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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#ifndef ROCKETCOREBASEXMLPARSER_H
#define ROCKETCOREBASEXMLPARSER_H
#include "Header.h"
#include "Types.h"
#include "Dictionary.h"
#include <set>
namespace Rocket {
namespace Core {
class Stream;
typedef Dictionary XMLAttributes;
/**
@author Peter Curry
*/
class ROCKETCORE_API BaseXMLParser
{
public:
BaseXMLParser();
virtual ~BaseXMLParser();
/// Registers a tag as containing general character data. This will mean the contents of the tag will be parsed
/// similarly to a CDATA tag (ie, no other markup will be recognised until the section's closing tag is found).
/// @param[in] tag The tag to register as containing generic character data.
void RegisterCDATATag(const String& tag);
/// Parses the given stream as an XML file, and calls the handlers when
/// interesting phenomena are encountered.
void Parse(Stream* stream);
/// Get the line number in the stream.
/// @return The line currently being processed in the XML stream.
int GetLineNumber();
/// Called when the parser finds the beginning of an element tag.
virtual void HandleElementStart(const String& name, const XMLAttributes& attributes);
/// Called when the parser finds the end of an element tag.
virtual void HandleElementEnd(const String& name);
/// Called when the parser encounters data.
virtual void HandleData(const String& data);
protected:
// The stream we're reading the XML from.
Stream* xml_source;
private:
void ReadHeader();
void ReadBody();
bool ReadOpenTag();
bool ReadCloseTag();
bool ReadAttributes(XMLAttributes& attributes);
bool ReadCDATA(const char* terminator = NULL);
// Reads from the stream until a complete word is found.
// @param[out] word Word thats been found
// @param[in] terminators List of characters that terminate the search
bool FindWord(String& word, const char* terminators = NULL);
// Reads from the stream until the given character set is found. All
// intervening characters will be returned in data.
bool FindString(const unsigned char* string, String& data);
// Returns true if the next sequence of characters in the stream
// matches the given string. If consume is set and this returns true,
// the characters will be consumed.
bool PeekString(const unsigned char* string, bool consume = true);
// Fill the buffer as much as possible, without removing any content that is still pending
bool FillBuffer();
unsigned char* read;
unsigned char* buffer;
int buffer_size;
int buffer_used;
int line_number;
int open_tag_depth;
// The element attributes being read.
XMLAttributes attributes;
// The loose data being read.
String data;
std::set< String > cdata_tags;
};
}
}
#endif
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