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Diffstat (limited to 'libxsd/libxsd/cxx/tree/elements.hxx')
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diff --git a/libxsd/libxsd/cxx/tree/elements.hxx b/libxsd/libxsd/cxx/tree/elements.hxx new file mode 100644 index 0000000..7eb8211 --- /dev/null +++ b/libxsd/libxsd/cxx/tree/elements.hxx @@ -0,0 +1,1867 @@ +// file : libxsd/cxx/tree/elements.hxx +// license : GNU GPL v2 + exceptions; see accompanying LICENSE file + +/** + * @file + * + * @brief Contains C++ class definitions for XML Schema anyType and + * anySimpleType types as well as supporting code. + * + * This is an internal header and is included by the generated code. You + * normally should not include it directly. + * + */ + +#ifndef LIBXSD_CXX_TREE_ELEMENTS_HXX +#define LIBXSD_CXX_TREE_ELEMENTS_HXX + +#include <libxsd/cxx/config.hxx> // XSD_AUTO_PTR, XSD_CXX11 + +#include <map> +#include <string> +#include <memory> // std::auto_ptr/unique_ptr +#include <cstddef> // std::size_t +#include <istream> +#include <sstream> +#include <cassert> + +#ifdef XSD_CXX11 +# include <utility> // std::move +#endif + +#include <xercesc/dom/DOMNode.hpp> +#include <xercesc/dom/DOMAttr.hpp> +#include <xercesc/dom/DOMElement.hpp> +#include <xercesc/dom/DOMDocument.hpp> +#include <xercesc/dom/DOMNamedNodeMap.hpp> + +#include <xercesc/util/XercesVersion.hpp> + +#include <libxsd/cxx/xml/elements.hxx> // xml::properties +#include <libxsd/cxx/xml/dom/auto-ptr.hxx> // dom::auto_ptr/unique_ptr +#include <libxsd/cxx/xml/dom/wildcard-source.hxx> // dom::create_document() + +#include <libxsd/cxx/tree/facet.hxx> +#include <libxsd/cxx/tree/exceptions.hxx> +#include <libxsd/cxx/tree/istream-fwd.hxx> +#include <libxsd/cxx/tree/containers-wildcard.hxx> + +#if _XERCES_VERSION < 30000 +# error Xerces-C++ 2-series is not supported +#endif + +namespace xsd +{ + namespace cxx + { + /** + * @brief C++/Tree mapping runtime namespace. + * + * This is an internal namespace and normally should not be referenced + * directly. Instead you should use the aliases for types in this + * namespaces that are created in the generated code. + * + */ + namespace tree + { + /** + * @brief Parsing and %serialization %flags. + * + * Flags are used to modify the default behavior of %parsing and + * %serialization functions as well as %parsing constructors. + * + * @nosubgrouping + */ + class flags + { + public: + /** + * @name Flag constants + */ + //@{ + + /** + * @brief Keep DOM association in the resulting tree. + */ + static const unsigned long keep_dom = 0x00000100UL; + + /** + * @brief Assume ownership of the DOM document. + * + * This flag only makes sense together with the @c keep_dom + * flag in the call to the %parsing function with the + * @c dom::auto_ptr/unique_ptr\<DOMDocument> argument. + * + */ + static const unsigned long own_dom = 0x00000200UL; + + /** + * @brief Turn off XML Schema validation in the underlying XML + * parser. + */ + static const unsigned long dont_validate = 0x00000400UL; + + /** + * @brief Extract XML content for anyType or anySimpleType. + * Normally you don't need to specify this flag explicitly. + */ + static const unsigned long extract_content = 0x00000800UL; + + /** + * @brief Do not initialize the Xerces-C++ runtime. + */ + static const unsigned long dont_initialize = 0x00000001UL; + + /** + * @brief Do not write XML declaration during %serialization. + */ + static const unsigned long no_xml_declaration = 0x00010000UL; + + /** + * @brief Do not add extra spaces or new lines that make the + * resulting XML easier to read. + */ + static const unsigned long dont_pretty_print = 0x00020000UL; + + //@cond + + // The following flags are for internal use. + // + static const unsigned long base = 0x01000000UL; + + //@endcond + + // Notes on flag blocks: + // + // 0x000000FF - common (applicable to both parsing and serialization) + // 0x0000FF00 - parsing (values aligned with XML parsing) + // 0x00FF0000 - serialization (values aligned with XML serialization) + // 0xFF000000 - internal + + //@} + + public: + /** + * @brief Initialize an instance with an integer value. + * + * @param x A %flags value as an integer. + */ + flags (unsigned long x = 0) + : x_ (x) + { + } + + /** + * @brief Convert an instance to an integer value. + * + * @return An integer %flags value. + */ + operator unsigned long () const + { + return x_; + } + + /** + * @brief Combine two %flags. + * + * @return A %flags object that is a combination of the arguments. + */ + friend flags + operator| (const flags& a, const flags& b) + { + return flags (a.x_ | b.x_); + } + + /** + * @brief Combine two %flags. + * + * @return A %flags object that is a combination of the arguments. + */ + friend flags + operator| (const flags& a, unsigned long b) + { + return flags (a.x_ | b); + } + + /** + * @brief Combine two %flags. + * + * @return A %flags object that is a combination of the arguments. + */ + friend flags + operator| (unsigned long a, const flags& b) + { + return flags (a | b.x_); + } + + private: + unsigned long x_; + }; + + // Parsing properties. Refer to xsd/cxx/xml/elements.hxx for XML- + // related properties. + // + template <typename C> + class properties: public xml::properties<C> + { + }; + + /** + * @brief Content order sequence entry. + * + * @nosubgrouping + */ + struct content_order + { + /** + * @brief Initialize an instance with passed id and index. + * + * @param id Content id. + * @param index Content index in the corresponding sequence. + */ + content_order (std::size_t id, std::size_t index = 0) + : id (id), index (index) + { + } + + /** + * @brief Content id. + */ + std::size_t id; + + /** + * @brief Content index. + */ + std::size_t index; + }; + + //@cond + + bool + operator== (const content_order&, const content_order&); + + bool + operator!= (const content_order&, const content_order&); + + bool + operator< (const content_order&, const content_order&); + + // DOM user data keys. + // + template <int dummy> + struct user_data_keys_template + { + // Back pointers to tree nodes. + // + static const XMLCh node[21]; + }; + + typedef user_data_keys_template<0> user_data_keys; + + // + // + struct identity + { + virtual + ~identity () + { + } + + identity () + { + } + + virtual bool + before (const identity&) const = 0; + + virtual void + throw_duplicate_id () const = 0; + + private: + identity (const identity&); + + identity& + operator= (const identity&); + }; + + //@endcond + + + // anyType. VC++ has a name injection bug that makes it impossible + // to have a member with the same name as a base type. To address + // that we will have to choose some unique name for the definition + // and typedef it to 'type'. + // + class _type; + + /** + * @brief Class corresponding to the XML Schema anyType built-in type. + * + */ + typedef _type type; + + /** + * @brief Container type. + * + */ + typedef _type container; + + /** + * @brief Class corresponding to the XML Schema anyType built-in type. + * + * This class is a base for every generated and built-in type in the + * C++/Tree mapping. + * + * @nosubgrouping + */ + class _type + { + public: + virtual + ~_type () + { + // Everything should have been unregistered by now. + // + assert (map_.get () == 0 || map_->size () == 0); + } + + public: + /** + * @name Constructors + */ + //@{ + + /** + * @brief Default constructor. + */ + _type (); + + /** + * @brief Create an instance from a C string. + * + * @param s A string to initialize the instance with. + * + * Note that this constructor ignores the string and creates an + * empty anyType instance. In particular, it will not convert the + * string into DOM content. The purpose of such a strange constructor + * is to allow statically-initialized default values of anyType type. + */ + template <typename C> + explicit + _type (const C* s); + + public: + /** + * @brief Copy constructor. + * + * @param x An instance to make a copy of. + * @param f Flags to create the copy with. + * @param c A pointer to the object that will contain the copy. + * + * For polymorphic object models use the @c _clone function instead. + */ + _type (const type& x, flags f = 0, container* c = 0); + + /** + * @brief Copy the instance polymorphically. + * + * @param f Flags to create the copy with. + * @param c A pointer to the object that will contain the copy. + * @return A pointer to the dynamically allocated copy. + * + * This function ensures that the dynamic type of the instance + * is used for copying and should be used for polymorphic object + * models instead of the copy constructor. + */ + virtual type* + _clone (flags f = 0, container* c = 0) const + { + return new type (*this, f, c); + } + + public: + /** + * @brief Create an instance from a data representation + * stream. + * + * @param s A stream to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + template <typename S> + _type (istream<S>& s, flags f = 0, container* c = 0); + + /** + * @brief Create an instance from a DOM element. + * + * @param e A DOM element to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + _type (const xercesc::DOMElement& e, + flags f = flags::extract_content, + container* c = 0); + + /** + * @brief Create an instance from a DOM Attribute. + * + * @param a A DOM attribute to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + _type (const xercesc::DOMAttr& a, flags f = 0, container* c = 0); + + /** + * @brief Create an instance from a %string fragment. + * + * @param s A %string fragment to extract the data from. + * @param e A pointer to DOM element containing the %string fragment. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + template <typename C> + _type (const std::basic_string<C>& s, + const xercesc::DOMElement* e, + flags f = 0, + container* c = 0); + //@} + + public: + /** + * @brief Copy assignment operator. + * + * @param x An instance to assign. + * @return A reference to the instance. + */ + type& + operator= (const type& x) + { + if (this != &x) + { + if (x.content_.get () == 0) + content_.reset (); + else + content_ = x.content_->clone (); + + // Drop DOM association. + // + dom_info_.reset (); + } + + return *this; + } + + // anyType content API. + // + public: + //@cond + typedef element_optional dom_content_optional; + //@endcond + + /** + * @brief Return a read-only (constant) reference to the anyType + * DOM content. + * + * @return A constant reference to the optional container. + * + * The DOM content is returned as an optional element container, + * the same container as used for optional element wildcards. + */ + const dom_content_optional& + dom_content () const; + + /** + * @brief Return a read-write reference to the anyType DOM content. + * + * @return A reference to the optional container. + * + * The DOM content is returned as an optional element container, + * the same container as used for optional element wildcards. + */ + dom_content_optional& + dom_content (); + + /** + * @brief Set the anyType DOM content. + * + * @param e A new element to set. + * + * This function makes a copy of its argument and sets it as the + * new DOM content. + */ + void + dom_content (const xercesc::DOMElement& e); + + /** + * @brief Set the anyType DOM content. + * + * @param e A new element to use. + * + * This function will use the passed element directly instead + * of making a copy. For this to work the element should belong + * to the DOM document associated with this anyType instance. + * + * @see dom_content_document + */ + void + dom_content (xercesc::DOMElement* e); + + /** + * @brief Set the anyType DOM content. + * + * @param d An optional container with the new element to set. + * + * If the element is present in @a d then this function makes a + * copy of this element and sets it as the new wildcard content. + * Otherwise the element container is set the 'not present' state. + */ + void + dom_content (const dom_content_optional& d); + + /** + * @brief Return a read-only (constant) reference to the DOM + * document associated with this anyType instance. + * + * @return A constant reference to the DOM document. + * + * The DOM document returned by this function is used to store + * the raw XML content corresponding to the anyType instance. + */ + const xercesc::DOMDocument& + dom_content_document () const; + + /** + * @brief Return a read-write reference to the DOM document + * associated with this anyType instance. + * + * @return A reference to the DOM document. + * + * The DOM document returned by this function is used to store + * the raw XML content corresponding to the anyType instance. + */ + xercesc::DOMDocument& + dom_content_document (); + + /** + * @brief Check for absence of DOM (anyType) and text (anySimpleType) + * content. + * + * @return True if there is no content and false otherwise. + * + * This is an optimization function that allows us to check for the + * lack of content without actually creating its empty representation + * (that is, empty DOM document for DOM or empty string for text). + */ + bool + null_content () const; + + // + // + public: + /** + * @brief Comparison operator. It uses DOM (anyType) or text + * (anySimpleType) content if present. If the content is missing + * then the types are assumed unequal. + * + * @return True if the instances are equal, false otherwise. + */ + friend bool + operator== (const type& x, const type& y) + { + return x.content_.get () != 0 && + x.content_->compare (y.content_.get ()); + } + + /** + * @brief Comparison operator. It uses DOM (anyType) or text + * (anySimpleType) content if present. If the content is missing + * then the types are assumed unequal. + * + * @return True if the instances are not equal, false otherwise. + */ + friend bool + operator!= (const type& x, const type& y) {return !(x == y);} + + // Container API. + // + public: + /** + * @brief Get a constant pointer to container, an object model + * node that contains this instance. + * + * @return A constant pointer to container, or 0 if this instance + * is not contained. + */ + const container* + _container () const + { + return container_; + } + + /** + * @brief Get a pointer to container, an object model node that + * contains this instance. + * + * @return A pointer to container, or 0 if this instance is not + * contained. + */ + container* + _container () + { + return container_; + } + + /** + * @brief Set this instance's new container, an object model node + * that contains this instance. + * + * @param c A pointer to container. + */ + virtual void + _container (container* c) + { + container* dr (0); + + if (c != 0) + { + dr = c->_root (); + + if (dr == 0) + dr = c; + } + + XSD_AUTO_PTR<map>& m (dr ? dr->map_ : map_); + + if (container_ == 0) + { + if (c != 0 && map_.get () != 0) + { + // Transfer our IDs to the new root. + // + if (m.get () != 0) + { + m->insert (map_->begin (), map_->end ()); + map_.reset (); + } + else + { +#ifdef XSD_CXX11 + m = std::move (map_); +#else + m = map_; +#endif + } + } + } + else + { + container* sr (_root ()); + + if (sr->map_.get () != 0) + { + // Transfer IDs that belong to this subtree. + // + for (map::iterator i (sr->map_->begin ()), e (sr->map_->end ()); + i != e;) + { + type* x (i->second); + for (; x != this && x != sr; x = x->_container ()) ; + + if (x != sr) + { + // Part of our subtree. + // + if (m.get () == 0) + m.reset (new map); + + m->insert (*i); + sr->map_->erase (i++); + } + else + ++i; + } + } + } + + container_ = c; + } + + /** + * @brief Get a constant pointer to object model's root node. + * + * @return A constant pointer to root node, or 0 if this instance + * is not contained. + */ + const container* + _root () const + { + const container* r (container_); + + for (const container* c (r); c != 0; c = c->container_) + r = c; + + return r; + } + + /** + * @brief Get a pointer to object model's root node. + * + * @return A pointer to root node, or 0 if this instance is not + * contained. + */ + container* + _root () + { + container* r (container_); + + for (container* c (r); c != 0; c = c->container_) + r = c; + + return r; + } + + // DOM association. + // + public: + /** + * @brief Get a constant pointer to a DOM node associated with + * this object model node. + * + * @return A constant pointer to DOM node, or 0 if none associated. + */ + const xercesc::DOMNode* + _node () const + { + return dom_info_.get () ? dom_info_->node() : 0; + } + + /** + * @brief Get a pointer to a DOM node associated with this object + * model node. + * + * @return A pointer to DOM node, or 0 if none associated. + */ + xercesc::DOMNode* + _node () + { + return dom_info_.get () ? dom_info_->node () : 0; + } + + /** + * @brief Exception indicating that a DOM node cannot be associated + * with an object model node. + */ + class bad_dom_node_type: public std::exception //@@ Inherit exception<C>. + { + public: + /** + * @brief Get %exception description. + * + * @return A C %string describing the %exception. + */ + virtual const char* + what () const throw () + { + return "DOM node is not an attribute node or element node"; + } + }; + + /** + * @brief Manually set a DOM node associated with this object + * model node. + * + * The DOM node should be a child of the parent's DOM node. If + * this object model node is a root of the tree, then it will + * assume the ownership of the whole DOM document to which this + * DOM node belongs. + * + * @param n A pointer to DOM node (should be either an element or + * an attribute). + */ + void + _node (xercesc::DOMNode* n) + { + switch (n->getNodeType ()) + { + case xercesc::DOMNode::ELEMENT_NODE: + { + if (container_ != 0) + { + assert (_root ()->_node () != 0); + assert (_root ()->_node ()->getOwnerDocument () == + n->getOwnerDocument ()); + } + + dom_info_ = + dom_info_factory::create ( + *static_cast<xercesc::DOMElement*> (n), + *this, + container_ == 0); + + break; + } + case xercesc::DOMNode::ATTRIBUTE_NODE: + { + assert (container_ != 0); + assert (_root ()->_node () != 0); + assert (_root ()->_node ()->getOwnerDocument () == + n->getOwnerDocument ()); + + dom_info_ = + dom_info_factory::create ( + *static_cast<xercesc::DOMAttr*> (n), + *this); + + break; + } + default: + { + throw bad_dom_node_type (); + } + } + } + + public: + //@cond + + void + _register_id (const identity& i, type* t) + { + // We should be the root. + // + assert (container_ == 0); + + if (map_.get () == 0) + map_.reset (new map); + + if (!map_->insert ( + std::pair<const identity*, type*> (&i, t)).second) + { + i.throw_duplicate_id (); + } + } + + //@@ Does not inherit from exception<C>. + // + struct not_registered: std::exception + { + virtual const char* + what () const throw () + { + return "attempt to unregister non-existent id"; + } + }; + + void + _unregister_id (const identity& id) + { + // We should be the root. + // + assert (container_ == 0); + + if (map_.get () == 0 || map_->erase (&id) == 0) + throw not_registered (); + } + + type* + _lookup_id (const identity& id) const + { + if (map_.get ()) + { + map::const_iterator it (map_->find (&id)); + + if (it != map_->end ()) + return it->second; + } + + return 0; + } + + //@endcond + + private: + //@cond + + struct dom_info + { + virtual + ~dom_info () {} + + dom_info () {} + + virtual XSD_AUTO_PTR<dom_info> + clone (type& tree_node, container*) const = 0; + + virtual xercesc::DOMNode* + node () = 0; + + private: + dom_info (const dom_info&); + dom_info& operator= (const dom_info&); + }; + + struct dom_element_info: public dom_info + { + dom_element_info (xercesc::DOMElement& e, type& n, bool root) + : e_ (e) + { + e_.setUserData (user_data_keys::node, &n, 0); + + if (root) + { + // The caller should have associated a dom::auto/unique_ptr + // object that owns this document with the document node + // using the xml_schema::dom::tree_node_key key. + // + XSD_DOM_AUTO_PTR<xercesc::DOMDocument>* pd ( + reinterpret_cast<XSD_DOM_AUTO_PTR<xercesc::DOMDocument>*> ( + e.getOwnerDocument ()->getUserData (user_data_keys::node))); + + assert (pd != 0); + assert (pd->get () == e.getOwnerDocument ()); + + // Transfer ownership. +#ifdef XSD_CXX11 + doc_ = std::move (*pd); +#else + doc_ = *pd; +#endif + } + } + + virtual XSD_AUTO_PTR<dom_info> + clone (type& tree_node, container* c) const + { + // Check if we are a document root. + // + if (c == 0) + { + // We preserver DOM associations only in complete + // copies from root. + // + return XSD_AUTO_PTR<dom_info> ( + doc_.get () == 0 + ? 0 + : new dom_element_info (*doc_, tree_node)); + } + + // Check if our container does not have DOM association (e.g., + // because it wasn't a complete copy of the tree). + // + using xercesc::DOMNode; + + DOMNode* cn (c->_node ()); + + if (cn == 0) + return XSD_AUTO_PTR<dom_info> (); + + // Now we are going to find the corresponding element in + // the new tree. + // + { + using xercesc::DOMElement; + + DOMNode& pn (*e_.getParentNode ()); + assert (pn.getNodeType () == DOMNode::ELEMENT_NODE); + + DOMNode* sn (pn.getFirstChild ()); // Source. + DOMNode* dn (cn->getFirstChild ()); // Destination. + + // We should have at least one child. + // + assert (sn != 0); + + // Move in parallel until we get to the needed node. + // + for (; sn != 0 && !e_.isSameNode (sn);) + { + sn = sn->getNextSibling (); + dn = dn->getNextSibling (); + } + + // e_ should be on the list. + // + assert (sn != 0); + + assert (dn->getNodeType () == DOMNode::ELEMENT_NODE); + + return XSD_AUTO_PTR<dom_info> ( + new dom_element_info (static_cast<DOMElement&> (*dn), + tree_node, + false)); + } + } + + virtual xercesc::DOMNode* + node () + { + return &e_; + } + + private: + dom_element_info (const xercesc::DOMDocument& d, type& n) + : doc_ (static_cast<xercesc::DOMDocument*> ( + d.cloneNode (true))), + e_ (*doc_->getDocumentElement ()) + { + e_.setUserData (user_data_keys::node, &n, 0); + } + + private: + XSD_DOM_AUTO_PTR<xercesc::DOMDocument> doc_; + xercesc::DOMElement& e_; + }; + + + struct dom_attribute_info: public dom_info + { + dom_attribute_info (xercesc::DOMAttr& a, type& n) + : a_ (a) + { + a_.setUserData (user_data_keys::node, &n, 0); + } + + virtual XSD_AUTO_PTR<dom_info> + clone (type& tree_node, container* c) const + { + // Check if we are a document root. + // + if (c == 0) + { + // We preserver DOM associations only in complete + // copies from root. + // + return XSD_AUTO_PTR<dom_info> (); + } + + // Check if our container does not have DOM association (e.g., + // because it wasn't a complete copy of the tree). + // + using xercesc::DOMNode; + + DOMNode* cn (c->_node ()); + + if (cn == 0) + return XSD_AUTO_PTR<dom_info> (); + + // We are going to find the corresponding attribute in + // the new tree. + // + using xercesc::DOMAttr; + using xercesc::DOMElement; + using xercesc::DOMNamedNodeMap; + + DOMElement& p (*a_.getOwnerElement ()); + DOMNamedNodeMap& nl (*p.getAttributes ()); + + XMLSize_t size (nl.getLength ()), i (0); + + // We should have at least one child. + // + assert (size != 0); + + for ( ;i < size && !a_.isSameNode (nl.item (i)); ++i)/*noop*/; + + // a_ should be in the list. + // + assert (i < size); + + DOMNode& n (*cn->getAttributes ()->item (i)); + assert (n.getNodeType () == DOMNode::ATTRIBUTE_NODE); + + return XSD_AUTO_PTR<dom_info> ( + new dom_attribute_info (static_cast<DOMAttr&> (n), tree_node)); + } + + virtual xercesc::DOMNode* + node () + { + return &a_; + } + + private: + xercesc::DOMAttr& a_; + }; + + // For Sun C++ 5.6. + // + struct dom_info_factory; + friend struct _type::dom_info_factory; + + struct dom_info_factory + { + static XSD_AUTO_PTR<dom_info> + create (const xercesc::DOMElement& e, type& n, bool root) + { + return XSD_AUTO_PTR<dom_info> ( + new dom_element_info ( + const_cast<xercesc::DOMElement&> (e), n, root)); + } + + static XSD_AUTO_PTR<dom_info> + create (const xercesc::DOMAttr& a, type& n) + { + return XSD_AUTO_PTR<dom_info> ( + new dom_attribute_info ( + const_cast<xercesc::DOMAttr&> (a), n)); + } + }; + + //@endcond + + XSD_AUTO_PTR<dom_info> dom_info_; + + + // ID/IDREF map. + // + private: + + //@cond + + struct identity_comparator + { + bool operator () (const identity* x, const identity* y) const + { + return x->before (*y); + } + }; + + //@endcond + + typedef + std::map<const identity*, type*, identity_comparator> + map; + + XSD_AUTO_PTR<map> map_; + + // anyType and anySimpleType content. + // + protected: + + //@cond + + struct content_type + { + virtual + ~content_type () {} + + content_type () {} + + virtual XSD_AUTO_PTR<content_type> + clone () const = 0; + + virtual bool + compare (const content_type*) const = 0; + + private: + content_type (const content_type&); + content_type& operator= (const content_type&); + }; + + struct dom_content_type: content_type + { + dom_content_type () + : doc (xml::dom::create_document<char> ()), dom (*doc) {} + + explicit + dom_content_type (const xercesc::DOMElement& e) + : doc (xml::dom::create_document<char> ()), dom (e, *doc) {} + + explicit + dom_content_type (xercesc::DOMElement* e) + : doc (xml::dom::create_document<char> ()), dom (e, *doc) {} + + explicit + dom_content_type (const dom_content_optional& d) + : doc (xml::dom::create_document<char> ()), dom (d, *doc) {} + + virtual XSD_AUTO_PTR<content_type> + clone () const + { + return XSD_AUTO_PTR<content_type> (new dom_content_type (dom)); + } + + virtual bool + compare (const content_type* c) const + { + if (const dom_content_type* dc = + dynamic_cast<const dom_content_type*> (c)) + return dom == dc->dom; + + return false; + } + + public: + XSD_DOM_AUTO_PTR<xercesc::DOMDocument> doc; + dom_content_optional dom; + }; + + mutable XSD_AUTO_PTR<content_type> content_; + + //@endcond + + private: + container* container_; + }; + + /** + * @brief Class corresponding to the XML Schema anySimpleType built-in + * type. + * + * @nosubgrouping + */ + template <typename C, typename B> + class simple_type: public B + { + public: + /** + * @name Constructors + */ + //@{ + + /** + * @brief Default constructor. + */ + simple_type (); + + /** + * @brief Create an instance from a C string. + * + * @param s A string to initialize the instance with. + */ + simple_type (const C* s); + + /** + * @brief Create an instance from a string. + * + * @param s A string to initialize the instance with. + */ + simple_type (const std::basic_string<C>& s); + + public: + /** + * @brief Copy constructor. + * + * @param x An instance to make a copy of. + * @param f Flags to create the copy with. + * @param c A pointer to the object that will contain the copy. + * + * For polymorphic object models use the @c _clone function instead. + */ + simple_type (const simple_type& x, flags f = 0, container* c = 0); + + /** + * @brief Copy the instance polymorphically. + * + * @param f Flags to create the copy with. + * @param c A pointer to the object that will contain the copy. + * @return A pointer to the dynamically allocated copy. + * + * This function ensures that the dynamic type of the instance + * is used for copying and should be used for polymorphic object + * models instead of the copy constructor. + */ + virtual simple_type* + _clone (flags f = 0, container* c = 0) const; + + public: + /** + * @brief Create an instance from a data representation + * stream. + * + * @param s A stream to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + template <typename S> + simple_type (istream<S>& s, + flags f = flags::extract_content, + container* c = 0); + + /** + * @brief Create an instance from a DOM element. + * + * @param e A DOM element to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + simple_type (const xercesc::DOMElement& e, + flags f = flags::extract_content, + container* c = 0); + + /** + * @brief Create an instance from a DOM Attribute. + * + * @param a A DOM attribute to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + simple_type (const xercesc::DOMAttr& a, + flags f = flags::extract_content, + container* c = 0); + + /** + * @brief Create an instance from a %string fragment. + * + * @param s A %string fragment to extract the data from. + * @param e A pointer to DOM element containing the %string fragment. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + simple_type (const std::basic_string<C>& s, + const xercesc::DOMElement* e, + flags f = flags::extract_content, + container* c = 0); + //@} + + // anySimpleType content API. + // + public: + /** + * @brief Return a read-only (constant) reference to the anySimpleType + * text content. + * + * @return A constant reference to the text string. + */ + const std::basic_string<C>& + text_content () const; + + /** + * @brief Return a read-write reference to the anySimpleType text + * content. + * + * @return A reference to the text string. + */ + std::basic_string<C>& + text_content (); + + /** + * @brief Set the anySimpleType text content. + * + * @param t A new text string to set. + */ + void + text_content (const std::basic_string<C>& t); + + protected: + //@cond + + typedef typename B::content_type content_type; + + struct text_content_type: content_type + { + text_content_type () {} + + explicit + text_content_type (const std::basic_string<C>& t): text (t) {} + + explicit + text_content_type (const C* t): text (t) {} + + virtual XSD_AUTO_PTR<content_type> + clone () const + { + return XSD_AUTO_PTR<content_type> (new text_content_type (text)); + } + + virtual bool + compare (const content_type* c) const + { + if (const text_content_type* tc = + dynamic_cast<const text_content_type*> (c)) + return text == tc->text; + + return false; + } + + public: + // It would have been more elegant to store text content as DOMText. + // However, that would require Xerces-C++ initialization. Also + // having a separate DOMDocument for each text node seems like + // an overkill. + // + std::basic_string<C> text; + }; + + //@endcond + }; + + + /** + * @brief Base class for element types. + * + * This class is a base for every generated element type. + * + * @nosubgrouping + */ + template <typename C, typename T> + class element_type + { + public: + virtual + ~element_type () + { + } + + /** + * @brief Copy the instance polymorphically. + * + * @param f Flags to create the copy with. + * @return A pointer to the dynamically allocated copy. + * + * This function ensures that the dynamic type of the instance + * is used for copying and should be used for polymorphic object + * models instead of the copy constructor. + */ + virtual element_type* + _clone (flags f = 0) const = 0; + + /** + * @brief Return the element name. + * + * @return A read-only string reference containing the element + * name. + */ + virtual const std::basic_string<C>& + _name () const = 0; + + /** + * @brief Return the element namespace. + * + * @return A read-only string reference containing the element + * namespace. Empty string is returned if the element is + * unqualified. + */ + virtual const std::basic_string<C>& + _namespace () const = 0; + + /** + * @brief Return the element value. + * + * @return A pointer to the element value or 0 if the element + * is of a fundamental type. + */ + virtual T* + _value () = 0; + + /** + * @brief Return the element value. + * + * @return A read-only pointer to the element value or 0 if the + * element is of a fundamental type. + */ + virtual const T* + _value () const = 0; + }; + + + //@cond + + // Extra schema type id to disambiguate certain cases where + // different XML Schema types (e.g., double and decimal) are + // mapped to the same fundamental C++ type (e.g., double). + // + struct schema_type + { + enum value + { + other, + double_, + decimal + }; + }; + + //@endcond + + + //@cond + template <typename T, + typename C, + schema_type::value ST = schema_type::other> + struct traits + { + typedef T type; + + static XSD_AUTO_PTR<T> + create (const xercesc::DOMElement& e, flags f, container* c) + { + return XSD_AUTO_PTR<T> (new T (e, f, c)); + } + + static XSD_AUTO_PTR<T> + create (const xercesc::DOMAttr& a, flags f, container* c) + { + return XSD_AUTO_PTR<T> (new T (a, f, c)); + } + + static XSD_AUTO_PTR<T> + create (const std::basic_string<C>& s, + const xercesc::DOMElement* e, + flags f, + container* c) + { + return XSD_AUTO_PTR<T> (new T (s, e, f, c)); + } + + // For now for istream we only go through traits for non- + // fundamental types. + // + template <typename S> + static XSD_AUTO_PTR<T> + create (istream<S>& s, flags f, container* c) + { + return XSD_AUTO_PTR<T> (new T (s, f, c)); + } + }; + + template <typename B, + typename C, + schema_type::value ST> + struct traits<simple_type<C, B>, C, ST> + { + typedef simple_type<C, B> type; + + static XSD_AUTO_PTR<type> + create (const xercesc::DOMElement& e, flags f, container* c) + { + return XSD_AUTO_PTR<type> ( + new type (e, f | flags::extract_content, c)); + } + + static XSD_AUTO_PTR<type> + create (const xercesc::DOMAttr& a, flags f, container* c) + { + return XSD_AUTO_PTR<type> ( + new type (a, f | flags::extract_content, c)); + } + + static XSD_AUTO_PTR<type> + create (const std::basic_string<C>& s, + const xercesc::DOMElement* e, + flags f, + container* c) + { + return XSD_AUTO_PTR<type> ( + new type (s, e, f | flags::extract_content, c)); + } + + template <typename S> + static XSD_AUTO_PTR<type> + create (istream<S>& s, flags f, container* c) + { + return XSD_AUTO_PTR<type> ( + new type (s, f | flags::extract_content, c)); + } + }; + //@endcond + + + /** + * @brief Class template that emulates inheritance from a + * fundamental C++ type. + * + * @nosubgrouping + */ + template <typename T, + typename C, + typename B, + schema_type::value ST = schema_type::other> + class fundamental_base: public B + { + public: + /** + * @name Constructors + */ + //@{ + + /** + * @brief Default constructor. + */ + fundamental_base () + : facet_table_ (0), x_ () + { + } + + /** + * @brief Initialize an instance with an underlying type value. + * + * @param x An underlying type value. + */ + fundamental_base (T x) + : facet_table_ (0), x_ (x) + { + } + + public: + /** + * @brief Copy constructor. + * + * @param x An instance to make a copy of. + * @param f Flags to create the copy with. + * @param c A pointer to the object that will contain the copy. + * + * For polymorphic object models use the @c _clone function instead. + */ + fundamental_base (const fundamental_base& x, + flags f = 0, + container* c = 0) + : B (x, f, c), facet_table_ (0), x_ (x.x_) + { + } + + /** + * @brief Copy the instance polymorphically. + * + * @param f Flags to create the copy with. + * @param c A pointer to the object that will contain the copy. + * @return A pointer to the dynamically allocated copy. + * + * This function ensures that the dynamic type of the instance + * is used for copying and should be used for polymorphic object + * models instead of the copy constructor. + */ + virtual fundamental_base* + _clone (flags f = 0, container* c = 0) const; + + public: + /** + * @brief Create an instance from a data representation + * stream. + * + * @param s A stream to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + template <typename S> + fundamental_base (istream<S>& s, flags f = 0, container* c = 0); + + /** + * @brief Create an instance from a DOM element. + * + * @param e A DOM element to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + fundamental_base (const xercesc::DOMElement& e, + flags f = 0, + container* c = 0); + + /** + * @brief Create an instance from a DOM Attribute. + * + * @param a A DOM attribute to extract the data from. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + fundamental_base (const xercesc::DOMAttr& a, + flags f = 0, + container* c = 0); + + /** + * @brief Create an instance from a %string fragment. + * + * @param s A %string fragment to extract the data from. + * @param e A pointer to DOM element containing the %string fragment. + * @param f Flags to create the new instance with. + * @param c A pointer to the object that will contain the new + * instance. + */ + fundamental_base (const std::basic_string<C>& s, + const xercesc::DOMElement* e, + flags f = 0, + container* c = 0); + //@} + + public: + /** + * @brief Assign an underlying type value to the instance. + * + * @param x An underlying type value. + * @return A reference to the instance. + */ + fundamental_base& + operator= (const T& x) + { + if (&x_ != &x) + x_ = x; + + return *this; + } + + public: + /** + * @brief Implicitly convert the instance to constant reference to + * the underlying type. + * + * @return A constant reference to the underlying type. + */ + operator const T& () const + { + return x_; + } + + /** + * @brief Implicitly convert the instance to reference to the + * underlying type. + * + * @return A reference to the underlying type. + */ + operator T& () + { + return x_; + } + + // The following extra conversion operators causes problems on + // some compilers (notably VC 9.0) and are disabled by default. + // +#ifdef XSD_TREE_EXTRA_FUND_CONV + /** + * @brief Implicitly convert the instance to another type (const + * version). + * + * @return A value converted to the target type. + */ + template <typename T2> + operator T2 () const + { + return x_; + } + + /** + * @brief Implicitly convert the instance to another type. + * + * @return A value converted to the target type. + */ + template <typename T2> + operator T2 () + { + return x_; + } +#endif // XSD_TREE_EXTRA_FUND_CONV + + public: + /** + * @brief Get the facet table associated with this type. + * + * @return A pointer to read-only facet table or 0. + */ + const facet* + _facet_table () const + { + return facet_table_; + } + + protected: + /** + * @brief Set the facet table associated with this type. + * + * @param ft A pointer to read-only facet table. + */ + void + _facet_table (const facet* ft) + { + facet_table_ = ft; + } + + private: + const facet* facet_table_; + T x_; + }; + + // While thse operators are not normally necessary, they + // help resolve ambiguities between implicit conversion and + // construction. + // + + /** + * @brief %fundamental_base comparison operator. + * + * @return True if the underlying values are equal, false otherwise. + */ + template <typename T, typename C, typename B, schema_type::value ST> + inline bool + operator== (const fundamental_base<T, C, B, ST>& x, + const fundamental_base<T, C, B, ST>& y) + { + T x_ (x); + T y_ (y); + return x_ == y_; + } + + /** + * @brief %fundamental_base comparison operator. + * + * @return True if the underlying values are not equal, false otherwise. + */ + template <typename T, typename C, typename B, schema_type::value ST> + inline bool + operator!= (const fundamental_base<T, C, B, ST>& x, + const fundamental_base<T, C, B, ST>& y) + { + T x_ (x); + T y_ (y); + return x_ != y_; + } + + + //@cond + + // Comparator for enum tables. + // + template <typename C> + struct enum_comparator + { + enum_comparator (const C* const* table) + : table_ (table) + { + } + + bool + operator() (std::size_t i, const std::basic_string<C>& s) const + { + return table_[i] < s; + } + + bool + operator() (const std::basic_string<C>& s, std::size_t i) const + { + return s < table_[i]; + } + + // This overload shouldn't be necessary according to the standard + // and removing it doesn't appear to trip any old compilers that + // we still support. But let's keeps preprocessed-out until we + // go C++11-only. + // +#if 0 + bool + operator() (std::size_t i, std::size_t j) const + { + return std::basic_string<C> (table_[i]) < table_[j]; + } +#endif + + private: + const C* const* table_; + }; + + //@endcond + } + } +} + +#include <libxsd/cxx/tree/elements.ixx> +#include <libxsd/cxx/tree/elements.txx> + +#endif // LIBXSD_CXX_TREE_ELEMENTS_HXX |