highlightrule.h

//
// Author: Lorenzo Bettini <http://www.lorenzobettini.it>, (C) 2004-2008
//
// Copyright: See COPYING file that comes with this distribution
//

#ifndef HIGHLIGHTRULE_H_
#define HIGHLIGHTRULE_H_

#include <string>
#include <boost/shared_ptr.hpp>

#include "highlightstate.h"

namespace srchilite {

struct HighlightToken;
struct MatchingParameters;

typedef std::deque<std::string> ElemList;

class HighlightRule {
    ElemList elemList;

    HighlightStatePtr nextState;

    std::string additionalInfo;

    int exitLevel;

    bool nested;

    bool needsReferenceReplacement;

    bool hasSubexpressions;

public:
    HighlightRule();
    HighlightRule(const std::string &name);
    virtual ~HighlightRule();

    virtual bool tryToMatch(const std::string &s, HighlightToken &token,
            const MatchingParameters &params);

    virtual bool tryToMatch(std::string::const_iterator start,
            std::string::const_iterator end, HighlightToken &token,
            const MatchingParameters &params) = 0;

    virtual const std::string toString() const = 0;

    virtual void replaceReferences(const ReplacementList &rep) = 0;

    virtual HighlightRule *clone() = 0;

    const HighlightStatePtr getNextState() const {
        return nextState;
    }
    void setNextState(HighlightStatePtr _nextState) {
        nextState = _nextState;
    }

    void addElem(const std::string &name);

    const ElemList &getElemList() const {
        return elemList;
    }

    int getExitLevel() const {
        return exitLevel;
    }
    void setExitLevel(int l) {
        exitLevel = l;
    }

    bool isNested() const {
        return nested;
    }
    void setNested(bool n) {
        nested = n;
    }

    bool getNeedsReferenceReplacement() const {
        return needsReferenceReplacement;
    }

    void setNeedsReferenceReplacement(bool b = true) {
        needsReferenceReplacement = b;
    }

    bool getHasSubexpressions() const {
        return hasSubexpressions;
    }

    void setHasSubexpressions(bool b = true) {
        hasSubexpressions = b;
    }

    std::string getAdditionalInfo() const {
        return additionalInfo;
    }

    void setAdditionalInfo(const std::string &info) {
        additionalInfo = info;
    }
};

}

#endif /*HIGHLIGHTRULE_H_*/