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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* Header READER.CPP
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*
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*/
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#include "READER.H"
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Reader::Reader()
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{
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iLexAnal = NULL;
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}
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boolean Reader::Open(const String& aFilename)
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{
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boolean state;
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String string = aFilename;
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if (iLexAnal != NULL)
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delete iLexAnal;
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iLexAnal = new LexAnal(string.Text());
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if (iLexAnal)
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{
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state = etrue;
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iLex =& (iLexAnal->iLex);
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iLexAnal->Read(); // reads first lexical
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}
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else
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state = efalse;
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return state;
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}
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Reader::~Reader()
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{
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if (iLexAnal != NULL)
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delete iLexAnal;
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}
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boolean Reader::_EOF()
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{
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return ((iLex->iType) == ELexEOF);
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}
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boolean Reader::NewLine()
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{
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boolean state;
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if (iLex->iType == ELexNL)
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{
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iLexAnal->Read();
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state = etrue;
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}
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else
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{
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Error(String("Newline expected"));
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state = efalse;
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}
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return state;
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}
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boolean Reader::Number(int& aNumber)
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{
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boolean state;
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if (iLex->iType == ELexNumber)
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{
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aNumber = iLex->iNumber;
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iLexAnal->Read();
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state = etrue;
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}
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else
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{
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Error(String("Number expected"));
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state = efalse;
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}
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return state;
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}
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boolean Reader::IdentComp(const String& aIdent)
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{
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boolean state;
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if (iLex->iType == ELexIdent)
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{
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if (aIdent == iLex->iText)
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{
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iLexAnal->Read();
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state = etrue;
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}
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else
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state = efalse;
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}
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else
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{
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state = efalse;
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}
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return state;
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}
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boolean Reader::IdentCopy(String& aIdent)
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{
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boolean state;
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if (iLex->iType == ELexIdent)
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{
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aIdent = iLex->iText;
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iLexAnal->Read();
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state = etrue;
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}
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else
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{
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Error(String("Identifier expected"));
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state = efalse;
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}
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return state;
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}
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boolean Reader::StringCopy(String& aString)
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{
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boolean state;
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if (iLex->iType == ELexString)
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{
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aString = iLex->iText;
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iLexAnal->Read();
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state = etrue;
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}
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else
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{
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Error(String("String expected"));
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state = efalse;
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}
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return state;
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}
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boolean Reader::Operator(char& aCh)
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{
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boolean state;
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if (iLex->iType == ELexOperator)
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{
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aCh = iLex->iText[0];
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iLexAnal->Read();
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state = etrue;
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}
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else
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{
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Error(String("Operator expected"));
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state = efalse;
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}
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return state;
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}
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EXPORT_C void Reader::Error(const String& aString)
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{
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cerr << "Error: " << aString;
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iLexAnal->Report();
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while ((iLex->iType != ELexNL) && (iLex->iType != ELexEOF))
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iLexAnal->Read();
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}
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