1 | /* |
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2 | * ---------------------------------------------------------------------- |
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3 | * Rappture Library Source |
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4 | * |
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5 | * ====================================================================== |
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6 | * AUTHOR: Derrick Kearney, Purdue University |
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7 | * Copyright (c) 2004-2005 Purdue Research Foundation |
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8 | * |
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9 | * See the file "license.terms" for information on usage and |
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10 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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11 | * ====================================================================== |
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12 | */ |
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13 | |
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14 | #include "RpLibrary.h" |
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15 | |
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16 | /**********************************************************************/ |
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17 | // METHOD: _get_attribute() |
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18 | /// Return the attribute value matching the provided attribute name. |
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19 | /** |
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20 | */ |
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21 | |
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22 | std::string |
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23 | RpLibrary::_get_attribute(scew_element* element, std::string attributeName) |
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24 | { |
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25 | scew_attribute* attribute = NULL; |
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26 | std::string attrVal; |
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27 | // int attrValSize = 0; |
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28 | |
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29 | if (element != NULL) |
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30 | { |
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31 | if (scew_attribute_count(element) > 0) { |
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32 | |
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33 | while((attribute=scew_attribute_next(element, attribute)) != NULL) |
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34 | { |
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35 | if ( strcmp( scew_attribute_name(attribute), |
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36 | attributeName.c_str()) == 0 ){ |
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37 | attrVal = scew_attribute_value(attribute); |
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38 | } |
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39 | } |
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40 | } |
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41 | else { |
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42 | // there are no attributes, count == 0 |
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43 | } |
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44 | } |
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45 | |
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46 | return attrVal; |
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47 | } |
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48 | |
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49 | /**********************************************************************/ |
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50 | // METHOD: _path2list() |
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51 | /// Convert a path into a list of element names. |
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52 | /** |
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53 | */ |
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54 | |
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55 | int |
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56 | RpLibrary::_path2list (std::string& path, std::string** list, int listLen) |
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57 | { |
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58 | std::string::size_type pos = 0; |
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59 | std::string::size_type start = 0; |
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60 | int index = 0; |
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61 | int retVal = 0; |
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62 | |
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63 | // listLen should be the highest index + 1 |
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64 | for ( pos = path.find(".",0); |
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65 | (pos != std::string::npos) || (index >= listLen); |
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66 | pos = path.find(".",pos) ) |
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67 | { |
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68 | list[index++] = new std::string(path.substr(start,pos-start)); |
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69 | start = ++pos; |
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70 | } |
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71 | |
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72 | // add the last path to the list |
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73 | if (index < listLen) { |
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74 | // error checking for path names? |
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75 | // what if you get something like p1.p2. ? |
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76 | list[index] = new std::string(path.substr(start,path.length()-start)); |
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77 | } |
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78 | |
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79 | retVal = index++; |
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80 | |
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81 | // null out the rest of the pointers so we know where to stop free'ing |
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82 | while (index < listLen) { |
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83 | list[index++] = NULL; |
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84 | } |
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85 | |
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86 | return retVal; |
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87 | } |
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88 | |
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89 | /**********************************************************************/ |
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90 | // METHOD: _node2name() |
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91 | /// Retrieve the id of a node. |
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92 | /** |
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93 | */ |
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94 | |
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95 | std::string |
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96 | RpLibrary::_node2name (scew_element* node) |
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97 | { |
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98 | // XML_Char const* name = _get_attribute(node,"id"); |
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99 | std::string name = _get_attribute(node,"id"); |
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100 | std::stringstream retVal; |
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101 | XML_Char const* type = NULL; |
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102 | scew_element* parent = NULL; |
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103 | scew_element** siblings = NULL; |
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104 | unsigned int count = 0; |
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105 | int tmpCount = 0; |
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106 | int index = 0; |
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107 | std::string indexStr; |
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108 | |
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109 | type = scew_element_name(node); |
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110 | parent = scew_element_parent(node); |
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111 | |
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112 | // if (name == NULL) { |
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113 | if (name.empty()) { |
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114 | siblings = scew_element_list(parent, type, &count); |
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115 | if (count > 0) { |
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116 | tmpCount = count; |
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117 | while ((index < tmpCount) && (siblings[index] != node)) { |
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118 | index++; |
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119 | } |
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120 | |
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121 | if (index < tmpCount) { |
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122 | |
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123 | if (index > 0) { |
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124 | |
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125 | retVal << type << --index; |
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126 | } |
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127 | else { |
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128 | |
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129 | retVal << type; |
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130 | } |
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131 | |
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132 | /* |
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133 | if (retVal == NULL) { |
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134 | // error with allocating space |
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135 | return NULL; |
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136 | } |
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137 | */ |
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138 | } |
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139 | } |
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140 | |
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141 | scew_element_list_free(siblings); |
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142 | |
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143 | } |
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144 | else { |
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145 | |
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146 | retVal << name; |
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147 | } |
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148 | |
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149 | return (retVal.str()); |
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150 | } |
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151 | |
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152 | /**********************************************************************/ |
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153 | // METHOD: _node2comp() |
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154 | /// Retrieve the component name of a node |
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155 | /** |
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156 | */ |
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157 | |
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158 | std::string |
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159 | RpLibrary::_node2comp (scew_element* node) |
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160 | { |
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161 | // XML_Char const* name = _get_attribute(node,"id"); |
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162 | std::string name = _get_attribute(node,"id"); |
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163 | std::stringstream retVal; |
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164 | XML_Char const* type = NULL; |
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165 | scew_element* parent = NULL; |
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166 | scew_element** siblings = NULL; |
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167 | unsigned int count = 0; |
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168 | int tmpCount = 0; |
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169 | int index = 0; |
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170 | std::string indexStr; |
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171 | |
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172 | type = scew_element_name(node); |
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173 | parent = scew_element_parent(node); |
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174 | |
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175 | // if (name == NULL) { |
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176 | if (name.empty()) { |
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177 | siblings = scew_element_list(parent, type, &count); |
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178 | if (count > 0) { |
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179 | tmpCount = count; |
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180 | while ((index < tmpCount) && (siblings[index] != node)) { |
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181 | index++; |
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182 | } |
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183 | |
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184 | if (index < tmpCount) { |
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185 | |
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186 | if (index > 0) { |
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187 | retVal << type << --index; |
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188 | } |
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189 | else { |
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190 | retVal << type; |
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191 | } |
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192 | |
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193 | /* |
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194 | if (retVal == NULL) { |
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195 | // error with allocating space |
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196 | return NULL; |
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197 | } |
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198 | */ |
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199 | } |
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200 | |
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201 | } |
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202 | else { |
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203 | // count == 0 ??? |
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204 | } |
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205 | scew_element_list_free(siblings); |
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206 | |
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207 | } |
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208 | else { |
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209 | // node has attribute id |
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210 | // |
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211 | |
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212 | // retVal = scew_strjoinXX(type,name); |
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213 | retVal << type << "(" << name << ")"; |
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214 | |
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215 | } |
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216 | |
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217 | return (retVal.str()); |
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218 | } |
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219 | |
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220 | /**********************************************************************/ |
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221 | // METHOD: _splitPath() |
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222 | /// Split a path (component) name into its tag name, index, and id |
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223 | /** |
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224 | */ |
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225 | |
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226 | int |
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227 | RpLibrary::_splitPath (std::string& path, std::string& tagName, int* idx, std::string& id ) |
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228 | { |
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229 | int stop = 0; |
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230 | int start = 0; |
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231 | int index = path.length(); |
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232 | |
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233 | if (index) { |
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234 | index--; |
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235 | } |
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236 | |
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237 | if (!path.empty()) { |
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238 | if (path[index] == ')') { |
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239 | stop = index; |
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240 | while (path[index] != '(') { |
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241 | index--; |
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242 | } |
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243 | start = index+1; |
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244 | // strncpy(id,path+start,stop-start); |
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245 | // id = new std::string(path.substr(start,stop-start)); |
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246 | id = path.substr(start,stop-start); |
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247 | index--; |
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248 | } |
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249 | if (isdigit(path[index])) { |
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250 | stop = index; |
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251 | while (isdigit(path[index])) { |
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252 | index--; |
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253 | } |
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254 | // sscanf(path[index+1],"%d",idx); |
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255 | sscanf(path.c_str()+index+1,"%d",idx); |
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256 | } |
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257 | if (isalpha(path[index])) { |
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258 | start = 0; |
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259 | stop = index+1; |
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260 | // tagName = new std::string(path.substr(start,stop-start)); |
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261 | tagName = path.substr(start,stop-start); |
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262 | // strncpy(tagName,path+start,stop-start); |
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263 | } |
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264 | } |
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265 | else { |
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266 | tagName = ""; |
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267 | *idx = 0; |
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268 | id = ""; |
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269 | } |
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270 | |
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271 | return 1; |
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272 | } |
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273 | |
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274 | /**********************************************************************/ |
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275 | // METHOD: _find() |
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276 | /// Find or create a node and return it. |
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277 | /** |
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278 | */ |
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279 | |
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280 | scew_element* |
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281 | RpLibrary::_find(std::string path, int create) |
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282 | { |
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283 | // std::string* tagName; |
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284 | // std::string* id; |
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285 | std::string tagName = ""; |
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286 | std::string id = ""; |
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287 | int index = 0; |
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288 | int listLen = (path.length()/2)+1; |
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289 | std::string* list[listLen]; |
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290 | int path_size = 0; |
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291 | int listIdx = 0; |
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292 | unsigned int count = 0; |
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293 | int tmpCount = 0; |
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294 | int lcv = 0; |
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295 | std::string tmpId; |
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296 | |
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297 | scew_element* tmpElement = this->root; |
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298 | scew_element* node = NULL; |
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299 | scew_element** eleList = NULL; |
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300 | |
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301 | |
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302 | if (path.empty()) { |
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303 | //user gave an empty path |
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304 | // return this; |
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305 | return tmpElement; |
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306 | } |
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307 | |
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308 | if (!list) { |
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309 | // error calloc'ing space for list |
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310 | return NULL; |
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311 | } |
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312 | |
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313 | path_size = _path2list (path,list,listLen); |
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314 | |
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315 | while ( (listIdx <= path_size) && (tmpElement != NULL ) ){ |
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316 | |
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317 | _splitPath(*(list[listIdx]),tagName,&index,id); |
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318 | |
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319 | // if (id->empty()) { |
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320 | if (id.empty()) { |
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321 | /* |
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322 | # If the name is like "type2", then look for elements with |
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323 | # the type name and return the one with the given index. |
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324 | # If the name is like "type", then assume the index is 0. |
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325 | */ |
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326 | |
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327 | // eleList = scew_element_list(tmpElement, tagName->c_str(), &count); |
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328 | eleList = scew_element_list(tmpElement, tagName.c_str(), &count); |
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329 | tmpCount = count; |
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330 | if (index < tmpCount) { |
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331 | node = eleList[index]; |
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332 | } |
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333 | else { |
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334 | /* there is no element with the specified index */ |
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335 | node = NULL; |
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336 | } |
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337 | |
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338 | scew_element_list_free(eleList); |
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339 | eleList = NULL; |
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340 | } |
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341 | else { |
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342 | |
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343 | /* what if its like type2(id) ? */ |
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344 | /* still unresolved */ |
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345 | |
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346 | /* |
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347 | # If the name is like "type(id)", then look for elements |
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348 | # that match the type and see if one has the requested name. |
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349 | # if the name is like "(id)", then look for any elements |
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350 | # with the requested name. |
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351 | */ |
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352 | |
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353 | // eleList = scew_element_list(tmpElement, tagName->c_str(), &count); |
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354 | if (!tagName.empty()) { |
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355 | eleList = scew_element_list(tmpElement, tagName.c_str(), &count); |
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356 | } |
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357 | else { |
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358 | eleList = scew_element_list_all(tmpElement, &count); |
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359 | } |
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360 | |
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361 | tmpCount = count; |
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362 | for (lcv = 0; (lcv < tmpCount); lcv++) { |
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363 | tmpId = _get_attribute(eleList[lcv], "id"); |
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364 | if (!tmpId.empty()) { |
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365 | // if (*id == tmpId) { |
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366 | if (id == tmpId) { |
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367 | node = eleList[lcv]; |
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368 | break; |
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369 | } |
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370 | } |
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371 | } |
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372 | |
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373 | if (lcv >= tmpCount) { |
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374 | node = NULL; |
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375 | } |
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376 | |
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377 | scew_element_list_free(eleList); |
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378 | eleList = NULL; |
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379 | |
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380 | } |
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381 | |
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382 | if (node == NULL) { |
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383 | if (create == 0) { |
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384 | // break out instead of returning because we still need to |
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385 | // free the list variable |
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386 | // return node; |
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387 | tmpElement = node; |
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388 | break; |
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389 | } |
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390 | else { |
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391 | // create == 1 |
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392 | // we should create the rest of the path |
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393 | |
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394 | // create the new element |
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395 | // need to figure out how to properly number the new element |
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396 | // node = scew_element_add(tmpElement,tagName->c_str()); |
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397 | node = scew_element_add(tmpElement,tagName.c_str()); |
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398 | if (! node) { |
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399 | // a new element was not created |
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400 | } |
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401 | |
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402 | // add an attribute and attrValue to the new element |
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403 | // if (id && !id->empty()) { |
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404 | // scew_element_add_attr_pair(node,"id",id->c_str()); |
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405 | if (!id.empty()) { |
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406 | scew_element_add_attr_pair(node,"id",id.c_str()); |
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407 | } |
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408 | } |
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409 | } |
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410 | |
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411 | |
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412 | // change this so youre not allocating and deallocating so much. |
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413 | // make it static or something. |
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414 | // if (tagName) { delete (tagName); } |
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415 | // if (id) { delete (id); } |
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416 | tagName = ""; |
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417 | id = ""; |
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418 | index = 0; |
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419 | tmpElement = node; |
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420 | listIdx++; |
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421 | } |
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422 | |
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423 | // need to free the strings inside of list |
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424 | |
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425 | if (list) { |
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426 | for (listIdx = 0; listIdx < listLen; listIdx++) { |
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427 | if (list[listIdx]) { |
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428 | delete(list[listIdx]); |
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429 | list[listIdx] = NULL; |
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430 | } |
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431 | } |
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432 | |
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433 | // should we really be freeing list since its on the stack as a fxn variable? |
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434 | // free(list); |
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435 | // list = NULL; |
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436 | } |
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437 | |
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438 | |
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439 | return tmpElement; |
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440 | } |
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441 | |
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442 | |
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443 | /**********************************************************************/ |
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444 | // METHOD: element() |
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445 | /// Search the path of a xml tree and return a RpLibrary node. |
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446 | /** |
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447 | */ |
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448 | |
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449 | RpLibrary* |
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450 | RpLibrary::element (std::string path) |
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451 | { |
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452 | RpLibrary* retLib; |
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453 | |
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454 | if (path.empty()) { |
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455 | // an empty path returns the current RpLibrary |
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456 | return this; |
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457 | } |
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458 | |
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459 | scew_element* retNode = _find(path,0); |
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460 | |
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461 | if (retNode == NULL) { |
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462 | // add error information as to why we are returning NULL |
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463 | return NULL; |
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464 | } |
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465 | |
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466 | retLib = new RpLibrary( retNode ); |
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467 | |
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468 | if (!retLib) { |
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469 | // add error information as to why we are returning NULL |
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470 | /* there was an error mallocing memory for a RpLibrary object */ |
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471 | return NULL; |
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472 | } |
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473 | |
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474 | return retLib; |
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475 | } |
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476 | |
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477 | /**********************************************************************/ |
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478 | // METHOD: children() |
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479 | /// Return the next child of the node located at 'path' |
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480 | // |
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481 | // The lookup is reset when you send a NULL rpChilNode. |
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482 | // |
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483 | /** |
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484 | */ |
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485 | |
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486 | RpLibrary* |
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487 | RpLibrary::children ( std::string path, |
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488 | RpLibrary* rpChildNode, |
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489 | std::string type, |
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490 | int* childCount) |
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491 | { |
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492 | static std::string old_path = ""; |
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493 | static RpLibrary* retLib = NULL; |
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494 | int myChildCount = 0; |
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495 | scew_element* parentNode = NULL; |
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496 | scew_element* childNode = NULL; |
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497 | std::string childName = ""; |
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498 | |
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499 | |
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500 | if (path.empty()) { |
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501 | // an empty path uses the current RpLibrary as parent |
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502 | parentNode = this->root; |
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503 | } |
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504 | else { |
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505 | // check to see if this path is the same as the one set |
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506 | // in the last call to this function. |
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507 | // if so, then we dont need to reset the parentNode |
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508 | // |
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509 | // this check is probably more dependent on rpChildNode |
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510 | // because we want to see if the person want to continue |
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511 | // an old search or start from the beginning of the child list |
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512 | // |
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513 | if ( (path.compare(old_path) == 0) && (rpChildNode != NULL) ) { |
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514 | parentNode = NULL; |
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515 | } |
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516 | // we need to search for a new parentNode |
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517 | else { |
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518 | parentNode = _find(path,0); |
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519 | if (parentNode == NULL) { |
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520 | // node not found |
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521 | // add error code here |
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522 | return NULL; |
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523 | } |
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524 | } |
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525 | } |
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526 | |
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527 | old_path = path; |
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528 | |
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529 | |
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530 | if (rpChildNode) { |
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531 | childNode = rpChildNode->root; |
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532 | } |
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533 | |
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534 | if (parentNode) { |
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535 | myChildCount = scew_element_count(parentNode); |
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536 | } |
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537 | |
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538 | if (childCount) { |
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539 | *childCount = myChildCount; |
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540 | } |
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541 | |
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542 | if ( (childNode = scew_element_next(parentNode,childNode)) ) { |
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543 | |
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544 | if (!type.empty()) { |
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545 | childName = scew_element_name(childNode); |
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546 | // we are searching for a specific child name |
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547 | // keep looking till we find a name that matches the type. |
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548 | while (type != childName) { |
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549 | childNode = scew_element_next(parentNode,childNode); |
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550 | childName = scew_element_name(childNode); |
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551 | } |
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552 | if (type == childName) { |
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553 | // found a child with a name that matches type |
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554 | // clean up old memory |
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555 | delete retLib; |
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556 | retLib = new RpLibrary( childNode ); |
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557 | } |
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558 | else { |
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559 | // no children with names that match 'type' were found |
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560 | delete retLib; |
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561 | retLib = NULL; |
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562 | } |
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563 | } |
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564 | else { |
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565 | // clean up old memory |
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566 | delete retLib; |
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567 | retLib = new RpLibrary( childNode ); |
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568 | } |
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569 | } |
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570 | else { |
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571 | // somthing happened within scew, get error code and display |
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572 | // its probable there are no more child elements left to report |
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573 | // clean up old memory |
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574 | delete retLib; |
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575 | retLib = NULL; |
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576 | } |
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577 | |
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578 | return retLib; |
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579 | } |
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580 | |
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581 | /**********************************************************************/ |
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582 | // METHOD: get() |
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583 | /// Return the string value of the object held at location 'path' |
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584 | /** |
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585 | */ |
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586 | |
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587 | std::string |
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588 | RpLibrary::get (std::string path) |
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589 | { |
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590 | return (this->getString(path)); |
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591 | } |
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592 | |
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593 | /**********************************************************************/ |
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594 | // METHOD: getString() |
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595 | /// Return the string value of the object held at location 'path' |
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596 | /** |
---|
597 | */ |
---|
598 | |
---|
599 | std::string |
---|
600 | RpLibrary::getString (std::string path) |
---|
601 | { |
---|
602 | scew_element* retNode = _find(path,0); |
---|
603 | XML_Char const* retCStr = NULL; |
---|
604 | |
---|
605 | if (retNode == NULL) { |
---|
606 | // need to raise error |
---|
607 | return std::string(""); |
---|
608 | } |
---|
609 | |
---|
610 | retCStr = scew_element_contents(retNode); |
---|
611 | |
---|
612 | if (!retCStr) { |
---|
613 | return std::string(""); |
---|
614 | } |
---|
615 | |
---|
616 | return std::string(retCStr); |
---|
617 | } |
---|
618 | |
---|
619 | /**********************************************************************/ |
---|
620 | // METHOD: getDouble() |
---|
621 | /// Return the double value of the object held at location 'path' |
---|
622 | /** |
---|
623 | */ |
---|
624 | |
---|
625 | double |
---|
626 | RpLibrary::getDouble (std::string path) |
---|
627 | { |
---|
628 | std::string retValStr = ""; |
---|
629 | double retValDbl = 0; |
---|
630 | |
---|
631 | retValStr = this->getString(path); |
---|
632 | // think about changing this to strtod() |
---|
633 | retValDbl = atof(retValStr.c_str()); |
---|
634 | |
---|
635 | // how do we raise error? |
---|
636 | // currently we depend on getString to raise the error |
---|
637 | return retValDbl; |
---|
638 | } |
---|
639 | |
---|
640 | |
---|
641 | /**********************************************************************/ |
---|
642 | // METHOD: put() |
---|
643 | /// Put a string value into the xml. |
---|
644 | /** |
---|
645 | */ |
---|
646 | |
---|
647 | RpLibrary& |
---|
648 | RpLibrary::put ( std::string path, std::string value, std::string id, int append ) |
---|
649 | { |
---|
650 | scew_element* retNode = NULL; |
---|
651 | std::string tmpVal = ""; |
---|
652 | const char* contents = NULL; |
---|
653 | |
---|
654 | if (! path.empty()) { |
---|
655 | retNode = _find(path,1); |
---|
656 | |
---|
657 | if (retNode) { |
---|
658 | |
---|
659 | if (append) { |
---|
660 | if ( (contents = scew_element_contents(retNode)) ) { |
---|
661 | tmpVal = std::string(contents); |
---|
662 | } |
---|
663 | value = tmpVal + value; |
---|
664 | } |
---|
665 | |
---|
666 | scew_element_set_contents(retNode,value.c_str()); |
---|
667 | } |
---|
668 | } |
---|
669 | |
---|
670 | return *this; |
---|
671 | } |
---|
672 | |
---|
673 | /**********************************************************************/ |
---|
674 | // METHOD: put() |
---|
675 | /// Put a double value into the xml. |
---|
676 | /** |
---|
677 | */ |
---|
678 | |
---|
679 | RpLibrary& |
---|
680 | RpLibrary::put ( std::string path, double value, std::string id, int append ) |
---|
681 | { |
---|
682 | std::stringstream valStr; |
---|
683 | |
---|
684 | valStr << value; |
---|
685 | |
---|
686 | return this->put(path,valStr.str(),id,append); |
---|
687 | } |
---|
688 | |
---|
689 | /* |
---|
690 | RpLibrary& |
---|
691 | RpLibrary::remove ( std::string path ) |
---|
692 | { |
---|
693 | scew_element* ele = _find(path,0); |
---|
694 | RpLibrary* retLib; |
---|
695 | if (ele) { |
---|
696 | retLib = new RpLibrary(ele) |
---|
697 | } |
---|
698 | |
---|
699 | return *retLib |
---|
700 | } |
---|
701 | */ |
---|
702 | |
---|
703 | /**********************************************************************/ |
---|
704 | // METHOD: xml() |
---|
705 | /// Return the xml text held in this RpLibrary |
---|
706 | /** |
---|
707 | */ |
---|
708 | |
---|
709 | std::string |
---|
710 | RpLibrary::xml () |
---|
711 | { |
---|
712 | std::stringstream outString; |
---|
713 | |
---|
714 | outString << "<?xml version=\"1.0\"?>\n"; |
---|
715 | print_element(this->root, 0, outString); |
---|
716 | |
---|
717 | return outString.str(); |
---|
718 | } |
---|
719 | |
---|
720 | /**********************************************************************/ |
---|
721 | // METHOD: nodeType() |
---|
722 | /// Return the type name of this node |
---|
723 | /** |
---|
724 | */ |
---|
725 | |
---|
726 | std::string |
---|
727 | RpLibrary::nodeType () |
---|
728 | { |
---|
729 | return std::string(scew_element_name(root)); |
---|
730 | } |
---|
731 | |
---|
732 | /**********************************************************************/ |
---|
733 | // METHOD: nodeId() |
---|
734 | /// Return the id of this node. |
---|
735 | /** |
---|
736 | */ |
---|
737 | |
---|
738 | std::string |
---|
739 | RpLibrary::nodeId () |
---|
740 | { |
---|
741 | return _node2name(root); |
---|
742 | } |
---|
743 | |
---|
744 | /**********************************************************************/ |
---|
745 | // METHOD: nodeComp() |
---|
746 | /// Return the component name of this node. |
---|
747 | /** |
---|
748 | */ |
---|
749 | |
---|
750 | std::string |
---|
751 | RpLibrary::nodeComp () |
---|
752 | { |
---|
753 | return _node2comp(root); |
---|
754 | } |
---|
755 | |
---|
756 | /* |
---|
757 | * ---------------------------------------------------------------------- |
---|
758 | * METHOD: result |
---|
759 | * |
---|
760 | * Clients call this function at the end of their simulation, to |
---|
761 | * pass the simulation result back to the Rappture GUI. It writes |
---|
762 | * out the given XML object to a runXXX.xml file, and then writes |
---|
763 | * out the name of that file to stdout. |
---|
764 | * ====================================================================== |
---|
765 | * AUTHOR: Michael McLennan, Purdue University |
---|
766 | * Copyright (c) 2004-2005 |
---|
767 | * Purdue Research Foundation, West Lafayette, IN |
---|
768 | * ====================================================================== |
---|
769 | */ |
---|
770 | void |
---|
771 | RpLibrary::result() { |
---|
772 | std::stringstream outputFile; |
---|
773 | std::fstream file; |
---|
774 | std::string xmlText = ""; |
---|
775 | time_t t = 0; |
---|
776 | |
---|
777 | outputFile << "run" << (int)time(&t) << ".xml"; |
---|
778 | file.open(outputFile.str().c_str(),std::ios::out); |
---|
779 | |
---|
780 | if ( file.is_open() ) { |
---|
781 | xmlText = xml(); |
---|
782 | if (!xmlText.empty()) { |
---|
783 | file << xmlText; |
---|
784 | } |
---|
785 | } |
---|
786 | std::cout << "=RAPPTURE-RUN=>" << outputFile.str() << std::endl; |
---|
787 | } |
---|
788 | |
---|
789 | /**********************************************************************/ |
---|
790 | // METHOD: print_indent() |
---|
791 | /// Add indentations to the requested stringstream object. |
---|
792 | /** |
---|
793 | */ |
---|
794 | |
---|
795 | void |
---|
796 | RpLibrary::print_indent(unsigned int indent, std::stringstream& outString) |
---|
797 | { |
---|
798 | |
---|
799 | // keep this around incase you want to use tabs instead of spaces |
---|
800 | // while ( (indent--) > 0) |
---|
801 | // { |
---|
802 | // outString << "\t"; |
---|
803 | // } |
---|
804 | |
---|
805 | // keep this around incase you want to use spaces instead of tabs |
---|
806 | int cnt = indent*INDENT_SIZE; |
---|
807 | while ( (cnt--) > 0) |
---|
808 | { |
---|
809 | outString << " "; |
---|
810 | } |
---|
811 | |
---|
812 | } |
---|
813 | |
---|
814 | /**********************************************************************/ |
---|
815 | // METHOD: print_attributes() |
---|
816 | /// Print the attribute names and values for the provided xml node |
---|
817 | /** |
---|
818 | */ |
---|
819 | |
---|
820 | void |
---|
821 | RpLibrary::print_attributes(scew_element* element, std::stringstream& outString) |
---|
822 | { |
---|
823 | scew_attribute* attribute = NULL; |
---|
824 | |
---|
825 | if (element != NULL) |
---|
826 | { |
---|
827 | /** |
---|
828 | * Iterates through the element's attribute list, printing the |
---|
829 | * pair name-value. |
---|
830 | */ |
---|
831 | attribute = NULL; |
---|
832 | while ((attribute = scew_attribute_next(element, attribute)) != NULL) |
---|
833 | { |
---|
834 | outString << " " << scew_attribute_name(attribute) << "=\"" << |
---|
835 | scew_attribute_value(attribute) << "\""; |
---|
836 | } |
---|
837 | } |
---|
838 | } |
---|
839 | |
---|
840 | |
---|
841 | /**********************************************************************/ |
---|
842 | // METHOD: print_element() |
---|
843 | /// Print the value of the node and its attributes to a stringstream object |
---|
844 | /** |
---|
845 | */ |
---|
846 | |
---|
847 | void |
---|
848 | RpLibrary::print_element( scew_element* element, |
---|
849 | unsigned int indent, |
---|
850 | std::stringstream& outString ) |
---|
851 | { |
---|
852 | scew_element* child = NULL; |
---|
853 | XML_Char const* contents = NULL; |
---|
854 | |
---|
855 | if (element == NULL) |
---|
856 | { |
---|
857 | return; |
---|
858 | } |
---|
859 | |
---|
860 | /** |
---|
861 | * Prints the starting element tag with its attributes. |
---|
862 | */ |
---|
863 | print_indent(indent, outString); |
---|
864 | outString << "<" << scew_element_name(element); |
---|
865 | print_attributes(element,outString); |
---|
866 | outString << ">"; |
---|
867 | contents = scew_element_contents(element); |
---|
868 | if (contents == NULL) |
---|
869 | { |
---|
870 | outString << "\n"; |
---|
871 | } |
---|
872 | |
---|
873 | /** |
---|
874 | * Call print_element function again for each child of the |
---|
875 | * current element. |
---|
876 | */ |
---|
877 | child = NULL; |
---|
878 | while ((child = scew_element_next(element, child)) != NULL) |
---|
879 | { |
---|
880 | print_element(child, indent + 1, outString); |
---|
881 | } |
---|
882 | |
---|
883 | /* Prints element's content. */ |
---|
884 | if (contents != NULL) |
---|
885 | { |
---|
886 | outString << contents; |
---|
887 | } |
---|
888 | else |
---|
889 | { |
---|
890 | print_indent(indent, outString); |
---|
891 | } |
---|
892 | |
---|
893 | /** |
---|
894 | * Prints the closing element tag. |
---|
895 | */ |
---|
896 | outString << "</" << scew_element_name(element) << ">\n" ; |
---|
897 | } |
---|
898 | |
---|