Android Open Source - nsa-away Language Code Helper

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright 2011 Robert Theis/*w  w w. ja va2  s  .co m*/
 *
 * 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 org.sector67.nsaaway.ocr.complex.language;

import android.content.Context;
import android.content.res.Resources;
import android.util.Log;

import org.sector67.nsaaway.R;

/**
 * Class for handling functions relating to converting between standard language
 * codes, and converting language codes to language names.
 */
public class LanguageCodeHelper {
  public static final String TAG = "LanguageCodeHelper";

  /**
   * Private constructor to enforce noninstantiability
   */
  private LanguageCodeHelper() {
    throw new AssertionError();
  }

  /**
   * Map an ISO 639-3 language code to an ISO 639-1 language code.
   * 
   * There is one entry here for each language recognized by the OCR engine.
   * 
   * @param languageCode
   *            ISO 639-3 language code
   * @return ISO 639-1 language code
   */
  public static String mapLanguageCode(String languageCode) {    
    if (languageCode.equals("eng")) { // English
      return "en";
    } else {
      return "";
    }
  }

  /**
   * Map the given ISO 639-3 language code to a name of a language, for example,
   * "Spanish"
   * 
   * @param context
   *            interface to calling application environment. Needed to access
   *            values from strings.xml.
   * @param languageCode
   *            ISO 639-3 language code
   * @return language name
   */
  public static String getOcrLanguageName(Context context, String languageCode) {
    Resources res = context.getResources();
    String[] language6393 = res.getStringArray(R.array.iso6393);
    String[] languageNames = res.getStringArray(R.array.languagenames);
    int len;

    // Finds the given language code in the iso6393 array, and takes the name with the same index
    // from the languagenames array.
    for (len = 0; len < language6393.length; len++) {
      if (language6393[len].equals(languageCode)) {
        Log.d(TAG, "getOcrLanguageName: " + languageCode + "->"
            + languageNames[len]);
        return languageNames[len];
      }
    }
    
    Log.d(TAG, "languageCode: Could not find language name for ISO 693-3: "
        + languageCode);
    return languageCode;
  }


}

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