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annotate dep/pugixml/docs/samples/include.cpp @ 307:8769c5d50b06

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pages/anime_list: don't call GUI functions in a non-GUI thread
author Paper <paper@paper.us.eu.org>
date Sun, 19 May 2024 18:25:14 -0400
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::code[]
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7 bool load_preprocess(pugi::xml_document& doc, const char* path);
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8
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9 bool preprocess(pugi::xml_node node)
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10 {
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11 for (pugi::xml_node child = node.first_child(); child; )
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12 {
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13 if (child.type() == pugi::node_pi && strcmp(child.name(), "include") == 0)
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14 {
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15 pugi::xml_node include = child;
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16
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17 // load new preprocessed document (note: ideally this should handle relative paths)
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18 const char* path = include.value();
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19
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20 pugi::xml_document doc;
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21 if (!load_preprocess(doc, path)) return false;
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22
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23 // insert the comment marker above include directive
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24 node.insert_child_before(pugi::node_comment, include).set_value(path);
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25
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26 // copy the document above the include directive (this retains the original order!)
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27 for (pugi::xml_node ic = doc.first_child(); ic; ic = ic.next_sibling())
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28 {
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29 node.insert_copy_before(ic, include);
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30 }
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31
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32 // remove the include node and move to the next child
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33 child = child.next_sibling();
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34
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35 node.remove_child(include);
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36 }
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37 else
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38 {
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39 if (!preprocess(child)) return false;
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40
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41 child = child.next_sibling();
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42 }
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43 }
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44
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45 return true;
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46 }
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47
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48 bool load_preprocess(pugi::xml_document& doc, const char* path)
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49 {
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50 pugi::xml_parse_result result = doc.load_file(path, pugi::parse_default | pugi::parse_pi); // for <?include?>
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51
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52 return result ? preprocess(doc) : false;
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53 }
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54 // end::code[]
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55
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56 int main()
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57 {
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58 pugi::xml_document doc;
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59 if (!load_preprocess(doc, "character.xml")) return -1;
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60
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61 doc.print(std::cout);
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62 }
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63
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64 // vim:et