/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the qt3to4 porting application of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "replacetoken.h"+
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#include "tokenreplacements.h"+
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#include <QByteArray>+
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+
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QT_BEGIN_NAMESPACE+
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+
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/*+
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    Add an entry to the tokenRuleLookup map for each token replacement rule.+
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*/+
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ReplaceToken::ReplaceToken(const QList<TokenReplacement*> &tokenReplacementRules)+
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:tokenReplacementRules(tokenReplacementRules)+
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{+
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    foreach (TokenReplacement* rep, tokenReplacementRules) {+
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        QByteArray key = rep->getReplaceKey();+
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        if(!key.isEmpty()) {+
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            tokenRuleLookup.insert(key, rep);+
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        }+
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    }+
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}+
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+
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TextReplacements ReplaceToken::getTokenTextReplacements(const TokenEngine::TokenContainer &container)+
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{+
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    TextReplacements textReplacements;+
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+
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    int t=0;+
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    const int numTokens = container.count();+
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    while(t < numTokens) {+
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        QByteArray tokenText = container.text(t);+
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        bool changed = false;+
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+
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        if(isPreprocessorDirective(tokenText)) {+
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            foreach(TokenReplacement *tokenReplacementRule, tokenReplacementRules) {+
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                if(!changed)+
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                    changed = tokenReplacementRule->doReplace(container, t, textReplacements);+
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                if(changed)+
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                    break;+
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            }+
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        } else if (isInterestingToken(tokenText.trimmed())) {+
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            foreach (TokenReplacement* value, tokenRuleLookup.values(tokenText)) {+
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                changed = value->doReplace(container, t, textReplacements);+
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                if(changed) {+
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                    goto end;+
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                }+
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            }+
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        }+
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    end:+
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        ++t;+
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    }+
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    return textReplacements;+
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}+
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+
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bool ReplaceToken::isInterestingToken(const QByteArray &text)+
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{+
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    return !(text.isEmpty() || text==";" || text=="(" || text==")" || text=="{" || text=="}" || text=="="+
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            || text=="+=" || text=="-=" || text=="if" || text=="then" || text=="else"+
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    );+
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}+
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+
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bool ReplaceToken::isPreprocessorDirective(const QByteArray &token)+
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{+
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    return (token[0]=='#');+
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}+
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+
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QT_END_NAMESPACE+
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