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annotate inputParser.inc @ 59:0e157721bbad

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Change the way we parse input files, preparing for more reasonable caching strategy.
author Tom Fredrik "BFG" Klaussen <bfg@blenning.no>
date Thu, 11 Oct 2012 16:40:03 +0200
parents 2cfea6e84694
children b7efe2ecbc11
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1 <?php
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2 /**
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3 * @file
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4 * Functionality for translating an XML document into a webpage
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5 */
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6 function getParam($param)
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7 {
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8 $param_type=$param->getAttribute("type");
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9 $param_value;
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10 if (!$param_type)
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11 $param_type="scalar";
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13 if($param_type == "scalar") {
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14 $param_subst=$param->getAttribute("subst");
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15 $param_value=$param->getAttribute("value");
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16 if ($param_subst) {
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17 /*
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18 $param_value=preg_replace("/name/", $name, $param_subst);
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19 $param_value=preg_replace('/lang/', $lang, $param_value);
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20 */
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21 }
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22 }
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23 elseif($param_type == "array") {
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24 $params=$param->getElementsByTagName("param");
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25 $param_value=array();
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26 foreach ($param->childNodes as $param) {
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27 if ($param->nodeType == XML_ELEMENT_NODE)
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28 {
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29 array_push($param_value, getParam($param));
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30 }
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31 }
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32 }
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33 return $param_value;
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34 }
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35
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36 function getFiles($doc, $options) {
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37 $lang = $options->getLang();
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38 $conf = $options->getName();
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39
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40 $toRemove = array();
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41
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42 $topLevelTags = $doc->getElementsByTagName("toplevel");
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43 foreach ($topLevelTags as $topLevel) {
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44 $topLevel->parentNode->removeChild($topLevel);
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45 }
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46
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47 $valueDict = array();
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48 $fragments = array();
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49 $setters = $doc->getElementsByTagName("set");
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50 foreach ($setters as $setTag) {
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51 $key = $setTag->getAttribute("id");
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52 $type = $setTag->getAttribute("type");
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53 if ($type == "fragment") {
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54 $fragments[$key] = $setTag;
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55 }
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56 else {
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57 $value = $setTag->getAttribute("value");
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58 if ($key && $value) {
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59 $valueDict[$key] = $value;
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60 }
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61 }
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62 //We need to iterate in the opposite direction when removing,
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63 //so best shifting.
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64 array_unshift($toRemove, $setTag);
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65 }
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66
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67 $params = $doc->getElementsByTagName("param");
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68 foreach ($params as $param) {
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69 if ($param->getAttribute("type")=="input_config") {
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70 $id = $param->getAttribute("id");
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71 if (array_key_exists($id, $valueDict)) {
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72 $value = $valueDict[$id];
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73 $tmp = new DOMDocument();
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74
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75 $tmp->loadXml("<xml>${value}</xml>");
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76 $parent = $param->parentNode;
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77 $parent->insertBefore(new DOMText($tmp->textContent), $param);
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78 //We need to iterate in the opposite direction when removing,
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79 //so best shifting.
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80 array_unshift($toRemove, $param);
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81 }
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82 elseif (array_key_exists($id, $fragments)) {
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83 $fragment = $fragments[$id];
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84
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85 $cloneFragment = $fragment->cloneNode(true);
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86 $insNode = $param;
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87 for ($i = $cloneFragment->childNodes->length - 1; $i >= 0; $i--) {
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88 $child = $cloneFragment->childNodes->item($i);
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89 $child = $child->parentNode->removeChild($child);
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90 $insNode = $insNode->parentNode->insertBefore($child, $insNode);
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91 }
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92
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93 //We need to iterate in the opposite direction when removing,
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94 //so best shifting.
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95 array_unshift($toRemove, $param);
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96 }
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97 }
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98 }
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99
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100 foreach($toRemove as $param) {
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101 $parent = $param->parentNode;
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102 $parent->removeChild($param);
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103 }
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104
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105 $body = getElementByTagName($doc,"body");
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106 $files = $body->getElementsByTagName("file");
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107
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108 $toRemove = array();
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109
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110 foreach ($files as $file) {
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111 $script=$file->getAttribute("script");
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112 if ($script) {
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113 $cacheable = false;
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114 $src="";
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115 $cwd = getcwd();
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116
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117 $matches=array();
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118 preg_match('/(.*\/)/', $script, $matches);
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119 $dirname=$matches[0];
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120 preg_match('/([^\/]*)$/', $script, $matches);
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121 $filename=$matches[0];
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122 chdir("${lang}/${dirname}");
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123 $pipe=popen("php ${filename}","r");
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124 $file_content = stream_get_contents($pipe);
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125 chdir("${cwd}");
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126 }
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127 else {
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128 $src = $file->getAttribute("src");
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129 $fname = $options->getBasePath() . "/${lang}/${src}";
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130 $file_content = $options->getCache()->loadFile($fname);
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131 }
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132 if(floatval($file_content)<0) {
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133 errorPage("Resource not found '${lang}/${src}'");
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134 }
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135
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136 $filters = $file->getElementsByTagName("filter");
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137 foreach($filters as $filter) {
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138 $func = $filter->getAttribute("function");
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139 $params = $filter->getElementsByTagName("param");
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140 $callString = "\$file_content = ${func}(\$file_content, \$options";
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141 $param_values = array();
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142 $i = 0;
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143 foreach ($filter->childNodes as $param) {
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144 if ($param->nodeType == XML_ELEMENT_NODE)
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145 {
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146 $param_value[$i] = getParam($param);
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147 $callString .= ",\$param_value[$i]";
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148 $i++;
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149 }
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150 }
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151 $callString .= ");";
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152 eval($callString);
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153 }
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154 $ndoc = new DOMDocument();
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155
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156 $ndoc->loadXml("<xml>${file_content}</xml>");
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157
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158 $parent = $file->parentNode;
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159 foreach ($ndoc->firstChild->childNodes as $child) {
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160 $clonedChild = $doc->importNode($child, true);
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161 $parent->insertBefore($clonedChild, $file);
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162 }
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163 //We need to iterate in the opposite direction when removing,
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164 //so best shifting.
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165 array_unshift($toRemove, $file);
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166 }
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167 foreach($toRemove as $param) {
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168 $parent = $param->parentNode;
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169 $parent->removeChild($param);
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170 }
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171
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172 return $doc;
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173 }
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174
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175 function getInput($master, $param, $options)
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176 {
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177 $lang = $options->getLang();
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178 $name = $param->getAttribute("id");
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179 $conf = $options->getName();
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180 if (!$conf)
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181 $conf = $param->getAttribute("default");
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182
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183 $confFile = $options->getBasePath() . "/${lang}/${conf}.xml";
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184 $options->getCache()->cache_time($confFile);
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185 $doc = new DOMDocument();
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186 $doc->load($confFile);
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187
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188 $toplevel = $doc->getElementsByTagName("toplevel");
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189
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190 if(! $toplevel->length) {
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191 errorPage("Resource '${conf}' is not available", 500);
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192 }
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193
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194 $includes = $doc->getElementsByTagName("include");
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195 $recurse = 0;
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196
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197 while($includes->length > 0) {
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198 if(++$recurse > MAX_RECURSE) {
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199 errorPage('Recursion limit exceeded', 500);
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200 }
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201 foreach ($includes as $include) {
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202 $src = $include->getAttribute("src");
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203 $subdoc = new DOMDocument();
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204 $subfile = $options->getBasePath() . "/${lang}/${src}";
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205 $subdoc->load("$subfile");
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206 $options->getCache()->cache_time($subfile);
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207 $parent = $include->parentNode;
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208 $xml = getElementByTagName($subdoc,"xml");
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209 foreach($xml->childNodes as $child) {
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210 $text = $subdoc->saveXml($child);
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211 $clonedChild = $doc->importNode($child,true);
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212 $parent->insertBefore($clonedChild,$include);
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213 }
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214 $parent->removeChild($include);
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215 }
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216 $includes = $doc->getElementsByTagName("include");
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217 }
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218
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219 return $doc;
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220 }
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221 ?>