1 | /*
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2 | * Copyright 2001-2004 The Apache Software Foundation.
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | */
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16 |
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17 | /*
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18 | * $Log: SchemaValidator.hpp,v $
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19 | * Revision 1.27 2004/09/08 13:56:57 peiyongz
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20 | * Apache License Version 2.0
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21 | *
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22 | * Revision 1.26 2004/03/01 21:06:38 knoaman
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23 | * Fix for UPA checking
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24 | *
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25 | * Revision 1.25 2004/01/29 11:52:31 cargilld
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26 | * Code cleanup changes to get rid of various compiler diagnostic messages.
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27 | *
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28 | * Revision 1.24 2003/12/03 20:00:27 neilg
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29 | * PSVI fix: cannot allow validator to reset its element content buffer before exposing it to the application
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30 | *
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31 | * Revision 1.23 2003/11/28 21:18:32 knoaman
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32 | * Make use of canonical representation in PSVIElement
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33 | *
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34 | * Revision 1.22 2003/11/27 22:52:37 knoaman
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35 | * PSVIElement implementation
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36 | *
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37 | * Revision 1.21 2003/11/27 06:10:31 neilg
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38 | * PSVIAttribute implementation
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39 | *
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40 | * Revision 1.20 2003/11/24 05:13:20 neilg
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41 | * expose validator that actually validated attribute. Clean up union handling
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42 | *
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43 | * Revision 1.19 2003/10/05 02:09:37 neilg
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44 | * the validator now keeps track of the current complex and simple type (including if this is an xsi:type). This allows both the validator and the scanner to know what the current type is, without the need to modify the element declaration each time an xsi:type is seen
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45 | *
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46 | * Revision 1.18 2003/08/14 03:01:04 knoaman
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47 | * Code refactoring to improve performance of validation.
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48 | *
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49 | * Revision 1.17 2003/05/18 14:02:08 knoaman
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50 | * Memory manager implementation: pass per instance manager.
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51 | *
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52 | * Revision 1.16 2003/05/16 21:43:21 knoaman
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53 | * Memory manager implementation: Modify constructors to pass in the memory manager.
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54 | *
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55 | * Revision 1.15 2003/05/16 03:15:51 knoaman
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56 | * Partial implementation of the configurable memory manager.
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57 | *
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58 | * Revision 1.14 2003/05/15 18:57:27 knoaman
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59 | * Partial implementation of the configurable memory manager.
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60 | *
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61 | * Revision 1.13 2003/01/20 19:04:48 knoaman
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62 | * Fix for particle derivation checking.
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63 | *
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64 | * Revision 1.12 2003/01/13 20:16:51 knoaman
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65 | * [Bug 16024] SchemaSymbols.hpp conflicts C++ Builder 6 dir.h
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66 | *
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67 | * Revision 1.11 2003/01/09 22:34:54 tng
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68 | * [Bug 14955] error validating parser.
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69 | *
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70 | * Revision 1.10 2002/11/07 21:57:37 tng
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71 | * Fix the following Schema Test Failures:
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72 | * 1. Typo when comparing miscFlags with FIXED
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73 | * 2. If xsi:type is specified, need to validate using that xsitype validator even if the type was any
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74 | * 3. Need to check ID/IDREFs for element value
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75 | * 4. Need to duplicate attribute id for wildcard scenario.
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76 | *
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77 | * Revision 1.9 2002/11/04 14:49:42 tng
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78 | * C++ Namespace Support.
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79 | *
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80 | * Revision 1.8 2002/09/04 18:17:41 tng
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81 | * Do not set IDREF to used during prevalidation.
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82 | *
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83 | * Revision 1.7 2002/07/11 18:55:45 knoaman
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84 | * Add a flag to the preContentValidation method to indicate whether to validate
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85 | * default/fixed attributes or not.
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86 | *
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87 | * Revision 1.6 2002/06/17 18:09:29 tng
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88 | * DOM L3: support "datatype-normalization"
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89 | *
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90 | * Revision 1.5 2002/05/22 20:54:14 knoaman
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91 | * Prepare for DOM L3 :
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92 | * - Make use of the XMLEntityHandler/XMLErrorReporter interfaces, instead of using
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93 | * EntityHandler/ErrorHandler directly.
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94 | * - Add 'AbstractDOMParser' class to provide common functionality for XercesDOMParser
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95 | * and DOMBuilder.
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96 | *
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97 | * Revision 1.4 2002/04/19 13:33:23 knoaman
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98 | * Fix for bug 8236.
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99 | *
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100 | * Revision 1.3 2002/04/01 15:47:06 knoaman
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101 | * Move Element Consistency checking (ref to global declarations) to SchemaValidator.
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102 | *
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103 | * Revision 1.2 2002/03/25 20:25:32 knoaman
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104 | * Move particle derivation checking from TraverseSchema to SchemaValidator.
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105 | *
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106 | * Revision 1.1.1.1 2002/02/01 22:22:47 peiyongz
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107 | * sane_include
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108 | *
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109 | * Revision 1.8 2001/11/13 13:25:08 tng
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110 | * Deprecate function XMLValidator::checkRootElement.
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111 | *
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112 | * Revision 1.7 2001/06/05 16:51:21 knoaman
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113 | * Add 'const' to getGrammar - submitted by Peter A. Volchek.
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114 | *
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115 | * Revision 1.6 2001/05/11 15:17:48 tng
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116 | * Schema: Nillable fixes.
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117 | *
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118 | * Revision 1.5 2001/05/11 13:27:37 tng
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119 | * Copyright update.
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120 | *
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121 | * Revision 1.4 2001/05/03 20:34:45 tng
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122 | * Schema: SchemaValidator update
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123 | *
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124 | * Revision 1.3 2001/04/19 18:17:40 tng
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125 | * Schema: SchemaValidator update, and use QName in Content Model
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126 | *
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127 | * Revision 1.2 2001/03/30 16:35:20 tng
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128 | * Schema: Whitespace normalization.
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129 | *
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130 | * Revision 1.1 2001/03/21 21:56:33 tng
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131 | * Schema: Add Schema Grammar, Schema Validator, and split the DTDValidator into DTDValidator, DTDScanner, and DTDGrammar.
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132 | *
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133 | */
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134 |
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135 |
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136 |
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137 | #if !defined(SCHEMAVALIDATOR_HPP)
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138 | #define SCHEMAVALIDATOR_HPP
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139 |
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140 | #include <xercesc/framework/XMLValidator.hpp>
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141 | #include <xercesc/framework/XMLBuffer.hpp>
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142 | #include <xercesc/util/ValueStackOf.hpp>
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143 | #include <xercesc/validators/common/ContentSpecNode.hpp>
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144 | #include <xercesc/validators/schema/SchemaGrammar.hpp>
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145 | #include <xercesc/validators/schema/XSDErrorReporter.hpp>
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146 |
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147 | XERCES_CPP_NAMESPACE_BEGIN
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148 |
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149 | class GrammarResolver;
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150 | class DatatypeValidator;
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151 | class SchemaElementDecl;
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152 |
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153 | //
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154 | // This is a derivative of the abstract validator interface. This class
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155 | // implements a validator that supports standard XML Schema semantics.
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156 | // This class handles scanning the of the schema, and provides
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157 | // the standard validation services against the Schema info it found.
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158 | //
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159 | class VALIDATORS_EXPORT SchemaValidator : public XMLValidator
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160 | {
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161 | public:
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162 | // -----------------------------------------------------------------------
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163 | // Constructors and Destructor
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164 | // -----------------------------------------------------------------------
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165 | SchemaValidator
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166 | (
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167 | XMLErrorReporter* const errReporter = 0
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168 | , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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169 | );
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170 | virtual ~SchemaValidator();
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171 |
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172 | // -----------------------------------------------------------------------
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173 | // Implementation of the XMLValidator interface
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174 | // -----------------------------------------------------------------------
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175 | virtual int checkContent
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176 | (
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177 | XMLElementDecl* const elemDecl
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178 | , QName** const children
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179 | , const unsigned int childCount
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180 | );
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181 |
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182 | virtual void faultInAttr
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183 | (
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184 | XMLAttr& toFill
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185 | , const XMLAttDef& attDef
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186 | ) const;
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187 |
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188 | virtual void preContentValidation(bool reuseGrammar,
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189 | bool validateDefAttr = false);
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190 |
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191 | virtual void postParseValidation();
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192 |
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193 | virtual void reset();
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194 |
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195 | virtual bool requiresNamespaces() const;
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196 |
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197 | virtual void validateAttrValue
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198 | (
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199 | const XMLAttDef* attDef
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200 | , const XMLCh* const attrValue
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201 | , bool preValidation = false
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202 | , const XMLElementDecl* elemDecl = 0
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203 | );
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204 |
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205 | virtual void validateElement
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206 | (
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207 | const XMLElementDecl* elemDef
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208 | );
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209 |
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210 | virtual Grammar* getGrammar() const;
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211 | virtual void setGrammar(Grammar* aGrammar);
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212 |
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213 | // -----------------------------------------------------------------------
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214 | // Virtual DTD handler interface.
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215 | // -----------------------------------------------------------------------
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216 | virtual bool handlesDTD() const;
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217 |
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218 | // -----------------------------------------------------------------------
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219 | // Virtual Schema handler interface. handlesSchema() always return false.
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220 | // -----------------------------------------------------------------------
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221 | virtual bool handlesSchema() const;
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222 |
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223 | // -----------------------------------------------------------------------
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224 | // Schema Validator methods
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225 | // -----------------------------------------------------------------------
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226 | void normalizeWhiteSpace(DatatypeValidator* dV, const XMLCh* const value, XMLBuffer& toFill);
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227 |
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228 | // -----------------------------------------------------------------------
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229 | // Setter methods
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230 | // -----------------------------------------------------------------------
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231 | void setGrammarResolver(GrammarResolver* grammarResolver);
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232 |
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233 | void setXsiType(const XMLCh* const prefix
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234 | , const XMLCh* const localPart
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235 | , const unsigned int uriId);
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236 |
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237 | void setNillable(bool isNil);
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238 | void setErrorReporter(XMLErrorReporter* const errorReporter);
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239 | void setExitOnFirstFatal(const bool newValue);
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240 | void setDatatypeBuffer(const XMLCh* const value);
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241 | void clearDatatypeBuffer();
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242 |
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243 | // -----------------------------------------------------------------------
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244 | // Getter methods
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245 | // -----------------------------------------------------------------------
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246 | ComplexTypeInfo* getCurrentTypeInfo() const;
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247 | DatatypeValidator *getCurrentDatatypeValidator() const;
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248 | DatatypeValidator *getMostRecentAttrValidator() const;
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249 | bool getErrorOccurred() const;
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250 | bool getIsElemSpecified() const;
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251 | const XMLCh* getNormalizedValue() const;
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252 |
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253 | private:
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254 | // -----------------------------------------------------------------------
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255 | // Unimplemented constructors and operators
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256 | // -----------------------------------------------------------------------
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257 | SchemaValidator(const SchemaValidator&);
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258 | SchemaValidator& operator=(const SchemaValidator&);
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259 |
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260 | // -----------------------------------------------------------------------
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261 | // Element Consitency Checking methods
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262 | // -----------------------------------------------------------------------
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263 | void checkRefElementConsistency(SchemaGrammar* const currentGrammar,
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264 | const ComplexTypeInfo* const curTypeInfo,
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265 | const XercesGroupInfo* const curGroup = 0);
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266 |
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267 | // -----------------------------------------------------------------------
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268 | // Particle Derivation Checking methods
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269 | // -----------------------------------------------------------------------
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270 | void checkParticleDerivation(SchemaGrammar* const currentGrammar,
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271 | const ComplexTypeInfo* const typeInfo);
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272 | void checkParticleDerivationOk(SchemaGrammar* const currentGrammar,
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273 | ContentSpecNode* const curNode,
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274 | const int derivedScope,
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275 | ContentSpecNode* const baseNode,
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276 | const int baseScope,
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277 | const ComplexTypeInfo* const baseInfo = 0,
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278 | const bool toCheckOccurrence = true);
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279 | ContentSpecNode* checkForPointlessOccurrences(ContentSpecNode* const specNode,
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280 | const ContentSpecNode::NodeTypes nodeType,
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281 | ValueVectorOf<ContentSpecNode*>* const nodes);
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282 | void gatherChildren(const ContentSpecNode::NodeTypes parentNodeType,
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283 | ContentSpecNode* const specNode,
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284 | ValueVectorOf<ContentSpecNode*>* const nodes);
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285 | bool isOccurrenceRangeOK(const int min1, const int max1, const int min2, const int max2);
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286 | void checkNSCompat(const ContentSpecNode* const derivedSpecNode,
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287 | const ContentSpecNode* const baseSpecNode,
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288 | const bool toCheckOccurence);
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289 | bool wildcardEltAllowsNamespace(const ContentSpecNode* const baseSpecNode,
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290 | const unsigned int derivedURI);
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291 | void checkNameAndTypeOK(SchemaGrammar* const currentGrammar,
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292 | const ContentSpecNode* const derivedSpecNode,
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293 | const int derivedScope,
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294 | const ContentSpecNode* const baseSpecNode,
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295 | const int baseScope,
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296 | const ComplexTypeInfo* const baseInfo = 0);
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297 | SchemaElementDecl* findElement(const int scope,
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298 | const unsigned int uriIndex,
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299 | const XMLCh* const name,
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300 | SchemaGrammar* const grammar,
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301 | const ComplexTypeInfo* const typeInfo = 0);
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302 | void checkICRestriction(const SchemaElementDecl* const derivedElemDecl,
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303 | const SchemaElementDecl* const baseElemDecl,
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304 | const XMLCh* const derivedElemName,
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305 | const XMLCh* const baseElemName);
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306 | void checkTypesOK(const SchemaElementDecl* const derivedElemDecl,
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307 | const SchemaElementDecl* const baseElemDecl,
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308 | const XMLCh* const derivedElemName);
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309 | void checkRecurseAsIfGroup(SchemaGrammar* const currentGrammar,
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310 | ContentSpecNode* const derivedSpecNode,
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311 | const int derivedScope,
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312 | const ContentSpecNode* const baseSpecNode,
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313 | const int baseScope,
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314 | ValueVectorOf<ContentSpecNode*>* const nodes,
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315 | const ComplexTypeInfo* const baseInfo);
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316 | void checkRecurse(SchemaGrammar* const currentGrammar,
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317 | const ContentSpecNode* const derivedSpecNode,
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318 | const int derivedScope,
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319 | ValueVectorOf<ContentSpecNode*>* const derivedNodes,
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320 | const ContentSpecNode* const baseSpecNode,
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321 | const int baseScope,
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322 | ValueVectorOf<ContentSpecNode*>* const baseNodes,
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323 | const ComplexTypeInfo* const baseInfo,
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324 | const bool toLax = false);
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325 | void checkNSSubset(const ContentSpecNode* const derivedSpecNode,
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326 | const ContentSpecNode* const baseSpecNode);
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327 | bool isWildCardEltSubset(const ContentSpecNode* const derivedSpecNode,
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328 | const ContentSpecNode* const baseSpecNode);
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329 | void checkNSRecurseCheckCardinality(SchemaGrammar* const currentGrammar,
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330 | const ContentSpecNode* const derivedSpecNode,
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331 | ValueVectorOf<ContentSpecNode*>* const derivedNodes,
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332 | const int derivedScope,
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333 | ContentSpecNode* const baseSpecNode,
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334 | const bool toCheckOccurence);
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335 | void checkRecurseUnordered(SchemaGrammar* const currentGrammar,
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336 | const ContentSpecNode* const derivedSpecNode,
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337 | ValueVectorOf<ContentSpecNode*>* const derivedNodes,
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338 | const int derivedScope,
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339 | ContentSpecNode* const baseSpecNode,
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340 | ValueVectorOf<ContentSpecNode*>* const baseNodes,
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341 | const int baseScope,
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342 | const ComplexTypeInfo* const baseInfo);
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343 | void checkMapAndSum(SchemaGrammar* const currentGrammar,
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344 | const ContentSpecNode* const derivedSpecNode,
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345 | ValueVectorOf<ContentSpecNode*>* const derivedNodes,
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346 | const int derivedScope,
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347 | ContentSpecNode* const baseSpecNode,
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348 | ValueVectorOf<ContentSpecNode*>* const baseNodes,
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349 | const int baseScope,
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350 | const ComplexTypeInfo* const baseInfo);
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351 | ContentSpecNode* getNonUnaryGroup(ContentSpecNode* const pNode);
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352 |
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353 | // -----------------------------------------------------------------------
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354 | // Private data members
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355 | //
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356 | // -----------------------------------------------------------------------
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357 | // The following comes from or set by the Scanner
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358 | // fSchemaGrammar
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359 | // The current schema grammar used by the validator
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360 | //
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361 | // fGrammarResolver
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362 | // All the schema grammar stored
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363 | //
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364 | // fXsiType
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365 | // Store the Schema Type Attribute Value if schema type is specified
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366 | //
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367 | // fNil
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368 | // Indicates if Nillable has been set
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369 | // -----------------------------------------------------------------------
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370 | // The following used internally in the validator
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371 | //
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372 | // fCurrentDatatypeValidator
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373 | // The validator used for validating the content of elements
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374 | // with simple types
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375 | //
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376 | // fDatatypeBuffer
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377 | // Buffer for simple type element string content
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378 | //
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379 | // fTrailing
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380 | // Previous chunk had a trailing space
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381 | //
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382 | // fSeenId
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383 | // Indicate if an attribute of ID type has been seen already, reset per element.
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384 | //
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385 | // fSchemaErrorReporter
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386 | // Report schema process errors
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387 | //
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388 | // fTypeStack
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389 | // Stack of complex type declarations.
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390 | //
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391 | // fMostRecentAttrValidator
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392 | // DatatypeValidator that validated attribute most recently processed
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393 | //
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394 | // fErrorOccurred
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395 | // whether an error occurred in the most recent operation
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396 | // -----------------------------------------------------------------------
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397 | MemoryManager* fMemoryManager;
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398 | SchemaGrammar* fSchemaGrammar;
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399 | GrammarResolver* fGrammarResolver;
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400 | QName* fXsiType;
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401 | bool fNil;
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402 | DatatypeValidator* fCurrentDatatypeValidator;
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403 | XMLBuffer* fNotationBuf;
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404 | XMLBuffer fDatatypeBuffer;
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405 | bool fTrailing;
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406 | bool fSeenId;
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407 | XSDErrorReporter fSchemaErrorReporter;
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408 | ValueStackOf<ComplexTypeInfo*>* fTypeStack;
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409 | DatatypeValidator * fMostRecentAttrValidator;
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410 | bool fErrorOccurred;
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411 | bool fElemIsSpecified;
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412 | };
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413 |
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414 |
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415 | // ---------------------------------------------------------------------------
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416 | // SchemaValidator: Setter methods
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417 | // ---------------------------------------------------------------------------
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418 | inline void SchemaValidator::setGrammarResolver(GrammarResolver* grammarResolver) {
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419 | fGrammarResolver = grammarResolver;
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420 | }
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421 |
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422 | inline void SchemaValidator::setXsiType(const XMLCh* const prefix
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423 | , const XMLCh* const localPart
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424 | , const unsigned int uriId)
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425 | {
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426 | delete fXsiType;
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427 | fXsiType = new (fMemoryManager) QName(prefix, localPart, uriId, fMemoryManager);
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428 | }
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429 |
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430 | inline void SchemaValidator::setNillable(bool isNil) {
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431 | fNil = isNil;
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432 | }
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433 |
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434 | inline void SchemaValidator::setExitOnFirstFatal(const bool newValue) {
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435 |
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436 | fSchemaErrorReporter.setExitOnFirstFatal(newValue);
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437 | }
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438 |
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439 | inline void SchemaValidator::setDatatypeBuffer(const XMLCh* const value)
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440 | {
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441 | fDatatypeBuffer.append(value);
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442 | }
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443 |
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444 | inline void SchemaValidator::clearDatatypeBuffer()
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445 | {
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446 | fDatatypeBuffer.reset();
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447 | }
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448 |
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449 | // ---------------------------------------------------------------------------
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450 | // SchemaValidator: Getter methods
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451 | // ---------------------------------------------------------------------------
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452 | inline ComplexTypeInfo* SchemaValidator::getCurrentTypeInfo() const {
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453 | if (fTypeStack->empty())
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454 | return 0;
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455 | return fTypeStack->peek();
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456 | }
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457 |
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458 | inline DatatypeValidator * SchemaValidator::getCurrentDatatypeValidator() const
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459 | {
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460 | return fCurrentDatatypeValidator;
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461 | }
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462 | inline DatatypeValidator *SchemaValidator::getMostRecentAttrValidator() const
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463 | {
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464 | return fMostRecentAttrValidator;
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465 | }
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466 |
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467 | // ---------------------------------------------------------------------------
|
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468 | // Virtual interface
|
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469 | // ---------------------------------------------------------------------------
|
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470 | inline Grammar* SchemaValidator::getGrammar() const {
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471 | return fSchemaGrammar;
|
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472 | }
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473 |
|
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474 | inline void SchemaValidator::setGrammar(Grammar* aGrammar) {
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475 | fSchemaGrammar = (SchemaGrammar*) aGrammar;
|
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476 | }
|
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477 |
|
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478 | inline void SchemaValidator::setErrorReporter(XMLErrorReporter* const errorReporter) {
|
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479 |
|
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480 | XMLValidator::setErrorReporter(errorReporter);
|
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481 | fSchemaErrorReporter.setErrorReporter(errorReporter);
|
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482 | }
|
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483 |
|
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484 | // ---------------------------------------------------------------------------
|
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485 | // SchemaValidator: DTD handler interface
|
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486 | // ---------------------------------------------------------------------------
|
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487 | inline bool SchemaValidator::handlesDTD() const
|
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488 | {
|
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489 | // No DTD scanning
|
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490 | return false;
|
---|
491 | }
|
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492 |
|
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493 | // ---------------------------------------------------------------------------
|
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494 | // SchemaValidator: Schema handler interface
|
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495 | // ---------------------------------------------------------------------------
|
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496 | inline bool SchemaValidator::handlesSchema() const
|
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497 | {
|
---|
498 | return true;
|
---|
499 | }
|
---|
500 |
|
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501 | // ---------------------------------------------------------------------------
|
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502 | // SchemaValidator: Particle derivation checking
|
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503 | // ---------------------------------------------------------------------------
|
---|
504 | inline bool
|
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505 | SchemaValidator::isOccurrenceRangeOK(const int min1, const int max1,
|
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506 | const int min2, const int max2) {
|
---|
507 |
|
---|
508 | if (min1 >= min2 &&
|
---|
509 | (max2 == SchemaSymbols::XSD_UNBOUNDED ||
|
---|
510 | (max1 != SchemaSymbols::XSD_UNBOUNDED && max1 <= max2))) {
|
---|
511 | return true;
|
---|
512 | }
|
---|
513 | return false;
|
---|
514 | }
|
---|
515 |
|
---|
516 | inline bool SchemaValidator::getErrorOccurred() const
|
---|
517 | {
|
---|
518 | return fErrorOccurred;
|
---|
519 | }
|
---|
520 |
|
---|
521 | inline bool SchemaValidator::getIsElemSpecified() const
|
---|
522 | {
|
---|
523 | return fElemIsSpecified;
|
---|
524 | }
|
---|
525 |
|
---|
526 | inline const XMLCh* SchemaValidator::getNormalizedValue() const
|
---|
527 | {
|
---|
528 | return fDatatypeBuffer.getRawBuffer();
|
---|
529 | }
|
---|
530 |
|
---|
531 | XERCES_CPP_NAMESPACE_END
|
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532 |
|
---|
533 | #endif
|
---|