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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.jdk.core.util;
/**
* @author Jeff C. Phillips
* @author Don Dunne
* @author Karol M. Wilk
*/
public class Strings {
private final static String EMPTY_STRING = "";
private Strings() {
// Utility class
}
public static boolean isValid(CharSequence value) {
return value != null && value.length() > 0;
}
public static String emptyString() {
return EMPTY_STRING;
}
/**
* This method adjusts '&'-containing strings to break the keyboard shortcut ("Accelerator") feature some widgets
* offer, where &Test will make Alt+T a shortcut. This method breaks the accelerator by escaping ampersands.
*
* @return a string with doubled ampersands.
*/
public static String escapeAmpersands(String stringWithAmp) {
if (isValid(stringWithAmp)) {
return stringWithAmp.replace("&", "&&");
} else {
return null;
}
}
public static String intern(String str) {
if (str == null) {
return null;
}
return str.intern();
}
/**
* Will truncate string if necessary and add "..." to end if addDots and truncated
*/
public static String truncate(String value, int length, boolean addDots) {
if (value == null) {
return emptyString();
}
String toReturn = value;
if (Strings.isValid(value) && value.length() > length) {
int len = addDots && length - 3 > 0 ? length - 3 : length;
toReturn = value.substring(0, Math.min(length, len)) + (addDots ? "..." : emptyString());
}
return toReturn;
}
public static String truncate(String value, int length) {
return truncate(value, length, false);
}
public static String unquote(String nameReference) {
String toReturn = nameReference;
if (Strings.isValid(nameReference) && nameReference.contains("\"")) {
toReturn = nameReference.replaceAll("\\\"", emptyString());
}
return toReturn;
}
public static String quote(String nameReference) {
String toReturn = nameReference;
if (Strings.isValid(nameReference)) {
toReturn = String.format("\"%s\"", nameReference);
}
return toReturn;
}
}
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