使用pugixml为不同的输入映射节点名称 [英] Map node names using pugixml for different inputs

问题描述

我的程序使用 pugixml 从文件中输出XML节点。这是这样做的代码位：

My program spits out XML nodes from a file using pugixml. This is the bit of the code which does this:

for (auto& ea: mapa) {
    std::cout << "Removed:" << std::endl;
    ea.second.print(std::cout);
}

for (auto& eb: mapb) {
    std::cout << "Added:" << std::endl;
    eb.second.print(std::cout);
}

所有节点都应该有这种格式（例如filea.xml）：

All nodes spat out should have this format (for example filea.xml):

<entry>
    <id><![CDATA[9]]></id>
    <description><![CDATA[Dolce 27 Speed]]></description>
 </entry>

但是什么是输出取决于输入数据的格式。有时标签被称为不同的东西，我可以结束这个（例如fileb.xml）：

However what is spat out depends on how the input data is formatted. Sometimes the tags are called different things and I could end up with this (for example fileb.xml):

<entry>
    <id><![CDATA[9]]></id>
    <mycontent><![CDATA[Dolce 27 Speed]]></mycontent>
 </entry>

可能的解决方案

定义非标准映射（节点名称），这样，无论输入文件上的节点名称是什么，我总是std：cout它以相同的格式（ id 和 description

Possible solution

Is it possible to define non standard mappings (names of nodes) so that, no matter what the names of the nodes are on the input file, I always std:cout it in the same format (id and description)

似乎答案是基于以下代码：

It seems like the answer is based on this code:

  description = mycontent; // Define any non-standard maps
  std::cout << node.set_name("notnode");
  std::cout << ", new node name: " << node.name() << std::endl;

我是C ++的新手，所以任何建议如何实现这将不胜感激。我必须在数万个字段上运行此操作，所以性能是关键。

I'm new to C++ so any suggestions on how to implement this would be appreciated. I have to run this on tens of thousands of fields so performance is key.

https://pugixml.googlecode.com/svn/tags/latest/docs/ manual / modify.html
https： //pugixml.googlecode.com/svn/tags/latest/docs/samples/modify_base.cpp

推荐答案

也许这样的东西是你要找的？

Maybe something like this will is what you're looking for?

#include <map>
#include <string>
#include <iostream>

#include "pugixml.hpp"

using namespace pugi;

int main()
{
    // tag mappings
    const std::map<std::string, std::string> tagmaps
    {
          {"odd-id-tag1", "id"}
        , {"odd-id-tag2", "id"}
        , {"odd-desc-tag1", "description"}
        , {"odd-desc-tag2", "description"}
    };

    // working registers
    std::map<std::string, std::string>::const_iterator found;

    // loop through the nodes n here
    for(auto&& n: nodes)
    {
        // change node name if mapping found
        if((found = tagmaps.find(n.name())) != tagmaps.end())
            n.set_name(found->second.c_str());
    }
}

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