1 // © 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html#License 3 /* 4 ******************************************************************************* 5 * Copyright (C) 1998-2004, International Business Machines Corporation and * 6 * others. All Rights Reserved. * 7 ******************************************************************************* 8 * 9 * Created on Apr 14, 2003 10 * 11 ******************************************************************************* 12 */ 13 package com.ibm.icu.dev.tool.layout; 14 15 import com.ibm.icu.impl.Utility; 16 17 /** 18 * This class contains utility methods for dealing with 19 * four-letter tags. 20 * 21 * @author emader 22 * 23 */ 24 public class TagUtilities 25 { makeTag(String tag)26 public static String makeTag(String tag) 27 { 28 if (tag == null || tag.length() == 0) { 29 return "0x00000000"; 30 } 31 32 int tagValue = 0; 33 34 for (int i = 0; i < 4; i += 1) { 35 tagValue <<= 8; 36 tagValue += (int) ((i < tag.length()? tag.charAt(i) : ' ') & 0xFF); 37 } 38 39 return "0x" + Utility.hex(tagValue, 8); 40 } 41 42 // public static String makeTagOld(String tag) 43 // { 44 // if (tag == null || tag.length() == 0) { 45 // return "0x00000000"; 46 // } 47 // 48 // StringBuffer result = new StringBuffer("LE_MAKE_TAG("); 49 // 50 // for (int i = 0; i < 4; i += 1) { 51 // if (i > 0) { 52 // result.append(", "); 53 // } 54 // 55 // result.append('\''); 56 // result.append(i < tag.length()? tag.charAt(i) : ' '); 57 // result.append('\''); 58 // } 59 // 60 // result.append(")"); 61 // 62 // return result.toString(); 63 // } 64 tagLabel(String tag)65 public static String tagLabel(String tag) 66 { 67 if (tag == null || tag.length() == 0) { 68 return "null"; 69 } else { 70 return tag.toLowerCase(); 71 } 72 } 73 74 } 75 76