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112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef cmXMLParser_h
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#define cmXMLParser_h
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#include "cmStandardIncludes.h"
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extern "C"
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{
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void cmXMLParserStartElement(void*, const char*, const char**);
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void cmXMLParserEndElement(void*, const char*);
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void cmXMLParserCharacterDataHandler(void*, const char*, int);
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}
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/** \class cmXMLParser
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* \brief Helper class for performing XML parsing
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*
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* Superclass for all XML parsers.
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*/
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class cmXMLParser
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{
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public:
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cmXMLParser();
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virtual ~cmXMLParser();
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//! Parse given XML string
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virtual int Parse(const char* string);
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//! Parse given XML file
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virtual int ParseFile(const char* file);
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/**
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* When parsing fragments of XML or streaming XML, use the following
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* three methods. InitializeParser method initialize parser but does
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* not perform any actual parsing. ParseChunk parses framgent of
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* XML. This has to match to what was already parsed. CleanupParser
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* finishes parsing. If there were errors, CleanupParser will report
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* them.
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*/
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virtual int InitializeParser();
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virtual int ParseChunk(const char* inputString,
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std::string::size_type length);
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virtual int CleanupParser();
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protected:
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//! This variable is true if there was a parse error while parsing in
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//chunks.
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int ParseError;
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//1 Expat parser structure. Exists only during call to Parse().
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void* Parser;
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/**
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* Called before each block of input is read from the stream to check if
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* parsing is complete. Can be replaced by subclasses to change the
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* terminating condition for parsing. Parsing always stops when the end of
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* file is reached in the stream.
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*/
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virtual int ParsingComplete();
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/**
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* Called when a new element is opened in the XML source. Should be
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* replaced by subclasses to handle each element. name = Name of new
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* element. atts = Null-terminated array of attribute name/value pairs.
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* Even indices are attribute names, and odd indices are values.
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*/
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virtual void StartElement(const char* name, const char** atts);
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//! Called at the end of an element in the XML source opened when
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//StartElement was called.
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virtual void EndElement(const char* name);
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//! Called when there is character data to handle.
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virtual void CharacterDataHandler(const char* data, int length);
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//! Called by Parse to report an XML syntax error.
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virtual void ReportXmlParseError();
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//! Utility for convenience of subclasses. Wraps isspace C library
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// routine.
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static int IsSpace(char c);
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//! Send the given buffer to the XML parser.
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virtual int ParseBuffer(const char* buffer,
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std::string::size_type length);
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//! Send the given c-style string to the XML parser.
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int ParseBuffer(const char* buffer);
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//! Callbacks for the expat
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friend void cmXMLParserStartElement(void*, const char*, const char**);
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friend void cmXMLParserEndElement(void*, const char*);
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friend void cmXMLParserCharacterDataHandler(void*, const char*, int);
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};
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#endif
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