @internal
+ */
+ UnicodeString& format(int64_t number, UnicodeString& appendTo, FieldPosition& pos,
+ UErrorCode& status) const U_OVERRIDE;
+#endif /* U_HIDE_INTERNAL_API */
/**
* Format an int64 number using base-10 representation.
* Can be NULL.
* @param status Output param filled with success/failure status.
* @return Reference to 'appendTo' parameter.
- * @stable 4.4
+ * @stable ICU 4.4
*/
- virtual UnicodeString& format(int64_t number,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
+ UnicodeString& format(int64_t number, UnicodeString& appendTo, FieldPositionIterator* posIter,
+ UErrorCode& status) const U_OVERRIDE;
/**
* Format a decimal number.
* Can be NULL.
* @param status Output param filled with success/failure status.
* @return Reference to 'appendTo' parameter.
- * @stable 4.4
+ * @stable ICU 4.4
*/
- virtual UnicodeString& format(const StringPiece &number,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
+ UnicodeString& format(StringPiece number, UnicodeString& appendTo, FieldPositionIterator* posIter,
+ UErrorCode& status) const U_OVERRIDE;
+#ifndef U_HIDE_INTERNAL_API
/**
- * Format a decimal number.
- * The number is a DigitList wrapper onto a floating point decimal number.
+ * Format a decimal number.
+ * The number is a DecimalQuantity wrapper onto a floating point decimal number.
* The default implementation in NumberFormat converts the decimal number
* to a double and formats that.
*
- * @param number The number, a DigitList format Decimal Floating Point.
+ * @param number The number, a DecimalQuantity format Decimal Floating Point.
* @param appendTo Output parameter to receive result.
* Result is appended to existing contents.
* @param posIter On return, can be used to iterate over positions
* @return Reference to 'appendTo' parameter.
* @internal
*/
- virtual UnicodeString& format(const DigitList &number,
- UnicodeString& appendTo,
- FieldPositionIterator* posIter,
- UErrorCode& status) const;
+ UnicodeString& format(const number::impl::DecimalQuantity& number, UnicodeString& appendTo,
+ FieldPositionIterator* posIter, UErrorCode& status) const U_OVERRIDE;
/**
- * Format a decimal number.
- * The number is a DigitList wrapper onto a floating point decimal number.
+ * Format a decimal number.
+ * The number is a DecimalQuantity wrapper onto a floating point decimal number.
* The default implementation in NumberFormat converts the decimal number
- * to a double and formats that.
+ * to a double and formats that.
*
- * @param number The number, a DigitList format Decimal Floating Point.
+ * @param number The number, a DecimalQuantity format Decimal Floating Point.
* @param appendTo Output parameter to receive result.
* Result is appended to existing contents.
* @param pos On input: an alignment field, if desired.
* @return Reference to 'appendTo' parameter.
* @internal
*/
- virtual UnicodeString& format(const DigitList &number,
- UnicodeString& appendTo,
- FieldPosition& pos,
- UErrorCode& status) const;
+ UnicodeString& format(const number::impl::DecimalQuantity& number, UnicodeString& appendTo,
+ FieldPosition& pos, UErrorCode& status) const U_OVERRIDE;
+#endif // U_HIDE_INTERNAL_API
- /**
- * Format a Formattable using base-10 representation.
- *
- * @param obj The value to be formatted.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param pos On input: an alignment field, if desired.
- * On output: the offsets of the alignment field.
- * @param status Error code indicating success or failure.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- virtual UnicodeString& format(const Formattable& obj,
- UnicodeString& appendTo,
- FieldPosition& pos,
- UErrorCode& status) const;
-
- /**
- * Redeclared NumberFormat method.
- * Formats an object to produce a string.
- *
- * @param obj The object to format.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param status Output parameter filled in with success or failure status.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- UnicodeString& format(const Formattable& obj,
- UnicodeString& appendTo,
- UErrorCode& status) const;
+ using NumberFormat::parse;
/**
- * Redeclared NumberFormat method.
- * Format a double number.
- *
- * @param number The value to be formatted.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- UnicodeString& format(double number,
- UnicodeString& appendTo) const;
-
- /**
- * Redeclared NumberFormat method.
- * Format a long number. These methods call the NumberFormat
- * pure virtual format() methods with the default FieldPosition.
- *
- * @param number The value to be formatted.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.0
- */
- UnicodeString& format(int32_t number,
- UnicodeString& appendTo) const;
-
- /**
- * Redeclared NumberFormat method.
- * Format an int64 number. These methods call the NumberFormat
- * pure virtual format() methods with the default FieldPosition.
- *
- * @param number The value to be formatted.
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @return Reference to 'appendTo' parameter.
- * @stable ICU 2.8
- */
- UnicodeString& format(int64_t number,
- UnicodeString& appendTo) const;
- /**
- * Parse the given string using this object's choices. The method
- * does string comparisons to try to find an optimal match.
- * If no object can be parsed, index is unchanged, and NULL is
- * returned. The result is returned as the most parsimonious
- * type of Formattable that will accomodate all of the
- * necessary precision. For example, if the result is exactly 12,
- * it will be returned as a long. However, if it is 1.5, it will
- * be returned as a double.
- *
- * @param text The text to be parsed.
- * @param result Formattable to be set to the parse result.
- * If parse fails, return contents are undefined.
- * @param parsePosition The position to start parsing at on input.
- * On output, moved to after the last successfully
- * parse character. On parse failure, does not change.
- * @see Formattable
- * @stable ICU 2.0
- */
- virtual void parse(const UnicodeString& text,
- Formattable& result,
- ParsePosition& parsePosition) const;
-
- // Declare here again to get rid of function hiding problems.
- /**
- * Parse the given string using this object's choices.
+ * Parse the given string using this object's choices. The method
+ * does string comparisons to try to find an optimal match.
+ * If no object can be parsed, index is unchanged, and NULL is
+ * returned. The result is returned as the most parsimonious
+ * type of Formattable that will accommodate all of the
+ * necessary precision. For example, if the result is exactly 12,
+ * it will be returned as a long. However, if it is 1.5, it will
+ * be returned as a double.
*
* @param text The text to be parsed.
* @param result Formattable to be set to the parse result.
- * @param status Output parameter filled in with success or failure status.
+ * If parse fails, return contents are undefined.
+ * @param parsePosition The position to start parsing at on input.
+ * On output, moved to after the last successfully
+ * parse character. On parse failure, does not change.
+ * @see Formattable
* @stable ICU 2.0
*/
- virtual void parse(const UnicodeString& text,
- Formattable& result,
- UErrorCode& status) const;
+ void parse(const UnicodeString& text, Formattable& result,
+ ParsePosition& parsePosition) const U_OVERRIDE;
/**
* Parses text from the given string as a currency amount. Unlike
* (U+00A4) in its prefix or suffix.
*
* @param text the string to parse
- * @param result output parameter to receive result. This will have
- * its currency set to the parsed ISO currency code.
- * @param pos input-output position; on input, the position within
- * text to match; must have 0 <= pos.getIndex() < text.length();
- * on output, the position after the last matched character. If
- * the parse fails, the position in unchanged upon output.
- * @return a reference to result
- * @internal
+ * @param pos input-output position; on input, the position within text
+ * to match; must have 0 <= pos.getIndex() < text.length();
+ * on output, the position after the last matched character.
+ * If the parse fails, the position in unchanged upon output.
+ * @return if parse succeeds, a pointer to a newly-created CurrencyAmount
+ * object (owned by the caller) containing information about
+ * the parsed currency; if parse fails, this is NULL.
+ * @stable ICU 49
*/
- virtual Formattable& parseCurrency(const UnicodeString& text,
- Formattable& result,
- ParsePosition& pos) const;
+ CurrencyAmount* parseCurrency(const UnicodeString& text, ParsePosition& pos) const U_OVERRIDE;
/**
* Returns the decimal format symbols, which is generally not changed
*/
virtual void setNegativeSuffix(const UnicodeString& newValue);
+#ifndef U_HIDE_DRAFT_API
+ /**
+ * Whether to show the plus sign on positive (non-negative) numbers; for example, "+12"
+ *
+ * For more control over sign display, use NumberFormatter.
+ *
+ * @return Whether the sign is shown on positive numbers and zero.
+ * @draft ICU 64
+ */
+ UBool isSignAlwaysShown() const;
+
+ /**
+ * Set whether to show the plus sign on positive (non-negative) numbers; for example, "+12".
+ *
+ * For more control over sign display, use NumberFormatter.
+ *
+ * @param value true to always show a sign; false to hide the sign on positive numbers and zero.
+ * @draft ICU 64
+ */
+ void setSignAlwaysShown(UBool value);
+#endif /* U_HIDE_DRAFT_API */
+
/**
* Get the multiplier for use in percent, permill, etc.
* For a percentage, set the suffixes to have "%" and the multiplier to be 100.
* (For Arabic, use arabic percent symbol).
* For a permill, set the suffixes to have "\\u2031" and the multiplier to be 1000.
*
+ * The number may also be multiplied by a power of ten; see getMultiplierScale().
+ *
* @return the multiplier for use in percent, permill, etc.
* Examples: with 100, 1.23 -> "123", and "123" -> 1.23
* @stable ICU 2.0
* (For Arabic, use arabic percent symbol).
* For a permill, set the suffixes to have "\\u2031" and the multiplier to be 1000.
*
+ * This method only supports integer multipliers. To multiply by a non-integer, pair this
+ * method with setMultiplierScale().
+ *
* @param newValue the new value of the multiplier for use in percent, permill, etc.
* Examples: with 100, 1.23 -> "123", and "123" -> 1.23
* @stable ICU 2.0
*/
virtual void setMultiplier(int32_t newValue);
+#ifndef U_HIDE_DRAFT_API
+ /**
+ * Gets the power of ten by which number should be multiplied before formatting, which
+ * can be combined with setMultiplier() to multiply by any arbitrary decimal value.
+ *
+ * A multiplier scale of 2 corresponds to multiplication by 100, and a multiplier scale
+ * of -2 corresponds to multiplication by 0.01.
+ *
+ * This method is analogous to UNUM_SCALE in getAttribute.
+ *
+ * @return the current value of the power-of-ten multiplier.
+ * @draft ICU 62
+ */
+ int32_t getMultiplierScale(void) const;
+
+ /**
+ * Sets a power of ten by which number should be multiplied before formatting, which
+ * can be combined with setMultiplier() to multiply by any arbitrary decimal value.
+ *
+ * A multiplier scale of 2 corresponds to multiplication by 100, and a multiplier scale
+ * of -2 corresponds to multiplication by 0.01.
+ *
+ * For example, to multiply numbers by 0.5 before formatting, you can do:
+ *
+ * <pre>
+ * df.setMultiplier(5);
+ * df.setMultiplierScale(-1);
+ * </pre>
+ *
+ * This method is analogous to UNUM_SCALE in setAttribute.
+ *
+ * @param newValue the new value of the power-of-ten multiplier.
+ * @draft ICU 62
+ */
+ void setMultiplierScale(int32_t newValue);
+#endif /* U_HIDE_DRAFT_API */
+
/**
* Get the rounding increment.
- * @return A positive rounding increment, or 0.0 if a rounding
+ * @return A positive rounding increment, or 0.0 if a custom rounding
* increment is not in effect.
* @see #setRoundingIncrement
* @see #getRoundingMode
/**
* Set the rounding increment. In the absence of a rounding increment,
* numbers will be rounded to the number of digits displayed.
- * @param newValue A positive rounding increment.
+ * @param newValue A positive rounding increment, or 0.0 to
+ * use the default rounding increment.
* Negative increments are equivalent to 0.0.
* @see #getRoundingIncrement
* @see #getRoundingMode
* @see #setRoundingMode
* @stable ICU 2.0
*/
- virtual ERoundingMode getRoundingMode(void) const;
+ virtual ERoundingMode getRoundingMode(void) const U_OVERRIDE;
/**
- * Set the rounding mode.
+ * Set the rounding mode.
* @param roundingMode A rounding mode
* @see #setRoundingIncrement
* @see #getRoundingIncrement
* @see #getRoundingMode
* @stable ICU 2.0
*/
- virtual void setRoundingMode(ERoundingMode roundingMode);
+ virtual void setRoundingMode(ERoundingMode roundingMode) U_OVERRIDE;
/**
* Get the width to which the output of format() is padded.
* Set the character used to pad to the format width. If padding
* is not enabled, then this will take effect if padding is later
* enabled.
- * @param padChar a string containing the pad charcter. If the string
- * has length 0, then the pad characer is set to ' '. Otherwise
+ * @param padChar a string containing the pad character. If the string
+ * has length 0, then the pad character is set to ' '. Otherwise
* padChar.char32At(0) will be used as the pad character.
* @see #setFormatWidth
* @see #getFormatWidth
* @see #setPadPosition
* @stable ICU 2.0
*/
- virtual void setPadCharacter(const UnicodeString &padChar);
+ virtual void setPadCharacter(const UnicodeString& padChar);
/**
* Get the position at which padding will take place. This is the location
* @see #setExponentSignAlwaysShown
* @stable ICU 2.0
*/
- virtual UBool isScientificNotation(void);
+ virtual UBool isScientificNotation(void) const;
/**
* Set whether or not scientific notation is used. When scientific notation
* @see #setExponentSignAlwaysShown
* @stable ICU 2.0
*/
- virtual UBool isExponentSignAlwaysShown(void);
+ virtual UBool isExponentSignAlwaysShown(void) const;
/**
* Set whether the exponent sign is always shown. This has no effect
*/
virtual void setSecondaryGroupingSize(int32_t newValue);
+#ifndef U_HIDE_DRAFT_API
+ /**
+ * Returns the minimum number of grouping digits.
+ * Grouping separators are output if there are at least this many
+ * digits to the left of the first (rightmost) grouping separator,
+ * that is, there are at least (minimum grouping + grouping size) integer digits.
+ * (Subject to isGroupingUsed().)
+ *
+ * For example, if this value is 2, and the grouping size is 3, then
+ * 9999 -> "9999" and 10000 -> "10,000"
+ *
+ * The default value for this attribute is 0.
+ * A value of 1, 0, or lower, means that the use of grouping separators
+ * only depends on the grouping size (and on isGroupingUsed()).
+ *
+ * NOTE: The CLDR data is used in NumberFormatter but not in DecimalFormat.
+ * This is for backwards compatibility reasons.
+ *
+ * For more control over grouping strategies, use NumberFormatter.
+ *
+ * @see setMinimumGroupingDigits
+ * @see getGroupingSize
+ * @draft ICU 64
+ */
+ int32_t getMinimumGroupingDigits() const;
+
+ /**
+ * Sets the minimum grouping digits. Setting to a value less than or
+ * equal to 1 turns off minimum grouping digits.
+ *
+ * For more control over grouping strategies, use NumberFormatter.
+ *
+ * @param newValue the new value of minimum grouping digits.
+ * @see getMinimumGroupingDigits
+ * @draft ICU 64
+ */
+ void setMinimumGroupingDigits(int32_t newValue);
+#endif /* U_HIDE_DRAFT_API */
+
+
/**
* Allows you to get the behavior of the decimal separator with integers.
* (The decimal separator will always appear with decimals.)
*/
virtual void setDecimalSeparatorAlwaysShown(UBool newValue);
+ /**
+ * Allows you to get the parse behavior of the pattern decimal mark.
+ *
+ * @return TRUE if input must contain a match to decimal mark in pattern
+ * @stable ICU 54
+ */
+ UBool isDecimalPatternMatchRequired(void) const;
+
+ /**
+ * Allows you to set the parse behavior of the pattern decimal mark.
+ *
+ * if TRUE, the input must have a decimal mark if one was specified in the pattern. When
+ * FALSE the decimal mark may be omitted from the input.
+ *
+ * @param newValue set TRUE if input must contain a match to decimal mark in pattern
+ * @stable ICU 54
+ */
+ virtual void setDecimalPatternMatchRequired(UBool newValue);
+
+#ifndef U_HIDE_DRAFT_API
+ /**
+ * Returns whether to ignore exponents when parsing.
+ *
+ * @return Whether to ignore exponents when parsing.
+ * @see #setParseNoExponent
+ * @draft ICU 64
+ */
+ UBool isParseNoExponent() const;
+
+ /**
+ * Specifies whether to stop parsing when an exponent separator is encountered. For
+ * example, parses "123E4" to 123 (with parse position 3) instead of 1230000 (with parse position
+ * 5).
+ *
+ * @param value true to prevent exponents from being parsed; false to allow them to be parsed.
+ * @draft ICU 64
+ */
+ void setParseNoExponent(UBool value);
+
+ /**
+ * Returns whether parsing is sensitive to case (lowercase/uppercase).
+ *
+ * @return Whether parsing is case-sensitive.
+ * @see #setParseCaseSensitive
+ * @draft ICU 64
+ */
+ UBool isParseCaseSensitive() const;
+
+ /**
+ * Whether to pay attention to case when parsing; default is to ignore case (perform
+ * case-folding). For example, "A" == "a" in case-insensitive but not case-sensitive mode.
+ *
+ * Currency symbols are never case-folded. For example, "us$1.00" will not parse in case-insensitive
+ * mode, even though "US$1.00" parses.
+ *
+ * @param value true to enable case-sensitive parsing (the default); false to force
+ * case-sensitive parsing behavior.
+ * @draft ICU 64
+ */
+ void setParseCaseSensitive(UBool value);
+
+ /**
+ * Returns whether truncation of high-order integer digits should result in an error.
+ * By default, setMaximumIntegerDigits truncates high-order digits silently.
+ *
+ * @return Whether an error code is set if high-order digits are truncated.
+ * @see setFormatFailIfMoreThanMaxDigits
+ * @draft ICU 64
+ */
+ UBool isFormatFailIfMoreThanMaxDigits() const;
+
+ /**
+ * Sets whether truncation of high-order integer digits should result in an error.
+ * By default, setMaximumIntegerDigits truncates high-order digits silently.
+ *
+ * @param value Whether to set an error code if high-order digits are truncated.
+ * @draft ICU 64
+ */
+ void setFormatFailIfMoreThanMaxDigits(UBool value);
+#endif /* U_HIDE_DRAFT_API */
+
+
/**
* Synthesizes a pattern string that represents the current state
* of this Format object.
* set to a failure result.
* @stable ICU 2.0
*/
- virtual void applyPattern(const UnicodeString& pattern,
- UParseError& parseError,
- UErrorCode& status);
+ virtual void applyPattern(const UnicodeString& pattern, UParseError& parseError, UErrorCode& status);
+
/**
* Sets the pattern.
* @param pattern The pattern to be applied.
* set to a failure result.
* @stable ICU 2.0
*/
- virtual void applyPattern(const UnicodeString& pattern,
- UErrorCode& status);
+ virtual void applyPattern(const UnicodeString& pattern, UErrorCode& status);
/**
* Apply the given pattern to this Format object. The pattern
* set to a failure result.
* @stable ICU 2.0
*/
- virtual void applyLocalizedPattern(const UnicodeString& pattern,
- UParseError& parseError,
+ virtual void applyLocalizedPattern(const UnicodeString& pattern, UParseError& parseError,
UErrorCode& status);
/**
* set to a failure result.
* @stable ICU 2.0
*/
- virtual void applyLocalizedPattern(const UnicodeString& pattern,
- UErrorCode& status);
+ virtual void applyLocalizedPattern(const UnicodeString& pattern, UErrorCode& status);
/**
* @see NumberFormat#setMaximumIntegerDigits
* @stable ICU 2.0
*/
- virtual void setMaximumIntegerDigits(int32_t newValue);
+ void setMaximumIntegerDigits(int32_t newValue) U_OVERRIDE;
/**
* Sets the minimum number of digits allowed in the integer portion of a
* @see NumberFormat#setMinimumIntegerDigits
* @stable ICU 2.0
*/
- virtual void setMinimumIntegerDigits(int32_t newValue);
+ void setMinimumIntegerDigits(int32_t newValue) U_OVERRIDE;
/**
* Sets the maximum number of digits allowed in the fraction portion of a
* @see NumberFormat#setMaximumFractionDigits
* @stable ICU 2.0
*/
- virtual void setMaximumFractionDigits(int32_t newValue);
+ void setMaximumFractionDigits(int32_t newValue) U_OVERRIDE;
/**
* Sets the minimum number of digits allowed in the fraction portion of a
* @see NumberFormat#setMinimumFractionDigits
* @stable ICU 2.0
*/
- virtual void setMinimumFractionDigits(int32_t newValue);
+ void setMinimumFractionDigits(int32_t newValue) U_OVERRIDE;
/**
* Returns the minimum number of significant digits that will be
* Sets the minimum number of significant digits that will be
* displayed. If <code>min</code> is less than one then it is set
* to one. If the maximum significant digits count is less than
- * <code>min</code>, then it is set to <code>min</code>. This
- * value has no effect unless areSignificantDigits() returns true.
+ * <code>min</code>, then it is set to <code>min</code>.
+ * This function also enables the use of significant digits
+ * by this formatter - areSignificantDigitsUsed() will return TRUE.
+ * @see #areSignificantDigitsUsed
* @param min the fewest significant digits to be shown
* @stable ICU 3.0
*/
* displayed. If <code>max</code> is less than one then it is set
* to one. If the minimum significant digits count is greater
* than <code>max</code>, then it is set to <code>max</code>.
- * This value has no effect unless areSignificantDigits() returns
- * true.
+ * This function also enables the use of significant digits
+ * by this formatter - areSignificantDigitsUsed() will return TRUE.
+ * @see #areSignificantDigitsUsed
* @param max the most significant digits to be shown
* @stable ICU 3.0
*/
*/
void setSignificantDigitsUsed(UBool useSignificantDigits);
- public:
+ /**
+ * Group-set several settings used for numbers in date formats.
+ * Avoids calls to touch for each separate setting.
+ * Equivalent to:
+ * setGroupingUsed(FALSE);
+ * setDecimalSeparatorAlwaysShown(FALSE);
+ * setParseIntegerOnly(TRUE);
+ * setMinimumFractionDigits(0);
+ * @internal
+ */
+ void setDateSettings(void) U_OVERRIDE;
+
/**
* Sets the currency used to display currency
* amounts. This takes effect immediately, if this format is a
* @param ec input-output error code
* @stable ICU 3.0
*/
- virtual void setCurrency(const UChar* theCurrency, UErrorCode& ec);
+ void setCurrency(const char16_t* theCurrency, UErrorCode& ec) U_OVERRIDE;
/**
* Sets the currency used to display currency amounts. See
- * setCurrency(const UChar*, UErrorCode&).
- * @deprecated ICU 3.0. Use setCurrency(const UChar*, UErrorCode&).
+ * setCurrency(const char16_t*, UErrorCode&).
+ * @deprecated ICU 3.0. Use setCurrency(const char16_t*, UErrorCode&).
+ */
+ virtual void setCurrency(const char16_t* theCurrency);
+
+ /**
+ * Sets the `Currency Usage` object used to display currency.
+ * This takes effect immediately, if this format is a
+ * currency format.
+ * @param newUsage new currency usage object to use.
+ * @param ec input-output error code
+ * @stable ICU 54
*/
- virtual void setCurrency(const UChar* theCurrency);
+ void setCurrencyUsage(UCurrencyUsage newUsage, UErrorCode* ec);
/**
- * The resource tags we use to retrieve decimal format data from
- * locale resource bundles.
- * @deprecated ICU 3.4. This string has no public purpose. Please don't use it.
+ * Returns the `Currency Usage` object used to display currency
+ * @stable ICU 54
*/
- static const char fgNumberPatterns[];
+ UCurrencyUsage getCurrencyUsage() const;
-public:
+#ifndef U_HIDE_INTERNAL_API
+
+ /**
+ * Format a number and save it into the given DecimalQuantity.
+ * Internal, not intended for public use.
+ * @internal
+ */
+ void formatToDecimalQuantity(double number, number::impl::DecimalQuantity& output,
+ UErrorCode& status) const;
+
+ /**
+ * Get a DecimalQuantity corresponding to a formattable as it would be
+ * formatted by this DecimalFormat.
+ * Internal, not intended for public use.
+ * @internal
+ */
+ void formatToDecimalQuantity(const Formattable& number, number::impl::DecimalQuantity& output,
+ UErrorCode& status) const;
+
+#endif /* U_HIDE_INTERNAL_API */
+
+#ifndef U_HIDE_DRAFT_API
+ /**
+ * Converts this DecimalFormat to a (Localized)NumberFormatter. Starting
+ * in ICU 60, NumberFormatter is the recommended way to format numbers.
+ * You can use the returned LocalizedNumberFormatter to format numbers and
+ * get a FormattedNumber, which contains a string as well as additional
+ * annotations about the formatted value.
+ *
+ * If a memory allocation failure occurs, the return value of this method
+ * might be null. If you are concerned about correct recovery from
+ * out-of-memory situations, use this pattern:
+ *
+ * <pre>
+ * FormattedNumber result;
+ * if (auto* ptr = df->toNumberFormatter(status)) {
+ * result = ptr->formatDouble(123, status);
+ * }
+ * </pre>
+ *
+ * If you are not concerned about out-of-memory situations, or if your
+ * environment throws exceptions when memory allocation failure occurs,
+ * you can chain the methods, like this:
+ *
+ * <pre>
+ * FormattedNumber result = df
+ * ->toNumberFormatter(status)
+ * ->formatDouble(123, status);
+ * </pre>
+ *
+ * NOTE: The returned LocalizedNumberFormatter is owned by this DecimalFormat.
+ * If a non-const method is called on the DecimalFormat, or if the DecimalFormat
+ * is deleted, the object becomes invalid. If you plan to keep the return value
+ * beyond the lifetime of the DecimalFormat, copy it to a local variable:
+ *
+ * <pre>
+ * LocalizedNumberFormatter lnf;
+ * if (auto* ptr = df->toNumberFormatter(status)) {
+ * lnf = *ptr;
+ * }
+ * </pre>
+ *
+ * @param status Set on failure, like U_MEMORY_ALLOCATION_ERROR.
+ * @return A pointer to an internal object, or nullptr on failure.
+ * Do not delete the return value!
+ * @draft ICU 64
+ */
+ const number::LocalizedNumberFormatter* toNumberFormatter(UErrorCode& status) const;
+#endif /* U_HIDE_DRAFT_API */
+
+#ifndef U_HIDE_DEPRECATED_API
+ /**
+ * Deprecated: Like {@link #toNumberFormatter(UErrorCode&) const},
+ * but does not take an error code.
+ *
+ * The new signature should be used in case an error occurs while returning the
+ * LocalizedNumberFormatter.
+ *
+ * This old signature will be removed in ICU 65.
+ *
+ * @return A reference to an internal object.
+ * @deprecated ICU 64
+ */
+ const number::LocalizedNumberFormatter& toNumberFormatter() const;
+#endif /* U_HIDE_DEPRECATED_API */
/**
* Return the class ID for this class. This is useful only for
* other classes have different class IDs.
* @stable ICU 2.0
*/
- virtual UClassID getDynamicClassID(void) const;
+ UClassID getDynamicClassID(void) const U_OVERRIDE;
-private:
-
- DecimalFormat(); // default constructor not implemented
-
- int32_t precision() const;
-
- /**
- * Initialize all fields of a new DecimalFormatter.
- * Common code for use by constructors.
- */
- void init();
-
- /**
- * Do real work of constructing a new DecimalFormat.
- */
- void construct(UErrorCode& status,
- UParseError& parseErr,
- const UnicodeString* pattern = 0,
- DecimalFormatSymbols* symbolsToAdopt = 0
- );
+#ifndef U_HIDE_INTERNAL_API
/**
- * Does the real work of generating a pattern.
- *
- * @param result Output param which will receive the pattern.
- * Previous contents are deleted.
- * @param localized TRUE return localized pattern.
- * @return A reference to 'result'.
- */
- UnicodeString& toPattern(UnicodeString& result, UBool localized) const;
-
- /**
- * Does the real work of applying a pattern.
- * @param pattern The pattern to be applied.
- * @param localized If true, the pattern is localized; else false.
- * @param parseError Struct to recieve information on position
- * of error if an error is encountered
- * @param status Output param set to success/failure code on
- * exit. If the pattern is invalid, this will be
- * set to a failure result.
- */
- void applyPattern(const UnicodeString& pattern,
- UBool localized,
- UParseError& parseError,
- UErrorCode& status);
-
- /*
- * similar to applyPattern, but without re-gen affix for currency
+ * Set whether DecimalFormatSymbols copy in toNumberFormatter
+ * is deep (clone) or shallow (pointer copy). Apple <rdar://problem/49955427>
+ * @internal
*/
- void applyPatternInternally(const UnicodeString& pluralCount,
- const UnicodeString& pattern,
- UBool localized,
- UParseError& parseError,
- UErrorCode& status);
+ void setDFSShallowCopy(UBool shallow);
- /*
- * only apply pattern without expand affixes
- */
- void applyPatternWithoutExpandAffix(const UnicodeString& pattern,
- UBool localized,
- UParseError& parseError,
- UErrorCode& status);
+#endif /* U_HIDE_INTERNAL_API */
+private:
- /*
- * expand affixes (after apply patter) and re-compute fFormatWidth
- */
- void expandAffixAdjustWidth(const UnicodeString* pluralCount);
+ /** Rebuilds the formatter object from the property bag. */
+ void touch(UErrorCode& status);
+ /** Rebuilds the formatter object, ignoring any error code. */
+ void touchNoError();
/**
- * Do the work of formatting a number, either a double or a long.
+ * Updates the property bag with settings from the given pattern.
*
- * @param appendTo Output parameter to receive result.
- * Result is appended to existing contents.
- * @param handler Records information about field positions.
- * @param digits the digits to be formatted.
- * @param isInteger if TRUE format the digits as Integer.
- * @return Reference to 'appendTo' parameter.
+ * @param pattern The pattern string to parse.
+ * @param ignoreRounding Whether to leave out rounding information (minFrac, maxFrac, and rounding
+ * increment) when parsing the pattern. This may be desirable if a custom rounding mode, such
+ * as CurrencyUsage, is to be used instead. One of {@link
+ * PatternStringParser#IGNORE_ROUNDING_ALWAYS}, {@link PatternStringParser#IGNORE_ROUNDING_IF_CURRENCY},
+ * or {@link PatternStringParser#IGNORE_ROUNDING_NEVER}.
+ * @see PatternAndPropertyUtils#parseToExistingProperties
*/
- UnicodeString& subformat(UnicodeString& appendTo,
- FieldPositionHandler& handler,
- DigitList& digits,
- UBool isInteger) const;
-
-
- void parse(const UnicodeString& text,
- Formattable& result,
- ParsePosition& pos,
- UBool parseCurrency) const;
+ void setPropertiesFromPattern(const UnicodeString& pattern, int32_t ignoreRounding,
+ UErrorCode& status);
- enum {
- fgStatusInfinite,
- fgStatusLength // Leave last in list.
- } StatusFlags;
+ const numparse::impl::NumberParserImpl* getParser(UErrorCode& status) const;
- UBool subparse(const UnicodeString& text,
- const UnicodeString* negPrefix,
- const UnicodeString* negSuffix,
- const UnicodeString* posPrefix,
- const UnicodeString* posSuffix,
- UBool currencyParsing,
- int8_t type,
- ParsePosition& parsePosition,
- DigitList& digits, UBool* status,
- UChar* currency) const;
+ const numparse::impl::NumberParserImpl* getCurrencyParser(UErrorCode& status) const;
- // Mixed style parsing for currency.
- // It parses against the current currency pattern
- // using complex affix comparison
- // parses against the currency plural patterns using complex affix comparison,
- // and parses against the current pattern using simple affix comparison.
- UBool parseForCurrency(const UnicodeString& text,
- ParsePosition& parsePosition,
- DigitList& digits,
- UBool* status,
- UChar* currency) const;
+ static void fieldPositionHelper(const number::FormattedNumber& formatted, FieldPosition& fieldPosition,
+ int32_t offset, UErrorCode& status);
- int32_t skipPadding(const UnicodeString& text, int32_t position) const;
+ static void fieldPositionIteratorHelper(const number::FormattedNumber& formatted,
+ FieldPositionIterator* fpi, int32_t offset, UErrorCode& status);
- int32_t compareAffix(const UnicodeString& input,
- int32_t pos,
- UBool isNegative,
- UBool isPrefix,
- const UnicodeString* affixPat,
- UBool currencyParsing,
- int8_t type,
- UChar* currency) const;
+ void setupFastFormat();
- static int32_t compareSimpleAffix(const UnicodeString& affix,
- const UnicodeString& input,
- int32_t pos,
- UBool strict);
+ bool fastFormatDouble(double input, UnicodeString& output) const;
- static int32_t skipRuleWhiteSpace(const UnicodeString& text, int32_t pos);
+ bool fastFormatInt64(int64_t input, UnicodeString& output) const;
- static int32_t skipUWhiteSpace(const UnicodeString& text, int32_t pos);
+ void doFastFormatInt32(int32_t input, bool isNegative, UnicodeString& output) const;
- int32_t compareComplexAffix(const UnicodeString& affixPat,
- const UnicodeString& input,
- int32_t pos,
- int8_t type,
- UChar* currency) const;
+ //=====================================================================================//
+ // INSTANCE FIELDS //
+ //=====================================================================================//
- static int32_t match(const UnicodeString& text, int32_t pos, UChar32 ch);
- static int32_t match(const UnicodeString& text, int32_t pos, const UnicodeString& str);
+ // One instance field for the implementation, keep all fields inside of an implementation
+ // class defined in number_mapper.h
+ number::impl::DecimalFormatFields* fields = nullptr;
- static UBool matchSymbol(const UnicodeString &text, int32_t position, int32_t length, const UnicodeString &symbol,
- UnicodeSet *sset, UChar32 schar);
+ // Allow child class CompactDecimalFormat to access fProperties:
+ friend class CompactDecimalFormat;
- /**
- * Get a decimal format symbol.
- * Returns a const reference to the symbol string.
- * @internal
- */
- inline const UnicodeString &getConstSymbol(DecimalFormatSymbols::ENumberFormatSymbol symbol) const;
-
- int32_t appendAffix(UnicodeString& buf,
- double number,
- FieldPositionHandler& handler,
- UBool isNegative,
- UBool isPrefix) const;
-
- /**
- * Append an affix to the given UnicodeString, using quotes if
- * there are special characters. Single quotes themselves must be
- * escaped in either case.
- */
- void appendAffixPattern(UnicodeString& appendTo, const UnicodeString& affix,
- UBool localized) const;
-
- void appendAffixPattern(UnicodeString& appendTo,
- const UnicodeString* affixPattern,
- const UnicodeString& expAffix, UBool localized) const;
-
- void expandAffix(const UnicodeString& pattern,
- UnicodeString& affix,
- double number,
- FieldPositionHandler& handler,
- UBool doFormat,
- const UnicodeString* pluralCount) const;
-
- void expandAffixes(const UnicodeString* pluralCount);
-
- void addPadding(UnicodeString& appendTo,
- FieldPositionHandler& handler,
- int32_t prefixLen, int32_t suffixLen) const;
+ // Allow MeasureFormat to use fieldPositionHelper:
+ friend class MeasureFormat;
- UBool isGroupingPosition(int32_t pos) const;
-
- void setCurrencyForSymbols();
-
- // similar to setCurrency without re-compute the affixes for currency.
- // If currency changes, the affix pattern for currency is not changed,
- // but the affix will be changed. So, affixes need to be
- // re-computed in setCurrency(), but not in setCurrencyInternally().
- virtual void setCurrencyInternally(const UChar* theCurrency, UErrorCode& ec);
-
- // set up currency affix patterns for mix parsing.
- // The patterns saved here are the affix patterns of default currency
- // pattern and the unique affix patterns of the plural currency patterns.
- // Those patterns are used by parseForCurrency().
- void setupCurrencyAffixPatterns(UErrorCode& status);
-
- // set up the currency affixes used in currency plural formatting.
- // It sets up both fAffixesForCurrency for currency pattern if the current
- // pattern contains 3 currency signs,
- // and it sets up fPluralAffixesForCurrency for currency plural patterns.
- void setupCurrencyAffixes(const UnicodeString& pattern,
- UBool setupForCurrentPattern,
- UBool setupForPluralPattern,
- UErrorCode& status);
-
- // hashtable operations
- Hashtable* initHashForAffixPattern(UErrorCode& status);
- Hashtable* initHashForAffix(UErrorCode& status);
-
- void deleteHashForAffixPattern();
- void deleteHashForAffix(Hashtable*& table);
-
- void copyHashForAffixPattern(const Hashtable* source,
- Hashtable* target, UErrorCode& status);
- void copyHashForAffix(const Hashtable* source,
- Hashtable* target, UErrorCode& status);
-
- UnicodeString& _format(int64_t number,
- UnicodeString& appendTo,
- FieldPositionHandler& handler) const;
- UnicodeString& _format(double number,
- UnicodeString& appendTo,
- FieldPositionHandler& handler) const;
- UnicodeString& _format(const DigitList &number,
- UnicodeString& appendTo,
- FieldPositionHandler& handler,
- UErrorCode &status) const;
-
- // currency sign count
- enum {
- fgCurrencySignCountZero,
- fgCurrencySignCountInSymbolFormat,
- fgCurrencySignCountInISOFormat,
- fgCurrencySignCountInPluralFormat
- } CurrencySignCount;
-
- /**
- * Constants.
- */
-
- UnicodeString fPositivePrefix;
- UnicodeString fPositiveSuffix;
- UnicodeString fNegativePrefix;
- UnicodeString fNegativeSuffix;
- UnicodeString* fPosPrefixPattern;
- UnicodeString* fPosSuffixPattern;
- UnicodeString* fNegPrefixPattern;
- UnicodeString* fNegSuffixPattern;
-
- /**
- * Formatter for ChoiceFormat-based currency names. If this field
- * is not null, then delegate to it to format currency symbols.
- * @since ICU 2.6
- */
- ChoiceFormat* fCurrencyChoice;
-
- DigitList * fMultiplier; // NULL for multiplier of one
- int32_t fGroupingSize;
- int32_t fGroupingSize2;
- UBool fDecimalSeparatorAlwaysShown;
- DecimalFormatSymbols* fSymbols;
-
- UBool fUseSignificantDigits;
- int32_t fMinSignificantDigits;
- int32_t fMaxSignificantDigits;
-
- UBool fUseExponentialNotation;
- int8_t fMinExponentDigits;
- UBool fExponentSignAlwaysShown;
-
- DigitList* fRoundingIncrement; // NULL if no rounding increment specified.
- ERoundingMode fRoundingMode;
-
- UChar32 fPad;
- int32_t fFormatWidth;
- EPadPosition fPadPosition;
-
- /*
- * Following are used for currency format
- */
- // pattern used in this formatter
- UnicodeString fFormatPattern;
- // style is only valid when decimal formatter is constructed by
- // DecimalFormat(pattern, decimalFormatSymbol, style)
- int fStyle;
- /*
- * Represents whether this is a currency format, and which
- * currency format style.
- * 0: not currency format type;
- * 1: currency style -- symbol name, such as "$" for US dollar.
- * 2: currency style -- ISO name, such as USD for US dollar.
- * 3: currency style -- plural long name, such as "US Dollar" for
- * "1.00 US Dollar", or "US Dollars" for
- * "3.00 US Dollars".
- */
- int fCurrencySignCount;
-
-
- /* For currency parsing purose,
- * Need to remember all prefix patterns and suffix patterns of
- * every currency format pattern,
- * including the pattern of default currecny style
- * and plural currency style. And the patterns are set through applyPattern.
- */
- // TODO: innerclass?
- /* This is not needed in the class declaration, so it is moved into decimfmp.cpp
- struct AffixPatternsForCurrency : public UMemory {
- // negative prefix pattern
- UnicodeString negPrefixPatternForCurrency;
- // negative suffix pattern
- UnicodeString negSuffixPatternForCurrency;
- // positive prefix pattern
- UnicodeString posPrefixPatternForCurrency;
- // positive suffix pattern
- UnicodeString posSuffixPatternForCurrency;
- int8_t patternType;
-
- AffixPatternsForCurrency(const UnicodeString& negPrefix,
- const UnicodeString& negSuffix,
- const UnicodeString& posPrefix,
- const UnicodeString& posSuffix,
- int8_t type) {
- negPrefixPatternForCurrency = negPrefix;
- negSuffixPatternForCurrency = negSuffix;
- posPrefixPatternForCurrency = posPrefix;
- posSuffixPatternForCurrency = posSuffix;
- patternType = type;
- }
- };
- */
-
- /* affix for currency formatting when the currency sign in the pattern
- * equals to 3, such as the pattern contains 3 currency sign or
- * the formatter style is currency plural format style.
- */
- /* This is not needed in the class declaration, so it is moved into decimfmp.cpp
- struct AffixesForCurrency : public UMemory {
- // negative prefix
- UnicodeString negPrefixForCurrency;
- // negative suffix
- UnicodeString negSuffixForCurrency;
- // positive prefix
- UnicodeString posPrefixForCurrency;
- // positive suffix
- UnicodeString posSuffixForCurrency;
-
- int32_t formatWidth;
-
- AffixesForCurrency(const UnicodeString& negPrefix,
- const UnicodeString& negSuffix,
- const UnicodeString& posPrefix,
- const UnicodeString& posSuffix) {
- negPrefixForCurrency = negPrefix;
- negSuffixForCurrency = negSuffix;
- posPrefixForCurrency = posPrefix;
- posSuffixForCurrency = posSuffix;
- }
- };
- */
-
- // Affix pattern set for currency.
- // It is a set of AffixPatternsForCurrency,
- // each element of the set saves the negative prefix pattern,
- // negative suffix pattern, positive prefix pattern,
- // and positive suffix pattern of a pattern.
- // It is used for currency mixed style parsing.
- // It is actually is a set.
- // The set contains the default currency pattern from the locale,
- // and the currency plural patterns.
- // Since it is a set, it does not contain duplicated items.
- // For example, if 2 currency plural patterns are the same, only one pattern
- // is included in the set. When parsing, we do not check whether the plural
- // count match or not.
- Hashtable* fAffixPatternsForCurrency;
-
- // Following 2 are affixes for currency.
- // It is a hash map from plural count to AffixesForCurrency.
- // AffixesForCurrency saves the negative prefix,
- // negative suffix, positive prefix, and positive suffix of a pattern.
- // It is used during currency formatting only when the currency sign count
- // is 3. In which case, the affixes are getting from here, not
- // from the fNegativePrefix etc.
- Hashtable* fAffixesForCurrency; // for current pattern
- Hashtable* fPluralAffixesForCurrency; // for plural pattern
-
- // Information needed for DecimalFormat to format/parse currency plural.
- CurrencyPluralInfo* fCurrencyPluralInfo;
-
-protected:
-
- /**
- * Returns the currency in effect for this formatter. Subclasses
- * should override this method as needed. Unlike getCurrency(),
- * this method should never return "".
- * @result output parameter for null-terminated result, which must
- * have a capacity of at least 4
- * @internal
- */
- virtual void getEffectiveCurrency(UChar* result, UErrorCode& ec) const;
-
- /** number of integer digits
- * @stable ICU 2.4
- */
- static const int32_t kDoubleIntegerDigits;
- /** number of fraction digits
- * @stable ICU 2.4
- */
- static const int32_t kDoubleFractionDigits;
-
- /**
- * When someone turns on scientific mode, we assume that more than this
- * number of digits is due to flipping from some other mode that didn't
- * restrict the maximum, and so we force 1 integer digit. We don't bother
- * to track and see if someone is using exponential notation with more than
- * this number, it wouldn't make sense anyway, and this is just to make sure
- * that someone turning on scientific mode with default settings doesn't
- * end up with lots of zeroes.
- * @stable ICU 2.8
- */
- static const int32_t kMaxScientificIntegerDigits;
};
-inline UnicodeString&
-DecimalFormat::format(const Formattable& obj,
- UnicodeString& appendTo,
- UErrorCode& status) const {
- // Don't use Format:: - use immediate base class only,
- // in case immediate base modifies behavior later.
- return NumberFormat::format(obj, appendTo, status);
-}
-
-inline UnicodeString&
-DecimalFormat::format(double number,
- UnicodeString& appendTo) const {
- FieldPosition pos(0);
- return format(number, appendTo, pos);
-}
-
-inline UnicodeString&
-DecimalFormat::format(int32_t number,
- UnicodeString& appendTo) const {
- FieldPosition pos(0);
- return format((int64_t)number, appendTo, pos);
-}
-
-inline const UnicodeString &
-DecimalFormat::getConstSymbol(DecimalFormatSymbols::ENumberFormatSymbol symbol) const {
- return fSymbols->getConstSymbol(symbol);
-}
-
U_NAMESPACE_END
+#endif // U_SHOW_CPLUSPLUS_API
#endif /* #if !UCONFIG_NO_FORMATTING */
projects / apple / icu.git / blobdiff