tokenconfiguration.h

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/*
 | Author: Michael Schmidt;
 |         Gunnar Jehl 
 |
 | ************************* SOFTWARE LICENSE AGREEMENT ***********************
 | This source code is published under the BSD License.
 |
 | See file 'LICENSE.txt' that comes with this distribution or
 | http://dbis.informatik.uni-freiburg.de/index.php?project=GCX/license.php
 | for the full license agreement.
 |
 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 | POSSIBILITY OF SUCH DAMAGE.
 | ****************************************************************************
*/

#ifndef TOKENCONFIGURATION_H
#define TOKENCONFIGURATION_H

#include "projectiontree.h"
#include "runtimeexception.h"

class TokenConfiguration {

  public:
    TokenConfiguration(ProjectionTree * pt);

    TokenConfiguration(TokenConfiguration * parent);

    virtual ~ TokenConfiguration();

    void createRoleList(vector < Role * >&roles,
                        vector < unsigned >&role_counts);

    TokenConfiguration *applyTag(TAG t);

    TokenConfiguration *applyText();

    inline void addPassiveTokens(unsigned i, unsigned n) {
        passive_tokens[i] += n;
    } void print(OutputStream & dos, bool is_text = false);

    inline vector < unsigned >getActiveTokens() {
        return active_tokens;
    }

    inline void setActiveTokens(unsigned i, unsigned n) {
        active_tokens[i] = n;
    }

    inline vector < unsigned >getPassiveTokens() {
        return passive_tokens;
    }

    inline void setPassiveTokens(unsigned i, unsigned n) {
        passive_tokens[i] = n;
    }

    inline unsigned getActiveTokensById(unsigned i) {
        return active_tokens[i];
    }

    inline unsigned getPassiveTokensById(unsigned i) {
        return passive_tokens[i];
    }

    unsigned getLastActiveTokenCountFor(unsigned token_id);

    inline ProjectionTreeLabels *getLabels() {
        return labels;
    }

    bool isEmpty();

    bool isOutput();

    bool hasActiveToken();

    unsigned sumUpActiveTokenCountFor(unsigned token_id);

    bool forceChildKeep();

    bool keepSubtree();

    bool skipSubtree();

  private:
    TokenConfiguration * parent;

    ProjectionTreeLabels *labels;

    vector < unsigned >active_tokens;

    vector < unsigned >passive_tokens;
};

#endif // TOKENCONFIGURATION_H

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