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/*
* Copyright (C) 2006 The Android Open Source Project
*
* 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 android.text.method;
/**
* This transformation method causes any newline characters (\n) to be
* displayed as spaces instead of causing line breaks, and causes
* carriage return characters (\r) to have no appearance.
*/
public class SingleLineTransformationMethod
extends ReplacementTransformationMethod {
private static char[] ORIGINAL = new char[] { '\n', '\r' };
private static char[] REPLACEMENT = new char[] { ' ', '\uFEFF' };
/**
* The characters to be replaced are \n and \r.
*/
protected char[] getOriginal() {
return ORIGINAL;
}
/**
* The character \n is replaced with is space;
* the character \r is replaced with is FEFF (zero width space).
*/
protected char[] getReplacement() {
return REPLACEMENT;
}
public static SingleLineTransformationMethod getInstance() {
if (sInstance != null)
return sInstance;
sInstance = new SingleLineTransformationMethod();
return sInstance;
}
private static SingleLineTransformationMethod sInstance;
}
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