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annotate dep/pugixml/docs/samples/xpath_variables.cpp @ 187:9613d72b097e

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*: multiple performance improvements like marking `static const` when it makes sense... date: change old stupid heap-based method to a structure which should make copying the thing actually make a copy. also many performance-based changes, like removing the std::tie dependency and forward-declaring nlohmann json *: replace every instance of QString::fromUtf8 to Strings::ToQString. the main difference is that our function will always convert exactly what is in the string, while some other times it would only convert up to the nearest NUL byte
author Paper <mrpapersonic@gmail.com>
date Wed, 06 Dec 2023 13:43:54 -0500
parents d10b6c6b432e
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1 #include "pugixml.hpp"
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2
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3 #include <iostream>
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4 #include <string>
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5
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6 int main()
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7 {
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8 pugi::xml_document doc;
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9 if (!doc.load_file("xgconsole.xml")) return -1;
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10
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11 // tag::code[]
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12 // Select nodes via compiled query
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13 pugi::xpath_variable_set vars;
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14 vars.add("remote", pugi::xpath_type_boolean);
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16 pugi::xpath_query query_remote_tools("/Profile/Tools/Tool[@AllowRemote = string($remote)]", &vars);
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18 vars.set("remote", true);
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19 pugi::xpath_node_set tools_remote = query_remote_tools.evaluate_node_set(doc);
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20
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21 vars.set("remote", false);
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22 pugi::xpath_node_set tools_local = query_remote_tools.evaluate_node_set(doc);
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23
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24 std::cout << "Remote tool: ";
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25 tools_remote[2].node().print(std::cout);
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27 std::cout << "Local tool: ";
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28 tools_local[0].node().print(std::cout);
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29
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30 // You can pass the context directly to select_nodes/select_node
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31 pugi::xpath_node_set tools_local_imm = doc.select_nodes("/Profile/Tools/Tool[@AllowRemote = string($remote)]", &vars);
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32
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33 std::cout << "Local tool imm: ";
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34 tools_local_imm[0].node().print(std::cout);
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35 // end::code[]
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36 }
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37
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38 // vim:et