Mercurial > hg > truffle
view graal/com.oracle.max.base/src/com/sun/max/lang/Chars.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
---|---|
date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | e233f5660da4 |
children |
line wrap: on
line source
/* * Copyright (c) 2007, 2011, 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. * * 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.max.lang; import com.sun.max.util.*; /** */ public final class Chars { private Chars() { } public static final int SIZE = 2; public static final Range VALUE_RANGE = new Range(Character.MIN_VALUE, Character.MAX_VALUE); public static boolean isHexDigit(char c) { switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': return true; } return false; } public static boolean isOctalDigit(char c) { if (c < '0') { return false; } return c <= '7'; } public static String toJavaLiteral(char c) { if (c == '\n') { return "'\\n'"; } if (c == '\t') { return "'\\t'"; } if (c == '\r') { return "'\\r'"; } if (c < ' ' || c > 127) { return "'\\" + Integer.toOctalString(c) + "'"; } return "'" + c + "'"; } }