Move code generator to tools subdirectory for higher consistency with OSS standards

tools/xml2cpp-codegen/xml.h

@@ -0,0 +1,113 @@
+/**
+ * Inspired by: http://dbus-cplusplus.sourceforge.net/
+ */
+
+#ifndef __SDBUSCPP_TOOLS_XML_H
+#define __SDBUSCPP_TOOLS_XML_H
+
+
+#include <exception>
+#include <string>
+#include <vector>
+#include <map>
+#include <memory>
+#include <iostream>
+#include <sstream>
+
+namespace sdbuscpp
+{
+namespace xml
+{
+
+class Error : public std::exception
+{
+public:
+
+    Error(const char *error, int line, int column);
+
+    ~Error() {}
+
+    const char *what() const noexcept { return m_error.c_str(); }
+
+private:
+    std::string m_error;
+};
+
+
+class Node;
+
+class Nodes : public std::vector<Node *>
+{
+public:
+    Nodes operator[](const std::string &key) const;
+    Nodes select(const std::string &attr, const std::string &value) const;
+};
+
+class Node
+{
+public:
+
+        using Attributes = std::map<std::string, std::string>;
+        using Children = std::vector<Node>;
+
+        std::string name;
+        std::string cdata;
+        Children children;
+
+        Node(std::string n, Attributes a) :
+            name(n),
+            m_attrs(a)
+        {}
+
+        Node(const char* n, const char** a = nullptr);
+
+        Nodes operator[](const std::string& key);
+
+        std::string get(const std::string& attribute) const;
+
+        void set(const std::string &attribute, std::string value);
+
+        std::string to_xml() const;
+
+        Node& add(Node child)
+        {
+            children.push_back(child);
+            return children.back();
+        }
+
+private:
+
+        void _raw_xml(std::string& xml, int& depth) const;
+
+        Attributes m_attrs;
+};
+
+class Document
+{
+public:
+        struct Expat;
+
+        Node* root;
+
+        Document();
+        ~Document();
+
+        Document(const std::string& xml);
+
+        void from_xml(const std::string& xml);
+
+        std::string to_xml() const;
+
+private:
+
+        int m_depth;
+};
+
+} // namespace xml
+
+} // namespace sdbuscpp
+
+std::istream &operator >> (std::istream &, sdbuscpp::xml::Document &);
+std::ostream &operator << (std::ostream &, sdbuscpp::xml::Document &);
+
+#endif//__SDBUSCPP_TOOLS_XML_H