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86 lines
3.8 KiB
C
86 lines
3.8 KiB
C
2 years ago
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// Copyright 2008, Google Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// 3. Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// This file contains the declaration of the ExpatHandlerNs class.
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#ifndef KML_BASE_EXPAT_HANDLER_NS_H__
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#define KML_BASE_EXPAT_HANDLER_NS_H__
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#include "kml/base/expat_handler.h"
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#include "kml/base/util.h"
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namespace kmlbase {
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class Xmlns;
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// Interface to namespace-enabled expat parser. Overall usages is as follows:
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// Xmlns* xmlns = Xmlns::Create(xmlns-default-and-prefix-namespace-pairs);
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// class YourExpatHandler : public ExpatHandler {
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// public:
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// StartElement(const char* your_prefixed_name, const char** atts) {
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// // your_prefixed_name is either:
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// // 1) "foo" if "foo" is in the default namespace of the Xmlns.
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// // 2) "yourprefix:goo" if "goo" is in a namespace for which there
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// // is a mapping to "yourprefix" in the xmlns.
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// // 3) "whoknows:bar" if "bar" is in a namespace unknown to the Xmlns.
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// }
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// EndElement(const char* your_prefixed_name) {
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// }
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// CharData(const XML_Char* s, int len) {
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// }
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// };
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// YourExpatHandler your_expat_handler;
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// ExpatHandlerNs expat_handler_ns(&your_expat_handler, xmlns);
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// bool status = ExpatParser(xml_data, &expat_handler_ns, errors, true);
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class ExpatHandlerNs : public ExpatHandler {
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public:
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// The given ExpatHandler is a prefix-aware but namespace-unaware handler.
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// The Xmlns describes the prefixes implemented by the handler. For example,
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// if the ExpatHandler implements "atom:name" then Xmlns should have a
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// mapping from the "atom" prefix to the atom namespace. ExpatHandler's
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// unprefixed elements "Placemark", for example, are in the Xmlns's default
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// namespace.
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ExpatHandlerNs(ExpatHandler* expat_handler, const Xmlns* xmlns);
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virtual ~ExpatHandlerNs() {}
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// This translates an expat-generated namespace qualified name into a
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// name with a prefix known to the Xmlns passed to the constructor.
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const string TranslatePrefixedName(
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const string prefixed_name) const;
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virtual void StartElement(const string& namespaced_named,
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const StringVector& atts);
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virtual void EndElement(const string& namespaced_name);
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virtual void CharData(const string& s);
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virtual void StartNamespace(const string& prefix, const string& uri);
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virtual void EndNamespace(const string& prefix);
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private:
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ExpatHandler* expat_handler_;
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const Xmlns* xmlns_;
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};
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} // end namespace kmlbase
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#endif // KML_BASE_EXPAT_HANDLER_NS_H__
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