view dep/pugixml/docs/samples/modify_base.cpp @ 187:9613d72b097e

*: 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
children
line wrap: on
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#include "pugixml.hpp"

#include <string.h>
#include <iostream>

int main()
{
    pugi::xml_document doc;
    if (!doc.load_string("<node id='123'>text</node><!-- comment -->", pugi::parse_default | pugi::parse_comments)) return -1;

    // tag::node[]
    pugi::xml_node node = doc.child("node");

    // change node name
    std::cout << node.set_name("notnode");
    std::cout << ", new node name: " << node.name() << std::endl;

    // change comment text
    std::cout << doc.last_child().set_value("useless comment");
    std::cout << ", new comment text: " << doc.last_child().value() << std::endl;

    // we can't change value of the element or name of the comment
    std::cout << node.set_value("1") << ", " << doc.last_child().set_name("2") << std::endl;
    // end::node[]

    // tag::attr[]
    pugi::xml_attribute attr = node.attribute("id");

    // change attribute name/value
    std::cout << attr.set_name("key") << ", " << attr.set_value("345");
    std::cout << ", new attribute: " << attr.name() << "=" << attr.value() << std::endl;

    // we can use numbers or booleans
    attr.set_value(1.234);
    std::cout << "new attribute value: " << attr.value() << std::endl;

    // we can also use assignment operators for more concise code
    attr = true;
    std::cout << "final attribute value: " << attr.value() << std::endl;
    // end::attr[]
}

// vim:et