/usr/include/kml/base/expat_parser.h is in libkml-dev 1.3.0-5.
This file is owned by root:root, with mode 0o644.
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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// 3. Neither the name of Google Inc. nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This file contains the declaration of the internal ExpatParser class.
// Direct use of this class in application code is not recommended. Typical
// applications should use kmlengine::KmlFile for parsing KML (and KMZ) files.
// Note that we explicitly do not support parsing files with XML ENTITY
// declarations. See the unit tests in expat_parser_test.cc for some concrete
// examples.
#ifndef KML_BASE_EXPAT_PARSER_H__
#define KML_BASE_EXPAT_PARSER_H__
#include <map>
#include "expat.h"
#include "kml/base/util.h"
namespace kmlbase {
const char kExpatNsSeparator = '|';
class ExpatHandler;
class ExpatHandlerNs;
typedef std::map<string, ExpatHandler*> ExpatHandlerMap;
class ExpatHandlerSet {
public:
ExpatHandlerSet()
: default_(NULL) {
}
void set_handler(const string& xml_namespace,
ExpatHandler* expat_handler) {
if (!default_) { // TODO: hack
default_ = expat_handler;
}
expat_handler_map_[xml_namespace] = expat_handler;
}
// TODO: this is a hack. only the instance document has a concept of a
// default namespace (which may have no default namespace at all).
ExpatHandler* get_default_handler() const {
return default_;
}
// TODO: this is how the parser core really looks up the handler for
// a given namespace. This returns NULL if no handler is available for
// the given namespace.
ExpatHandler* get_handler(const string& xmlns) const {
ExpatHandlerMap::const_iterator iter = expat_handler_map_.find(xmlns);
return iter == expat_handler_map_.end() ? NULL : iter->second;
}
private:
ExpatHandler* default_;
ExpatHandlerMap expat_handler_map_;
};
// This internal class front-ends expat. Usage is as follows:
// class SomeXmlLanguageHandler : public kmlbase::ExpatHandler {
// // See expat_handler.h for methods to implement.
// };
// SomeXmlLanguageHandler some_handler;
// bool status = ExpatParser::ParseString(xml_file_contents, &some_handler,
// &errors, namespace_aware_bool);
// State of parse (if any) is held in the class derived from ExpatHandler.
class ExpatParser {
public:
ExpatParser(ExpatHandler* handler, bool namespace_aware);
~ExpatParser();
// Parses a string of XML data in one operation. The xml string must be a
// complete, well-formed XML document.
static bool ParseString(const string& xml, ExpatHandler* handler,
string* errors, bool namespace_aware);
// This allocates a buffer for use with ParseInternalBuffer. The caller is
// expected to put the next buffer's worth of XML to parse into this buffer.
void* GetInternalBuffer(size_t size);
// This sends the data the caller put in the buffer in GetInternalBuffer to
// the parser. The size indicates the number of bytes of data in the buffer.
// If an error string is supplied any error messages are stored there.
// If this buffer is the final chunk of XML to parse set is_final to true.
bool ParseInternalBuffer(size_t size, string* errors, bool is_final);
// Parse a chunk of XML data. The input does not have to be split on element
// boundaries. The is_final flag indicates to expat if it should consider
// this buffer the end of the content.
bool ParseBuffer(const string& input, string* errors,
bool is_final);
private:
ExpatHandler* expat_handler_;
XML_Parser parser_;
// Used by the static ParseString public method.
bool _ParseString(const string& xml, string* errors);
void ReportError(XML_Parser parser, string* errors);
};
} // end namespace kmldom
#endif // KML_BASE_EXPAT_PARSER_H__
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