如何将pugi :: char_t *转换为字符串 [英] How to convert pugi::char_t* to string

问题描述

您好
我使用pugixml来处理xml文件。我使用这个结构遍历节点

Hi I'm using pugixml to process xml documents. I iterate through nodes using this construction

 pugi::xml_node tools = doc.child("settings");

    //[code_traverse_iter
    for (pugi::xml_node_iterator it = tools.begin(); it != tools.end(); ++it)
    {
        //std::cout << "Tool:";
        cout <<it->name();

    }

问题是it-> name（）返回pugi :: char_t *，我需要将其转换为std :: string。是否可以 ？？我在pugixml网站上找不到任何信息

the problem is that it->name() returns pugi::char_t* and I need to convert it into std::string. Is it possible ?? I can't find any information on pugixml website

推荐答案

根据手册， pugi :: char_t 是 char 或 wchar_t ，具体取决于您的库配置。这是为了可以在单字节（ASCII或UTF-8）和双字节（通常为UTF-16/32）之间切换。

According to the manual, pugi::char_t is either char or wchar_t, depending on your library configuration. This is so that you can switch between single bytes (ASCII or UTF-8) and double bytes (usually UTF-16/32).

需要改变它到任何东西。但是，如果您使用 wchar_t * 变体，则必须使用匹配的流对象：

This means you don't need to change it to anything. However, if you're using the wchar_t* variant, you will have to use the matching stream object:

#ifdef PUGIXML_WCHAR_MODE
std::wcout << it->name();
#else
std::cout << it->name();
#endif

因为你问，构造一个 std :: string 或 std :: wstring ：

And, since you asked, to construct a std::string or std::wstring from it:

#ifdef PUGIXML_WCHAR_MODE
std::wstring str = it->name();
#else
std::string str = it->name();
#endif

或者，总是 std :: string （这很少是你想要的！）：

#ifdef PUGIXML_WCHAR_MODE
std::string str = as_utf8(it->name());
#else
std::string str = it->name();
#endif

希望这有帮助。

^{资料来源：粗略浏览pugixml文档。}

^{Source: A cursory glance at the "pugixml" documentation.}

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