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iText, a free Java-PDF library

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/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.itextpdf.text.pdf.hyphenation;

import java.util.ArrayList;

/**
 * This interface is used to connect the XML pattern file parser to
 * the hyphenation tree.
 *
 * @author Carlos Villegas 
 */
public interface PatternConsumer {

    /**
     * Add a character class.
     * A character class defines characters that are considered
     * equivalent for the purpose of hyphenation (e.g. "aA"). It
     * usually means to ignore case.
     * @param chargroup character group
     */
    void addClass(String chargroup);

    /**
     * Add a hyphenation exception. An exception replaces the
     * result obtained by the algorithm for cases for which this
     * fails or the user wants to provide his own hyphenation.
     * A hyphenatedword is a vector of alternating String's and
     * {@link Hyphen Hyphen} instances
     */
    void addException(String word, ArrayList