ICU 4.8.1.1  4.8.1.1
choicfmt.h
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00001 /*
00002 ********************************************************************************
00003 *   Copyright (C) 1997-2011, International Business Machines
00004 *   Corporation and others.  All Rights Reserved.
00005 ********************************************************************************
00006 *
00007 * File CHOICFMT.H
00008 *
00009 * Modification History:
00010 *
00011 *   Date        Name        Description
00012 *   02/19/97    aliu        Converted from java.
00013 *   03/20/97    helena      Finished first cut of implementation and got rid
00014 *                           of nextDouble/previousDouble and replaced with
00015 *                           boolean array.
00016 *   4/10/97     aliu        Clean up.  Modified to work on AIX.
00017 *   8/6/97      nos         Removed overloaded constructor, member var 'buffer'.
00018 *   07/22/98    stephen     Removed operator!= (implemented in Format)
00019 ********************************************************************************
00020 */
00021 
00022 #ifndef CHOICFMT_H
00023 #define CHOICFMT_H
00024 
00025 #include "unicode/utypes.h"
00026 
00032 #if !UCONFIG_NO_FORMATTING
00033 
00034 #include "unicode/fieldpos.h"
00035 #include "unicode/format.h"
00036 #include "unicode/messagepattern.h"
00037 #include "unicode/numfmt.h"
00038 #include "unicode/unistr.h"
00039 
00040 U_NAMESPACE_BEGIN
00041 
00042 class MessageFormat;
00043 
00168 class U_I18N_API ChoiceFormat: public NumberFormat {
00169 public:
00178     ChoiceFormat(const UnicodeString& pattern,
00179                  UErrorCode& status);
00180 
00181 
00194     ChoiceFormat(const double* limits,
00195                  const UnicodeString* formats,
00196                  int32_t count );
00197 
00212     ChoiceFormat(const double* limits,
00213                  const UBool* closures,
00214                  const UnicodeString* formats,
00215                  int32_t count);
00216 
00223     ChoiceFormat(const ChoiceFormat& that);
00224 
00231     const ChoiceFormat& operator=(const ChoiceFormat& that);
00232 
00237     virtual ~ChoiceFormat();
00238 
00246     virtual Format* clone(void) const;
00247 
00256     virtual UBool operator==(const Format& other) const;
00257 
00266     virtual void applyPattern(const UnicodeString& pattern,
00267                               UErrorCode& status);
00268 
00279     virtual void applyPattern(const UnicodeString& pattern,
00280                              UParseError& parseError,
00281                              UErrorCode& status);
00290     virtual UnicodeString& toPattern(UnicodeString &pattern) const;
00291 
00305     virtual void setChoices(const double* limitsToCopy,
00306                             const UnicodeString* formatsToCopy,
00307                             int32_t count );
00308 
00319     virtual void setChoices(const double* limits,
00320                             const UBool* closures,
00321                             const UnicodeString* formats,
00322                             int32_t count);
00323 
00332     virtual const double* getLimits(int32_t& count) const;
00333 
00342     virtual const UBool* getClosures(int32_t& count) const;
00343 
00352     virtual const UnicodeString* getFormats(int32_t& count) const;
00353 
00354 
00355     using NumberFormat::format;
00356 
00368     virtual UnicodeString& format(double number,
00369                                   UnicodeString& appendTo,
00370                                   FieldPosition& pos) const;
00382     virtual UnicodeString& format(int32_t number,
00383                                   UnicodeString& appendTo,
00384                                   FieldPosition& pos) const;
00385 
00397     virtual UnicodeString& format(int64_t number,
00398                                   UnicodeString& appendTo,
00399                                   FieldPosition& pos) const;
00400 
00415     virtual UnicodeString& format(const Formattable* objs,
00416                                   int32_t cnt,
00417                                   UnicodeString& appendTo,
00418                                   FieldPosition& pos,
00419                                   UErrorCode& success) const;
00434     virtual UnicodeString& format(const Formattable& obj,
00435                                   UnicodeString& appendTo,
00436                                   FieldPosition& pos,
00437                                   UErrorCode& status) const;
00438 
00450     UnicodeString& format(const Formattable& obj,
00451                           UnicodeString& appendTo,
00452                           UErrorCode& status) const;
00453 
00465     UnicodeString& format(  double number,
00466                             UnicodeString& appendTo) const;
00467 
00479     UnicodeString& format(  int32_t number,
00480                             UnicodeString& appendTo) const;
00481 
00496     virtual void parse(const UnicodeString& text,
00497                        Formattable& result,
00498                        ParsePosition& parsePosition) const;
00499 
00512     virtual void parse(const UnicodeString& text,
00513                        Formattable& result,
00514                        UErrorCode& status) const;
00515 
00524     virtual UClassID getDynamicClassID(void) const;
00525 
00537     static UClassID U_EXPORT2 getStaticClassID(void);
00538 
00539 private:
00546     static UnicodeString& dtos(double value, UnicodeString& string);
00547 
00548     ChoiceFormat(); // default constructor not implemented
00549 
00561     ChoiceFormat(const UnicodeString& newPattern,
00562                  UParseError& parseError,
00563                  UErrorCode& status);
00564 
00565     friend class MessageFormat;
00566 
00567     virtual void setChoices(const double* limits,
00568                             const UBool* closures,
00569                             const UnicodeString* formats,
00570                             int32_t count,
00571                             UErrorCode &errorCode);
00572 
00580     static int32_t findSubMessage(const MessagePattern &pattern, int32_t partIndex, double number);
00581 
00582     static double parseArgument(
00583             const MessagePattern &pattern, int32_t partIndex,
00584             const UnicodeString &source, ParsePosition &pos);
00585 
00594     static int32_t matchStringUntilLimitPart(
00595             const MessagePattern &pattern, int32_t partIndex, int32_t limitPartIndex,
00596             const UnicodeString &source, int32_t sourceOffset);
00597 
00604     UErrorCode constructorErrorCode;
00605 
00613     MessagePattern msgPattern;
00614 
00654     // double*         fChoiceLimits;
00655     // UBool*          fClosures;
00656     // UnicodeString*  fChoiceFormats;
00657     // int32_t         fCount;
00658 };
00659 
00660 inline UnicodeString&
00661 ChoiceFormat::format(const Formattable& obj,
00662                      UnicodeString& appendTo,
00663                      UErrorCode& status) const {
00664     // Don't use Format:: - use immediate base class only,
00665     // in case immediate base modifies behavior later.
00666     return NumberFormat::format(obj, appendTo, status);
00667 }
00668 
00669 inline UnicodeString&
00670 ChoiceFormat::format(double number,
00671                      UnicodeString& appendTo) const {
00672     return NumberFormat::format(number, appendTo);
00673 }
00674 
00675 inline UnicodeString&
00676 ChoiceFormat::format(int32_t number,
00677                      UnicodeString& appendTo) const {
00678     return NumberFormat::format(number, appendTo);
00679 }
00680 U_NAMESPACE_END
00681 
00682 #endif /* #if !UCONFIG_NO_FORMATTING */
00683 
00684 #endif // _CHOICFMT
00685 //eof
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