// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// 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.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS 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 COPYRIGHT HOLDER OR 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.
package jodd.util;
/**
* Pool of <code>String</code> constants to prevent repeating of
* hard-coded <code>String</code> literals in the code.
* Due to fact that these are <code>public static final</code>
* they will be inlined by java compiler and
* reference to this class will be dropped.
* There is <b>no</b> performance gain of using this pool.
* Read: http://java.sun.com/docs/books/jls/third_edition/html/lexical.html#3.10.5
* <ul>
* <li>Literal strings within the same class in the same package represent references to the same <code>String</code> object.</li>
* <li>Literal strings within different classes in the same package represent references to the same <code>String</code> object.</li>
* <li>Literal strings within different classes in different packages likewise represent references to the same <code>String</code> object.</li>
* <li>Strings computed by constant expressions are computed at compile time and then treated as if they were literals.</li>
* <li>Strings computed by concatenation at run time are newly created and therefore distinct.</li>
* </ul>
*/
public interface StringPool {
String JODD = "jodd";
String AMPERSAND = "&";
String AND = "and";
String AT = "@";
String ASTERISK = "*";
String STAR = ASTERISK;
String BACK_SLASH = "\\";
String COLON = ":";
String COMMA = ",";
String DASH = "-";
String DOLLAR = "$";
String DOT = ".";
String DOTDOT = "..";
String DOT_CLASS = ".class";
String DOT_JAVA = ".java";
String EMPTY = "";
String EQUALS = "=";
String FALSE = "false";
String SLASH = "/";
String HASH = "#";
String HAT = "^";
String LEFT_BRACE = "{";
String LEFT_BRACKET = "(";
String LEFT_CHEV = "<";
String NEWLINE = "\n";
String N = "n";
String NO = "no";
String NULL = "null";
String OFF = "off";
String ON = "on";
String PERCENT = "%";
String PIPE = "|";
String PLUS = "+";
String QUESTION_MARK = "?";
String EXCLAMATION_MARK = "!";
String QUOTE = "\"";
String RETURN = "\r";
String TAB = "\t";
String RIGHT_BRACE = "}";
String RIGHT_BRACKET = ")";
String RIGHT_CHEV = ">";
String SEMICOLON = ";";
String SINGLE_QUOTE = "'";
String BACKTICK = "`";
String SPACE = " ";
String TILDA = "~";
String LEFT_SQ_BRACKET = "[";
String RIGHT_SQ_BRACKET = "]";
String TRUE = "true";
String UNDERSCORE = "_";
String UTF_8 = "UTF-8";
String US_ASCII = "US-ASCII";
String ISO_8859_1 = "ISO-8859-1";
String Y = "y";
String YES = "yes";
String ONE = "1";
String ZERO = "0";
String DOLLAR_LEFT_BRACE= "${";
String CRLF = "\r\n";
String HTML_NBSP = " ";
String HTML_AMP = "&";
String HTML_QUOTE = """;
String HTML_LT = "<";
String HTML_GT = ">";
// ---------------------------------------------------------------- array
String[] EMPTY_ARRAY = new String[0];
byte[] BYTES_NEW_LINE = "\n".getBytes();
}