问题
Given a valid, arbitrary xmlNodePtr, I would like the string representation of that node, including the tag, attributes, and children in the same form (recursive).
FWIW, my scenario is I am using PerformXPathQuery to get a block of data from within an existing document. I need to get the results of the query, which has nested XML elements in it, as the raw string, so I can insert it into a text field.
These seems like a simple task, however I cannot find an easy way. Writing an xmlDocPtr to file must do this, however, I cannot see a handy method that will do the same thing to an arbitrary node in the tree, and return it in memory.
I hope I am just going blind from the brown-on-brown documentation color scheme at xmlsoft.org
回答1:
Is xmlNodeDump (or xmlNodeDumpOutput) what you are looking for?
回答2:
My code I used to dump a node to a string. It's objectiv-c so just change your output as needed.
xmlBufferPtr buffer = xmlBufferCreate();
int size = xmlNodeDump(buffer, myXMLDoc, myXMLNode, 0, 1);
NSLog(@"%d", size);
NSLog(@"%s", buffer->content);
Don't forget to free your buffer again.
回答3:
One way you could do it definitely is to create a new document, then use xmlDocCopyNode to copy the node into it and serialize it.
来源：https://stackoverflow.com/questions/8232094/libxml-xmlnodeptr-to-raw-xml-string