680 lines
17 KiB
C++
680 lines
17 KiB
C++
/*
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*******************************************************************************
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* Copyright (C) 1997-2006, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*
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* File FMTABLE.CPP
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*
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* Modification History:
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*
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* Date Name Description
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* 03/25/97 clhuang Initial Implementation.
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********************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/fmtable.h"
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#include "unicode/ustring.h"
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#include "unicode/measure.h"
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#include "unicode/curramt.h"
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#include "cmemory.h"
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// *****************************************************************************
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// class Formattable
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// *****************************************************************************
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U_NAMESPACE_BEGIN
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UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Formattable)
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//-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
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// NOTE: As of 3.0, there are limitations to the UObject API. It does
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// not (yet) support cloning, operator=, nor operator==. RTTI is also
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// restricted in that subtype testing is not (yet) implemented. To
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// work around this, I implement some simple inlines here. Later
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// these can be modified or removed. [alan]
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// NOTE: These inlines assume that all fObjects are in fact instances
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// of the Measure class, which is true as of 3.0. [alan]
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// Return TRUE if *a == *b.
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static inline UBool objectEquals(const UObject* a, const UObject* b) {
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// LATER: return *a == *b;
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return *((const Measure*) a) == *((const Measure*) b);
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}
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// Return a clone of *a.
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static inline UObject* objectClone(const UObject* a) {
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// LATER: return a->clone();
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return ((const Measure*) a)->clone();
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}
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// Return TRUE if *a is an instance of Measure.
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static inline UBool instanceOfMeasure(const UObject* a) {
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// LATER: return a->instanceof(Measure::getStaticClassID());
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return a->getDynamicClassID() ==
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CurrencyAmount::getStaticClassID();
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}
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/**
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* Creates a new Formattable array and copies the values from the specified
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* original.
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* @param array the original array
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* @param count the original array count
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* @return the new Formattable array.
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*/
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static inline Formattable* createArrayCopy(const Formattable* array, int32_t count) {
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Formattable *result = new Formattable[count];
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for (int32_t i=0; i<count; ++i) result[i] = array[i]; // Don't memcpy!
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return result;
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}
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//-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
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/**
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* Set 'ec' to 'err' only if 'ec' is not already set to a failing UErrorCode.
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*/
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static inline void setError(UErrorCode& ec, UErrorCode err) {
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if (U_SUCCESS(ec)) {
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ec = err;
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}
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}
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// -------------------------------------
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// default constructor.
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// Creates a formattable object with a long value 0.
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Formattable::Formattable()
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: UObject(), fType(kLong)
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{
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fBogus.setToBogus();
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fValue.fInt64 = 0;
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}
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// -------------------------------------
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// Creates a formattable object with a Date instance.
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Formattable::Formattable(UDate date, ISDATE /*isDate*/)
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: UObject(), fType(kDate)
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{
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fBogus.setToBogus();
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fValue.fDate = date;
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}
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// -------------------------------------
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// Creates a formattable object with a double value.
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Formattable::Formattable(double value)
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: UObject(), fType(kDouble)
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{
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fBogus.setToBogus();
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fValue.fDouble = value;
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}
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// -------------------------------------
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// Creates a formattable object with a long value.
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Formattable::Formattable(int32_t value)
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: UObject(), fType(kLong)
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{
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fBogus.setToBogus();
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fValue.fInt64 = value;
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}
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// -------------------------------------
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// Creates a formattable object with a long value.
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Formattable::Formattable(int64_t value)
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: UObject(), fType(kInt64)
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{
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fBogus.setToBogus();
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fValue.fInt64 = value;
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}
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// -------------------------------------
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// Creates a formattable object with a UnicodeString instance.
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Formattable::Formattable(const UnicodeString& stringToCopy)
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: UObject(), fType(kString)
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{
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fBogus.setToBogus();
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fValue.fString = new UnicodeString(stringToCopy);
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}
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// -------------------------------------
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// Creates a formattable object with a UnicodeString* value.
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// (adopting symantics)
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Formattable::Formattable(UnicodeString* stringToAdopt)
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: UObject(), fType(kString)
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{
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fBogus.setToBogus();
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fValue.fString = stringToAdopt;
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}
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Formattable::Formattable(UObject* objectToAdopt)
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: UObject(), fType(kObject)
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{
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fBogus.setToBogus();
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fValue.fObject = objectToAdopt;
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}
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// -------------------------------------
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Formattable::Formattable(const Formattable* arrayToCopy, int32_t count)
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: UObject(), fType(kArray)
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{
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fBogus.setToBogus();
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fValue.fArrayAndCount.fArray = createArrayCopy(arrayToCopy, count);
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fValue.fArrayAndCount.fCount = count;
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}
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// -------------------------------------
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// copy constructor
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Formattable::Formattable(const Formattable &source)
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: UObject(source), fType(kLong)
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{
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fBogus.setToBogus();
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*this = source;
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}
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// -------------------------------------
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// assignment operator
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Formattable&
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Formattable::operator=(const Formattable& source)
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{
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if (this != &source)
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{
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// Disposes the current formattable value/setting.
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dispose();
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// Sets the correct data type for this value.
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fType = source.fType;
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switch (fType)
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{
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case kArray:
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// Sets each element in the array one by one and records the array count.
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fValue.fArrayAndCount.fCount = source.fValue.fArrayAndCount.fCount;
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fValue.fArrayAndCount.fArray = createArrayCopy(source.fValue.fArrayAndCount.fArray,
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source.fValue.fArrayAndCount.fCount);
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break;
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case kString:
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// Sets the string value.
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fValue.fString = new UnicodeString(*source.fValue.fString);
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break;
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case kDouble:
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// Sets the double value.
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fValue.fDouble = source.fValue.fDouble;
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break;
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case kLong:
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case kInt64:
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// Sets the long value.
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fValue.fInt64 = source.fValue.fInt64;
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break;
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case kDate:
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// Sets the Date value.
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fValue.fDate = source.fValue.fDate;
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break;
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case kObject:
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fValue.fObject = objectClone(source.fValue.fObject);
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break;
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}
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}
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return *this;
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}
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// -------------------------------------
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UBool
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Formattable::operator==(const Formattable& that) const
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{
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int32_t i;
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if (this == &that) return TRUE;
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// Returns FALSE if the data types are different.
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if (fType != that.fType) return FALSE;
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// Compares the actual data values.
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UBool equal = TRUE;
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switch (fType) {
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case kDate:
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equal = (fValue.fDate == that.fValue.fDate);
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break;
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case kDouble:
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equal = (fValue.fDouble == that.fValue.fDouble);
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break;
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case kLong:
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case kInt64:
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equal = (fValue.fInt64 == that.fValue.fInt64);
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break;
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case kString:
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equal = (*(fValue.fString) == *(that.fValue.fString));
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break;
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case kArray:
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if (fValue.fArrayAndCount.fCount != that.fValue.fArrayAndCount.fCount) {
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equal = FALSE;
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break;
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}
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// Checks each element for equality.
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for (i=0; i<fValue.fArrayAndCount.fCount; ++i) {
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if (fValue.fArrayAndCount.fArray[i] != that.fValue.fArrayAndCount.fArray[i]) {
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equal = FALSE;
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break;
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}
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}
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break;
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case kObject:
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equal = objectEquals(fValue.fObject, that.fValue.fObject);
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break;
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}
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return equal;
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}
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// -------------------------------------
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Formattable::~Formattable()
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{
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dispose();
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}
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// -------------------------------------
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void Formattable::dispose()
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{
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// Deletes the data value if necessary.
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switch (fType) {
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case kString:
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delete fValue.fString;
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break;
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case kArray:
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delete[] fValue.fArrayAndCount.fArray;
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break;
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case kObject:
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delete fValue.fObject;
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break;
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default:
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break;
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}
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}
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Formattable *
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Formattable::clone() const {
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return new Formattable(*this);
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}
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// -------------------------------------
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// Gets the data type of this Formattable object.
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Formattable::Type
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Formattable::getType() const
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{
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return fType;
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}
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UBool
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Formattable::isNumeric() const {
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switch (fType) {
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case kDouble:
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case kLong:
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case kInt64:
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return TRUE;
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default:
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return FALSE;
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}
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}
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// -------------------------------------
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int32_t
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//Formattable::getLong(UErrorCode* status) const
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Formattable::getLong(UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return 0;
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}
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switch (fType) {
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case Formattable::kLong:
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return (int32_t)fValue.fInt64;
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case Formattable::kInt64:
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if (fValue.fInt64 > INT32_MAX) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MAX;
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} else if (fValue.fInt64 < INT32_MIN) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MIN;
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} else {
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return (int32_t)fValue.fInt64;
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}
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case Formattable::kDouble:
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if (fValue.fDouble > INT32_MAX) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MAX;
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} else if (fValue.fDouble < INT32_MIN) {
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status = U_INVALID_FORMAT_ERROR;
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return INT32_MIN;
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} else {
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return (int32_t)fValue.fDouble; // loses fraction
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}
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case Formattable::kObject:
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// TODO Later replace this with instanceof call
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if (instanceOfMeasure(fValue.fObject)) {
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return ((const Measure*) fValue.fObject)->
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getNumber().getLong(status);
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}
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default:
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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}
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// -------------------------------------
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int64_t
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Formattable::getInt64(UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return 0;
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}
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switch (fType) {
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case Formattable::kLong:
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case Formattable::kInt64:
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return fValue.fInt64;
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case Formattable::kDouble:
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if (fValue.fDouble > U_INT64_MAX) {
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status = U_INVALID_FORMAT_ERROR;
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return U_INT64_MAX;
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} else if (fValue.fDouble < U_INT64_MIN) {
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status = U_INVALID_FORMAT_ERROR;
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return U_INT64_MIN;
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} else {
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return (int64_t)fValue.fDouble;
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}
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case Formattable::kObject:
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// TODO Later replace this with instanceof call
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if (instanceOfMeasure(fValue.fObject)) {
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return ((const Measure*) fValue.fObject)->
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getNumber().getInt64(status);
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}
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default:
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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}
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// -------------------------------------
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double
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Formattable::getDouble(UErrorCode& status) const
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{
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if (U_FAILURE(status)) {
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return 0;
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}
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switch (fType) {
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case Formattable::kLong:
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case Formattable::kInt64: // loses precision
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return (double)fValue.fInt64;
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case Formattable::kDouble:
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return fValue.fDouble;
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case Formattable::kObject:
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// TODO Later replace this with instanceof call
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if (instanceOfMeasure(fValue.fObject)) {
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return ((const Measure*) fValue.fObject)->
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getNumber().getDouble(status);
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}
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default:
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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}
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const UObject*
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Formattable::getObject() const {
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return (fType == kObject) ? fValue.fObject : NULL;
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}
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// -------------------------------------
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// Sets the value to a double value d.
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void
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Formattable::setDouble(double d)
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{
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dispose();
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fType = kDouble;
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fValue.fDouble = d;
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}
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// -------------------------------------
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// Sets the value to a long value l.
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void
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Formattable::setLong(int32_t l)
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{
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dispose();
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fType = kLong;
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fValue.fInt64 = l;
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}
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// -------------------------------------
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// Sets the value to an int64 value ll.
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void
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Formattable::setInt64(int64_t ll)
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{
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dispose();
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fType = kInt64;
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fValue.fInt64 = ll;
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}
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// -------------------------------------
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// Sets the value to a Date instance d.
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void
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Formattable::setDate(UDate d)
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{
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dispose();
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fType = kDate;
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fValue.fDate = d;
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}
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// -------------------------------------
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// Sets the value to a string value stringToCopy.
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void
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Formattable::setString(const UnicodeString& stringToCopy)
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{
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dispose();
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fType = kString;
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fValue.fString = new UnicodeString(stringToCopy);
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}
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// -------------------------------------
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// Sets the value to an array of Formattable objects.
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void
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Formattable::setArray(const Formattable* array, int32_t count)
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{
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dispose();
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fType = kArray;
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fValue.fArrayAndCount.fArray = createArrayCopy(array, count);
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fValue.fArrayAndCount.fCount = count;
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}
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// -------------------------------------
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// Adopts the stringToAdopt value.
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void
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Formattable::adoptString(UnicodeString* stringToAdopt)
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{
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dispose();
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fType = kString;
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fValue.fString = stringToAdopt;
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}
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// -------------------------------------
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// Adopts the array value and its count.
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void
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Formattable::adoptArray(Formattable* array, int32_t count)
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{
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dispose();
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fType = kArray;
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fValue.fArrayAndCount.fArray = array;
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fValue.fArrayAndCount.fCount = count;
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}
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void
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Formattable::adoptObject(UObject* objectToAdopt) {
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dispose();
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fType = kObject;
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fValue.fObject = objectToAdopt;
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}
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// -------------------------------------
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UnicodeString&
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Formattable::getString(UnicodeString& result, UErrorCode& status) const
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{
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if (fType != kString) {
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setError(status, U_INVALID_FORMAT_ERROR);
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result.setToBogus();
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} else {
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result = *fValue.fString;
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}
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return result;
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}
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// -------------------------------------
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const UnicodeString&
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Formattable::getString(UErrorCode& status) const
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{
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if (fType != kString) {
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setError(status, U_INVALID_FORMAT_ERROR);
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return *getBogus();
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}
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return *fValue.fString;
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}
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// -------------------------------------
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UnicodeString&
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Formattable::getString(UErrorCode& status)
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{
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if (fType != kString) {
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setError(status, U_INVALID_FORMAT_ERROR);
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return *getBogus();
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}
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return *fValue.fString;
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}
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// -------------------------------------
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const Formattable*
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Formattable::getArray(int32_t& count, UErrorCode& status) const
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{
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if (fType != kArray) {
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setError(status, U_INVALID_FORMAT_ERROR);
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count = 0;
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return NULL;
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}
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count = fValue.fArrayAndCount.fCount;
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return fValue.fArrayAndCount.fArray;
|
|
}
|
|
|
|
// -------------------------------------
|
|
// Gets the bogus string, ensures mondo bogosity.
|
|
|
|
UnicodeString*
|
|
Formattable::getBogus() const
|
|
{
|
|
return (UnicodeString*)&fBogus; /* cast away const :-( */
|
|
}
|
|
|
|
#if 0
|
|
//----------------------------------------------------
|
|
// console I/O
|
|
//----------------------------------------------------
|
|
#ifdef _DEBUG
|
|
|
|
#if U_IOSTREAM_SOURCE >= 199711
|
|
#include <iostream>
|
|
using namespace std;
|
|
#elif U_IOSTREAM_SOURCE >= 198506
|
|
#include <iostream.h>
|
|
#endif
|
|
|
|
#include "unicode/datefmt.h"
|
|
#include "unistrm.h"
|
|
|
|
class FormattableStreamer /* not : public UObject because all methods are static */ {
|
|
public:
|
|
static void streamOut(ostream& stream, const Formattable& obj);
|
|
|
|
private:
|
|
FormattableStreamer() {} // private - forbid instantiation
|
|
};
|
|
|
|
// This is for debugging purposes only. This will send a displayable
|
|
// form of the Formattable object to the output stream.
|
|
|
|
void
|
|
FormattableStreamer::streamOut(ostream& stream, const Formattable& obj)
|
|
{
|
|
static DateFormat *defDateFormat = 0;
|
|
|
|
UnicodeString buffer;
|
|
switch(obj.getType()) {
|
|
case Formattable::kDate :
|
|
// Creates a DateFormat instance for formatting the
|
|
// Date instance.
|
|
if (defDateFormat == 0) {
|
|
defDateFormat = DateFormat::createInstance();
|
|
}
|
|
defDateFormat->format(obj.getDate(), buffer);
|
|
stream << buffer;
|
|
break;
|
|
case Formattable::kDouble :
|
|
// Output the double as is.
|
|
stream << obj.getDouble() << 'D';
|
|
break;
|
|
case Formattable::kLong :
|
|
// Output the double as is.
|
|
stream << obj.getLong() << 'L';
|
|
break;
|
|
case Formattable::kString:
|
|
// Output the double as is. Please see UnicodeString console
|
|
// I/O routine for more details.
|
|
stream << '"' << obj.getString(buffer) << '"';
|
|
break;
|
|
case Formattable::kArray:
|
|
int32_t i, count;
|
|
const Formattable* array;
|
|
array = obj.getArray(count);
|
|
stream << '[';
|
|
// Recursively calling the console I/O routine for each element in the array.
|
|
for (i=0; i<count; ++i) {
|
|
FormattableStreamer::streamOut(stream, array[i]);
|
|
stream << ( (i==(count-1)) ? "" : ", " );
|
|
}
|
|
stream << ']';
|
|
break;
|
|
default:
|
|
// Not a recognizable Formattable object.
|
|
stream << "INVALID_Formattable";
|
|
}
|
|
stream.flush();
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
//eof
|