API Docs for SAX and DOM   XMLAbstractDoubleFloat.hpp Go to the documentation of this file. /* * Copyright 2001,2004 The Apache Software Foundation. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * $Id: XMLAbstractDoubleFloat.hpp 191054 2005-06-17 02:56:35Z jberry $ */ #ifndef XML_ABSTRACT_DOUBLE_FLOAT_HPP #define XML_ABSTRACT_DOUBLE_FLOAT_HPP #include <xercesc/util/XMLNumber.hpp> #include <xercesc/util/PlatformUtils.hpp> XERCES_CPP_NAMESPACE_BEGIN /*** * 3.2.5.1 Lexical representation * * double values have a lexical representation consisting of a mantissa followed, * optionally, by the character "E" or "e", followed by an exponent. * * The exponent �must� be an integer. * The mantissa must be a decimal number. * The representations for exponent and mantissa must follow the lexical rules * for integer and decimal. * * If the "E" or "e" and the following exponent are omitted, * an exponent value of 0 is assumed. ***/ /*** * 3.2.4.1 Lexical representation * * float values have a lexical representation consisting of a mantissa followed, * optionally, by the character "E" or "e", followed by an exponent. * * The exponent �must� be an integer. * The mantissa must be a decimal number. * The representations for exponent and mantissa must follow the lexical rules * for integer and decimal. * * If the "E" or "e" and the following exponent are omitted, * an exponent value of 0 is assumed. ***/ class XMLAbstractDoubleFloat : public XMLNumber { public: enum LiteralType { NegINF, PosINF, NaN, SpecialTypeNum, Normal }; virtual ~XMLAbstractDoubleFloat(); static XMLCh* getCanonicalRepresentation ( const XMLCh* const rawData , MemoryManager* const memMgr = XMLPlatformUtils::fgMemoryManager ); virtual XMLCh* toString() const; virtual XMLCh* getRawData() const; virtual const XMLCh* getFormattedString() const; virtual int getSign() const; MemoryManager* getMemoryManager() const; inline bool isDataConverted() const; inline bool isDataOverflowed() const; inline double getValue() const; inline LiteralType getType() const; /*** * * The decimal point delimiter for the schema double/float type is * defined to be a period and is not locale-specific. So, it must * be replaced with the local-specific delimiter before converting * from string to double/float. * ***/ static void normalizeDecimalPoint(char* const toNormal); /*** * Support for Serialization/De-serialization ***/ DECL_XSERIALIZABLE(XMLAbstractDoubleFloat) protected: // // To be used by derived class exclusively // XMLAbstractDoubleFloat(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager); void init(const XMLCh* const strValue); static int compareValues(const XMLAbstractDoubleFloat* const lValue , const XMLAbstractDoubleFloat* const rValue , MemoryManager* const manager); // // to be overridden by derived class // virtual void checkBoundary(char* const strValue) = 0; void convert(char* const strValue); private: // // Unimplemented // // copy ctor // assignment ctor // XMLAbstractDoubleFloat(const XMLAbstractDoubleFloat& toCopy); XMLAbstractDoubleFloat& operator=(const XMLAbstractDoubleFloat& toAssign); void normalizeZero(XMLCh* const); inline bool isSpecialValue() const; static int compareSpecial(const XMLAbstractDoubleFloat* const specialValue , MemoryManager* const manager); void formatString(); protected: double fValue; LiteralType fType; bool fDataConverted; bool fDataOverflowed; private: int fSign; XMLCh* fRawData; // // If the original string is not lexcially the same as the five // special value notations, and the value is converted to // special value due underlying platform restriction on data // representation, then this string is constructed and // takes the form "original_string (special_value_notation)", // otherwise it is empty. // XMLCh* fFormattedString; MemoryManager* fMemoryManager; }; inline bool XMLAbstractDoubleFloat::isSpecialValue() const { return (fType < SpecialTypeNum); } inline MemoryManager* XMLAbstractDoubleFloat::getMemoryManager() const { return fMemoryManager; } inline bool XMLAbstractDoubleFloat::isDataConverted() const { return fDataConverted; } inline bool XMLAbstractDoubleFloat::isDataOverflowed() const { return fDataOverflowed; } inline double XMLAbstractDoubleFloat::getValue() const { return fValue; } inline XMLAbstractDoubleFloat::LiteralType XMLAbstractDoubleFloat::getType() const { return fType; } XERCES_CPP_NAMESPACE_END #endif

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