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/*
* SPDX-License-Identifier: Apache-1.1
*
* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2003 The Apache Software Foundation.
* Copyright (c) 2010 Dmitry Naumenko ([email protected])
* Copyright (c) 2015-2016 Brenden Kromhout and contributors to java-diff-utils
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*/
package difflib;
import java.nio.charset.Charset;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
public class Utils {
public static final Charset UTF_8 = Charset.forName("UTF-8");
/**
* Replaces all tabs with 4 spaces.
* @param str The string.
* @return
*/
public static String expandTabs(String str) {
return str.replace("\t", " ");
}
/**
* Replaces all opening an closing tags with < or >.
* @param str
* @return
*/
public static String htmlEntites(String str) {
return str.replace("<", "<").replace(">", ">");
}
public static String normalize(String str) {
return expandTabs(htmlEntites(str));
}
public static List normalize(List list) {
List result = new LinkedList();
for (String line : list) {
result.add(normalize(line));
}
return result;
}
public static List wrapText(List list, int columnWidth) {
List result = new LinkedList();
for (String line : list) {
result.add(wrapText(line, columnWidth));
}
return result;
}
/**
* Wrap the text with the given column width
* @param line the text
* @param columnWidth the given column
* @return the wrapped text
*/
public static String wrapText(String line, int columnWidth) {
int lenght = line.length();
int delimiter = " ".length();
int widthIndex = columnWidth;
for (int count = 0; lenght > widthIndex; count++) {
line = line.subSequence(0, widthIndex + delimiter * count) + " "
+ line.substring(widthIndex + delimiter * count);
widthIndex += columnWidth;
}
return line;
}
/**
* Join a list of strings using a specified separator.
* @param strList List of strings.
* @param sep String to put between items when joining.
* @return Joined string.
*/
static String join(List strList, String sep) {
StringBuilder builder = new StringBuilder();
for (final Iterator i = strList.iterator(); i.hasNext(); ) {
final String s = i.next();
builder.append(s);
if (i.hasNext()) builder.append(sep);
}
return builder.toString();
}
}