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/*
* Copyright (c) 2005, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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/*
*******************************************************************************
* Copyright (C) 1996-2009, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
package jdk.internal.icu.text;
/**
* ReplaceableString is an adapter class that implements the
* Replaceable API around an ordinary StringBuffer.
*
* Note: This class does not support attributes and is not
* intended for general use. Most clients will need to implement
* {@link Replaceable} in their text representation class.
*
*
Copyright © IBM Corporation 1999. All rights reserved.
*
* @see Replaceable
* @author Alan Liu
* @stable ICU 2.0
*/
public class ReplaceableString implements Replaceable {
private StringBuffer buf;
/**
* Construct a new object with the given initial contents.
* @param str initial contents
* @stable ICU 2.0
*/
public ReplaceableString(String str) {
buf = new StringBuffer(str);
}
/**
* Construct a new object using buf for internal
* storage. The contents of buf at the time of
* construction are used as the initial contents. Note!
* Modifications to buf will modify this object, and
* vice versa.
* @param buf object to be used as internal storage
* @stable ICU 2.0
*/
public ReplaceableString(StringBuffer buf) {
this.buf = buf;
}
/**
* Return the number of characters contained in this object.
* Replaceable API.
* @stable ICU 2.0
*/
public int length() {
return buf.length();
}
/**
* Return the character at the given position in this object.
* Replaceable API.
* @param offset offset into the contents, from 0 to
* length() - 1
* @stable ICU 2.0
*/
public char charAt(int offset) {
return buf.charAt(offset);
}
/**
* Copies characters from this object into the destination
* character array. The first character to be copied is at index
* srcStart; the last character to be copied is at
* index srcLimit-1 (thus the total number of
* characters to be copied is srcLimit-srcStart). The
* characters are copied into the subarray of dst
* starting at index dstStart and ending at index
* dstStart + (srcLimit-srcStart) - 1.
*
* @param srcStart the beginning index to copy, inclusive;
* {@code 0 <= start <= limit}.
* @param srcLimit the ending index to copy, exclusive;
* {@code start <= limit <= length()}.
* @param dst the destination array.
* @param dstStart the start offset in the destination array.
* @stable ICU 2.0
*/
public void getChars(int srcStart, int srcLimit, char dst[], int dstStart) {
if (srcStart != srcLimit) {
buf.getChars(srcStart, srcLimit, dst, dstStart);
}
}
}