94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
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// file : xsd/cxx/parser/elements.hxx
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// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
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#ifndef XSD_CXX_PARSER_ELEMENTS_HXX
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#define XSD_CXX_PARSER_ELEMENTS_HXX
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#include <xsd/cxx/ro-string.hxx>
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namespace xsd
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{
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namespace cxx
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{
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namespace parser
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{
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// pre() and post() are overridable pre/post callbacks, i.e., the
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// derived parser can override them without calling the base version.
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// _pre() and _post() are not overridable pre/post callbacks in the
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// sense that the derived parser may override them but has to call
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// the base version. The call sequence is as shown below:
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//
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// pre ()
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// _pre ()
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// _post ()
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// post ()
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//
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template <typename C>
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class parser_base
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{
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public:
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virtual
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~parser_base ();
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virtual void
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pre ();
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virtual void
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_pre ();
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// The type argument is a type name and namespace from the
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// xsi:type attribute in the form "<name> <namespace>" with
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// the space and namespace part absent if the type does not
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// have a namespace or 0 if xsi:type is not present.
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//
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virtual void
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_start_element (const ro_string<C>& ns,
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const ro_string<C>& name,
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const ro_string<C>* type) = 0;
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virtual void
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_end_element (const ro_string<C>& ns,
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const ro_string<C>& name) = 0;
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virtual void
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_attribute (const ro_string<C>& ns,
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const ro_string<C>& name,
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const ro_string<C>& value) = 0;
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virtual void
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_characters (const ro_string<C>&) = 0;
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virtual void
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_post ();
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// The post() signature varies depending on the parser return
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// type.
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//
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// Implementation callbacks for _pre and _post. The _pre and _post
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// callbacks should never be called directly. Instead, the *_impl
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// versions should be used. By default _pre_impl and _post_impl
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// simply call _pre and _post respectively.
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//
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virtual void
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_pre_impl ();
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virtual void
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_post_impl ();
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public:
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// Dynamic type in the form "<name> <namespace>" with
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// the space and namespace part absent if the type does
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// not have a namespace. Used in polymorphism-aware code.
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//
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virtual const C*
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_dynamic_type () const;
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};
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}
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}
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}
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#include <xsd/cxx/parser/elements.txx>
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#endif // XSD_CXX_PARSER_ELEMENTS_HXX
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