XSValue.hpp

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/*
 * 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_XSVALUE_HPP)
#define XERCESC_INCLUDE_GUARD_XSVALUE_HPP
 
#include <xercesc/util/PlatformUtils.hpp>
#include <xercesc/util/ValueHashTableOf.hpp>
 
XERCES_CPP_NAMESPACE_BEGIN
 
class RegularExpression;
 
class XMLPARSER_EXPORT XSValue : public XMemory
{
public:
 
    enum DataType {
              dt_string               = 0,
              dt_boolean              = 1,
              dt_decimal              = 2,
              dt_float                = 3,
              dt_double               = 4,
              dt_duration             = 5,
              dt_dateTime             = 6,
              dt_time                 = 7,
              dt_date                 = 8,
              dt_gYearMonth           = 9,
              dt_gYear                = 10,
              dt_gMonthDay            = 11,
              dt_gDay                 = 12,
              dt_gMonth               = 13,
              dt_hexBinary            = 14,
              dt_base64Binary         = 15,
              dt_anyURI               = 16,
              dt_QName                = 17,
              dt_NOTATION             = 18,
              dt_normalizedString     = 19,
              dt_token                = 20,
              dt_language             = 21,
              dt_NMTOKEN              = 22,
              dt_NMTOKENS             = 23,
              dt_Name                 = 24,
              dt_NCName               = 25,
              dt_ID                   = 26,
              dt_IDREF                = 27,
              dt_IDREFS               = 28,
              dt_ENTITY               = 29,
              dt_ENTITIES             = 30,
              dt_integer              = 31,
              dt_nonPositiveInteger   = 32,
              dt_negativeInteger      = 33,
              dt_long                 = 34,
              dt_int                  = 35,
              dt_short                = 36,
              dt_byte                 = 37,
              dt_nonNegativeInteger   = 38,
              dt_unsignedLong         = 39,
              dt_unsignedInt          = 40,
              dt_unsignedShort        = 41,
              dt_unsignedByte         = 42,
              dt_positiveInteger      = 43,
              dt_MAXCOUNT             = 44
    };
 
    enum XMLVersion {
            ver_10,
            ver_11
    };
 
    enum Status {
            st_Init,
            st_NoContent,
            st_NoCanRep,
            st_NoActVal,
            st_NotSupported,
            st_CantCreateRegEx,
            st_FOCA0002,        //invalid lexical value
            st_FOCA0001,        //input value too large/too small for decimal
            st_FOCA0003,        //input value too large for integer
            st_FODT0003,        //invalid timezone value
            st_UnknownType
    };
 
    enum DataGroup {
            dg_numerics,
            dg_datetimes,
            dg_strings
    };
 
    enum DoubleFloatType
    {
        DoubleFloatType_NegINF,
        DoubleFloatType_PosINF,
        DoubleFloatType_NaN,
        DoubleFloatType_Zero,
        DoubleFloatType_Normal
    };
 
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    ~XSValue();
 
    //---------------------------------
 
    static
    bool     validate
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       XMLVersion            version    = ver_10
              ,       MemoryManager*  const manager    = XMLPlatformUtils::fgMemoryManager
             );
 
    static
    XMLCh*   getCanonicalRepresentation
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       XMLVersion            version    = ver_10
              ,       bool                  toValidate = true
              ,       MemoryManager*  const manager    = XMLPlatformUtils::fgMemoryManager
             );
 
    static
    XSValue* getActualValue
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       XMLVersion            version    = ver_10
              ,       bool                  toValidate = true
              ,       MemoryManager*  const manager    = XMLPlatformUtils::fgMemoryManager
             );
 
    static
    DataType  getDataType  (const XMLCh* const dtString);
 
 
    //----------------------------------
    struct XSValue_Data {
 
        DataType f_datatype;
 
        union {
                         bool      f_bool;
                         char      f_char;
                unsigned char      f_uchar;
                         short     f_short;
                unsigned short     f_ushort;
                         int       f_int;
                unsigned int       f_uint;
                         long      f_long;
                unsigned long      f_ulong;
                         float     f_float;
                         double    f_double;
                         XMLCh*    f_strVal;
                         XMLByte*  f_byteVal;
 
                struct decimal {
                                double           f_dvalue;
                } f_decimal;
 
                struct datetime {
                                int       f_year;
                                int       f_month;
                                int       f_day;
                                int       f_hour;
                                int       f_min;
                                int       f_second;
                                double    f_milisec;
 
                } f_datetime;
 
                struct doubletype {
                                double          f_double;
                                DoubleFloatType f_doubleEnum;
                } f_doubleType;
 
                struct floattype {
                                float           f_float;
                                DoubleFloatType f_floatEnum;
                } f_floatType;
 
 
 
        } fValue;
 
    } fData;
 
private:
 
    typedef union
    {
                long  f_long;
       unsigned long  f_ulong;
    } t_value;
 
    XSValue(
             DataType        const dt
           , MemoryManager*  const manager = XMLPlatformUtils::fgMemoryManager
           );
 
 
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    XSValue(const XSValue&);
    XSValue & operator=(const XSValue &);
 
    //---------------------------------
 
    static const XSValue::DataGroup inGroup[];
    static const bool numericSign[];
 
 
    static
    bool     validateNumerics
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       MemoryManager*  const manager
             );
 
    static
    bool     validateDateTimes
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       MemoryManager*  const manager
             );
 
    static
    bool     validateStrings
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       XMLVersion            version
              ,       MemoryManager*  const manager
             );
 
    static
    XMLCh*   getCanRepNumerics
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       bool                  toValidate
              ,       MemoryManager*  const manager
             );
 
    static
    XMLCh*   getCanRepDateTimes
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       bool                  toValidate
              ,       MemoryManager*  const manager
             );
 
    static
    XMLCh*   getCanRepStrings
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       XMLVersion            version
              ,       bool                  toValidate
              ,       MemoryManager*  const manager
             );
 
    static
    XSValue*  getActValNumerics
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       bool                  toValidate
              ,       MemoryManager*  const manager
             );
 
    static
    XSValue*  getActValDateTimes
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       MemoryManager*  const manager
             );
 
    static
    XSValue*  getActValStrings
             (
                const XMLCh*          const content
              ,       DataType              datatype
              ,       Status&               status
              ,       XMLVersion            version
              ,       bool                  toValidate
              ,       MemoryManager*  const manager
             );
 
    static
    bool      getActualNumericValue
              (
                 const XMLCh*         const content
               ,       Status&               status
               ,       t_value&              retVal
               ,       MemoryManager* const  manager
               ,       DataType              datatype
               );
 
    static ValueHashTableOf<DataType>*    fDataTypeRegistry;
 
    // -----------------------------------------------------------------------
    //  static helper methods
    // -----------------------------------------------------------------------
    static void initializeRegistry();
    friend class XMLInitializer;
 
    // -----------------------------------------------------------------------
    //  data members
    // -----------------------------------------------------------------------
    bool                fMemAllocated;
    MemoryManager*      fMemoryManager;
 
};
 
XERCES_CPP_NAMESPACE_END
 
#endif