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6 | "use strict";
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7 |
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8 | const createHash = require("./util/createHash");
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9 |
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10 | const ModuleFilenameHelpers = exports;
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11 |
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12 | ModuleFilenameHelpers.ALL_LOADERS_RESOURCE = "[all-loaders][resource]";
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13 | ModuleFilenameHelpers.REGEXP_ALL_LOADERS_RESOURCE = /\[all-?loaders\]\[resource\]/gi;
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14 | ModuleFilenameHelpers.LOADERS_RESOURCE = "[loaders][resource]";
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15 | ModuleFilenameHelpers.REGEXP_LOADERS_RESOURCE = /\[loaders\]\[resource\]/gi;
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16 | ModuleFilenameHelpers.RESOURCE = "[resource]";
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17 | ModuleFilenameHelpers.REGEXP_RESOURCE = /\[resource\]/gi;
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18 | ModuleFilenameHelpers.ABSOLUTE_RESOURCE_PATH = "[absolute-resource-path]";
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19 |
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20 | ModuleFilenameHelpers.REGEXP_ABSOLUTE_RESOURCE_PATH = /\[abs(olute)?-?resource-?path\]/gi;
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21 | ModuleFilenameHelpers.RESOURCE_PATH = "[resource-path]";
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22 | ModuleFilenameHelpers.REGEXP_RESOURCE_PATH = /\[resource-?path\]/gi;
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23 | ModuleFilenameHelpers.ALL_LOADERS = "[all-loaders]";
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24 | ModuleFilenameHelpers.REGEXP_ALL_LOADERS = /\[all-?loaders\]/gi;
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25 | ModuleFilenameHelpers.LOADERS = "[loaders]";
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26 | ModuleFilenameHelpers.REGEXP_LOADERS = /\[loaders\]/gi;
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27 | ModuleFilenameHelpers.QUERY = "[query]";
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28 | ModuleFilenameHelpers.REGEXP_QUERY = /\[query\]/gi;
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29 | ModuleFilenameHelpers.ID = "[id]";
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30 | ModuleFilenameHelpers.REGEXP_ID = /\[id\]/gi;
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31 | ModuleFilenameHelpers.HASH = "[hash]";
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32 | ModuleFilenameHelpers.REGEXP_HASH = /\[hash\]/gi;
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33 | ModuleFilenameHelpers.NAMESPACE = "[namespace]";
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34 | ModuleFilenameHelpers.REGEXP_NAMESPACE = /\[namespace\]/gi;
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35 |
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36 | const getAfter = (str, token) => {
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37 | const idx = str.indexOf(token);
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38 | return idx < 0 ? "" : str.substr(idx);
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39 | };
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40 |
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41 | const getBefore = (str, token) => {
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42 | const idx = str.lastIndexOf(token);
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43 | return idx < 0 ? "" : str.substr(0, idx);
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44 | };
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45 |
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46 | const getHash = str => {
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47 | const hash = createHash("md4");
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48 | hash.update(str);
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49 | const digest = (hash.digest("hex"));
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50 | return digest.substr(0, 4);
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51 | };
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52 |
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53 | const asRegExp = test => {
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54 | if (typeof test === "string") {
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55 | test = new RegExp("^" + test.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&"));
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56 | }
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57 | return test;
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58 | };
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59 |
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60 | ModuleFilenameHelpers.createFilename = (
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61 | module,
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62 | options,
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63 | { requestShortener, chunkGraph }
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64 | ) => {
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65 | const opts = {
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66 | namespace: "",
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67 | moduleFilenameTemplate: "",
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68 | ...(typeof options === "object"
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69 | ? options
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70 | : {
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71 | moduleFilenameTemplate: options
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72 | })
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73 | };
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74 |
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75 | let absoluteResourcePath;
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76 | let hash;
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77 | let identifier;
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78 | let moduleId;
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79 | let shortIdentifier;
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80 | if (module === undefined) module = "";
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81 | if (typeof module === "string") {
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82 | shortIdentifier = requestShortener.shorten(module);
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83 | identifier = shortIdentifier;
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84 | moduleId = "";
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85 | absoluteResourcePath = module.split("!").pop();
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86 | hash = getHash(identifier);
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87 | } else {
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88 | shortIdentifier = module.readableIdentifier(requestShortener);
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89 | identifier = requestShortener.shorten(module.identifier());
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90 | moduleId = chunkGraph.getModuleId(module);
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91 | absoluteResourcePath = module.identifier().split("!").pop();
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92 | hash = getHash(identifier);
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93 | }
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94 | const resource = shortIdentifier.split("!").pop();
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95 | const loaders = getBefore(shortIdentifier, "!");
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96 | const allLoaders = getBefore(identifier, "!");
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97 | const query = getAfter(resource, "?");
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98 | const resourcePath = resource.substr(0, resource.length - query.length);
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99 | if (typeof opts.moduleFilenameTemplate === "function") {
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100 | return opts.moduleFilenameTemplate({
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101 | identifier: identifier,
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102 | shortIdentifier: shortIdentifier,
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103 | resource: resource,
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104 | resourcePath: resourcePath,
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105 | absoluteResourcePath: absoluteResourcePath,
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106 | allLoaders: allLoaders,
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107 | query: query,
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108 | moduleId: moduleId,
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109 | hash: hash,
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110 | namespace: opts.namespace
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111 | });
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112 | }
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113 | return opts.moduleFilenameTemplate
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114 | .replace(ModuleFilenameHelpers.REGEXP_ALL_LOADERS_RESOURCE, identifier)
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115 | .replace(ModuleFilenameHelpers.REGEXP_LOADERS_RESOURCE, shortIdentifier)
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116 | .replace(ModuleFilenameHelpers.REGEXP_RESOURCE, resource)
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117 | .replace(ModuleFilenameHelpers.REGEXP_RESOURCE_PATH, resourcePath)
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118 | .replace(
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119 | ModuleFilenameHelpers.REGEXP_ABSOLUTE_RESOURCE_PATH,
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120 | absoluteResourcePath
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121 | )
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122 | .replace(ModuleFilenameHelpers.REGEXP_ALL_LOADERS, allLoaders)
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123 | .replace(ModuleFilenameHelpers.REGEXP_LOADERS, loaders)
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124 | .replace(ModuleFilenameHelpers.REGEXP_QUERY, query)
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125 | .replace(ModuleFilenameHelpers.REGEXP_ID, moduleId)
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126 | .replace(ModuleFilenameHelpers.REGEXP_HASH, hash)
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127 | .replace(ModuleFilenameHelpers.REGEXP_NAMESPACE, opts.namespace);
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128 | };
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129 |
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130 | ModuleFilenameHelpers.replaceDuplicates = (array, fn, comparator) => {
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131 | const countMap = Object.create(null);
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132 | const posMap = Object.create(null);
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133 | array.forEach((item, idx) => {
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134 | countMap[item] = countMap[item] || [];
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135 | countMap[item].push(idx);
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136 | posMap[item] = 0;
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137 | });
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138 | if (comparator) {
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139 | Object.keys(countMap).forEach(item => {
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140 | countMap[item].sort(comparator);
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141 | });
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142 | }
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143 | return array.map((item, i) => {
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144 | if (countMap[item].length > 1) {
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145 | if (comparator && countMap[item][0] === i) return item;
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146 | return fn(item, i, posMap[item]++);
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147 | } else {
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148 | return item;
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149 | }
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150 | });
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151 | };
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152 |
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153 | ModuleFilenameHelpers.matchPart = (str, test) => {
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154 | if (!test) return true;
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155 | test = asRegExp(test);
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156 | if (Array.isArray(test)) {
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157 | return test.map(asRegExp).some(regExp => regExp.test(str));
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158 | } else {
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159 | return test.test(str);
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160 | }
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161 | };
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162 |
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163 | ModuleFilenameHelpers.matchObject = (obj, str) => {
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164 | if (obj.test) {
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165 | if (!ModuleFilenameHelpers.matchPart(str, obj.test)) {
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166 | return false;
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167 | }
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168 | }
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169 | if (obj.include) {
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170 | if (!ModuleFilenameHelpers.matchPart(str, obj.include)) {
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171 | return false;
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172 | }
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173 | }
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174 | if (obj.exclude) {
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175 | if (ModuleFilenameHelpers.matchPart(str, obj.exclude)) {
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176 | return false;
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177 | }
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178 | }
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179 | return true;
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180 | };
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