mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
382 lines
10 KiB
382 lines
10 KiB
/*
|
|
**********************************************************************
|
|
* Copyright (c) 2004-2016, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
**********************************************************************
|
|
* Author: Alan Liu
|
|
* Created: April 20, 2004
|
|
* Since: ICU 3.0
|
|
**********************************************************************
|
|
*/
|
|
#ifndef MEASUREFORMAT_H
|
|
#define MEASUREFORMAT_H
|
|
|
|
#include "unicode/utypes.h"
|
|
|
|
#if !UCONFIG_NO_FORMATTING
|
|
|
|
#include "unicode/format.h"
|
|
#include "unicode/udat.h"
|
|
|
|
/**
|
|
* \file
|
|
* \brief C++ API: Formatter for measure objects.
|
|
*/
|
|
|
|
/**
|
|
* Constants for various widths.
|
|
* There are 4 widths: Wide, Short, Narrow, Numeric.
|
|
* For example, for English, when formatting "3 hours"
|
|
* Wide is "3 hours"; short is "3 hrs"; narrow is "3h";
|
|
* formatting "3 hours 17 minutes" as numeric give "3:17"
|
|
* @stable ICU 53
|
|
*/
|
|
enum UMeasureFormatWidth {
|
|
|
|
// Wide, short, and narrow must be first and in this order.
|
|
/**
|
|
* Spell out measure units.
|
|
* @stable ICU 53
|
|
*/
|
|
UMEASFMT_WIDTH_WIDE,
|
|
|
|
/**
|
|
* Abbreviate measure units.
|
|
* @stable ICU 53
|
|
*/
|
|
UMEASFMT_WIDTH_SHORT,
|
|
|
|
/**
|
|
* Use symbols for measure units when possible.
|
|
* @stable ICU 53
|
|
*/
|
|
UMEASFMT_WIDTH_NARROW,
|
|
|
|
/**
|
|
* Completely omit measure units when possible. For example, format
|
|
* '5 hours, 37 minutes' as '5:37'
|
|
* @stable ICU 53
|
|
*/
|
|
UMEASFMT_WIDTH_NUMERIC,
|
|
|
|
/**
|
|
* Count of values in this enum.
|
|
* @stable ICU 53
|
|
*/
|
|
UMEASFMT_WIDTH_COUNT = 4
|
|
};
|
|
/** @stable ICU 53 */
|
|
typedef enum UMeasureFormatWidth UMeasureFormatWidth;
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
class Measure;
|
|
class MeasureUnit;
|
|
class NumberFormat;
|
|
class PluralRules;
|
|
class MeasureFormatCacheData;
|
|
class SharedNumberFormat;
|
|
class SharedPluralRules;
|
|
class QuantityFormatter;
|
|
class SimpleFormatter;
|
|
class ListFormatter;
|
|
class DateFormat;
|
|
|
|
/**
|
|
*
|
|
* A formatter for measure objects.
|
|
*
|
|
* @see Format
|
|
* @author Alan Liu
|
|
* @stable ICU 3.0
|
|
*/
|
|
class U_I18N_API MeasureFormat : public Format {
|
|
public:
|
|
using Format::parseObject;
|
|
using Format::format;
|
|
|
|
/**
|
|
* Constructor.
|
|
* @stable ICU 53
|
|
*/
|
|
MeasureFormat(
|
|
const Locale &locale, UMeasureFormatWidth width, UErrorCode &status);
|
|
|
|
/**
|
|
* Constructor.
|
|
* @stable ICU 53
|
|
*/
|
|
MeasureFormat(
|
|
const Locale &locale,
|
|
UMeasureFormatWidth width,
|
|
NumberFormat *nfToAdopt,
|
|
UErrorCode &status);
|
|
|
|
/**
|
|
* Copy constructor.
|
|
* @stable ICU 3.0
|
|
*/
|
|
MeasureFormat(const MeasureFormat &other);
|
|
|
|
/**
|
|
* Assignment operator.
|
|
* @stable ICU 3.0
|
|
*/
|
|
MeasureFormat &operator=(const MeasureFormat &rhs);
|
|
|
|
/**
|
|
* Destructor.
|
|
* @stable ICU 3.0
|
|
*/
|
|
virtual ~MeasureFormat();
|
|
|
|
/**
|
|
* Return true if given Format objects are semantically equal.
|
|
* @stable ICU 53
|
|
*/
|
|
virtual UBool operator==(const Format &other) const;
|
|
|
|
/**
|
|
* Clones this object polymorphically.
|
|
* @stable ICU 53
|
|
*/
|
|
virtual Format *clone() const;
|
|
|
|
/**
|
|
* Formats object to produce a string.
|
|
* @stable ICU 53
|
|
*/
|
|
virtual UnicodeString &format(
|
|
const Formattable &obj,
|
|
UnicodeString &appendTo,
|
|
FieldPosition &pos,
|
|
UErrorCode &status) const;
|
|
|
|
/**
|
|
* Parse a string to produce an object. This implementation sets
|
|
* status to U_UNSUPPORTED_ERROR.
|
|
*
|
|
* @draft ICU 53
|
|
*/
|
|
virtual void parseObject(
|
|
const UnicodeString &source,
|
|
Formattable &reslt,
|
|
ParsePosition &pos) const;
|
|
|
|
/**
|
|
* Formats measure objects to produce a string. An example of such a
|
|
* formatted string is 3 meters, 3.5 centimeters. Measure objects appear
|
|
* in the formatted string in the same order they appear in the "measures"
|
|
* array. The NumberFormat of this object is used only to format the amount
|
|
* of the very last measure. The other amounts are formatted with zero
|
|
* decimal places while rounding toward zero.
|
|
* @param measures array of measure objects.
|
|
* @param measureCount the number of measure objects.
|
|
* @param appendTo formatted string appended here.
|
|
* @param pos the field position.
|
|
* @param status the error.
|
|
* @return appendTo reference
|
|
*
|
|
* @stable ICU 53
|
|
*/
|
|
UnicodeString &formatMeasures(
|
|
const Measure *measures,
|
|
int32_t measureCount,
|
|
UnicodeString &appendTo,
|
|
FieldPosition &pos,
|
|
UErrorCode &status) const;
|
|
|
|
/**
|
|
* Formats a single measure per unit. An example of such a
|
|
* formatted string is 3.5 meters per second.
|
|
* @param measure The measure object. In above example, 3.5 meters.
|
|
* @param perUnit The per unit. In above example, it is
|
|
* *MeasureUnit::createSecond(status).
|
|
* @param appendTo formatted string appended here.
|
|
* @param pos the field position.
|
|
* @param status the error.
|
|
* @return appendTo reference
|
|
*
|
|
* @stable ICU 55
|
|
*/
|
|
UnicodeString &formatMeasurePerUnit(
|
|
const Measure &measure,
|
|
const MeasureUnit &perUnit,
|
|
UnicodeString &appendTo,
|
|
FieldPosition &pos,
|
|
UErrorCode &status) const;
|
|
|
|
|
|
/**
|
|
* Return a formatter for CurrencyAmount objects in the given
|
|
* locale.
|
|
* @param locale desired locale
|
|
* @param ec input-output error code
|
|
* @return a formatter object, or NULL upon error
|
|
* @stable ICU 3.0
|
|
*/
|
|
static MeasureFormat* U_EXPORT2 createCurrencyFormat(const Locale& locale,
|
|
UErrorCode& ec);
|
|
|
|
/**
|
|
* Return a formatter for CurrencyAmount objects in the default
|
|
* locale.
|
|
* @param ec input-output error code
|
|
* @return a formatter object, or NULL upon error
|
|
* @stable ICU 3.0
|
|
*/
|
|
static MeasureFormat* U_EXPORT2 createCurrencyFormat(UErrorCode& ec);
|
|
|
|
/**
|
|
* Return the class ID for this class. This is useful only for comparing to
|
|
* a return value from getDynamicClassID(). For example:
|
|
* <pre>
|
|
* . Base* polymorphic_pointer = createPolymorphicObject();
|
|
* . if (polymorphic_pointer->getDynamicClassID() ==
|
|
* . erived::getStaticClassID()) ...
|
|
* </pre>
|
|
* @return The class ID for all objects of this class.
|
|
* @stable ICU 53
|
|
*/
|
|
static UClassID U_EXPORT2 getStaticClassID(void);
|
|
|
|
/**
|
|
* Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This
|
|
* method is to implement a simple version of RTTI, since not all C++
|
|
* compilers support genuine RTTI. Polymorphic operator==() and clone()
|
|
* methods call this method.
|
|
*
|
|
* @return The class ID for this object. All objects of a
|
|
* given class have the same class ID. Objects of
|
|
* other classes have different class IDs.
|
|
* @stable ICU 53
|
|
*/
|
|
virtual UClassID getDynamicClassID(void) const;
|
|
|
|
protected:
|
|
/**
|
|
* Default constructor.
|
|
* @stable ICU 3.0
|
|
*/
|
|
MeasureFormat();
|
|
|
|
#ifndef U_HIDE_INTERNAL_API
|
|
|
|
/**
|
|
* ICU use only.
|
|
* Initialize or change MeasureFormat class from subclass.
|
|
* @internal.
|
|
*/
|
|
void initMeasureFormat(
|
|
const Locale &locale,
|
|
UMeasureFormatWidth width,
|
|
NumberFormat *nfToAdopt,
|
|
UErrorCode &status);
|
|
/**
|
|
* ICU use only.
|
|
* Allows subclass to change locale. Note that this method also changes
|
|
* the NumberFormat object. Returns TRUE if locale changed; FALSE if no
|
|
* change was made.
|
|
* @internal.
|
|
*/
|
|
UBool setMeasureFormatLocale(const Locale &locale, UErrorCode &status);
|
|
|
|
/**
|
|
* ICU use only.
|
|
* Let subclass change NumberFormat.
|
|
* @internal.
|
|
*/
|
|
void adoptNumberFormat(NumberFormat *nfToAdopt, UErrorCode &status);
|
|
|
|
/**
|
|
* ICU use only.
|
|
* @internal.
|
|
*/
|
|
const NumberFormat &getNumberFormat() const;
|
|
|
|
/**
|
|
* ICU use only.
|
|
* @internal.
|
|
*/
|
|
const PluralRules &getPluralRules() const;
|
|
|
|
/**
|
|
* ICU use only.
|
|
* @internal.
|
|
*/
|
|
Locale getLocale(UErrorCode &status) const;
|
|
|
|
/**
|
|
* ICU use only.
|
|
* @internal.
|
|
*/
|
|
const char *getLocaleID(UErrorCode &status) const;
|
|
|
|
#endif /* U_HIDE_INTERNAL_API */
|
|
|
|
private:
|
|
const MeasureFormatCacheData *cache;
|
|
const SharedNumberFormat *numberFormat;
|
|
const SharedPluralRules *pluralRules;
|
|
UMeasureFormatWidth width;
|
|
|
|
// Declared outside of MeasureFormatSharedData because ListFormatter
|
|
// objects are relatively cheap to copy; therefore, they don't need to be
|
|
// shared across instances.
|
|
ListFormatter *listFormatter;
|
|
|
|
const SimpleFormatter *getFormatterOrNull(
|
|
const MeasureUnit &unit, UMeasureFormatWidth width, int32_t index) const;
|
|
|
|
const SimpleFormatter *getFormatter(
|
|
const MeasureUnit &unit, UMeasureFormatWidth width, int32_t index,
|
|
UErrorCode &errorCode) const;
|
|
|
|
const SimpleFormatter *getPluralFormatter(
|
|
const MeasureUnit &unit, UMeasureFormatWidth width, int32_t index,
|
|
UErrorCode &errorCode) const;
|
|
|
|
const SimpleFormatter *getPerFormatter(
|
|
UMeasureFormatWidth width,
|
|
UErrorCode &status) const;
|
|
|
|
int32_t withPerUnitAndAppend(
|
|
const UnicodeString &formatted,
|
|
const MeasureUnit &perUnit,
|
|
UnicodeString &appendTo,
|
|
UErrorCode &status) const;
|
|
|
|
UnicodeString &formatMeasure(
|
|
const Measure &measure,
|
|
const NumberFormat &nf,
|
|
UnicodeString &appendTo,
|
|
FieldPosition &pos,
|
|
UErrorCode &status) const;
|
|
|
|
UnicodeString &formatMeasuresSlowTrack(
|
|
const Measure *measures,
|
|
int32_t measureCount,
|
|
UnicodeString& appendTo,
|
|
FieldPosition& pos,
|
|
UErrorCode& status) const;
|
|
|
|
UnicodeString &formatNumeric(
|
|
const Formattable *hms, // always length 3: [0] is hour; [1] is
|
|
// minute; [2] is second.
|
|
int32_t bitMap, // 1=hour set, 2=minute set, 4=second set
|
|
UnicodeString &appendTo,
|
|
UErrorCode &status) const;
|
|
|
|
UnicodeString &formatNumeric(
|
|
UDate date,
|
|
const DateFormat &dateFmt,
|
|
UDateFormatField smallestField,
|
|
const Formattable &smallestAmount,
|
|
UnicodeString &appendTo,
|
|
UErrorCode &status) const;
|
|
};
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif // #if !UCONFIG_NO_FORMATTING
|
|
#endif // #ifndef MEASUREFORMAT_H
|
|
|