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annotate dep/pugixml/docs/samples/traverse_predicate.cpp @ 198:bc1ae1810855

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dep/animia: switch from using classes to global functions the old idea was ok, but sort of hackish; this method doesn't use classes at all, and this way (especially important!) we can do wayland stuff AND x11 at the same time, which wasn't really possible without stupid workarounds in the other method
author Paper <mrpapersonic@gmail.com>
date Sun, 24 Dec 2023 02:59:42 -0500
parents d10b6c6b432e
children
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1 #include "pugixml.hpp"
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2
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3 #include <string.h>
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4 #include <iostream>
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5
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6 // tag::decl[]
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7 bool small_timeout(pugi::xml_node node)
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8 {
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9 return node.attribute("Timeout").as_int() < 20;
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10 }
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11
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12 struct allow_remote_predicate
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13 {
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14 bool operator()(pugi::xml_attribute attr) const
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15 {
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16 return strcmp(attr.name(), "AllowRemote") == 0;
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17 }
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18
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19 bool operator()(pugi::xml_node node) const
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20 {
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21 return node.attribute("AllowRemote").as_bool();
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22 }
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23 };
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24 // end::decl[]
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25
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26 int main()
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27 {
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28 pugi::xml_document doc;
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29 if (!doc.load_file("xgconsole.xml")) return -1;
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30
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31 pugi::xml_node tools = doc.child("Profile").child("Tools");
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32
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33 // tag::find[]
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34 // Find child via predicate (looks for direct children only)
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35 std::cout << tools.find_child(allow_remote_predicate()).attribute("Filename").value() << std::endl;
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36
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37 // Find node via predicate (looks for all descendants in depth-first order)
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38 std::cout << doc.find_node(allow_remote_predicate()).attribute("Filename").value() << std::endl;
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39
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40 // Find attribute via predicate
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41 std::cout << tools.last_child().find_attribute(allow_remote_predicate()).value() << std::endl;
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42
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43 // We can use simple functions instead of function objects
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44 std::cout << tools.find_child(small_timeout).attribute("Filename").value() << std::endl;
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45 // end::find[]
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46 }
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47
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48 // vim:et