Pugixml-使用前缀映射和不带前缀mappig解析名称空间 [英] Pugixml - parse namespace with prefix mapping and without prefix mappig
问题描述
我有一个客户端应用程序,该应用程序解析从2个不同服务器发送的xml响应.我称它们为服务器A和服务器B.
I have a client application that parses xml responses that are sent from 2 different servers. I call them server A and server B.
服务器A响应以下请求之一:
Server A responds to one of the request with a response as below:
<?xml version="1.0" encoding="UTF-8"?>
<D:multistatus xmlns:D="DAV:">
<D:response>
<D:href>/T12.txt</D:href>
<D:propstat>
<D:prop>
<local-modification-time xmlns="urn:abc.com:webdrive">1389692809</local-modification-time>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
</D:multistatus>
服务器B对请求之一的响应如下:
Server B responds to one of the request with a response as below:
<?xml version="1.0" encoding="UTF-8"?>
<D:multistatus xmlns:D="DAV:">
<D:response>
<D:href>/T12.txt</D:href>
<D:propstat>
<D:prop>
<O:local-modification-time xmlns:O="urn:abc.com:webdrive">1389692809</O:local-modification-time>
</D:prop>
<D:status>HTTP/1.1 200 OK</D:status>
</D:propstat>
</D:response>
</D:multistatus>
如果您观察到两个服务器之间的差异,则serverA不会发送名称空间和前缀之间的映射,而serverB会发送(请查看local-modification-time标签).如何编写通用的客户端解析逻辑,以通用方式处理这两种情况.任何示例代码都会有很大帮助.
If you observer the difference between the two servers, serverA does not send a mapping between namespace and prefix, but serverB does (look at local-modification-time tag). How can I write a generic client parsing logic, to handle both these scenarios generically. Any sample code would be of great help.
谢谢,-山地
推荐答案
我认为最好的选择是忽略命名空间,并通过本地名称查找节点.您可以使用XPath这样操作:
I think your best bet is to just ignore namespaces and find the node by local name. You can do it with XPath like this:
node.select_single_node(".[local-name()='local-modification-time']")
或者您也可以像这样使用C ++:
Or you can just use C++ like this:
pugi::xml_node child_by_local_name(pugi::xml_node node, const char* name)
{
for (pugi::xml_node child = node.first_child(); child; child = child.next_sibling())
{
if (strcmp(child.name(), name) == 0)
return child;
const char* colon = strchr(child.name(), ':');
if (colon && strcmp(colon + 1, name) == 0)
return child;
}
return pugi::xml_node();
}
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