/*
* Copyright (C) 2012 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.googlecode.eyesfree.braille.translate;
/**
* Translates from text to braille and the other way according to a
* particular translation table.
*/
public interface BrailleTranslator {
/**
* Translates a string into the corresponding dot patterns and returns the
* resulting byte array. Returns {@code null} on error.
*/
byte[] translate(String text);
/**
* Translates the braille {@code cells} into the corresponding text, which
* is returned. Returns {@code null} on error.
*/
String backTranslate(byte[] cells);
}