455 lines
10 KiB
C++
455 lines
10 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: parse.cxx,v $
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* $Revision: 1.12 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <parse.hxx>
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#include <string.h>
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#include <iostream>
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#include <xmlelem.hxx>
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#if (_MSC_VER >=1400)
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#pragma warning(disable:4365)
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#endif
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#ifdef UNX
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#define strnicmp strncasecmp
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#endif
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// NOT FULLY DEFINED SERVICES
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#define AssertionOf(x) \
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{if (!(x)) {std::cerr << "Assertion failed: " << #x << __FILE__ << __LINE__ << std::endl; exit(3); }}
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X2CParser::X2CParser( XmlElement & o_rDocumentData )
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: // sFileName,
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nFileLine(0),
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pDocumentData(&o_rDocumentData),
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// sWord,
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text(0)
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{
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}
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X2CParser::~X2CParser()
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{
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}
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bool
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X2CParser::LoadFile( const char * i_sFilename )
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{
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sFileName = i_sFilename;
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nFileLine = 1;
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// Load file:
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if ( ! LoadXmlFile( aFile, i_sFilename ) )
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return false;
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// Test correct end:
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const char * pLastTag = strrchr(aFile.operator const char *(),'<');
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if (pLastTag == 0)
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return false;
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if ( strnicmp(pLastTag+2, pDocumentData->Name().str(), pDocumentData->Name().l()) != 0
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|| strnicmp(pLastTag, "</", 2) != 0 )
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return false;
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if (strchr(pLastTag,'>') == 0)
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return false;
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return true;
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}
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void
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X2CParser::Parse()
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{
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// Parse:
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text = aFile.operator const char *();
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Parse_XmlDeclaration();
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Parse_Doctype();
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pDocumentData->Parse(*this);
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}
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bool
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X2CParser::Parse( const char * i_sFilename )
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{
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bool ret = LoadFile(i_sFilename);
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if (ret)
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Parse();
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return ret;
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}
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void
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X2CParser::Parse_XmlDeclaration()
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{
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Goto('<');
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if ( IsText("<?xml") )
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{
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Goto_And_Pass('>');
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}
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}
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void
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X2CParser::Parse_Doctype()
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{
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Goto('<');
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if ( IsText("<!DOCTYPE") )
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Goto_And_Pass('>');
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}
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void
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X2CParser::Parse_Sequence( DynamicList<XmlElement> & o_rElements,
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const Simstr & i_sElementName )
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{
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CheckAndPassBeginTag(i_sElementName.str());
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unsigned int i_max = o_rElements.size();
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for (unsigned i = 0; i < i_max; ++i)
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{
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o_rElements[i]->Parse(*this);
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} // end for
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CheckAndPassEndTag(i_sElementName.str());
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}
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void
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X2CParser::Parse_FreeChoice( DynamicList<XmlElement> & o_rElements )
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{
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unsigned nSize = o_rElements.size();
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for ( bool bBreak = false; !bBreak; )
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{
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bBreak = true;
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for ( unsigned i = 0; i < nSize; ++i )
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{
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Goto('<');
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if ( IsBeginTag(o_rElements[i]->Name().str()) )
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{
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o_rElements[i]->Parse(*this);
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bBreak = false;
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break;
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}
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} // end for i
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} // end for !bBreak
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}
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void
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X2CParser::Parse_List( ListElement & o_rListElem )
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{
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for ( Goto('<'); IsBeginTag(o_rListElem.Name().str()); Goto('<') )
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{
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XmlElement * pNew = o_rListElem.Create_and_Add_NewElement();
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pNew->Parse(*this);
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}
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}
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void
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X2CParser::Parse_Text( Simstr & o_sText,
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const Simstr & i_sElementName,
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bool i_bReverseName )
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{
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if ( ! CheckAndPassBeginTag(i_sElementName.str()) )
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return;
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// Add new Element
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GetTextTill( o_sText, '<', i_bReverseName );
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o_sText.remove_trailing_blanks();
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CheckAndPassEndTag(i_sElementName.str());
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}
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void
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X2CParser::Parse_MultipleText( List<Simstr> & o_rTexts,
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const Simstr & i_sElementName,
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bool i_bReverseName )
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{
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for ( Goto('<'); IsBeginTag(i_sElementName.str()); Goto('<') )
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{
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Simstr sNew;
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Parse_Text(sNew, i_sElementName, i_bReverseName);
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if (sNew.l() > 0)
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o_rTexts.push_back(sNew);
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}
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}
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void
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X2CParser::Parse_SglAttr( Simstr & o_sAttrValue,
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const Simstr & i_sElementName,
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const Simstr & i_sAttrName )
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{
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Goto('<');
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if ( !IsBeginTag(i_sElementName.str()) )
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SyntaxError("unexpected element");
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Move( i_sElementName.l() + 1 );
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Pass_White();
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if (*text == '>')
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SyntaxError("no attribute found, where one was expected");
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Simstr sAttrName;
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Get_Attribute(o_sAttrValue, sAttrName);
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if (sAttrName != i_sAttrName)
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SyntaxError("unknown attribute found");
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Pass_White();
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if (strncmp(text,"/>",2) != 0)
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SyntaxError("missing \"/>\" at end of empty element");
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Move(2);
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}
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void
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X2CParser::Parse_MultipleAttr( List<Simstr> & o_rAttrValues,
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const Simstr & i_sElementName,
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const List<Simstr> & i_rAttrNames )
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{
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Goto('<');
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if ( !IsBeginTag(i_sElementName.str()) )
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SyntaxError("unexpected element");
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Move( i_sElementName.l() + 1 );
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Simstr sAttrName;
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Simstr sAttrValue;
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unsigned nSize = i_rAttrNames.size();
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unsigned i;
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for ( Pass_White(); *text != '/'; Pass_White() )
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{
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Get_Attribute(sAttrValue, sAttrName);
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for ( i = 0; i < nSize; ++i )
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{
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if ( i_rAttrNames[i] == sAttrName )
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{
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o_rAttrValues[i] = sAttrValue;
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break;
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}
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}
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if (i == nSize)
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SyntaxError("unknown attribute found");
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}
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Move(2);
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}
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void
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X2CParser::Get_Attribute( Simstr & o_rAttrValue,
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Simstr & o_rAttrName )
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{
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GetTextTill( o_rAttrName, '=');
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while (*(++text) != '"')
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{
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if (*text == '\0')
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SyntaxError("unexpected end of file");
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}
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++text;
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GetTextTill( o_rAttrValue, '"');
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++text;
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}
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bool
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X2CParser::IsText( const char * i_sComparedText )
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{
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return strnicmp( text, i_sComparedText, strlen(i_sComparedText) ) == 0;
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}
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bool
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X2CParser::IsBeginTag( const char * i_sTagName )
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{
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return strnicmp( text+1, i_sTagName, strlen(i_sTagName) ) == 0
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&& *text == '<';
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}
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bool
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X2CParser::IsEndTag( const char * i_sTagName )
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{
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return strnicmp( text+2, i_sTagName, strlen(i_sTagName) ) == 0
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&& strnicmp( text, "</", 2 ) == 0;
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}
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void
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X2CParser::Goto( char i_cNext )
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{
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while (*text != i_cNext)
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{
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TestCurChar();
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++text;
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}
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}
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void
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X2CParser::Goto_And_Pass( char i_cNext )
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{
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Goto(i_cNext);
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++text;
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}
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void
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X2CParser::Move( int i_nForward )
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{
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text += i_nForward;
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}
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void
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X2CParser::Pass_White()
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{
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while (*text <= 32)
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{
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TestCurChar();
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++text;
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}
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}
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void
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X2CParser::GetTextTill( Simstr & o_rText,
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char i_cEnd,
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bool i_bReverseName )
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{
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char * pResult = &sWord[0];
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char * pSet;
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for ( pSet = pResult;
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*text != i_cEnd;
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++text )
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{
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TestCurChar();
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*pSet++ = *text;
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}
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while ( *pResult < 33 && *pResult > 0 )
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++pResult;
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while ( pSet > pResult ? *(pSet-1) < 33 : false )
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pSet--;
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*pSet = '\0';
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if (i_bReverseName)
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{
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const unsigned int nMaxLen = 1000;
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if (strlen(pResult) < nMaxLen)
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{
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char * sBreak = strrchr(pResult,'.');
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if (sBreak != 0)
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{
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static char sScope[nMaxLen+10];
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static char sName[nMaxLen+10];
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unsigned nScopeLen = sBreak - pResult;
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strncpy ( sScope, pResult, nScopeLen ); // STRNCPY SAFE HERE
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sScope[nScopeLen] = '\0';
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strcpy( sName, sBreak + 1 ); // STRCPY SAFE HERE
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strcat( sName, " in " ); // STRCAT SAFE HERE
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strcat( sName, sScope ); // STRCAT SAFE HERE
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o_rText = sName;
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return;
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}
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}
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} // endif (i_bReverseName)
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o_rText = &sWord[0];
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}
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bool
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X2CParser::CheckAndPassBeginTag( const char * i_sElementName )
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{
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bool ret = true;
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Goto('<');
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if ( ! IsBeginTag(i_sElementName) )
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SyntaxError( "unexpected element");
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if (IsAbsoluteEmpty())
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ret = false;
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Goto_And_Pass('>');
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if (ret)
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Pass_White();
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return ret;
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}
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void
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X2CParser::CheckAndPassEndTag( const char * i_sElementName )
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{
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Pass_White();
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if ( !IsEndTag(i_sElementName) )
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SyntaxError("missing or not matching end tag");
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Goto_And_Pass('>');
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}
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bool
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X2CParser::IsAbsoluteEmpty() const
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{
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const char * pEnd = strchr(text+1, '>');
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if (pEnd != 0)
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{
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if ( *(pEnd-1) == '/' )
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{
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const char * pAttr = strchr(text+1, '"');
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if (pAttr == 0)
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return true;
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else if ( (pAttr-text) > (pEnd-text) )
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return true;
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}
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}
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return false;
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}
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void
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X2CParser::SyntaxError( const char * i_sText )
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{
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std::cerr
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<< "Syntax error "
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<< i_sText
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<< " in file: "
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<< sFileName.str()
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<< " in line "
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<< nFileLine
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<< "."
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<< std::endl;
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exit(3);
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}
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void
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X2CParser::TestCurChar()
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{
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// if (*text == '\0')
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// SyntaxError("unexpected end of file");
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// else
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if (*text == '\n')
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nFileLine++;
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}
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