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1
21
22 package com.ice.text;
23
24 import java.lang.*;
25 import java.text.*;
26 import java.util.*;
27
28
36
37 public class
38 HexNumberFormat extends Format
39 {
40 static public final String  RCS_ID = "$Id: HexNumberFormat.java,v 1.1 2002/03/14 09:55:00 deniger Exp $";
41 static public final String RCS_REV = "$Revision: 1.1 $";
42
43 private static char[] lowChars;
44 private static char[] uprChars;
45
46 private int count;
47 private String pattern;
48 private static char[] hexChars;
49
50 static
51 {
52 HexNumberFormat.lowChars = new char[20];
53 HexNumberFormat.uprChars = new char[20];
54
55 HexNumberFormat.uprChars[0] = HexNumberFormat.lowChars[0] = '0';
56 HexNumberFormat.uprChars[1] = HexNumberFormat.lowChars[1] = '1';
57 HexNumberFormat.uprChars[2] = HexNumberFormat.lowChars[2] = '2';
58 HexNumberFormat.uprChars[3] = HexNumberFormat.lowChars[3] = '3';
59 HexNumberFormat.uprChars[4] = HexNumberFormat.lowChars[4] = '4';
60 HexNumberFormat.uprChars[5] = HexNumberFormat.lowChars[5] = '5';
61 HexNumberFormat.uprChars[6] = HexNumberFormat.lowChars[6] = '6';
62 HexNumberFormat.uprChars[7] = HexNumberFormat.lowChars[7] = '7';
63 HexNumberFormat.uprChars[8] = HexNumberFormat.lowChars[8] = '8';
64 HexNumberFormat.uprChars[9] = HexNumberFormat.lowChars[9] = '9';
65 HexNumberFormat.uprChars[10] = 'A'; HexNumberFormat.lowChars[10] = 'a';
66 HexNumberFormat.uprChars[11] = 'B'; HexNumberFormat.lowChars[11] = 'b';
67 HexNumberFormat.uprChars[12] = 'C'; HexNumberFormat.lowChars[12] = 'c';
68 HexNumberFormat.uprChars[13] = 'D'; HexNumberFormat.lowChars[13] = 'd';
69 HexNumberFormat.uprChars[14] = 'E'; HexNumberFormat.lowChars[14] = 'e';
70 HexNumberFormat.uprChars[15] = 'F'; HexNumberFormat.lowChars[15] = 'f';
71 }
72
73 static public final HexNumberFormat
74 getInstance()
75 {
76 return new HexNumberFormat( "XXXXXXXX" );
77 }
78
79 public
80 HexNumberFormat( String pattern )
81 {
82 super();
83 this.pattern = pattern;
84 this.count = pattern.length();
85 this.hexChars =
86 ( pattern.charAt(0) == 'X'
87 ? HexNumberFormat.uprChars
88 : HexNumberFormat.lowChars );
89 }
90
91 public String
92 format( int hexNum )
93 throws IllegalArgumentException
94 {
95 FieldPosition pos = new FieldPosition(0);
96 StringBuffer hexBuf = new StringBuffer (8);
97
98 this.format( new Integer ( hexNum ), hexBuf, pos );
99
100 return hexBuf.toString();
101 }
102
103 public StringBuffer
104 format( Object hexInt, StringBuffer appendTo, FieldPosition fieldPos )
105 throws IllegalArgumentException
106 {
107 char[] hexBuf = new char[16];
108
109 int end = fieldPos.getEndIndex();
110 int beg = fieldPos.getBeginIndex();
111
112 int hexNum = ((Integer ) hexInt).intValue();
113
114 for ( int i = 7 ; i >= 0 ; --i )
115 {
116 hexBuf[i] = this.hexChars[ (hexNum & 0x0F) ];
117 hexNum = hexNum >> 4;
118 }
119
120 for ( int i = (8 - this.count) ; i < 8 ; ++i )
121 {
122 appendTo.append( hexBuf[i] );
123 }
124
125 return appendTo;
126 }
127
128 public int
129 parse( String source )
130 throws ParseException
131 {
132 throw new ParseException( "unimplemented!", 0 );
133 }
134
135 public Object
136 parseObject( String source, ParsePosition pos )
137 {
138 return null;
139 }
140
141 }
142
143 |
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