com.google.gwt.i18n.shared.WordCountDirectionEstimator.java Source code

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Here is the source code for com.google.gwt.i18n.shared.WordCountDirectionEstimator.java

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/*
 * Copyright 2010 Google Inc.
 * 
 * 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.google.gwt.i18n.shared;

import com.google.gwt.i18n.client.HasDirection.Direction;

/**
 * Direction estimator that uses the "word count" heuristic.
 * 
 * <p> Note: this is probably the recommended estimator for most use cases.
 */
public class WordCountDirectionEstimator extends DirectionEstimator {

    /**
     * An instance of WordCountDirectionEstimator, to be returned by {@link #get}.
     */
    private static final WordCountDirectionEstimator instance = new WordCountDirectionEstimator();

    /**
     * Get an instance of WordCountDirectionEstimator.
     * 
     * @return An instance of WordCountDirectionEstimator.
     */
    public static WordCountDirectionEstimator get() {
        return instance;
    }

    /**
     * Estimates the direction of a given string using the "word count" heuristic,
     * as defined at {@link BidiUtils#estimateDirection}.
     *
     * @param str Input string.
     * @return Direction The estimated direction of {@code str}.
     */
    @Override
    public Direction estimateDirection(String str) {
        return BidiUtils.get().estimateDirection(str);
    }
}