1 | // ---------------------------------------------------------------------------
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2 | // Includes for all the program files to see
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3 | // ---------------------------------------------------------------------------
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4 | #include <string.h>
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5 | #include <stdlib.h>
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6 | #include <iostream>
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7 | using namespace std;
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8 | #include <xercesc/util/PlatformUtils.hpp>
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9 |
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10 | // ---------------------------------------------------------------------------
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11 | // Includes
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12 | // ---------------------------------------------------------------------------
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13 | #include <xercesc/framework/StdInInputSource.hpp>
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14 | #include <xercesc/parsers/SAXParser.hpp>
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15 | #include <xercesc/util/OutOfMemoryException.hpp>
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16 |
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17 | // ---------------------------------------------------------------------------
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18 | // Includes
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19 | // ---------------------------------------------------------------------------
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20 | #include <xercesc/sax/AttributeList.hpp>
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21 | #include <xercesc/sax/SAXParseException.hpp>
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22 | #include <xercesc/sax/SAXException.hpp>
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23 |
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24 | #include "X3dParser.h"
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25 |
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26 | #include "X3dParserXerces.h"
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27 | #include "Mesh.h"
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28 | #include "SceneGraph.h"
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29 |
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30 | // ---------------------------------------------------------------------------
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31 | // Local data
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32 | //
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33 | // doNamespaces
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34 | // Indicates whether namespace processing should be enabled or not.
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35 | // The default is no, but -n overrides that.
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36 | //
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37 | // doSchema
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38 | // Indicates whether schema processing should be enabled or not.
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39 | // The default is no, but -s overrides that.
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40 | //
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41 | // schemaFullChecking
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42 | // Indicates whether full schema constraint checking should be enabled or not.
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43 | // The default is no, but -s overrides that.
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44 | //
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45 | // valScheme
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46 | // Indicates what validation scheme to use. It defaults to 'auto', but
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47 | // can be set via the -v= command.
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48 | // ---------------------------------------------------------------------------
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49 | static bool doNamespaces = false;
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50 | static bool doSchema = false;
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51 | static bool schemaFullChecking = false;
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52 | static SAXParser::ValSchemes valScheme = SAXParser::Val_Auto;
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53 |
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54 |
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55 |
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56 |
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57 |
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58 | // ---------------------------------------------------------------------------
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59 | // StdInParseHandlers: Constructors and Destructor
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60 | // ---------------------------------------------------------------------------
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61 | X3dParseHandlers::X3dParseHandlers(SceneGraphNode *root) :
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62 | mElementCount(0)
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63 | , mAttrCount(0)
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64 | , mCharacterCount(0)
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65 | , mSpaceCount(0)
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66 | {
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67 | mCurrentNode = root;
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68 | }
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69 |
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70 | X3dParseHandlers::~X3dParseHandlers()
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71 | {
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72 | }
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73 |
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74 |
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75 | // ---------------------------------------------------------------------------
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76 | // StdInParseHandlers: Implementation of the SAX DocumentHandler interface
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77 | // ---------------------------------------------------------------------------
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78 | void X3dParseHandlers::endElement(const XMLCh* const name)
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79 | {
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80 | StrX lname(name);
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81 | string element(lname.LocalForm());
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82 | if (element == "Shape")
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83 | EndShape();
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84 | }
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85 |
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86 | void
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87 | X3dParseHandlers::EndShape()
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88 | {
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89 | if (mCurrentMesh->mFaces.size()) {
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90 | mCurrentMesh->Preprocess();
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91 | // make an instance of this mesh
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92 | MeshInstance *mi = new MeshInstance(mCurrentMesh);
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93 | mCurrentNode->mGeometry.push_back(mi);
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94 | } else {
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95 | cout<<"X";
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96 | delete mCurrentMesh;
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97 | }
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98 | mCurrentMesh = NULL;
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99 | }
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100 |
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101 | void
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102 | X3dParseHandlers::StartIndexedFaceSet(
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103 | AttributeList& attributes)
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104 | {
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105 | int len = attributes.getLength();
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106 | int i;
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107 | VertexIndexContainer vertices;
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108 |
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109 | for (i=0; i < len; i++) {
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110 | string attrName(StrX(attributes.getName(i)).LocalForm());
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111 | if (attrName == "coordIndex") {
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112 | StrX attrValue(attributes.getValue(i));
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113 | // handle coordIndex
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114 | vertices.clear();
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115 | const char *ptr = attrValue.LocalForm();
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116 | char *endptr;
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117 | while(1) {
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118 | int index = strtol(ptr, &endptr, 10);
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119 | if (ptr == endptr || index == -1) {
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120 | if (vertices.size() > 2) {
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121 | Face *face = new Face(vertices);
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122 | mCurrentMesh->mFaces.push_back(face);
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123 | }
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124 | vertices.clear();
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125 | if (ptr == endptr)
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126 | break;
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127 | } else {
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128 | vertices.push_back(index);
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129 | }
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130 | ptr = endptr;
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131 | }
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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 | void
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137 | X3dParseHandlers::StartMaterial(
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138 | AttributeList& attributes)
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139 | {
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140 | int len = attributes.getLength();
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141 | int i;
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142 | if (!mCurrentMesh->mMaterial)
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143 | mCurrentMesh->mMaterial = new Material;
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144 | for (i=0; i < len; i++) {
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145 | string attrName(StrX(attributes.getName(i)).LocalForm());
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146 | StrX attrValue(attributes.getValue(i));
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147 | const char *ptr = attrValue.LocalForm();
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148 | if (attrName == "diffuseColor") {
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149 | float r, g, b;
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150 | if (sscanf(ptr, "%f %f %f", &r, &g, &b) == 3)
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151 | mCurrentMesh->mMaterial->mDiffuseColor = RgbColor(r, g, b);
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152 | }
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153 | }
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154 | }
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155 |
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156 | void
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157 | X3dParseHandlers::StartCoordinate(
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158 | AttributeList& attributes)
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159 | {
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160 | int len = attributes.getLength();
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161 | int i;
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162 | VertexContainer vertices;
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163 | for (i=0; i < len; i++) {
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164 | string attrName(StrX(attributes.getName(i)).LocalForm());
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165 | if (attrName == "point") {
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166 | StrX attrValue(attributes.getValue(i));
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167 | const char *ptr = attrValue.LocalForm();
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168 | char *endptr;
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169 | while(1) {
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170 | float x = strtod(ptr, &endptr);
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171 | if (ptr == endptr)
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172 | break;
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173 | ptr = endptr;
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174 | float y = strtod(ptr, &endptr);
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175 | if (ptr == endptr)
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176 | break;
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177 | ptr = endptr;
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178 | float z = strtod(ptr, &endptr);
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179 | if (ptr == endptr)
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180 | break;
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181 | ptr = endptr;
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182 | if (*ptr == ',')
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183 | ptr++;
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184 | Vector3 v(x, y, z);
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185 | vertices.push_back(v);
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186 | }
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187 | mCurrentMesh->mVertices = vertices;
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188 | }
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189 | }
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190 | }
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191 |
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192 |
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193 | void
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194 | X3dParseHandlers::startElement(const XMLCh* const name,
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195 | AttributeList& attributes)
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196 | {
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197 | StrX lname(name);
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198 | string element(lname.LocalForm());
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199 |
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200 | if (element == "IndexedFaceSet") {
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201 | // create a new mesh node in the scene graph
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202 | StartIndexedFaceSet(attributes);
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203 | }
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204 |
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205 | if (element == "Shape") {
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206 | cout<<"+";
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207 | mCurrentMesh = new Mesh;
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208 | }
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209 |
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210 | if (element == "Coordinate") {
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211 | if (mCurrentMesh)
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212 | StartCoordinate(attributes);
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213 | }
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214 |
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215 | if (element == "Material") {
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216 | StartMaterial(attributes);
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217 | }
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218 |
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219 | mElementCount++;
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220 | mAttrCount += attributes.getLength();
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221 | }
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222 |
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223 | void
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224 | X3dParseHandlers::characters(const XMLCh* const chars,
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225 | const unsigned int length)
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226 | {
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227 | mCharacterCount += length;
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228 | }
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229 |
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230 | void
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231 | X3dParseHandlers::ignorableWhitespace(const XMLCh* const chars,
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232 | const unsigned int length)
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233 | {
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234 | mSpaceCount += length;
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235 | }
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236 |
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237 | void
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238 | X3dParseHandlers::resetDocument()
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239 | {
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240 | mAttrCount = 0;
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241 | mCharacterCount = 0;
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242 | mElementCount = 0;
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243 | mSpaceCount = 0;
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244 | }
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245 |
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246 |
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247 |
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248 | // ---------------------------------------------------------------------------
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249 | // StdInParseHandlers: Overrides of the SAX ErrorHandler interface
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250 | // ---------------------------------------------------------------------------
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251 | void
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252 | X3dParseHandlers::error(const SAXParseException& e)
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253 | {
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254 | XERCES_STD_QUALIFIER cerr << "\nError at (file " << StrX(e.getSystemId())
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255 | << ", line " << e.getLineNumber()
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256 | << ", char " << e.getColumnNumber()
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257 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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258 | }
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259 |
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260 | void
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261 | X3dParseHandlers::fatalError(const SAXParseException& e)
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262 | {
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263 | XERCES_STD_QUALIFIER cerr << "\nFatal Error at (file " << StrX(e.getSystemId())
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264 | << ", line " << e.getLineNumber()
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265 | << ", char " << e.getColumnNumber()
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266 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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267 | }
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268 |
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269 | void
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270 | X3dParseHandlers::warning(const SAXParseException& e)
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271 | {
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272 | XERCES_STD_QUALIFIER cerr << "\nWarning at (file " << StrX(e.getSystemId())
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273 | << ", line " << e.getLineNumber()
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274 | << ", char " << e.getColumnNumber()
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275 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
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276 | }
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277 |
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278 |
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279 | bool
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280 | X3dParser::ParseFile(const string filename,
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281 | SceneGraphNode **root)
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282 | {
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283 | // Initialize the XML4C system
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284 | try {
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285 | XMLPlatformUtils::Initialize();
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286 | }
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287 |
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288 | catch (const XMLException& toCatch)
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289 | {
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290 | XERCES_STD_QUALIFIER cerr << "Error during initialization! Message:\n"
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291 | << StrX(toCatch.getMessage()) << XERCES_STD_QUALIFIER endl;
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292 | return false;
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293 | }
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294 |
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295 |
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296 | //
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297 | // Create a SAX parser object. Then, according to what we were told on
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298 | // the command line, set the options.
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299 | //
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300 | SAXParser* parser = new SAXParser;
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301 | parser->setValidationScheme(valScheme);
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302 | parser->setDoNamespaces(doNamespaces);
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303 | parser->setDoSchema(doSchema);
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304 | parser->setValidationSchemaFullChecking(schemaFullChecking);
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305 |
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306 |
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307 | //
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308 | // Create our SAX handler object and install it on the parser, as the
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309 | // document and error handler. We are responsible for cleaning them
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310 | // up, but since its just stack based here, there's nothing special
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311 | // to do.
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312 | //
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313 | *root = new SceneGraphNode;
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314 | X3dParseHandlers handler(*root);
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315 | parser->setDocumentHandler(&handler);
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316 | parser->setErrorHandler(&handler);
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317 |
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318 | unsigned long duration;
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319 | int errorCount = 0;
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320 | // create a faux scope so that 'src' destructor is called before
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321 | // XMLPlatformUtils::Terminate
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322 | {
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323 | //
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324 | // Kick off the parse and catch any exceptions. Create a standard
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325 | // input input source and tell the parser to parse from that.
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326 | //
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327 | // StdInInputSource src;
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328 | try
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329 | {
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330 | const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
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331 | parser->parse(filename.c_str());
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332 | const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
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333 | duration = endMillis - startMillis;
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334 | errorCount = parser->getErrorCount();
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335 | }
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336 | catch (const OutOfMemoryException&)
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337 | {
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338 | XERCES_STD_QUALIFIER cerr << "OutOfMemoryException" << XERCES_STD_QUALIFIER endl;
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339 | errorCount = 2;
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340 | return false;
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341 | }
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342 | catch (const XMLException& e)
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343 | {
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344 | XERCES_STD_QUALIFIER cerr << "\nError during parsing: \n"
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345 | << StrX(e.getMessage())
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346 | << "\n" << XERCES_STD_QUALIFIER endl;
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347 | errorCount = 1;
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348 | return false;
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349 | }
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350 |
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351 |
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352 | // Print out the stats that we collected and time taken
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353 | if (!errorCount) {
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354 | XERCES_STD_QUALIFIER cout << filename << ": " << duration << " ms ("
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355 | << handler.GetElementCount() << " elems, "
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356 | << handler.GetAttrCount() << " attrs, "
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357 | << handler.GetSpaceCount() << " spaces, "
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358 | << handler.GetCharacterCount() << " chars)" << XERCES_STD_QUALIFIER endl;
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359 | }
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360 | }
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361 |
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362 | //
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363 | // Delete the parser itself. Must be done prior to calling Terminate, below.
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364 | //
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365 | delete parser;
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366 |
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367 | XMLPlatformUtils::Terminate();
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368 |
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369 | if (errorCount > 0)
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370 | return false;
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371 | else
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372 | return true;
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373 | }
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374 |
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375 |
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376 |
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377 | /***********************************************************
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378 | * class X3dViewCellsParser implemenation *
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379 | ***********************************************************/
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380 |
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381 |
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382 | // ---------------------------------------------------------------------------
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383 | // StdInParseHandlers: Constructors and Destructor
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384 | // ---------------------------------------------------------------------------
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385 | X3dViewCellsParser::X3dViewCellsParser(ViewCellContainer *viewCells) :
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386 | mElementCount(0)
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387 | , mAttrCount(0)
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388 | , mCharacterCount(0)
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389 | , mSpaceCount(0)
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390 | , mViewCells(viewCells)
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391 | {
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392 | }
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393 |
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394 | X3dViewCellsParser::~X3dViewCellsParser()
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395 | {
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396 | }
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397 |
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398 |
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399 | // ---------------------------------------------------------------------------
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400 | // StdInParseHandlers: Implementation of the SAX DocumentHandler interface
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401 | // ---------------------------------------------------------------------------
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402 | void X3dViewCellsParser::endElement(const XMLCh* const name)
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403 | {
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404 | StrX lname(name);
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405 | string element(lname.LocalForm());
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406 | if (element == "Shape")
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407 | EndShape();
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408 | }
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409 |
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410 | void
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411 | X3dViewCellsParser::EndShape()
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412 | {
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413 | }
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414 |
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415 | void
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416 | X3dViewCellsParser::StartIndexedFaceSet(
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417 | AttributeList& attributes)
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418 | {
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419 | int len = attributes.getLength();
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420 | int i;
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421 | VertexIndexContainer vertices;
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422 |
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423 | for (i=0; i < len; i++)
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424 | {
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425 | string attrName(StrX(attributes.getName(i)).LocalForm());
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426 |
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427 | if (attrName == "coordIndex")
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428 | {
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429 | StrX attrValue(attributes.getValue(i));
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430 |
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431 | // handle coordIndex
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432 | vertices.clear();
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433 | const char *ptr = attrValue.LocalForm();
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434 | char *endptr;
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435 |
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436 | while(1)
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437 | {
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438 | int index = strtol(ptr, &endptr, 10);
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439 |
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440 | if (ptr == endptr || index == -1)
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441 | {
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442 | if (vertices.size() > 2)
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443 | {
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444 | // the base of all view cells is a triangle.
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445 | Face *face = new Face(vertices);
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446 |
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447 | mViewCells->push_back(ViewCell::Convert2ViewCell(face));
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448 | }
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449 | vertices.clear();
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450 |
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451 | if (ptr == endptr)
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452 | break;
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453 | }
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454 | else
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455 | {
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456 | vertices.push_back(index);
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457 | }
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458 |
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459 | ptr = endptr;
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460 | }
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461 | }
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462 | }
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463 | }
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464 |
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465 |
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466 | void
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467 | X3dViewCellsParser::StartCoordinate(
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468 | AttributeList& attributes)
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469 | {
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470 | int len = attributes.getLength();
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471 |
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472 | VertexContainer vertices;
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473 |
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474 | for (int i=0; i < len; i++)
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475 | {
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476 | string attrName(StrX(attributes.getName(i)).LocalForm());
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477 |
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478 | if (attrName == "point")
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479 | {
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480 | StrX attrValue(attributes.getValue(i));
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481 |
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482 | const char *ptr = attrValue.LocalForm();
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483 |
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484 | char *endptr;
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485 |
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486 | while (1)
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487 | {
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488 | float x = strtod(ptr, &endptr);
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489 |
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490 | if (ptr == endptr)
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491 | break;
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492 | ptr = endptr;
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493 |
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494 | float y = strtod(ptr, &endptr);
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495 |
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496 |
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497 | if (ptr == endptr)
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498 | break;
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499 | ptr = endptr;
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500 |
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501 | float z = strtod(ptr, &endptr);
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502 |
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503 | if (ptr == endptr)
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504 | break;
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505 |
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506 | ptr = endptr;
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507 | if (*ptr == ',')
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508 | ptr++;
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509 |
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510 | Vector3 v(x, y, z);
|
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511 | vertices.push_back(v);
|
---|
512 | }
|
---|
513 | mCurrentMesh->mVertices = vertices;
|
---|
514 | }
|
---|
515 | }
|
---|
516 | }
|
---|
517 |
|
---|
518 |
|
---|
519 | void
|
---|
520 | X3dViewCellsParser::startElement(const XMLCh* const name,
|
---|
521 | AttributeList& attributes)
|
---|
522 | {
|
---|
523 | StrX lname(name);
|
---|
524 | string element(lname.LocalForm());
|
---|
525 |
|
---|
526 | if (element == "IndexedFaceSet") {
|
---|
527 | // create a new mesh node in the scene graph
|
---|
528 | StartIndexedFaceSet(attributes);
|
---|
529 | }
|
---|
530 |
|
---|
531 | if (element == "Shape") {
|
---|
532 | cout<<"+";
|
---|
533 | mCurrentMesh = new Mesh;
|
---|
534 | }
|
---|
535 |
|
---|
536 | if (element == "Coordinate") {
|
---|
537 | if (mCurrentMesh)
|
---|
538 | StartCoordinate(attributes);
|
---|
539 | }
|
---|
540 |
|
---|
541 | if (element == "Material") {
|
---|
542 | StartMaterial(attributes);
|
---|
543 | }
|
---|
544 |
|
---|
545 | mElementCount++;
|
---|
546 | mAttrCount += attributes.getLength();
|
---|
547 | }
|
---|
548 |
|
---|
549 | void
|
---|
550 | X3dViewCellsParser::characters(const XMLCh* const chars,
|
---|
551 | const unsigned int length)
|
---|
552 | {
|
---|
553 | mCharacterCount += length;
|
---|
554 | }
|
---|
555 |
|
---|
556 | void
|
---|
557 | X3dViewCellsParser::ignorableWhitespace(const XMLCh* const chars,
|
---|
558 | const unsigned int length)
|
---|
559 | {
|
---|
560 | mSpaceCount += length;
|
---|
561 | }
|
---|
562 |
|
---|
563 | void
|
---|
564 | X3dViewCellsParser::resetDocument()
|
---|
565 | {
|
---|
566 | mAttrCount = 0;
|
---|
567 | mCharacterCount = 0;
|
---|
568 | mElementCount = 0;
|
---|
569 | mSpaceCount = 0;
|
---|
570 | }
|
---|
571 |
|
---|
572 |
|
---|
573 |
|
---|
574 | // ---------------------------------------------------------------------------
|
---|
575 | // StdInParseHandlers: Overrides of the SAX ErrorHandler interface
|
---|
576 | // ---------------------------------------------------------------------------
|
---|
577 | void
|
---|
578 | X3dViewCellsParser::error(const SAXParseException& e)
|
---|
579 | {
|
---|
580 | XERCES_STD_QUALIFIER cerr << "\nError at (file " << StrX(e.getSystemId())
|
---|
581 | << ", line " << e.getLineNumber()
|
---|
582 | << ", char " << e.getColumnNumber()
|
---|
583 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
|
---|
584 | }
|
---|
585 |
|
---|
586 | void
|
---|
587 | X3dViewCellsParser::fatalError(const SAXParseException& e)
|
---|
588 | {
|
---|
589 | XERCES_STD_QUALIFIER cerr << "\nFatal Error at (file " << StrX(e.getSystemId())
|
---|
590 | << ", line " << e.getLineNumber()
|
---|
591 | << ", char " << e.getColumnNumber()
|
---|
592 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
|
---|
593 | }
|
---|
594 |
|
---|
595 | void
|
---|
596 | X3dViewCellsParser::warning(const SAXParseException& e)
|
---|
597 | {
|
---|
598 | XERCES_STD_QUALIFIER cerr << "\nWarning at (file " << StrX(e.getSystemId())
|
---|
599 | << ", line " << e.getLineNumber()
|
---|
600 | << ", char " << e.getColumnNumber()
|
---|
601 | << "): " << StrX(e.getMessage()) << XERCES_STD_QUALIFIER endl;
|
---|
602 | }
|
---|
603 |
|
---|
604 |
|
---|
605 | bool
|
---|
606 | X3dParser::ParseFile(const string filename,
|
---|
607 | SceneGraphNode **root)
|
---|
608 | {
|
---|
609 | // Initialize the XML4C system
|
---|
610 | try {
|
---|
611 | XMLPlatformUtils::Initialize();
|
---|
612 | }
|
---|
613 |
|
---|
614 | catch (const XMLException& toCatch)
|
---|
615 | {
|
---|
616 | XERCES_STD_QUALIFIER cerr << "Error during initialization! Message:\n"
|
---|
617 | << StrX(toCatch.getMessage()) << XERCES_STD_QUALIFIER endl;
|
---|
618 | return false;
|
---|
619 | }
|
---|
620 |
|
---|
621 |
|
---|
622 | //
|
---|
623 | // Create a SAX parser object. Then, according to what we were told on
|
---|
624 | // the command line, set the options.
|
---|
625 | //
|
---|
626 | SAXParser* parser = new SAXParser;
|
---|
627 | parser->setValidationScheme(valScheme);
|
---|
628 | parser->setDoNamespaces(doNamespaces);
|
---|
629 | parser->setDoSchema(doSchema);
|
---|
630 | parser->setValidationSchemaFullChecking(schemaFullChecking);
|
---|
631 |
|
---|
632 |
|
---|
633 | //
|
---|
634 | // Create our SAX handler object and install it on the parser, as the
|
---|
635 | // document and error handler. We are responsible for cleaning them
|
---|
636 | // up, but since its just stack based here, there's nothing special
|
---|
637 | // to do.
|
---|
638 | //
|
---|
639 | *root = new SceneGraphNode;
|
---|
640 | X3dViewCellsParser handler(*root);
|
---|
641 | parser->setDocumentHandler(&handler);
|
---|
642 | parser->setErrorHandler(&handler);
|
---|
643 |
|
---|
644 | unsigned long duration;
|
---|
645 | int errorCount = 0;
|
---|
646 | // create a faux scope so that 'src' destructor is called before
|
---|
647 | // XMLPlatformUtils::Terminate
|
---|
648 | {
|
---|
649 | //
|
---|
650 | // Kick off the parse and catch any exceptions. Create a standard
|
---|
651 | // input input source and tell the parser to parse from that.
|
---|
652 | //
|
---|
653 | // StdInInputSource src;
|
---|
654 | try
|
---|
655 | {
|
---|
656 | const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
|
---|
657 | parser->parse(filename.c_str());
|
---|
658 | const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
|
---|
659 | duration = endMillis - startMillis;
|
---|
660 | errorCount = parser->getErrorCount();
|
---|
661 | }
|
---|
662 | catch (const OutOfMemoryException&)
|
---|
663 | {
|
---|
664 | XERCES_STD_QUALIFIER cerr << "OutOfMemoryException" << XERCES_STD_QUALIFIER endl;
|
---|
665 | errorCount = 2;
|
---|
666 | return false;
|
---|
667 | }
|
---|
668 | catch (const XMLException& e)
|
---|
669 | {
|
---|
670 | XERCES_STD_QUALIFIER cerr << "\nError during parsing: \n"
|
---|
671 | << StrX(e.getMessage())
|
---|
672 | << "\n" << XERCES_STD_QUALIFIER endl;
|
---|
673 | errorCount = 1;
|
---|
674 | return false;
|
---|
675 | }
|
---|
676 |
|
---|
677 |
|
---|
678 | // Print out the stats that we collected and time taken
|
---|
679 | if (!errorCount) {
|
---|
680 | XERCES_STD_QUALIFIER cout << filename << ": " << duration << " ms ("
|
---|
681 | << handler.GetElementCount() << " elems, "
|
---|
682 | << handler.GetAttrCount() << " attrs, "
|
---|
683 | << handler.GetSpaceCount() << " spaces, "
|
---|
684 | << handler.GetCharacterCount() << " chars)" << XERCES_STD_QUALIFIER endl;
|
---|
685 | }
|
---|
686 | }
|
---|
687 |
|
---|
688 | //
|
---|
689 | // Delete the parser itself. Must be done prior to calling Terminate, below.
|
---|
690 | //
|
---|
691 | delete parser;
|
---|
692 |
|
---|
693 | XMLPlatformUtils::Terminate();
|
---|
694 |
|
---|
695 | if (errorCount > 0)
|
---|
696 | return false;
|
---|
697 | else
|
---|
698 | return true;
|
---|
699 | } |
---|