[188] | 1 | /*
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| 2 | * The Apache Software License, Version 1.1
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| 3 | *
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| 4 | * Copyright (c) 2001 The Apache Software Foundation. All rights
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| 5 | * reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | *
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| 11 | * 1. Redistributions of source code must retain the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer.
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| 13 | *
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in
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| 16 | * the documentation and/or other materials provided with the
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| 17 | * distribution.
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| 18 | *
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| 19 | * 3. The end-user documentation included with the redistribution,
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| 20 | * if any, must include the following acknowledgment:
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| 21 | * "This product includes software developed by the
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| 22 | * Apache Software Foundation (http://www.apache.org/)."
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| 23 | * Alternately, this acknowledgment may appear in the software itself,
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| 24 | * if and wherever such third-party acknowledgments normally appear.
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| 25 | *
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| 26 | * 4. The names "Xerces" and "Apache Software Foundation" must
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| 27 | * not be used to endorse or promote products derived from this
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| 28 | * software without prior written permission. For written
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| 29 | * permission, please contact apache\@apache.org.
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| 30 | *
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| 31 | * 5. Products derived from this software may not be called "Apache",
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| 32 | * nor may "Apache" appear in their name, without prior written
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| 33 | * permission of the Apache Software Foundation.
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| 34 | *
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| 35 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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| 36 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 37 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 38 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 41 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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| 42 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 43 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 44 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 45 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 46 | * SUCH DAMAGE.
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| 47 | * ====================================================================
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| 48 | *
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| 49 | * This software consists of voluntary contributions made by many
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| 50 | * individuals on behalf of the Apache Software Foundation, and was
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| 51 | * originally based on software copyright (c) 2001, International
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| 52 | * Business Machines, Inc., http://www.ibm.com . For more information
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| 53 | * on the Apache Software Foundation, please see
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| 54 | * <http://www.apache.org/>.
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| 55 | */
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| 56 |
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| 57 | /*
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| 58 | * $Id: XMLAbstractDoubleFloat.hpp,v 1.20 2004/01/29 11:48:46 cargilld Exp $
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| 59 | * $Log: XMLAbstractDoubleFloat.hpp,v $
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| 60 | * Revision 1.20 2004/01/29 11:48:46 cargilld
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| 61 | * Code cleanup changes to get rid of various compiler diagnostic messages.
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| 62 | *
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| 63 | * Revision 1.19 2004/01/13 19:50:56 peiyongz
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| 64 | * remove parseContent()
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| 65 | *
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| 66 | * Revision 1.17 2003/12/17 00:18:35 cargilld
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| 67 | * Update to memory management so that the static memory manager (one used to call Initialize) is only for static data.
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| 68 | *
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| 69 | * Revision 1.16 2003/12/11 21:38:12 peiyongz
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| 70 | * support for Canonical Representation for Datatype
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| 71 | *
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| 72 | * Revision 1.15 2003/10/15 14:50:01 peiyongz
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| 73 | * Bugzilla#22821: locale-sensitive function used to validate 'double' type, patch
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| 74 | * from jsweeney@spss.com (Jeff Sweeney)
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| 75 | *
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| 76 | * Revision 1.14 2003/09/23 18:16:07 peiyongz
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| 77 | * Inplementation for Serialization/Deserialization
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| 78 | *
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| 79 | * Revision 1.13 2003/05/18 14:02:05 knoaman
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| 80 | * Memory manager implementation: pass per instance manager.
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| 81 | *
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| 82 | * Revision 1.12 2003/05/16 06:01:53 knoaman
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| 83 | * Partial implementation of the configurable memory manager.
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| 84 | *
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| 85 | * Revision 1.11 2003/05/15 19:07:46 knoaman
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| 86 | * Partial implementation of the configurable memory manager.
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| 87 | *
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| 88 | * Revision 1.10 2003/05/09 15:13:46 peiyongz
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| 89 | * Deprecated toString() in XMLNumber family
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| 90 | *
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| 91 | * Revision 1.9 2003/03/10 20:55:58 peiyongz
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| 92 | * Schema Errata E2-40 double/float
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| 93 | *
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| 94 | * Revision 1.8 2003/02/02 23:54:43 peiyongz
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| 95 | * getFormattedString() added to return original and converted value.
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| 96 | *
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| 97 | * Revision 1.7 2003/01/30 21:55:22 tng
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| 98 | * Performance: create getRawData which is similar to toString but return the internal data directly, user is not required to delete the returned memory.
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| 99 | *
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| 100 | * Revision 1.6 2002/12/11 00:20:02 peiyongz
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| 101 | * Doing businesss in value space. Converting out-of-bound value into special values.
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| 102 | *
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| 103 | * Revision 1.5 2002/11/04 15:22:05 tng
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| 104 | * C++ Namespace Support.
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| 105 | *
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| 106 | * Revision 1.4 2002/03/06 19:13:12 peiyongz
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| 107 | * Patch: more valid lexcial representation for positive/negative zero
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| 108 | *
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| 109 | * Revision 1.3 2002/03/01 18:47:37 peiyongz
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| 110 | * fix: more valid lexcial representation forms for "neural zero"
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| 111 | *
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| 112 | * Revision 1.2 2002/02/20 18:17:02 tng
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| 113 | * [Bug 5977] Warnings on generating apiDocs.
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| 114 | *
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| 115 | * Revision 1.1.1.1 2002/02/01 22:22:14 peiyongz
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| 116 | * sane_include
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| 117 | *
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| 118 | * Revision 1.4 2001/11/28 15:39:26 peiyongz
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| 119 | * return Type& for operator=
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| 120 | *
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| 121 | * Revision 1.3 2001/11/22 21:39:00 peiyongz
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| 122 | * Allow "0.0" to be a valid lexcial representation of ZERO.
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| 123 | *
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| 124 | * Revision 1.2 2001/11/22 20:23:00 peiyongz
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| 125 | * _declspec(dllimport) and inline warning C4273
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| 126 | *
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| 127 | * Revision 1.1 2001/11/19 21:33:42 peiyongz
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| 128 | * Reorganization: Double/Float
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| 129 | *
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| 130 | *
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| 131 | */
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| 132 |
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| 133 | #ifndef XML_ABSTRACT_DOUBLE_FLOAT_HPP
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| 134 | #define XML_ABSTRACT_DOUBLE_FLOAT_HPP
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| 135 |
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| 136 | #include <xercesc/util/XMLNumber.hpp>
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| 137 | #include <xercesc/util/PlatformUtils.hpp>
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| 138 |
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| 139 | XERCES_CPP_NAMESPACE_BEGIN
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| 140 |
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| 141 | /***
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| 142 | * 3.2.5.1 Lexical representation
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| 143 | *
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| 144 | * double values have a lexical representation consisting of a mantissa followed,
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| 145 | * optionally, by the character "E" or "e", followed by an exponent.
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| 146 | *
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| 147 | * The exponent ·must· be an integer.
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| 148 | * The mantissa must be a decimal number.
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| 149 | * The representations for exponent and mantissa must follow the lexical rules
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| 150 | * for integer and decimal.
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| 151 | *
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| 152 | * If the "E" or "e" and the following exponent are omitted,
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| 153 | * an exponent value of 0 is assumed.
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| 154 | ***/
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| 155 |
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| 156 | /***
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| 157 | * 3.2.4.1 Lexical representation
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| 158 | *
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| 159 | * float values have a lexical representation consisting of a mantissa followed,
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| 160 | * optionally, by the character "E" or "e", followed by an exponent.
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| 161 | *
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| 162 | * The exponent ·must· be an integer.
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| 163 | * The mantissa must be a decimal number.
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| 164 | * The representations for exponent and mantissa must follow the lexical rules
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| 165 | * for integer and decimal.
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| 166 | *
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| 167 | * If the "E" or "e" and the following exponent are omitted,
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| 168 | * an exponent value of 0 is assumed.
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| 169 | ***/
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| 170 |
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| 171 | class XMLUTIL_EXPORT XMLAbstractDoubleFloat : public XMLNumber
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| 172 | {
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| 173 | public:
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| 174 |
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| 175 | enum LiteralType
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| 176 | {
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| 177 | NegINF,
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| 178 | PosINF,
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| 179 | NaN,
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| 180 | SpecialTypeNum,
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| 181 | Normal
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| 182 | };
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| 183 |
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| 184 | virtual ~XMLAbstractDoubleFloat();
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| 185 |
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| 186 | static XMLCh* getCanonicalRepresentation
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| 187 | (
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| 188 | const XMLCh* const rawData
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| 189 | , MemoryManager* const memMgr = XMLPlatformUtils::fgMemoryManager
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| 190 | );
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| 191 |
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| 192 | /**
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| 193 | *
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| 194 | * Deprecated: please use getRawData
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| 195 | *
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| 196 | */
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| 197 | virtual XMLCh* toString() const;
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| 198 |
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| 199 | virtual XMLCh* getRawData() const;
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| 200 |
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| 201 | virtual const XMLCh* getFormattedString() const;
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| 202 |
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| 203 | virtual int getSign() const;
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| 204 |
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| 205 | MemoryManager* getMemoryManager() const;
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| 206 |
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| 207 | /***
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| 208 | *
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| 209 | * The decimal point delimiter for the schema double/float type is
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| 210 | * defined to be a period and is not locale-specific. So, it must
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| 211 | * be replaced with the local-specific delimiter before converting
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| 212 | * from string to double/float.
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| 213 | *
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| 214 | ***/
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| 215 | void normalizeDecimalPoint(char* const toNormal);
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| 216 |
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| 217 | /***
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| 218 | * Support for Serialization/De-serialization
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| 219 | ***/
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| 220 | DECL_XSERIALIZABLE(XMLAbstractDoubleFloat)
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| 221 |
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| 222 | protected:
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| 223 |
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| 224 | //
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| 225 | // To be used by derived class exclusively
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| 226 | //
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| 227 | XMLAbstractDoubleFloat(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
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| 228 |
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| 229 | void init(const XMLCh* const strValue);
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| 230 |
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| 231 | /**
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| 232 | * Compares this object to the specified object.
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| 233 | * The result is <code>true</code> if and only if the argument is not
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| 234 | * <code>null</code> and is an <code>XMLAbstractDoubleFloat</code> object that contains
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| 235 | * the same <code>int</code> value as this object.
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| 236 | *
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| 237 | * @param lValue the object to compare with.
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| 238 | * @param rValue the object to compare against.
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| 239 | * @return <code>true</code> if the objects are the same;
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| 240 | * <code>false</code> otherwise.
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| 241 | */
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| 242 |
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| 243 | static int compareValues(const XMLAbstractDoubleFloat* const lValue
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| 244 | , const XMLAbstractDoubleFloat* const rValue
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| 245 | , MemoryManager* const manager);
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| 246 |
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| 247 | //
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| 248 | // to be overwritten by derived class
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| 249 | //
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| 250 | virtual void checkBoundary(const XMLCh* const strValue) = 0;
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| 251 |
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| 252 | private:
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| 253 | //
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| 254 | // Unimplemented
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| 255 | //
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| 256 | // copy ctor
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| 257 | // assignment ctor
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| 258 | //
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| 259 | XMLAbstractDoubleFloat(const XMLAbstractDoubleFloat& toCopy);
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| 260 | XMLAbstractDoubleFloat& operator=(const XMLAbstractDoubleFloat& toAssign);
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| 261 |
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| 262 | void normalizeZero(XMLCh* const);
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| 263 |
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| 264 | inline bool isSpecialValue() const;
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| 265 |
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| 266 | static int compareSpecial(const XMLAbstractDoubleFloat* const specialValue
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| 267 | , MemoryManager* const manager);
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| 268 |
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| 269 | void formatString();
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| 270 |
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| 271 | protected:
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| 272 | double fValue;
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| 273 | LiteralType fType;
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| 274 | bool fDataConverted;
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| 275 |
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| 276 | private:
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| 277 | int fSign;
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| 278 | XMLCh* fRawData;
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| 279 |
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| 280 | //
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| 281 | // If the original string is not lexcially the same as the five
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| 282 | // special value notations, and the value is converted to
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| 283 | // special value due underlying platform restriction on data
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| 284 | // representation, then this string is constructed and
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| 285 | // takes the form "original_string (special_value_notation)",
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| 286 | // otherwise it is empty.
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| 287 | //
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| 288 | XMLCh* fFormattedString;
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| 289 | MemoryManager* fMemoryManager;
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| 290 | };
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| 291 |
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| 292 | inline bool XMLAbstractDoubleFloat::isSpecialValue() const
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| 293 | {
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| 294 | return (fType < SpecialTypeNum);
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| 295 | }
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| 296 |
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| 297 | inline MemoryManager* XMLAbstractDoubleFloat::getMemoryManager() const
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| 298 | {
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| 299 | return fMemoryManager;
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| 300 | }
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| 301 |
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| 302 | XERCES_CPP_NAMESPACE_END
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| 303 |
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| 304 | #endif
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