--- /dev/null
+/* $Id: router_flexml.hpp,v 1.1 2005-10-26 14:12:00 marc Exp $
+ Copyright (c) 2005, Index Data.
+
+%LICENSE%
+ */
+
+#include <iostream>
+#include <stdexcept>
+
+#include <libxml/xmlversion.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xmlIO.h>
+#include <libxml/xmlreader.h>
+//#include <libxslt/transform.h>
+
+namespace yp2
+{
+
+
+class RouterFleXML
+{
+public:
+ RouterFleXML(std::string xmlconf)
+ : m_xmlconf(""), m_xinclude(false), m_xmlconf_doc(0)
+ {
+ LIBXML_TEST_VERSION;
+
+ m_xmlconf = xmlconf;
+ m_xinclude = false;
+
+ m_xmlconf_doc
+ = xmlParseMemory(m_xmlconf.c_str(), m_xmlconf.size());
+
+ parse_xml_config_dom();
+ //parse_xml_config_xmlreader();
+ }
+ ~RouterFleXML()
+ {
+ xmlFreeDoc(m_xmlconf_doc);
+ }
+
+
+private:
+ std::string m_xmlconf;
+ bool m_xinclude;
+ xmlDoc * m_xmlconf_doc;
+
+ void xml_dom_error ( xmlNode* node, std::string msg)
+ {
+ std::cerr << "ERROR: " << msg << " "
+ << node->name << " "
+ << std::endl;
+ }
+
+ void parse_xml_config_dom() {
+ if (m_xmlconf_doc)
+ {
+ xmlNode* root = xmlDocGetRootElement(m_xmlconf_doc);
+
+ if (std::string((const char *) root->name) != "yp2")
+ xml_dom_error(root, "expected <yp2>, got ");
+
+
+ for (const struct _xmlAttr *attr = root->properties; attr; attr = attr->next)
+ {
+ if (std::string((const char *)attr->name) == "xmlns")
+ {
+ const xmlNode *val = attr->children;
+ //BOOST_CHECK_EQUAL(val->type, XML_TEXT_NODE);
+ if (std::string((const char *)val->content)
+ != "http://indexdata.dk/yp2/config/1")
+ xml_dom_error(root,
+ "expected xmlns=\"http://indexdata.dk/yp2/config/1\", got ");
+ }
+ }
+ std::cout << "GOT HERE" << std::endl;
+
+ }
+ }
+
+
+#if 0
+ void parse_xml_config_xmlreader() {
+
+ xmlTextReader* reader;
+ //reader->SetParserProp(libxml2.PARSER_SUBST_ENTITIES,1);
+ int ret;
+ //reader = xmlReaderForFile(m_xmlconf.c_str(), NULL, 0);
+ reader = xmlReaderWalker(m_xmlconf_doc);
+
+ if (reader == NULL) {
+ std::cerr << "failed to read XML config file "
+ << std::endl
+ << m_xmlconf << std::endl;
+ std::exit(1);
+ }
+
+
+ // root element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("yp2") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "root element must be named <yp2>");
+
+ std::cout << "<" << xmlTextReaderConstName(reader);
+
+ //if (xmlTextReaderHasAttributes(reader))
+ //if ((!xmlTextReaderMoveToAttributeNs(reader, NULL,
+ // (const xmlChar*)"http://indexdata.dk/yp2/config/1" )))
+ if ((!xmlTextReaderMoveToFirstAttribute(reader))
+ || (! xmlTextReaderIsNamespaceDecl(reader))
+ || (std::string("http://indexdata.dk/yp2/config/1")
+ != (const char*)xmlTextReaderConstValue(reader)))
+ xml_error(reader, "expected root element <yp2> in namespace "
+ "'http://indexdata.dk/yp2/config/1'");
+
+ std::cout << " " << xmlTextReaderConstName(reader) << "=\""
+ << xmlTextReaderConstValue(reader) << "\">"
+ //<< xmlTextReaderIsNamespaceDecl(reader)
+ << std::endl;
+
+
+ // start element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("start") != (const char*)xmlTextReaderConstName(reader)
+ || !xmlTextReaderMoveToFirstAttribute(reader)
+ || std::string("route") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "start element <start route=\"route_id\"/> expected");
+
+ std::cout << "<start " << xmlTextReaderConstName(reader) << "=\""
+ << xmlTextReaderConstValue(reader) << "\"/>" << std::endl;
+ //<< xmlTextReaderGetAttribute(reader, (const xmlChar *)"route")
+
+
+ // filters element processing
+ xml_progress_flat_to_element(reader);
+
+ if (std::string("filters") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "filters element <filters> expected");
+
+ std::cout << "<filters>" << std::endl;
+
+
+ // filter element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("filter") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "filter element <filter id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+
+ while (std::string("filter") == (const char*)xmlTextReaderConstName(reader)){
+ std::string filter_id;
+ std::string filter_type;
+ if (!xmlTextReaderMoveToFirstAttribute(reader)
+ || std::string("id") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "filter element <filter id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+ filter_id = (const char*)xmlTextReaderConstValue(reader);
+ if (!xmlTextReaderMoveToNextAttribute(reader)
+ || std::string("type") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "filter element <filter id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+ filter_type = (const char*)xmlTextReaderConstValue(reader);
+ std::cout << "<filter id=\"" << filter_id
+ << "\" type=\"" << filter_type << "\"/>"
+ << std::endl;
+ xml_progress_flat_to_element(reader);
+ }
+
+ std::cout << "</filters>" << std::endl;
+
+
+ // routes element processing
+ // xml_progress_flat_to_element(reader);
+ if (std::string("routes") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "routes element <routes> expected");
+
+ std::cout << "<routes>" << std::endl;
+ // route element processing
+ xml_progress_deep_to_element(reader);
+ if (std::string("route") != (const char*)xmlTextReaderConstName(reader)
+ )
+ xml_error(reader, "route element <route id=\"some_id\" "
+ "type=\"some_type\"/> expected");
+ while (std::string("route") == (const char*)xmlTextReaderConstName(reader)){
+ std::string route_id;
+ if (!xmlTextReaderMoveToFirstAttribute(reader)
+ || std::string("id") != (const char*)xmlTextReaderConstName(reader))
+ xml_error(reader, "route element <route id=\"some_id\"/> expected");
+ route_id = (const char*)xmlTextReaderConstValue(reader);
+
+
+ std::cout << "<route id=\"" << route_id << "\">" << std::endl;
+ std::cout << "</route>" << std::endl;
+ xml_progress_flat_to_element(reader);
+ }
+
+ std::cout << "</routes>" << std::endl;
+
+ std::cout << "</yp2>" << std::endl;
+
+ xml_debug_print(reader);
+
+
+ // freeing C xml reader libs
+ xmlFreeTextReader(reader);
+ if (ret != 0) {
+ std::cerr << "Parsing failed of XML configuration"
+ << std::endl
+ << m_xmlconf << std::endl;
+ std::exit(1);
+ }
+ }
+
+ void xml_error ( xmlTextReader* reader, std::string msg)
+ {
+ std::cerr << "ERROR: " << msg << " "
+ << xmlTextReaderGetParserLineNumber(reader) << ":"
+ << xmlTextReaderGetParserColumnNumber(reader) << " "
+ << xmlTextReaderConstName(reader) << " "
+ << xmlTextReaderDepth(reader) << " "
+ << xmlTextReaderNodeType(reader) << std::endl;
+ }
+
+ void xml_debug_print ( xmlTextReader* reader)
+ {
+ // processing all other elements
+ //while (xmlTextReaderMoveToElement(reader)) // reads next element ??
+ //while (xmlTextReaderNext(reader)) //does not descend, keeps level
+ while (xmlTextReaderRead(reader)) // descends into all subtree nodes
+ std::cout << xmlTextReaderGetParserLineNumber(reader) << ":"
+ << xmlTextReaderGetParserColumnNumber(reader) << " "
+ << xmlTextReaderDepth(reader) << " "
+ << xmlTextReaderNodeType(reader) << " "
+ << "ConstName " << xmlTextReaderConstName(reader) << " "
+ << std::endl;
+ }
+
+ bool xml_progress_deep_to_element(xmlTextReader* reader)
+ {
+ bool ret = false;
+ while(xmlTextReaderRead(reader)
+ && xmlTextReaderNodeType(reader) != XML_ELEMENT_NODE
+ && !( xmlTextReaderNodeType(reader)
+ == XML_READER_TYPE_END_ELEMENT
+ && 0 == xmlTextReaderDepth(reader))
+ )
+ ret = true;
+ return ret;
+ }
+
+ bool xml_progress_flat_to_element(xmlTextReader* reader)
+ {
+ bool ret = false;
+
+ while(xmlTextReaderNext(reader)
+ && xmlTextReaderNodeType(reader) != XML_ELEMENT_NODE
+ && !( xmlTextReaderNodeType(reader)
+ == XML_READER_TYPE_END_ELEMENT
+ && 0 == xmlTextReaderDepth(reader))
+ ) {
+ ret = true;
+ }
+ return ret;
+ }
+
+#endif
+
+};
+
+};
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * c-file-style: "stroustrup"
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */