| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| /* |
| * $Id$ |
| */ |
| |
| #if !defined(XERCESC_INCLUDE_GUARD_XML_ABSTRACT_DOUBLE_FLOAT_HPP) |
| #define XERCESC_INCLUDE_GUARD_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 XMLUTIL_EXPORT 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* 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); |
| |
| /** |
| * Compares this object to the specified object. |
| * The result is <code>true</code> if and only if the argument is not |
| * <code>null</code> and is an <code>XMLAbstractDoubleFloat</code> object that contains |
| * the same <code>int</code> value as this object. |
| * |
| * @param lValue the object to compare with. |
| * @param rValue the object to compare against. |
| * @param manager The MemoryManager to use to allocate objects |
| * @return <code>true</code> if the objects are the same; |
| * <code>false</code> otherwise. |
| */ |
| |
| 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 |