Created
May 31, 2013 18:49
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this is how libxml++ should look like
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| #include <iostream> | |
| #include <libxml/parser.h> | |
| #include <libxml/tree.h> | |
| #include <libxml/HTMLtree.h> | |
| struct xml_attribute | |
| { | |
| xmlNodePtr node_; | |
| std::string key_; | |
| xml_attribute(xmlNodePtr node, std::string const & key) | |
| : node_(node) | |
| , key_(key) | |
| { | |
| } | |
| xml_attribute & operator=(std::string const & value) | |
| { | |
| xmlNewProp(node_, reinterpret_cast<const xmlChar *>(key_.c_str()), reinterpret_cast<const xmlChar *>(value.c_str())); | |
| return *this; | |
| } | |
| }; | |
| struct dom_element | |
| { | |
| xmlNodePtr node_; | |
| dom_element(const char * element_name) | |
| : node_(xmlNewNode(NULL, reinterpret_cast<const xmlChar *>(element_name))) | |
| { | |
| if (!node_) | |
| { | |
| throw std::bad_alloc(); | |
| } | |
| } | |
| dom_element(dom_element const & x) | |
| : node_(xmlCopyNode(x.node_, 1)) | |
| { | |
| } | |
| ~dom_element() | |
| { | |
| if (node_) | |
| xmlFreeNode(node_); | |
| } | |
| void addChild(dom_element el) | |
| { | |
| xmlAddChild(node_, el.node_); | |
| el.node_ = NULL; | |
| } | |
| xml_attribute operator[](std::string const & key) | |
| { | |
| return xml_attribute(node_, key); | |
| } | |
| }; | |
| struct document | |
| { | |
| xmlDocPtr doc_; | |
| bool isHTML5_; | |
| document(bool isHTML5 = true) | |
| : doc_(xmlNewDoc(NULL)) | |
| , isHTML5_(isHTML5) | |
| { | |
| if (!doc_) | |
| { | |
| throw std::bad_alloc(); | |
| } | |
| } | |
| document(document const & doc) | |
| : doc_(xmlCopyDocument(doc.doc_)) | |
| , isHTML5_(doc.isHTML5_) | |
| { | |
| } | |
| ~document() | |
| { | |
| xmlFreeDoc(doc_); | |
| } | |
| friend std::ostream & operator<<(std::ostream & lhs, document const & doc) | |
| { | |
| if (doc.isHTML5_) | |
| { | |
| lhs << "<!doctype html>" << std::endl; | |
| } | |
| xmlChar * xmlbuff = NULL; | |
| int buffersize = 0; | |
| htmlDocDumpMemory(doc.doc_, &xmlbuff, &buffersize); | |
| try | |
| { | |
| lhs << reinterpret_cast<char *>(xmlbuff); | |
| xmlFree(xmlbuff); | |
| } catch (...) | |
| { | |
| xmlFree(xmlbuff); | |
| throw; | |
| } | |
| return lhs; | |
| } | |
| void addChild(dom_element el) | |
| { | |
| xmlDocSetRootElement(doc_, el.node_); | |
| el.node_ = NULL; | |
| } | |
| }; | |
| int | |
| main() | |
| { | |
| document doc; | |
| dom_element html("html"); | |
| html["lang"] = "en"; | |
| dom_element head("head"); | |
| head.addChild(dom_element("title")); | |
| html.addChild(head); | |
| html.addChild(dom_element("body")); | |
| doc.addChild(html); | |
| std::cout << doc << std::endl; | |
| } |
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