/* ************************************************************************ * Copyright (c) 2007, International Business Machines * Corporation and others. All Rights Reserved. ************************************************************************ */ #ifndef FLDSET_H_ #define FLDSET_H_ #include "unicode/utypes.h" #if !UCONFIG_NO_FORMATTING #include "unicode/calendar.h" #include "unicode/ucal.h" #include "unicode/udat.h" #include "unicode/udbgutil.h" #include "unicode/dbgutil.h" #include "unicode/unistr.h" #define U_FIELDS_SET_MAX 64 class FieldsSet { protected: /** * subclass interface * @param whichEnum which enumaration value goes with this set. Will be used to calculate str values and also enum size. */ FieldsSet(UDebugEnumType whichEnum); /** * subclass interface - no enum tie-in * @param fieldCount how many fields this can hold. */ FieldsSet(int32_t fieldsCount); public: /** * @param other "expected" set to match against * @param status - will return invalid argument if sets are not the same size * @return a formatted string listing which fields are set in * this, with the comparison made agaainst those fields in other. */ UnicodeString diffFrom(const FieldsSet& other, UErrorCode &status) const; public: /** * @param str string to parse * @param status formatted string for status */ int32_t parseFrom(const UnicodeString& str, UErrorCode& status) { return parseFrom(str,NULL,status); } public: int32_t parseFrom(const UnicodeString& str, const FieldsSet& inheritFrom, UErrorCode& status) { return parseFrom(str, &inheritFrom, status); } int32_t parseFrom(const UnicodeString& str, const FieldsSet* inheritFrom, UErrorCode& status); protected: /** * Callback interface for subclass. * This function is called when parsing a field name, such as "MONTH" in "MONTH=4". * Base implementation is to lookup the enum value using udbg_* utilities, or else as an integer if * enum is not available. * * If there is a special directive, the implementer can catch it here and return -1 after special processing completes. * * @param inheritFrom the set inheriting from - may be null. * @param name the field name (key side) * @param substr the string in question (value side) * @param status error status - set to error for failure. * @return field number, or negative if field should be skipped. */ virtual int32_t handleParseName(const FieldsSet* inheritFrom, const UnicodeString& name, const UnicodeString& substr, UErrorCode& status); /** * Callback interface for subclass. * Base implementation is to call parseValueDefault(...) * @param inheritFrom the set inheriting from - may be null. * @param field which field is being parsed * @param substr the string in question (value side) * @param status error status - set to error for failure. * @see parseValueDefault */ virtual void handleParseValue(const FieldsSet* inheritFrom, int32_t field, const UnicodeString& substr, UErrorCode& status); /** * the default implementation for handleParseValue. * Base implementation is to parse a decimal integer value, or inherit from inheritFrom if the string is 0-length. * Implementations of this function should call set(field,...) on successful parse. * @see handleParseValue */ void parseValueDefault(const FieldsSet* inheritFrom, int32_t field, const UnicodeString& substr, UErrorCode& status); /** * convenience implementation for handleParseValue * attempt to load a value from an enum value using udbg_enumByString() * if fails, will call parseValueDefault() * @see handleParseValue */ void parseValueEnum(UDebugEnumType type, const FieldsSet* inheritFrom, int32_t field, const UnicodeString& substr, UErrorCode& status); private: FieldsSet(); void construct(UDebugEnumType whichEnum, int32_t fieldCount); public: virtual ~FieldsSet(); void clear(); void clear(int32_t field); void set(int32_t field, int32_t amount); UBool isSet(int32_t field) const; int32_t get(int32_t field) const; UBool isSameType(const FieldsSet& other) const; int32_t fieldCount() const; protected: int32_t fValue[U_FIELDS_SET_MAX]; UBool fIsSet[U_FIELDS_SET_MAX]; protected: int32_t fFieldCount; UDebugEnumType fEnum; }; /** ------- Calendar Fields Set -------- **/ class CalendarFieldsSet : public FieldsSet { public: CalendarFieldsSet(); virtual ~CalendarFieldsSet(); // void clear(UCalendarDateFields field) { clear((int32_t)field); } // void set(UCalendarDateFields field, int32_t amount) { set ((int32_t)field, amount); } // UBool isSet(UCalendarDateFields field) const { return isSet((int32_t)field); } // int32_t get(UCalendarDateFields field) const { return get((int32_t)field); } /** * @param matches fillin to hold any fields different. Will have the calendar's value set on them. * @return true if the calendar matches in these fields. */ UBool matches(Calendar *cal, CalendarFieldsSet &diffSet, UErrorCode& status) const; /** * set the specified fields on this calendar. Doesn't clear first. Returns any errors the cale */ void setOnCalendar(Calendar *cal, UErrorCode& status) const; protected: void handleParseValue(const FieldsSet* inheritFrom, int32_t field, const UnicodeString& substr, UErrorCode& status); }; /** * This class simply implements a set of date and time styles * such as DATE=SHORT or TIME=SHORT,DATE=LONG */ class DateTimeStyleSet : public FieldsSet { public: DateTimeStyleSet(); virtual ~DateTimeStyleSet(); /** * @return the date style, or UDAT_NONE if not set */ UDateFormatStyle getDateStyle() const; /** * @return the time style, or UDAT_NONE if not set */ UDateFormatStyle getTimeStyle() const; protected: void handleParseValue(const FieldsSet* inheritFrom, int32_t field, const UnicodeString& substr, UErrorCode& status); int32_t handleParseName(const FieldsSet* inheritFrom, const UnicodeString& name, const UnicodeString& substr, UErrorCode& status); }; #endif /*!UCONFIG_NO_FORMAT*/ #endif /*FLDSET_H_*/