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msgfmt.h
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1 /*
2 * Copyright (C) 2007-2013, International Business Machines Corporation and
3 * others. All Rights Reserved.
4 ********************************************************************************
5 *
6 * File MSGFMT.H
7 *
8 * Modification History:
9 *
10 * Date Name Description
11 * 02/19/97 aliu Converted from java.
12 * 03/20/97 helena Finished first cut of implementation.
13 * 07/22/98 stephen Removed operator!= (defined in Format)
14 * 08/19/2002 srl Removing Javaisms
15 *******************************************************************************/
16
17 #ifndef MSGFMT_H
18 #define MSGFMT_H
19
20 #include "unicode/utypes.h"
21
27 #if !UCONFIG_NO_FORMATTING
28
29 #include "unicode/format.h"
30 #include "unicode/locid.h"
31 #include "unicode/messagepattern.h"
32 #include "unicode/parseerr.h"
33 #include "unicode/plurfmt.h"
34 #include "unicode/plurrule.h"
35
36 U_CDECL_BEGIN
37 // Forward declaration.
38 struct UHashtable;
39 typedef struct UHashtable UHashtable;
40 U_CDECL_END
41
42 U_NAMESPACE_BEGIN
43
44 class AppendableWrapper;
45 class DateFormat;
46 class NumberFormat;
47
323 class U_I18N_API MessageFormat : public Format {
324 public:
325 #ifndef U_HIDE_OBSOLETE_API
326
331 enum EFormatNumber {
337 kMaxFormat = 10
338 };
339 #endif /* U_HIDE_OBSOLETE_API */
340
350 MessageFormat(const UnicodeString& pattern,
351 UErrorCode &status);
352
361 MessageFormat(const UnicodeString& pattern,
362 const Locale& newLocale,
363 UErrorCode& status);
374 MessageFormat(const UnicodeString& pattern,
375 const Locale& newLocale,
376 UParseError& parseError,
377 UErrorCode& status);
382 MessageFormat(const MessageFormat&);
383
388 const MessageFormat& operator=(const MessageFormat&);
389
394 virtual ~MessageFormat();
395
401 virtual Format* clone(void) const;
402
410 virtual UBool operator==(const Format& other) const;
411
417 virtual void setLocale(const Locale& theLocale);
418
425 virtual const Locale& getLocale(void) const;
426
435 virtual void applyPattern(const UnicodeString& pattern,
436 UErrorCode& status);
447 virtual void applyPattern(const UnicodeString& pattern,
448 UParseError& parseError,
449 UErrorCode& status);
450
469 virtual void applyPattern(const UnicodeString& pattern,
470 UMessagePatternApostropheMode aposMode,
471 UParseError* parseError,
472 UErrorCode& status);
473
478 UMessagePatternApostropheMode getApostropheMode() const {
479 return msgPattern.getApostropheMode();
480 }
481
490 virtual UnicodeString& toPattern(UnicodeString& appendTo) const;
491
508 virtual void adoptFormats(Format** formatsToAdopt, int32_t count);
509
524 virtual void setFormats(const Format** newFormats, int32_t cnt);
525
526
541 virtual void adoptFormat(int32_t formatNumber, Format* formatToAdopt);
542
552 virtual void setFormat(int32_t formatNumber, const Format& format);
553
562 virtual StringEnumeration* getFormatNames(UErrorCode& status);
563
577 virtual Format* getFormat(const UnicodeString& formatName, UErrorCode& status);
578
592 virtual void setFormat(const UnicodeString& formatName, const Format& format, UErrorCode& status);
593
608 virtual void adoptFormat(const UnicodeString& formatName, Format* formatToAdopt, UErrorCode& status);
609
622 virtual const Format** getFormats(int32_t& count) const;
623
624
625 using Format::format;
626
644 UnicodeString& format(const Formattable* source,
645 int32_t count,
646 UnicodeString& appendTo,
647 FieldPosition& ignore,
648 UErrorCode& status) const;
649
667 static UnicodeString& format(const UnicodeString& pattern,
668 const Formattable* arguments,
669 int32_t count,
670 UnicodeString& appendTo,
671 UErrorCode& status);
672
693 virtual UnicodeString& format(const Formattable& obj,
694 UnicodeString& appendTo,
695 FieldPosition& pos,
696 UErrorCode& status) const;
697
716 UnicodeString& format(const UnicodeString* argumentNames,
717 const Formattable* arguments,
718 int32_t count,
719 UnicodeString& appendTo,
720 UErrorCode& status) const;
734 virtual Formattable* parse(const UnicodeString& source,
735 ParsePosition& pos,
736 int32_t& count) const;
737
753 virtual Formattable* parse(const UnicodeString& source,
754 int32_t& count,
755 UErrorCode& status) const;
756
769 virtual void parseObject(const UnicodeString& source,
770 Formattable& result,
771 ParsePosition& pos) const;
772
792 static UnicodeString autoQuoteApostrophe(const UnicodeString& pattern,
793 UErrorCode& status);
794
795
803 UBool usesNamedArguments() const;
804
805
806 #ifndef U_HIDE_INTERNAL_API
807
817 int32_t getArgTypeCount() const;
818 #endif /* U_HIDE_INTERNAL_API */
819
831 virtual UClassID getDynamicClassID(void) const;
832
844 static UClassID U_EXPORT2 getStaticClassID(void);
845
846 #ifndef U_HIDE_INTERNAL_API
847
857 static UBool equalFormats(const void* left, const void* right);
858 #endif /* U_HIDE_INTERNAL_API */
859
860 private:
861
862 Locale fLocale;
863 MessagePattern msgPattern;
864 Format** formatAliases; // see getFormats
865 int32_t formatAliasesCapacity;
866
867 MessageFormat(); // default constructor not implemented
868
875 class U_I18N_API PluralSelectorProvider : public PluralFormat::PluralSelector {
876 public:
877 PluralSelectorProvider(const MessageFormat &mf, UPluralType type);
878 virtual ~PluralSelectorProvider();
879 virtual UnicodeString select(void *ctx, double number, UErrorCode& ec) const;
880
881 void reset();
882 private:
883 const MessageFormat &msgFormat;
884 PluralRules* rules;
885 UPluralType type;
886 };
887
896 Formattable::Type* argTypes;
897 int32_t argTypeCount;
898 int32_t argTypeCapacity;
899
905 UBool hasArgTypeConflicts;
906
907 // Variable-size array management
908 UBool allocateArgTypes(int32_t capacity, UErrorCode& status);
909
917 NumberFormat* defaultNumberFormat;
918 DateFormat* defaultDateFormat;
919
920 UHashtable* cachedFormatters;
921 UHashtable* customFormatArgStarts;
922
923 PluralSelectorProvider pluralProvider;
924 PluralSelectorProvider ordinalProvider;
925
930 const NumberFormat* getDefaultNumberFormat(UErrorCode&) const;
931 const DateFormat* getDefaultDateFormat(UErrorCode&) const;
932
939 static int32_t findKeyword( const UnicodeString& s,
940 const UChar * const *list);
941
947 UnicodeString& format(const Formattable* arguments,
948 const UnicodeString *argumentNames,
949 int32_t cnt,
950 UnicodeString& appendTo,
951 FieldPosition* pos,
952 UErrorCode& status) const;
953
971 void format(int32_t msgStart,
972 const void *plNumber,
973 const Formattable* arguments,
974 const UnicodeString *argumentNames,
975 int32_t cnt,
976 AppendableWrapper& appendTo,
977 FieldPosition* pos,
978 UErrorCode& success) const;
979
980 UnicodeString getArgName(int32_t partIndex);
981
982 void setArgStartFormat(int32_t argStart, Format* formatter, UErrorCode& status);
983
984 void setCustomArgStartFormat(int32_t argStart, Format* formatter, UErrorCode& status);
985
986 int32_t nextTopLevelArgStart(int32_t partIndex) const;
987
988 UBool argNameMatches(int32_t partIndex, const UnicodeString& argName, int32_t argNumber);
989
990 void cacheExplicitFormats(UErrorCode& status);
991
992 Format* createAppropriateFormat(UnicodeString& type,
993 UnicodeString& style,
994 Formattable::Type& formattableType,
995 UParseError& parseError,
996 UErrorCode& ec);
997
998 const Formattable* getArgFromListByName(const Formattable* arguments,
999 const UnicodeString *argumentNames,
1000 int32_t cnt, UnicodeString& name) const;
1001
1002 Formattable* parse(int32_t msgStart,
1003 const UnicodeString& source,
1004 ParsePosition& pos,
1005 int32_t& count,
1006 UErrorCode& ec) const;
1007
1008 FieldPosition* updateMetaData(AppendableWrapper& dest, int32_t prevLength,
1009 FieldPosition* fp, const Formattable* argId) const;
1010
1016 int32_t findOtherSubMessage(int32_t partIndex) const;
1017
1023 int32_t findFirstPluralNumberArg(int32_t msgStart, const UnicodeString &argName) const;
1024
1025 Format* getCachedFormatter(int32_t argumentNumber) const;
1026
1027 UnicodeString getLiteralStringUntilNextArgument(int32_t from) const;
1028
1029 void copyObjects(const MessageFormat& that, UErrorCode& ec);
1030
1031 void formatComplexSubMessage(int32_t msgStart,
1032 const void *plNumber,
1033 const Formattable* arguments,
1034 const UnicodeString *argumentNames,
1035 int32_t cnt,
1036 AppendableWrapper& appendTo,
1037 UErrorCode& success) const;
1038
1042 NumberFormat* createIntegerFormat(const Locale& locale, UErrorCode& status) const;
1043
1051 const Formattable::Type* getArgTypeList(int32_t& listCount) const {
1052 listCount = argTypeCount;
1053 return argTypes;
1054 }
1055
1059 void resetPattern();
1060
1065 class U_I18N_API DummyFormat : public Format {
1066 public:
1067 virtual UBool operator==(const Format&) const;
1068 virtual Format* clone() const;
1069 virtual UnicodeString& format(const Formattable& obj,
1070 UnicodeString& appendTo,
1071 UErrorCode& status) const;
1072 virtual UnicodeString& format(const Formattable&,
1073 UnicodeString& appendTo,
1074 FieldPosition&,
1075 UErrorCode& status) const;
1076 virtual UnicodeString& format(const Formattable& obj,
1077 UnicodeString& appendTo,
1078 FieldPositionIterator* posIter,
1079 UErrorCode& status) const;
1080 virtual void parseObject(const UnicodeString&,
1081 Formattable&,
1082 ParsePosition&) const;
1083 };
1084
1085 friend class MessageFormatAdapter; // getFormatTypeList() access
1086 };
1087
1088 U_NAMESPACE_END
1089
1090 #endif /* #if !UCONFIG_NO_FORMATTING */
1091
1092 #endif // _MSGFMT
1093 //eof