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67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
#include "pugixml.hpp"
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#include <iostream>
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#include <cstring>
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int main()
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{
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// tag::decl[]
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const char source[] = "<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>";
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size_t size = sizeof(source);
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// end::decl[]
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pugi::xml_document doc;
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{
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// tag::load_buffer[]
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// You can use load_buffer to load document from immutable memory block:
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pugi::xml_parse_result result = doc.load_buffer(source, size);
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// end::load_buffer[]
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std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
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}
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{
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// tag::load_buffer_inplace_begin[]
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// You can use load_buffer_inplace to load document from mutable memory block; the block's lifetime must exceed that of document
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char* buffer = new char[size];
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memcpy(buffer, source, size);
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// The block can be allocated by any method; the block is modified during parsing
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pugi::xml_parse_result result = doc.load_buffer_inplace(buffer, size);
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// end::load_buffer_inplace_begin[]
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std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
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// tag::load_buffer_inplace_end[]
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// You have to destroy the block yourself after the document is no longer used
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delete[] buffer;
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// end::load_buffer_inplace_end[]
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}
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{
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// tag::load_buffer_inplace_own[]
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// You can use load_buffer_inplace_own to load document from mutable memory block and to pass the ownership of this block
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// The block has to be allocated via pugixml allocation function - using i.e. operator new here is incorrect
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char* buffer = static_cast<char*>(pugi::get_memory_allocation_function()(size));
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memcpy(buffer, source, size);
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// The block will be deleted by the document
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pugi::xml_parse_result result = doc.load_buffer_inplace_own(buffer, size);
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// end::load_buffer_inplace_own[]
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std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
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}
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{
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// tag::load_string[]
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// You can use load to load document from null-terminated strings, for example literals:
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pugi::xml_parse_result result = doc.load_string("<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>");
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// end::load_string[]
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std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl;
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}
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}
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// vim:et
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