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Copy pathChars.java
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88 lines (80 loc) · 2.52 KB
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/*
* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
*
* Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product
* that is described in this document. In particular, and without limitation, these intellectual property
* rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or
* more additional patents or pending patent applications in the U.S. and in other countries.
*
* U.S. Government Rights - Commercial software. Government users are subject to the Sun
* Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its
* supplements.
*
* Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or
* registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks
* are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the
* U.S. and other countries.
*
* UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open
* Company, Ltd.
*/
package com.sun.max.lang;
import com.sun.max.util.*;
/**
* @author Bernd Mathiske
*/
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 + "'";
}
}